2010 Chile Earthquake
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The 2010 Chile earthquake and tsunami ( es, Terremoto del 27F) occurred off the coast of central
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
on Saturday, 27 February at 03:34
local time Local time is the time observed in a specific locality. There is no canonical definition. Originally it was mean solar time, but since the introduction of time zones it is generally the time as determined by the time zone in effect, with daylight s ...
(06:34 UTC), having a magnitude of 8.8 on the
moment magnitude scale The moment magnitude scale (MMS; denoted explicitly with or Mw, and generally implied with use of a single M for magnitude) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment. It was defined in a 1979 pape ...
, with intense shaking lasting for about three minutes. It was felt strongly in six Chilean regions (from
Valparaíso Valparaíso (; ) is a major city, seaport, naval base, and educational centre in the commune of Valparaíso, Chile. "Greater Valparaíso" is the second largest metropolitan area in the country. Valparaíso is located about northwest of Santiago ...
in the north to Araucanía in the south) that together make up about 80 percent of the country's population. According to the
United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, ...
(USGS) the cities experiencing the strongest shaking—VIII (''Severe'') on the
Mercalli intensity scale The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the eff ...
(MM)—were Concepción, Arauco, and Coronel. According to Chile's Seismological Service, Concepción experienced the strongest shaking at MM IX (''Violent''). The earthquake was felt in the capital
Santiago Santiago (, ; ), also known as Santiago de Chile, is the capital and largest city of Chile as well as one of the largest cities in the Americas. It is the center of Chile's most densely populated region, the Santiago Metropolitan Region, whose ...
at MM VII (''Very strong'') or MM VIII. Tremors were felt in many
Argentine Argentines (mistakenly translated Argentineans in the past; in Spanish (masculine) or (feminine)) are people identified with the country of Argentina. This connection may be residential, legal, historical or cultural. For most Argentines, s ...
cities, including
Buenos Aires Buenos Aires ( or ; ), officially the Autonomous City of Buenos Aires ( es, link=no, Ciudad Autónoma de Buenos Aires), is the capital and primate city of Argentina. The city is located on the western shore of the Río de la Plata, on South ...
, Córdoba, Mendoza, and
La Rioja La Rioja () is an autonomous community and province in Spain, in the north of the Iberian Peninsula. Its capital is Logroño. Other cities and towns in the province include Calahorra, Arnedo, Alfaro, Haro, Santo Domingo de la Calzada, an ...
. Tremors were felt as far north as the city of Ica in southern
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(approx. away). The earthquake triggered a
tsunami A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explo ...
which devastated several coastal towns in south-central Chile and damaged the port at
Talcahuano Talcahuano () (From Mapudungun ''Tralkawenu'', "Thundering Sky") is a port city and commune in the Biobío Region of Chile. It is part of the Greater Concepción conurbation. Talcahuano is located in the south of the Central Zone of Chile. Geo ...
. Tsunami warnings were issued in 53 countries, and the wave caused minor damage in the
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area of California and in the
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of Japan, where damage to the fisheries business was estimated at ¥6.26 billion (US$66.7 million). The earthquake also generated a blackout that affected 93 percent of the Chilean population and which went on for several days in some locations.
President President most commonly refers to: *President (corporate title) *President (education), a leader of a college or university *President (government title) President may also refer to: Automobiles * Nissan President, a 1966–2010 Japanese ful ...
Michelle Bachelet Verónica Michelle Bachelet Jeria (; born 29 September 1951) is a Chilean politician who served as United Nations High Commissioner for Human Rights from 2018 to 2022. She previously served as President of Chile from 2006 to 2010 and 2014 to 201 ...
declared a " state of catastrophe" and sent military troops to take control of the most affected areas. According to official sources, 525 people lost their lives, 25 people went missing and about 9% of the population in the affected regions lost their homes. On 10 March, Swiss Reinsurance Co. estimated that the Chilean quake would cost insurance companies between 4 and 7 billion dollars. The rival German-based
Munich Re Munich Re Group or Munich Reinsurance Company (german: Münchener Rück; Münchener Rückversicherungs-Gesellschaft) is a German multinational insurance company based in Munich, Germany. It is one of the world's leading reinsurers. ERGO, a Muni ...
AG made the same estimate. Earthquake's losses to the economy of Chile are estimated at US$15–30 billion.


Location/Epicenter

According to the USGS, the
epicenter The epicenter, epicentre () or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Surface damage Before the instrumental pe ...
of the earthquake was about off the coast of
Pelluhue Pelluhue (in Mapudungun: ''land of clams'') is a town and commune in the Cauquenes Province of central Chile's seventh region of Maule. Geography The commune of Pelluhue has an area of and is bordered on the north by Chanco, on the south by C ...
, a town in the Maule Region. This is about west of the village of Chovellén, southwest of the town of Pelluhue and at a point approximately away from the following four provincial capitals:
Talca Talca () is a List of cities in Chile, city and Communes of Chile, commune in Chile located about south of Santiago, Chile, Santiago, and is the capital of both Talca Province and Maule Region (7th Region of Chile). As of the 2012 census, the ...
(to the north-east), Linares (to the east),
Chillán Chillán () is the capital List of cities in Chile, city of the Ñuble Region in the Diguillín Province of Chile located about south of the country's capital, Santiago, near the geographical center of the country. It is the capital of the new ...
(to the south-east) and Concepción (to the south). Chile's Seismological Service located the quake's epicenter at about off the coast of
Ñuble Region The Ñuble Region ( es, Región de Ñuble), officially the Region of Ñuble ( es, Región de Ñuble), is — since 5 September 2018 – one of Chile's sixteen regions. It spans an area of , making it the smallest region in Chile in terms of area ...
in the
Biobío Region The Biobío Region ( es, Región del Biobío ), is one of Chile's sixteen regions of Chile, regions (first-order administrative divisions). With a population of 1.5 million, thus being the third most populated region in Chile, it is divided int ...
. This is north of Concepción and south-west of Talca.


Seismology and geology

The earthquake took place along the boundary between the
Nazca Nazca (; sometimes spelled Nasca; qu, Naska) is a city and system of valleys on the southern coast of Peru. It is also the name of the largest existing town in the Nazca Province. The name is derived from the Nazca culture, which flourished in ...
and
South American South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...
tectonic plates Plate tectonics (from the la, label=Late Latin, tectonicus, from the grc, τεκτονικός, lit=pertaining to building) is the generally accepted scientific theory that considers the Earth's lithosphere to comprise a number of large ...
at a location where they
converge Converge may refer to: * Converge (band), American hardcore punk band * Converge (Baptist denomination), American national evangelical Baptist body * Limit (mathematics) * Converge ICT, internet service provider in the Philippines *CONVERGE CFD s ...
at a rate of eighty millimeters (3 in) a year. This earthquake was characterized by a thrust-faulting focal mechanism, caused by the
subduction Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the ...
of the Nazca plate beneath the South American Tectonic Plates. The end-regions of the rupture zone coincided with the Andean
orocline An orocline — from the Greek words for "mountain" and "to bend" — is a bend or curvature of an orogenic (mountain building) belt imposed after it was formed. The term was introduced by S. Warren Carey in 1955 in a paper setting forth how comp ...
s of Maipo (33° S) and Arauco (37° S). This has been interpreted as suggesting a link between upper plate (South American plate)
structure A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as ...
and rupture length. Chile has been at a convergent plate boundary that generates
megathrust earthquake Megathrust earthquakes occur at convergent plate boundaries, where one tectonic plate is forced underneath another. The earthquakes are caused by slip along the thrust fault that forms the contact between the two plates. These interplate earthqua ...
s since the
Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ' ...
era (500 million years ago). In historical times the Chilean coast has suffered many megathrust earthquakes along this plate boundary, including the strongest earthquake ever measured, the 1960 Valdivia earthquake. More recently, the boundary ruptured during the 2007 Tocopilla earthquake in northern Chile. The segment of the fault zone which ruptured in this earthquake was estimated to be over long with a displacement of almost 10 meters, or 120 years of accumulated plate movement. It lay immediately north of the segment which ruptured in the great earthquake of 1960. Preliminary measurements show that the entire South American Plate moved abruptly westward during the quake. A research collaborative of Ohio State and other institutions have found, using
GPS The Global Positioning System (GPS), originally Navstar GPS, is a Radionavigation-satellite service, satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of t ...
, that the earthquake shifted Santiago 28 cm (11 in) to the west-southwest and moved Concepción at least to the west. The earthquake also shifted other parts of South America from the
Falkland Islands The Falkland Islands (; es, Islas Malvinas, link=no ) is an archipelago in the South Atlantic Ocean on the Patagonian Shelf. The principal islands are about east of South America's southern Patagonian coast and about from Cape Dubouzet ...
to Fortaleza, Brazil. For example, it moved Argentina's capital of Buenos Aires about 2.5 cm (1 in) to the west. Several cities south of Cobquecura were also raised by up to 3 meters. The maximum recorded
peak ground acceleration Peak ground acceleration (PGA) is equal to the maximum ground acceleration that occurred during earthquake shaking at a location. PGA is equal to the amplitude of the largest absolute acceleration recorded on an wikt:accelerogram, accelerogram at a ...
was at Concepcion, with a value of 0.65 ''g'' (6.38 m/s2). The locality of
Tirúa Tirúa () is a Chilean commune and town in Arauco Province, Biobío Region. The 2010 Chile earthquake led to a permanent uplift of Tirúa of about 180 cm above sea level, the highest recorded uplift related to the earthquake. This caused a large i ...
south of Concepción recorded a 180 cm uplift relative to sea level as result of the earthquake. This is the highest known uplift of the coast resulting from the earthquake. This uplift made a large islet emerge at the mouth of
Lebu River Lebu River an important river of the Arauco Province. It has his sources in the western slope of the Nahuelbuta Range to the east of the city and port of Lebu, capital of the province and named for the river. The Lebu is formed from the confluen ...
.


Compared with past earthquakes

This was the strongest earthquake affecting Chile since the magnitude 9.5 1960 Valdivia earthquake (the most energetic earthquake ever measured), and it was the strongest earthquake worldwide since the
2004 Indian Ocean earthquake An earthquake and a tsunami, known as the Boxing Day Tsunami and, by the scientific community, the Sumatra–Andaman earthquake, occurred at 07:58:53 local time (UTC+7) on 26 December 2004, with an epicentre off the west coast of northern Suma ...
and until the 2011 Tōhoku earthquake. It is tied with the 1906 Ecuador–Colombia and 1833 Sumatra earthquakes as the sixth strongest earthquake ever measured, approximately 500 times more powerful than the 7.0 Mw earthquake in Haiti one month prior in January 2010.


Aftershocks

An
aftershock In seismology, an aftershock is a smaller earthquake that follows a larger earthquake, in the same area of the main shock, caused as the displaced crust adjusts to the effects of the main shock. Large earthquakes can have hundreds to thousand ...
of 6.2 was recorded 20 minutes after the initial quake.Latest Earthquakes M5.0+ in the World
, by
USGS The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, a ...
.
Two more aftershocks of magnitudes 5.4 and 5.6 followed within an hour of the initial quake. The
USGS The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, a ...
said that "a large vigorous aftershock sequence can be expected from this earthquake". By 6 March UTC, more than 130 aftershocks had been registered, including thirteen above magnitude 6.0. Shortly after the mainshock seismologists installed a dense network of seismometers along the whole rupture area. This network captured 20,000 aftershocks in the 6 months after the mainshock and shows a detailed picture of the structure of the Chilean margin. Seismicity is focused in the depth range 25–35 km and in a deeper band of between 45 and 50 km depth. Around 10.000 aftershocks occurred in the region of two large aftershocks in the Pichilemu region. A 6.9-magnitude offshore earthquake struck approximately 300 kilometers southwest of, and less than 90 minutes after, the initial shock; however, it is not clear if that quake was related to the main shock. A separate
earthquake An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, from ...
of magnitude 6.3 occurred in
Salta Salta () is the capital and largest city in the Argentine province of the same name. With a population of 618,375 according to the 2010 census, it is also the 7th most-populous city in Argentina. The city serves as the cultural and economic ce ...
, Argentina, at 15:45 UTC on 27 February, at a depth of ; two people were injured and one died in Salta. This earthquake was followed on 1 March at 06:32 UTC by a magnitude 4.9 aftershock. Four other earthquakes above M5.0, some possible aftershocks, also occurred near the border in Argentina following the Chile earthquake; a magnitude 5.0 earthquake occurred in Mendoza on 28 February, a M5.3 earthquake in Neuquen and a M5.2 in San Juan on 2 March, and a M5.1 quake in Mendoza on 4 March. Another strong earthquake occurred on 4 March, at 22:39 UTC in
Antofagasta Antofagasta () is a port city in northern Chile, about north of Santiago. It is the capital of Antofagasta Province and Antofagasta Region. According to the 2015 census, the city has a population of 402,669. After the Spanish American wars ...
in northern Chile, with a magnitude of 6.3. Minor quakes generated by the main one could be felt as far away as
São Paulo São Paulo (, ; Portuguese for 'Saint Paul') is the most populous city in Brazil, and is the capital of the state of São Paulo, the most populous and wealthiest Brazilian state, located in the country's Southeast Region. Listed by the GaWC a ...
, Brazil, located about away from Concepción. Since the major earthquake, and as of 15 March, at least four to forty >M5.0 earthquakes have been recorded daily in the vicinity of the main earthquake, including four above magnitude 6.0 between 3 March and 6 March. On 5 March, two aftershocks above M6.0 were reported. The first was a 6.3-magnitude off the coast of the
Biobío Region The Biobío Region ( es, Región del Biobío ), is one of Chile's sixteen regions of Chile, regions (first-order administrative divisions). With a population of 1.5 million, thus being the third most populated region in Chile, it is divided int ...
. The second was near the epicenter of the original quake at 08:47 local time with a magnitude of 6.6. On 11 March, the March 2010 Chile earthquake (magnitude 6.9, treated by some as an aftershock of the February 2010 earthquake) was reported, followed quickly by further aftershocks measuring 6.7 and 6.0. The epicenter of the 6.9 quake was in Pichilemu, O'Higgins Region. On 15 March, two aftershocks of the February 2010 earthquake were reported, one at magnitude 6.2 at 08:08:28 local time offshore Maule, and another at magnitude 6.7 with the epicenter located offshore the Biobío Region, near
Cobquecura Cobquecura is a commune in the Region of Ñuble (Spanish: ''comuna'') in the Province of Itata Chile's Region of Ñuble. The town is located on the northwest Pacific coast of the Itata Province about southwest of the national capital of Sant ...
, at 23:21:58 local time. This tremor was followed by two minor aftershocks, one occurring 45 minutes later, measuring M5.5. No tsunami was reported and there were no tsunami warnings issued. On 17 March, at 14:38:37 local time, an earthquake of magnitude 5.2 was recorded in Aisén, in Southern Chile. Another magnitude 5.2 earthquake was recorded in Los Lagos the next day. On 26 March, at 10:52:06 local time, a magnitude 6.2 earthquake hit the
Atacama The Atacama Desert ( es, Desierto de Atacama) is a desert plateau in South America covering a 1,600 km (990 mi) strip of land on the Pacific coast, west of the Andes Mountains. The Atacama Desert is the driest nonpolar desert in the w ...
region, in Northern Chile. The Biobio Region of Chile had strong aftershocks of this earthquake. The first one was a magnitude 6.7 MW earthquake that struck off the coast of Biobío,
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
, at 23:21 on 15 March 2010 at the
epicenter The epicenter, epicentre () or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Surface damage Before the instrumental pe ...
, at a depth of . The second earthquake struck on land in the region at 22:58 ( UTC) on 2 April 2010 at 5.9 MW and at a depth of 39 km. The third struck on 10:03 ( UTC) on 23 April 2010 at 6.2 MW. The
Pacific Tsunami Warning Center The Pacific Tsunami Warning Center (PTWC) is one of two tsunami warning centers that are operated by NOAA in the United States. Headquartered on Ford Island, HI, the PTWC is part of an international tsunami warning system (TWS) program and s ...
said that historical data indicates that this quake would not generate a tsunami but still advised of the possibility. On 3 May, at 19:09 a 6.4 MW earthquake magnitude struck off Biobío,
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
, at the
epicenter The epicenter, epicentre () or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Surface damage Before the instrumental pe ...
, at a depth of . The epicenter was south of Lebu. On 14 July 2010, another 6.5 magnitude earthquake occurred in the area.


2011 aftershocks

On 2 January at 17:20:18 local time, a 7.1 magnitude aftershock occurred 70 kilometers northwest of
Temuco Temuco () is a city and commune, capital of the Cautín Province and of the Araucanía Region in southern Chile. The city is located south of Santiago. The city grew out from a fort of the same name established in 1881 during Chile's invasion ...
, Chile. On
Lautaro Lautaro (Anglicized as 'Levtaru') ( arn, Lef-Traru " swift hawk") (; 1534? – April 29, 1557) was a young Mapuche toqui known for leading the indigenous resistance against Spanish conquest in Chile and developing the tactics that would conti ...
, Cañete,
Nueva Imperial Nueva Imperial (New Imperial, in English) a city and commune in the south of Chile. It is located in Cautín Province in the Araucanía Region. Nueva Imperial lies about to the west of Temuco, the regional capital. Geography Nueva Imperial is lo ...
,
Traiguén Traiguén () is a Chilean city and commune in the Malleco Province, Araucanía Region. Demographics According to the 2002 census of the National Statistics Institute, Traiguén spans an area of and has 19,534 inhabitants (9,734 men and 9,800 w ...
and Carahue the quake was felt at intensity VI (''Strong'') of the
Mercalli intensity scale The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the eff ...
. In Temuco it was perceived at intensity V (''Moderate''). In
Talcahuano Talcahuano () (From Mapudungun ''Tralkawenu'', "Thundering Sky") is a port city and commune in the Biobío Region of Chile. It is part of the Greater Concepción conurbation. Talcahuano is located in the south of the Central Zone of Chile. Geo ...
, Concepción,
Chillán Chillán () is the capital List of cities in Chile, city of the Ñuble Region in the Diguillín Province of Chile located about south of the country's capital, Santiago, near the geographical center of the country. It is the capital of the new ...
, Osorno and
Valdivia Valdivia (; Mapuche: Ainil) is a city and commune in southern Chile, administered by the Municipality of Valdivia. The city is named after its founder Pedro de Valdivia and is located at the confluence of the Calle-Calle, Valdivia, and Cau-Cau R ...
it shook at intensity IV (''Light''). According to the
USGS The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, a ...
the earthquake's epicenter was located on the ground, east of the coastal town of
Tirúa Tirúa () is a Chilean commune and town in Arauco Province, Biobío Region. The 2010 Chile earthquake led to a permanent uplift of Tirúa of about 180 cm above sea level, the highest recorded uplift related to the earthquake. This caused a large i ...
in the
Araucanía Region The Araucanía ( ), La Araucanía Region ( es, Región de La Araucanía ) is one of Chile's 16 first-order administrative divisions, and comprises two provinces: Malleco in the north and Cautín in the south. Its capital and largest city is Te ...
. However, according to the
University of Chile The University of Chile ( es, Universidad de Chile) is a public research university in Santiago, Chile. It was founded on November 19, 1842, and inaugurated on September 17, 1843.
's Seismological Service, the seismic event was located 134 kilometers off the coast of Tirúa, measuring a magnitude 6.9 ML. The University of Chile also reported that the localities who received the strongest shaking (VI) were
Curanilahue Curanilahue () is a Chilean commune and city in Arauco Province, Biobío Region. Its name comes from Mapundungun "Cura", meaning "Stone", and "Nilahue" meaning "Ford". Demographics According to the 2002 census of the National Statistics Instit ...
, Lebu and
Tirúa Tirúa () is a Chilean commune and town in Arauco Province, Biobío Region. The 2010 Chile earthquake led to a permanent uplift of Tirúa of about 180 cm above sea level, the highest recorded uplift related to the earthquake. This caused a large i ...
. In Concepción, Talcahuano and Temuco it was felt at intensity V, and in Chillán and Valdivia at intensity IV. A magnitude 6.2 Mw aftershock struck the coast of Biobío,
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
at a shallow depth of 15.1 km (9.4 mi) on 1 June 2011 at 08:55 local time (12:55   UTC). It was centered just offshore
Arauco Province Arauco Province ( es, Provincia de Arauco) is one of four provinces of the Chilean region of Bío Bío. It spans a coastal area of just south of the mouth of the Biobío River, the traditional demarcation between the nation's major natural reg ...
near a moderately populated area, with most structures in its vicinity reported to be resistant to earthquake shaking. Strong shaking registering at VI on the
Mercalli intensity scale The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the eff ...
was felt in Lebu, just 7 km (4 mi) south of the epicenter, lasting for approximately one minute. Some residents in coastal areas panicked and evacuated their homes. The earthquake was followed by a moderate magnitude 5.1 Mw tremor that occurred about 52 minutes later to the northeast of the main shock epicenter at an estimated depth of 26.9 km (16.7 mi). Initial estimates from the
USGS The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, a ...
placed its intensity at a magnitude of 6.4 Mw.


Geophysical impact

Seismologists Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other ...
estimate that the earthquake was so powerful that it may have shortened the length of the day by 1.26
microseconds A microsecond is a unit of time in the International System of Units (SI) equal to one millionth (0.000001 or 10−6 or ) of a second. Its symbol is μs, sometimes simplified to us when Unicode is not available. A microsecond is equal to 1000 n ...
and moved the Earth's figure axis by 2.7 milliarcseconds (about 8 cm). Precise
GPS The Global Positioning System (GPS), originally Navstar GPS, is a Radionavigation-satellite service, satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of t ...
measurement indicated the telluric movement moved the entire city of Concepción to the west. The capital
Santiago Santiago (, ; ), also known as Santiago de Chile, is the capital and largest city of Chile as well as one of the largest cities in the Americas. It is the center of Chile's most densely populated region, the Santiago Metropolitan Region, whose ...
experienced a displacement of almost west, and even
Buenos Aires Buenos Aires ( or ; ), officially the Autonomous City of Buenos Aires ( es, link=no, Ciudad Autónoma de Buenos Aires), is the capital and primate city of Argentina. The city is located on the western shore of the Río de la Plata, on South ...
, about from Concepción, shifted . It is estimated that Chile's territory could have expanded as a result. The earthquake also caused
seiche A seiche ( ) is a standing wave in an enclosed or partially enclosed body of water. Seiches and seiche-related phenomena have been observed on lakes, reservoirs, swimming pools, bays, harbors, caves and seas. The key requirement for formation o ...
s to occur in
Lake Pontchartrain Lake Pontchartrain ( ) is an estuary located in southeastern Louisiana in the United States. It covers an area of with an average depth of . Some shipping channels are kept deeper through dredging. It is roughly oval in shape, about from west ...
to the north of
New Orleans New Orleans ( , ,New Orleans
Merriam-Webster.
; french: La Nouvelle-Orléans , es, Nuev ...
, United States, located nearly from the epicenter of the quake. In
Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest contine ...
a series of
icequake A cryoseism, ice quake or frost quake, is a seismic event caused by a sudden cracking action in frozen soil or rock saturated with water or ice, or by stresses generated at frozen lakes. As water drains into the ground, it may eventually free ...
s were triggered by the 2010 earthquake in Chile.


Damage and casualties

People were found dead after the earthquake struck, mostly under buildings and inside cars. Many people were also seriously injured. Most injuries were reported in Santiago and Maule. According to an
Associated Press Television News {{About, the global video news agency, TVRI television programme, Dunia Dalam Berita, the airlines of Ethiopia, Ethiopian Airlines, the Indonesian public television, TVRI Associated Press Television News, also referred to as AP Video and often abbr ...
cameraman, some buildings collapsed in
Santiago Santiago (, ; ), also known as Santiago de Chile, is the capital and largest city of Chile as well as one of the largest cities in the Americas. It is the center of Chile's most densely populated region, the Santiago Metropolitan Region, whose ...
and there were power outages in parts of the city. A fire was reported in a chemical plant on the outskirts of Santiago and caused the evacuation of the neighborhood. Santiago's
International Airport An international airport is an airport with customs and border control facilities enabling passengers to travel between countries around the world. International airports are usually larger than domestic airports and they must feature longer ...
seemed to have been damaged and the airport authority closed off all flight operations for 24 hours from around 12:00 UTC. On Sunday, 28 February, Ricardo Ortega, head of the
Chilean Air Force "With full speed to the stars" , colours = Indigo White , colours_label = , march = Alte Kameraden , mascot = , anniversaries = 21 March ...
, said commercial airline services had been partially re-established and aircraft were being allowed to land in Santiago. Santiago's national Fine Arts Museum was badly damaged and did not reopen until 9 March 2010. An apartment building's two-story parking lot collapsed, wrecking 68 cars. According to one health official, three hospitals in Santiago collapsed, and a dozen more south of the capital also suffered significant damage. File:Casa Pelluhue tras terremoto 2010.jpg, House uprooted to the streets of Pelluhue after the tsunami. File:Chile Earthquake 2010 - Maipú 1.JPG, A severely damaged building in Maipú, Santiago. File:Canal ifarle tsunami.jpg, Tsunami in Talcahuano,
Biobío Region The Biobío Region ( es, Región del Biobío ), is one of Chile's sixteen regions of Chile, regions (first-order administrative divisions). With a population of 1.5 million, thus being the third most populated region in Chile, it is divided int ...
. File:Vespucio Norte Highway after 2010 earthquake.jpg, Collapsed Vespucio Norte Express Highway in Santiago. File:2010 Chile earthquake - Carretera de la fruta.jpg, Fruit Road, O'Higgins Region.
In Valparaíso, a tsunami wave of 1.29 m was reported. The port of Valparaíso was ordered to close due to the damage caused by the earthquake. The port started to resume limited operations on 28 February. In Viña del Mar, a touristic city and part of
Greater Valparaíso Greater Valparaíso (''Gran Valparaíso'') is the second largest metropolitan area in Chile, after Greater Santiago. It takes this name after the city of Valparaíso, the oldest city of the group and the most important harbour in Chile. It ...
, several buildings were structurally damaged, principally in the district Plan de Viña. Many cities in the Maule region were seriously affected by the earthquake which triggered more than 1000 landslides, a significant contributor to earthquake fatalities. Mapped from satellite images, most landslides occurring in the Principal Andean
Cordillera A cordillera is an extensive chain and/or network system of mountain ranges, such as those in the west coast of the Americas. The term is borrowed from Spanish, where the word comes from , a diminutive of ('rope'). The term is most commonly u ...
and a constrained area on the
Arauco Peninsula The Arauco Peninsula (Spanish: península de Arauco), is a peninsula in Southern Chile located in the homonymous Arauco Province. It projects northwest into the Pacific Ocean. The peninsula is located west of Cordillera de Nahuelbuta. Geologicall ...
. Curanipe, only 8 km (5 mi) from the epicenter, was hit by a
tsunami A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explo ...
after the earthquake and still remained isolated from outside as of 28 February. A surfer said the tsunami "...was like the one in Thailand, a sudden rise of water. One could not estimate the dimension of the wave, because it was advancing foam. There were 10 to 15 rises, the last one being at 08:30 in the morning." In
Talca Talca () is a List of cities in Chile, city and Communes of Chile, commune in Chile located about south of Santiago, Chile, Santiago, and is the capital of both Talca Province and Maule Region (7th Region of Chile). As of the 2012 census, the ...
, the capital of the Maule region, many dead were trapped in the rubble. The administrative building was uninhabitable, and the authorities had to be set up in the parade ground. All but two of the local hospital's thirteen wings were in ruins. Dr. Claudio Martínez was quoted as saying, "We're only keeping the people in danger of dying." Hospital staff attempted to transport some patients to Santiago on Sunday morning, but roads were blocked. Damaged buildings and fires were reported in Concepción. Rescue teams had difficulty accessing Concepción because of the damaged infrastructure. The fifteen-story residential building "Alto Río" toppled, lay on the ground horizontally, and trapped many of the residents. As the building was newly completed, 19 of the apartments were occupied and 36 were of unknown occupancy. A 2.34 m (7.68 ft) tsunami wave hit
Talcahuano Talcahuano () (From Mapudungun ''Tralkawenu'', "Thundering Sky") is a port city and commune in the Biobío Region of Chile. It is part of the Greater Concepción conurbation. Talcahuano is located in the south of the Central Zone of Chile. Geo ...
, a port city and part of the Concepción conurbation. The tsunami caused serious damage to port facilities and lifted boats out of the water. In the fishing town of
Dichato Dichato is a town along the coast of Chile, part of the municipality of Tomé in the northeast part of Greater Concepción. At the 2002 census it had 3,057 residents. The town was founded in 1826 by José Miguel Reyes The town was severely damage ...
, of 7,000 residents, it was the third tsunami wave that ended up being the most damaging. Dilapidated buildings could be seen on the streets of
Temuco Temuco () is a city and commune, capital of the Cautín Province and of the Araucanía Region in southern Chile. The city is located south of Santiago. The city grew out from a fort of the same name established in 1881 during Chile's invasion ...
, about 400 km (250 mi) from the epicenter. The adobe of some buildings fell. Façades fell in pieces and crushed cars. Two people were reported dead because of not having been able to escape from a nightclub. On 27 February, it was reported that "to find an open business is almost impossible" ("Encontrar un negocio abierto es casi imposible"). Further south, in the city of Valdivia damages to houses were restricted to areas of poor soil quality, chiefly former wetlands and artificial fills. Some pavements near the rivershore in Valdivia cracked and collapsed much like in the 1960 earthquake. Overall damages in Valdivia were few and highly localized. A survey showed that 434 persons in Valdivia had their homes damaged by the earthquake. The earthquake also triggered more than 1,000 landslides mapped from satellite images with most landslides occurring in the Principal Andean Cordillera and a constrained area on the Arauco Peninsula Landslides are a significant contributor to earthquake fatalities. In Chile, 370,000 homes were damaged. The final death toll of 525 victims and 25 people missing was announced by authorities in January 2011. This is down from early reports on 3 March of 802 people dead. The Chilean National Emergency Office ('' Oficina Nacional de Emergencia'') estimated that the intensity of the earthquake was 9 on the
Mercalli intensity scale The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the eff ...
in the
Biobío Region The Biobío Region ( es, Región del Biobío ), is one of Chile's sixteen regions of Chile, regions (first-order administrative divisions). With a population of 1.5 million, thus being the third most populated region in Chile, it is divided int ...
and 8 in Santiago. USGS put the intensity in
Talcahuano Talcahuano () (From Mapudungun ''Tralkawenu'', "Thundering Sky") is a port city and commune in the Biobío Region of Chile. It is part of the Greater Concepción conurbation. Talcahuano is located in the south of the Central Zone of Chile. Geo ...
at MM VIII, in Santiago and Concepción at MM VII and in Valparaíso at MM VI. On 10 March, Swiss Reinsurance Co. estimated that the Chilean quake would cost the insurance industry between 4 and 7 billion dollars. The same estimate was echoed by the rival German-based Munich Re AG. File:Terremoto Chile 2010-Incendio fabrica plastico.jpg, Fire at a plastics plant,
Santiago, Chile Santiago (, ; ), also known as Santiago de Chile, is the capital (political), capital and largest city of Chile as well as one of the largest cities in the Americas. It is the center of Chile's most densely populated Regions of Chile, region, t ...
. File:2010 Chile earthquake - Hospital of Temuco.jpg, ''Hernán Henríquez Hospital'' of Temuco had to be evacuated after the earthquake. File:2010 Chile earthquake - Car destroyed in Temuco.jpg, A car crushed by the rubble of a collapsed building in
Temuco Temuco () is a city and commune, capital of the Cautín Province and of the Araucanía Region in southern Chile. The city is located south of Santiago. The city grew out from a fort of the same name established in 1881 during Chile's invasion ...
.


Modified Mercalli intensities for some localities

Notes: USGS=United States Geological Survey, SS=Chile's Seismological Service.


Identified fatalities

The records of deaths were reported by a number of different agencies at different figures immediately after the earthquake. The official total is 525 dead, 25 missing not all of which are identified in the table below.


Population with destroyed or severely damaged homes

The table below shows the percentage of the regional population whose homes were destroyed or were severely damaged by the earthquake and tsunami in the six most affected regions. The data were collected between May and June 2010. Source:''
Casen Post-Earthquake Survey
Ministry of Planning.
South of
Araucanía Region The Araucanía ( ), La Araucanía Region ( es, Región de La Araucanía ) is one of Chile's 16 first-order administrative divisions, and comprises two provinces: Malleco in the north and Cautín in the south. Its capital and largest city is Te ...
, in the city of
Valdivia Valdivia (; Mapuche: Ainil) is a city and commune in southern Chile, administered by the Municipality of Valdivia. The city is named after its founder Pedro de Valdivia and is located at the confluence of the Calle-Calle, Valdivia, and Cau-Cau R ...
, 35 houses were destroyed and 44 others were damaged.


Humanitarian response

Despite President
Michelle Bachelet Verónica Michelle Bachelet Jeria (; born 29 September 1951) is a Chilean politician who served as United Nations High Commissioner for Human Rights from 2018 to 2022. She previously served as President of Chile from 2006 to 2010 and 2014 to 201 ...
's earlier statement that Chile would only ask for international aid once it had assessed the extent of the damage, leaders of many countries and intergovernmental organizations, including the United Nations and
European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...
, responded to the earthquake and sent messages of condolence to the government and people of Chile over the loss of life and property.
Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
,
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
, the United States, United Kingdom, People's Republic of China, Singapore,
Haiti Haiti (; ht, Ayiti ; French: ), officially the Republic of Haiti (); ) and formerly known as Hayti, is a country located on the island of Hispaniola in the Greater Antilles archipelago of the Caribbean Sea, east of Cuba and Jamaica, and ...
, and
Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's List of countries and dependencies by population, fifth-most populous country, with a population of almost 24 ...
were among the countries that responded earliest following the quake. Appeals for
humanitarian aid Humanitarian aid is material and logistic assistance to people who need help. It is usually short-term help until the long-term help by the government and other institutions replaces it. Among the people in need are the homeless, refugees, and ...
were issued by the UK-based
Oxfam Oxfam is a British-founded confederation of 21 independent charitable organizations focusing on the alleviation of global poverty, founded in 1942 and led by Oxfam International. History Founded at 17 Broad Street, Oxford, as the Oxford Co ...
,
Save the Children The Save the Children Fund, commonly known as Save the Children, is an international non-governmental organization established in the United Kingdom in 1919 to improve the lives of children through better education, health care, and economic ...
, and others. Chilean television host Don Francisco led a
telethon A telethon (a portmanteau of "television" and "marathon") is a televised fundraising event that lasts many hours or even days, the purpose of which is to raise money for a charitable, political or other purportedly worthy cause. Most telethons f ...
called '' Chile helps Chile'' with the goal of raising 15 billion
pesos The peso is the monetary unit of several countries in the Americas, and the Philippines. Originating in the Spanish Empire, the word translates to "weight". In most countries the peso uses the same sign, "$", as many currencies named "dollar" ...
(about US$29 million) needed to build 30,000 emergency houses (" mediaguas"). The charity event, which ran for 24 hours in Santiago starting on Friday 5 March at 22:00, was summoned by the government and organized by several Chilean NGOs. At 23:00 on Saturday the goal was doubled, collecting 30.2 billion pesos (about US$58 million). The Chilean NGO Un Techo para Chile constructed 23,886 transitional houses for families affected by the earthquake.


Conditions in the aftermath


Chaos and disorder

Nearly half the places in the country were declared "catastrophe zones", and curfews were imposed in some areas of looting and public disorder. On 28 February 2010, a day after the earthquake, some affected cities were chaotic, with extensive looting of
supermarkets A supermarket is a self-service shop offering a wide variety of food, beverages and household products, organized into sections. This kind of store is larger and has a wider selection than earlier grocery stores, but is smaller and more limit ...
in Concepción. Items stolen included not only food and other necessities, but also electronic goods and other durable merchandise. To control vandalism, a special force of ''carabineros'' (police) was sent to disperse rioters with
tear gas Tear gas, also known as a lachrymator agent or lachrymator (), sometimes colloquially known as "mace" after the early commercial aerosol, is a chemical weapon that stimulates the nerves of the lacrimal gland in the eye to produce tears. In ...
and water cannons. However, measures were taken late. The outgoing president didn't want to remind people of the Dictatorship years by militarizing the streets, thus failed to provide assistance on time to the city. When the situation became unsustainable and all sectors of the population were demanding actions, the government authorized the use of the military to control the affected cities. Despite these and other government acts (including the
curfew A curfew is a government order specifying a time during which certain regulations apply. Typically, curfews order all people affected by them to ''not'' be in public places or on roads within a certain time frame, typically in the evening and ...
s), pillaging continued in both urban and rural areas of the affected zones. Reportedly, military police arrested 160 in Concepción on 1 and 2 March. In Concepción, despite the militarization of the zone, mobs continued to steal from supermarkets and went as far as to set one store ablaze. The government warned looters they would face the full weight of the law, as penalties for stealing are increased under a state of catastrophe. A week after the quake the police—tipped by neighbors—arrested three people with massive quantities of looted goods stashed in their homes. Other looted goods such as mattresses, furniture, television sets and other electronic appliances were abandoned in the streets of Concepción during the following days. According to the
BBC #REDIRECT BBC #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped and thought all the concept and made my success in the 10th board exam. ...
...
on 5 March, the city and fishing port of
Talcahuano Talcahuano () (From Mapudungun ''Tralkawenu'', "Thundering Sky") is a port city and commune in the Biobío Region of Chile. It is part of the Greater Concepción conurbation. Talcahuano is located in the south of the Central Zone of Chile. Geo ...
, which lies but a few kilometers down the coast from Concepción, has been left largely to fend for itself. Neighbourhood vigilante groups, including one led by a public works employee with a gun license, and the few police present allow such behavior as residents' siphoning fuel from tanks at a petrol station, but step in if someone starts to attack a cash machine. One man stated, "I've personally saved dozens of people from attack in this apartment block." Chileans living in regions not affected by the earthquake (including those living abroad) also grieved, as they sought to learn more regarding kinsmen and friends affected by the earthquake. In the hardest-hit zones there was no communication with the exterior because of the failure of electricity and the destruction of telephone lines.


Prison escape

In the prison of El Manzano in Concepción, a
prison riot A prison riot is an act of concerted defiance or disorder by a group of prisoners against the prison administrators, prison officers, or other groups of prisoners. Prison riots have not been the subject of many academic studies or research inqui ...
began after a failed escape attempt by the inmates. Different parts of the prison were set afire and the riot was brought under control only after the guards shot into the air and received help from military units.
El Mercurio ''El Mercurio'' (known online as ''El Mercurio On-Line'', ''EMOL'') is a Chilean newspaper with editions in Valparaíso and Santiago. Its Santiago edition is considered the country's newspaper of record and it is considered the oldest daily in ...
, 1 March. Cuerpo C, page C13
By 1 March, prison guards in a prison in
Chillán Chillán () is the capital List of cities in Chile, city of the Ñuble Region in the Diguillín Province of Chile located about south of the country's capital, Santiago, near the geographical center of the country. It is the capital of the new ...
had recaptured 36 of 203 prisoners who had escaped following the earthquake. During their escape, prisoners burned seven houses close to the prison. A witness in
Chillán Chillán () is the capital List of cities in Chile, city of the Ñuble Region in the Diguillín Province of Chile located about south of the country's capital, Santiago, near the geographical center of the country. It is the capital of the new ...
asserted that he had been robbed by prisoners with a machine gun who had also forced his
girlfriend A girlfriend is a female friend, acquaintance or partner, usually a female companion with whom one is platonically, romantically, or sexually involved. In a romantic context, this normally signifies a committed relationship where the in ...
to kiss them. Another witness alleged
sexual molestation Sexual assault is an act in which one intentionally sexually touches another person without that person's consent, or coerces or physically forces a person to engage in a sexual act against their will. It is a form of sexual violence, which ...
by around twenty men who were believed to be escaped prisoners. The leading Chilean newspaper ''
El Mercurio ''El Mercurio'' (known online as ''El Mercurio On-Line'', ''EMOL'') is a Chilean newspaper with editions in Valparaíso and Santiago. Its Santiago edition is considered the country's newspaper of record and it is considered the oldest daily in ...
'' described the situation in Chillán as reminiscent of the "
Wild West The American frontier, also known as the Old West or the Wild West, encompasses the geography, history, folklore, and culture associated with the forward wave of American expansion in mainland North America that began with European colonial ...
".


Government response

Four hours after the earthquake, when the death count was still low, President Bachelet gave a press conference in which she informed the population of the situation and stated that Chile did not yet need international aid. However, about two million people were affected by the quake with more than 500,000 houses uninhabitable. In many cities, people slept in tents, in parks or simply on the streets for fear of aftershocks. The government began distributing food and other vital aid around the country. On 28 February, President Bachelet said that her government had reached an agreement with the major supermarkets which would allow them to give away basic foodstuffs in stock to people affected by the earthquake. By 28 February, the
Santiago Metro The Santiago Metro ( es, Metro de Santiago) is a rapid transit system serving the city of Santiago, the capital of Chile. It currently consists of seven lines (numbered 1-6 and 4A), 136 stations, and of revenue route. The system is managed by th ...
rapid-transit network was already partially up and running and expected to be fully operative on the following day, 1 March. On 4 March, President-elect
Sebastián Piñera Miguel Juan Sebastián Piñera Echenique OMCh (; born 1 December 1949) is a Chilean billionaire businessman and politician who served as president of Chile from 2010 to 2014 and again from 2018 to 2022. The son of a Christian Democratic polit ...
, who assumed office on 11 March, was quoted as saying that his goals were "to cope with the emergency needs of citizens, find people who are still missing, provide prompt and timely assistance to the sick and wounded, and restore law and order so that people can return to peace."


Economic recovery

Authorities of the central port city of San Antonio speaking on 3 March 2010, stated that the port had returned to eighty percent of capacity. On the same date, Raul Maturana, a spokesman for the Federation of Port Workers' union, stated that the port of Valparaíso was operating normally. However, ports in southern Chile, which were closer to the epicenter, remained closed. On 4 March, President Bachelet said that Chile would need international loans and three to four years to rebuild.


Food scarcity

On 10 March the National Commission for Agricultural emergencies (CNEA) assured that milk and wheat prices would not rise, despite fears of lack of fuel supply for transport and harvest of these products. In the same CNEA report the mill associations of central and southern Chile are said to have expressed that they had currently no production difficulties. Despite this on 11 March newspaper
La Segunda ''La Segunda'' ( es, The second one) is a Chilean afternoon daily newspaper, owned by El Mercurio SAP. Their tendency is conservative, is the first Chilean newspaper to disclose information that occurred in the morning because it is evening. Its ...
cited the president of the bakeries association complaining on unjustified price rises for flour, who said of cases of price rises of 10 to 20%. The earthquake affected production at the Compañía de Cervecerías Unidas (CCU) and Cervecería Chile factories that together have a 90% share of the Chilean beer market. With an average annual per capita consumption of 36 liters, scarcity caused prices to rise from 990–1500 to 2000 Chilean pesos per litre. CCU responded by increasing capacity of their plant in
Temuco Temuco () is a city and commune, capital of the Cautín Province and of the Araucanía Region in southern Chile. The city is located south of Santiago. The city grew out from a fort of the same name established in 1881 during Chile's invasion ...
that did not suffer major damage during the earthquake and by importing beer from their factories in Argentina. 50 trucks with beer are reported to have reached Santiago from Argentina. In March 2010, ten CCU executives said that the country will not run out of beer and that within two to three months production levels would be normalized. Liquor store owners expressed complaints regarding a beer
rationing Rationing is the controlled distribution of scarce resources, goods, services, or an artificial restriction of demand. Rationing controls the size of the ration, which is one's allowed portion of the resources being distributed on a particular ...
scheme implemented by CCU. The scarcity favored consumption of "premium beers" like Kunstmann and Paceña.


Tsunami

A tsunami warning was first declared for
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
and
Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...
, and a tsunami watch for
Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...
,
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
,
Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest contine ...
,
Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Cos ...
and
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
. The warning was later extended to a Pacific Ocean-wide warning, covering all coastal areas on the Pacific Ocean except the west coast of the United States, British Columbia, and Alaska. Hawaiian media reported that tsunami warning sirens first sounded at 06:00 local time. The U.S. Tsunami Warning Center issued advisories about potential tsunami of less than striking the Pacific Ocean coastline between California and most of Alaska late in the afternoon or through the evening 12 or more hours after the initial earthquake. Although the earthquake killed far fewer people than the Haitian earthquake less than 7 weeks prior, it was still devastating. The tsunami warning was cancelled for all countries except Japan and Russia in PTWC Bulletin 18 of 00:12 UTC on 28 February 2010. In general, tsunamis tend to come in several waves, of which the first may not be the highest. The U.S.
National Weather Service The National Weather Service (NWS) is an Government agency, agency of the Federal government of the United States, United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weathe ...
's
Pacific Tsunami Warning Center The Pacific Tsunami Warning Center (PTWC) is one of two tsunami warning centers that are operated by NOAA in the United States. Headquartered on Ford Island, HI, the PTWC is part of an international tsunami warning system (TWS) program and s ...
issued a tsunami warning throughout a huge swathe of the Pacific region, including
Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest contine ...
. In the Americas, the warning extended to
Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...
(including
Easter Island Easter Island ( rap, Rapa Nui; es, Isla de Pascua) is an island and special territory of Chile in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian Triangle in Oceania. The island is most famous for its nearl ...
),
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
,
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
,
Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...
,
El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south b ...
,
Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H ...
,
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
, and
Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Cos ...
. A warning was also issued for the Oceania and
Pacific Islands Collectively called the Pacific Islands, the islands in the Pacific Ocean are further categorized into three major island groups: Melanesia, Micronesia, and Polynesia. Depending on the context, the term ''Pacific Islands'' may refer to one of se ...
nations and territories of
American Samoa American Samoa ( sm, Amerika Sāmoa, ; also ' or ') is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the island country of Samoa. Its location is centered on . It is east of the International ...
,
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
, the
Cook Islands ) , image_map = Cook Islands on the globe (small islands magnified) (Polynesia centered).svg , capital = Avarua , coordinates = , largest_city = Avarua , official_languages = , lan ...
, the
Federated States of Micronesia The Federated States of Micronesia (; abbreviated FSM) is an island country in Oceania. It consists of four states from west to east, Yap, Chuuk, Pohnpei and Kosraethat are spread across the western Pacific. Together, the states comprise a ...
(including the FSM states of Chuuk,
Kosrae Kosrae ( ), formerly known as Kusaie or Strong's Island, is an island in the Federated States of Micronesia. The State of Kosrae is one of the four states of the Federated States of Micronesia, and includes the main island of Kosrae and a few near ...
,
Pohnpei Pohnpei "upon (''pohn'') a stone altar (''pei'')" (formerly known as Ponape or Ascension, Proto-Chuukic-Pohnpeic: ''*Fawo ni pei)'' is an island of the Senyavin Islands which are part of the larger Caroline Islands group. It belongs to Pohnpei ...
and
Yap Yap ( yap, Waqaab) traditionally refers to an island group located in the Caroline Islands of the western Pacific Ocean, a part of Yap State. The name "Yap" in recent years has come to also refer to the state within the Federated States of Micr ...
),
Fiji Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists ...
,
French Polynesia )Territorial motto: ( en, "Great Tahiti of the Golden Haze") , anthem = , song_type = Regional anthem , song = " Ia Ora 'O Tahiti Nui" , image_map = French Polynesia on the globe (French Polynesia centered).svg , map_alt = Location of Frenc ...
,
Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...
,
Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...
,
Jarvis Island Jarvis Island (; formerly known as Bunker Island or Bunker's Shoal) is an uninhabited coral island located in the South Pacific Ocean, about halfway between Hawaii and the Cook Islands. It is an unincorporated, unorganized territory of the Un ...
,
Johnston Island Johnston Atoll is an unincorporated territory of the United States, currently administered by the United States Fish and Wildlife Service (USFWS). Johnston Atoll is a National Wildlife Refuge and part of the Pacific Remote Islands Marine Nation ...
, the
Kermadec Islands The Kermadec Islands ( mi, Rangitāhua) are a subtropical island arc in the South Pacific Ocean northeast of New Zealand's North Island, and a similar distance southwest of Tonga. The islands are part of New Zealand. They are in total ar ...
,
Kiribati Kiribati (), officially the Republic of Kiribati ( gil, ibaberikiKiribati),Kiribati
''The Wor ...
,
Marcus Island , also known as Marcus Island, is an isolated Japanese coral atoll in the northwestern Pacific Ocean, located some southeast of Tokyo and east of the closest Japanese island, South Iwo Jima of the Ogasawara Islands, and nearly on a straight line ...
, the
Marshall Islands The Marshall Islands ( mh, Ṃajeḷ), officially the Republic of the Marshall Islands ( mh, Aolepān Aorōkin Ṃajeḷ),'' () is an independent island country and microstate near the Equator in the Pacific Ocean, slightly west of the Internati ...
,
Midway Island Midway Atoll (colloquial: Midway Islands; haw, Kauihelani, translation=the backbone of heaven; haw, Pihemanu, translation=the loud din of birds, label=none) is a atoll in the North Pacific Ocean. Midway Atoll is an insular area of the Unit ...
,
New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ...
,
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
,
Niue Niue (, ; niu, Niuē) is an island country in the South Pacific Ocean, northeast of New Zealand. Niue's land area is about and its population, predominantly Polynesian, was about 1,600 in 2016. Niue is located in a triangle between Tong ...
, the
Northern Mariana Islands The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI; ch, Sankattan Siha Na Islas Mariånas; cal, Commonwealth Téél Falúw kka Efáng llól Marianas), is an unincorporated territory and commonw ...
,
Palau Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the Caro ...
,
Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...
, Pitcairn Islands,
Samoa Samoa, officially the Independent State of Samoa; sm, Sāmoa, and until 1997 known as Western Samoa, is a Polynesian island country consisting of two main islands (Savai'i and Upolu); two smaller, inhabited islands (Manono Island, Manono an ...
, the
Solomon Islands Solomon Islands is an island country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and north-west of Vanuatu. It has a land area of , and a population of approx. 700,000. Its capita ...
,
Tokelau Tokelau (; ; known previously as the Union Islands, and, until 1976, known officially as the Tokelau Islands) is a dependent territory of New Zealand in the southern Pacific Ocean. It consists of three tropical coral atolls: Atafu, Nukunonu, a ...
,
Tonga Tonga (, ; ), officially the Kingdom of Tonga ( to, Puleʻanga Fakatuʻi ʻo Tonga), is a Polynesian country and archipelago. The country has 171 islands – of which 45 are inhabited. Its total surface area is about , scattered over in ...
,
Tuvalu Tuvalu ( or ; formerly known as the Ellice Islands) is an island country and microstate in the Polynesian subregion of Oceania in the Pacific Ocean. Its islands are situated about midway between Hawaii and Australia. They lie east-northeast ...
,
Wallis and Futuna Wallis and Futuna, officially the Territory of the Wallis and Futuna Islands (; french: Wallis-et-Futuna or ', Fakauvea and Fakafutuna: '), is a French island collectivity in the South Pacific, situated between Tuvalu to the northwest, Fiji ...
and
Wake Island Wake Island ( mh, Ānen Kio, translation=island of the kio flower; also known as Wake Atoll) is a coral atoll in the western Pacific Ocean in the northeastern area of the Micronesia subregion, east of Guam, west of Honolulu, southeast of To ...
. Tsunami warnings were also in effect as far away as
East East or Orient is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fa ...
and Southeast Asia including
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
,
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
,
Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...
, the
Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...
,
Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
and
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
. Coastal areas of Canada's westernmost province
British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...
was under a tsunami advisory, and this was the most alarming advisory as the earthquake occurred during the same time as the
2010 Winter Olympics )'' , nations = 82 , athletes = 2,626 , events = 86 in 7 sports (15 disciplines) , opening = February 12, 2010 , closing = February 28, 2010 , opened_by = Governor General Michaëlle Jean , cauldron = Catriona Le May DoanNancy GreeneWayne Gretz ...
in Vancouver. No large wave was expected to strike British Columbia, but strong local
ocean currents An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences. Depth contour ...
combined with a wave put low-lying coastal regions at risk of flooding. The first wave was expected to reach southern British Columbia at 15:11 local time. Residents were advised to avoid
beaches A beach is a landform alongside a body of water which consists of loose particles. The particles composing a beach are typically made from rock, such as sand, gravel, shingle, pebbles, etc., or biological sources, such as mollusc shel ...
,
harbors A harbor (American English), harbour (British English; see spelling differences), or haven is a sheltered body of water where ships, boats, and barges can be docked. The term ''harbor'' is often used interchangeably with ''port'', which is a ...
and
marinas A marina (from Spanish , Portuguese and Italian : ''marina'', "coast" or "shore") is a dock or basin with moorings and supplies for yachts and small boats. A marina differs from a port in that a marina does not handle large passenger ship ...
. A tsunami advisory was also issued for coastal areas of California,
Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...
,
Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...
and southern
Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
in the United States. This tsunami advisory was canceled as of 07:13 UTD on 28 February. Russian authorities lifted a tsunami alert for the
Kamchatka The Kamchatka Peninsula (russian: полуостров Камчатка, Poluostrov Kamchatka, ) is a peninsula in the Russian Far East, with an area of about . The Pacific Ocean and the Sea of Okhotsk make up the peninsula's eastern and wes ...
coast, after the arrival of a 0.8 m (2.6 ft) surge that caused no damage. The tsunami was also reported to be small along the Japanese coast, and passed without incident. Many coastal areas in Japan had been evacuated as a precaution. The projections use DART (
Deep-ocean Assessment and Reporting of Tsunamis Deep-ocean Assessment and Reporting of Tsunamis (DART) is a component of an enhanced tsunami warning system. By logging changes in seafloor temperature and pressure, and transmitting the data via a surface buoy to a ground station by satellit ...
) gauges spread along the sea floor, which is a fairly new technology. Initial deep sea readings showed wave height of 25 centimeters, which is huge for deep water, according to Gerard Fryer of the Pacific Tsunami Warning Center. He went on to say, "although it was huge, we didn't quite know what it meant because we haven't much experience with those. As we get more under our belts, we'll get better."


Chile

Some 30 minutes after the first shock, consecutive tsunamis hit coastal towns, among which Constitución suffered the hardest damage; subsequently, a tsunami amplitude of up to high was recorded in the sea at
Valparaíso Valparaíso (; ) is a major city, seaport, naval base, and educational centre in the commune of Valparaíso, Chile. "Greater Valparaíso" is the second largest metropolitan area in the country. Valparaíso is located about northwest of Santiago ...
.TSUNAMI BULLETIN NUMBER 004
by the
NOAA The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
Pacific Tsunami Warning Center The Pacific Tsunami Warning Center (PTWC) is one of two tsunami warning centers that are operated by NOAA in the United States. Headquartered on Ford Island, HI, the PTWC is part of an international tsunami warning system (TWS) program and s ...
A
wave In physics, mathematics, and related fields, a wave is a propagating dynamic disturbance (change from equilibrium) of one or more quantities. Waves can be periodic, in which case those quantities oscillate repeatedly about an equilibrium (res ...
amplitude The amplitude of a periodic variable is a measure of its change in a single period (such as time or spatial period). The amplitude of a non-periodic signal is its magnitude compared with a reference value. There are various definitions of amplit ...
of was recorded at
Talcahuano Talcahuano () (From Mapudungun ''Tralkawenu'', "Thundering Sky") is a port city and commune in the Biobío Region of Chile. It is part of the Greater Concepción conurbation. Talcahuano is located in the south of the Central Zone of Chile. Geo ...
in the
Biobío Region The Biobío Region ( es, Región del Biobío ), is one of Chile's sixteen regions of Chile, regions (first-order administrative divisions). With a population of 1.5 million, thus being the third most populated region in Chile, it is divided int ...
.
TSUNAMI BULLETINS–index
of frequently updated bulletins issued by the
Pacific Tsunami Warning Center The Pacific Tsunami Warning Center (PTWC) is one of two tsunami warning centers that are operated by NOAA in the United States. Headquartered on Ford Island, HI, the PTWC is part of an international tsunami warning system (TWS) program and s ...
, including the latest.
Robinson Crusoe Island Robinson Crusoe Island ( es, Isla Róbinson Crusoe, ), formerly known as Más a Tierra (), is the second largest of the Juan Fernández Islands, situated 670 km (362 nmi; 416 mi) west of San Antonio, Chile, in the South Pacific Oc ...
, the largest of the
Juan Fernández Islands The Juan Fernández Islands ( es, Archipiélago Juan Fernández) are a sparsely inhabited series of islands in the South Pacific Ocean reliant on tourism and fishing. Situated off the coast of Chile, they are composed of three main volcanic i ...
, was struck by a large wave which led to the deaths of four people on the island, with eleven people reported as missing, according to Provincial Governor Ivan De La Maza. President Bachelet is reported to have sent an aid mission to the remote island. As a precaution against the coming tsunami, partial evacuation was ordered in
Easter Island Easter Island ( rap, Rapa Nui; es, Isla de Pascua) is an island and special territory of Chile in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian Triangle in Oceania. The island is most famous for its nearl ...
, about 3,510 km (2,180 mi) away from the coast of Chile. The tsunami wave arrived in Easter Island at 12:05 UTC, measuring 0.35 m (1.15 ft). On 27 February, defense minister Francisco Vidal said that the
Chilean Navy The Chilean Navy ( es, Armada de Chile) is the naval warfare service branch of the Chilean Armed Forces. It is under the Ministry of National Defense. Its headquarters are at Edificio Armada de Chile, Valparaiso. History Origins and the Wars ...
had made a mistake by not immediately issuing a tsunami warning after the earthquake, a step that could have helped coastal villagers flee to higher ground sooner. However, an alarm was later sounded by port captains and saved some lives. Mariano Rojas Bustos, then head of Chile's oceanographic service SHOA, which is part of the country's navy, was later fired for the organization's failure to provide clear warnings about the tsunami.


Oceania

;New Zealand Initially, the New Zealand Ministry of Civil Defence and Emergency Management (CDEM) said they did not expect a tsunami to reach New Zealand, but later issued a warning stating that waves of up to high were likely for the eastern and later the entire
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
coast. By 19:55 UTC (08:40 local), CDEM reported wave activity of in the
Chatham Islands The Chatham Islands ( ) (Moriori: ''Rēkohu'', 'Misty Sun'; mi, Wharekauri) are an archipelago in the Pacific Ocean about east of New Zealand's South Island. They are administered as part of New Zealand. The archipelago consists of about te ...
, and surges were reported there later in the morning. A surge high hit the
South Island The South Island, also officially named , is the larger of the two major islands of New Zealand in surface area, the other being the smaller but more populous North Island. It is bordered to the north by Cook Strait, to the west by the Tasman ...
's
Banks Peninsula Banks Peninsula is a peninsula of volcanic origin on the east coast of the South Island of New Zealand. It has an area of approximately and encompasses two large harbours and many smaller bays and coves. The South Island's largest cit ...
, while surges up to high were reported in the northern
North Island The North Island, also officially named Te Ika-a-Māui, is one of the two main islands of New Zealand, separated from the larger but much less populous South Island by the Cook Strait. The island's area is , making it the world's 14th-largest ...
. By mid afternoon (local time), Civil Defence had downgraded the tsunami warning to an alert, while still advising that sea levels could change quickly for up to 24 hours from the initial surge. ;Antarctica The
U.S. Antarctic Program The United States Antarctic Program (or USAP; formerly known as the United States Antarctic Research Program or USARP and the United States Antarctic Service or USAS) is an organization of the United States government which has presence in the A ...
's coastal station along the
Antarctic Peninsula The Antarctic Peninsula, known as O'Higgins Land in Chile and Tierra de San Martín in Argentina, and originally as Graham Land in the United Kingdom and the Palmer Peninsula in the United States, is the northernmost part of mainland Antarctic ...
,
Palmer Station Palmer Station is a United States research station in Antarctica located on Anvers Island, the only US station located north of the Antarctic Circle. Initial construction of the station finished in 1968. The station, like the other U.S. Antarcti ...
, went on a tsunami alert shortly after the earthquake struck Chile. To prepare for a possible tsunami, station personnel removed all Zodiac boats from the water and moved any materials from low-lying areas that waves could have swept away. Personnel also retreated to the station's highest building, GWR, while the tsunami warning was in effect, Ellis said. Palmer personnel developed a tsunami emergency plan following the 2004 earthquake in the Indian Ocean that created a tsunami that killed more than 230,000 people in 14 countries. While no noticeable tsunami occurred at Palmer, the station tide monitor displayed bumps of several centimeters, signifying that a small wave had indeed reached the shores of Anvers Island. ;Australia The Joint Australian Tsunami Warning Center (JATWC) sent out tsunami warnings for
New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...
,
Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...
,
Lord Howe Island Lord Howe Island (; formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, part of the Australian state of New South Wales. It lies directly east of mainland P ...
,
Norfolk Island Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with ...
,
Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...
, and
Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...
. The organization warned of the possibility of dangerous waves, strong ocean currents and foreshore flooding to occur on the east coast of Australia for several hours on Sunday. As a result of the warnings, patrolled beaches in New South Wales and Queensland remained closed (red flags) and lifeguards ushered people to leave the water. However beach goers and surfers ignored the warnings. Numerous onlookers also crowded parts of the shore to view potential effects of the tsunami. The beach ban was lifted by the end of the day and there was no reports of damage, flooding or other emergencies. Tsunami waves of between 10 cm and 50 cm were recorded and their surges were believed to have created strong currents. Increases in sea levels include:
Norfolk Island Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with ...
50 cm, Gold Coast (Qld) 20 cm, Port Kembla (NSW) 14 cm, Southport (Tas) 17 cm. ;French Polynesia A wave measuring up to high struck portions of
French Polynesia )Territorial motto: ( en, "Great Tahiti of the Golden Haze") , anthem = , song_type = Regional anthem , song = " Ia Ora 'O Tahiti Nui" , image_map = French Polynesia on the globe (French Polynesia centered).svg , map_alt = Location of Frenc ...
between 15:50 to 17:50 UTC with no reports of injuries . A wave 4 meters high is reported to have struck
Hiva Oa With its , Hiva Oa is the second largest island in the Marquesas Islands, in French Polynesia, an overseas territory of France in the Pacific Ocean. Located at 9 45' south latitude and 139 W longitude, it is the largest island of the southern Mar ...
in the
Marquesas Islands The Marquesas Islands (; french: Îles Marquises or ' or '; Marquesan: ' ( North Marquesan) and ' ( South Marquesan), both meaning "the land of men") are a group of volcanic islands in French Polynesia, an overseas collectivity of France in th ...
. The first waves were expected to hit the main island of
Tahiti Tahiti (; Tahitian ; ; previously also known as Otaheite) is the largest island of the Windward group of the Society Islands in French Polynesia. It is located in the central part of the Pacific Ocean and the nearest major landmass is Austr ...
at approximately 16:50 UTC (07:50 local). Cars and other automobiles were banned from roads closer than from the Pacific Ocean.
Réseau France Outre-mer The term réseau derives from a French word meaning "network". It may mean: *a network of fine lines on a glass plate, used in photographic telescopes to make a corresponding network on photographs of the stars: see Réseau plate *a system of weath ...
in
Papeete Papeete (Tahitian language, Tahitian: ''Papeete'', pronounced ) is the capital city of French Polynesia, an overseas collectivity of the France, French Republic in the Pacific Ocean. The Communes of France, commune of Papeete is located on the isl ...
reported that a wave measuring less than passed east of the
Gambier Islands The Gambier Islands ( or ) are an archipelago in French Polynesia, located at the southeast terminus of the Tuamotu archipelago. They cover an area of , and are made up of the Mangareva Islands, a group of high islands remnants of a caldera alo ...
with no damage, according to Monique Richeton, the mayor of
Rikitea Rikitea is a small town on Mangareva, which is part of the Gambier Islands in French Polynesia. A majority of the islanders live in Rikitea. The island was a protectorate of France in 1871 and was annexed in 1881. History The town's history date ...
. Residents of the
Tuamotus The Tuamotu Archipelago or the Tuamotu Islands (french: Îles Tuamotu, officially ) are a French Polynesian chain of just under 80 islands and atolls in the southern Pacific Ocean. They constitute the largest chain of atolls in the world, extendin ...
, which are low-lying, were told to move to the highest points on the island. ;American Samoa The first wave was expected to reach
American Samoa American Samoa ( sm, Amerika Sāmoa, ; also ' or ') is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the island country of Samoa. Its location is centered on . It is east of the International ...
, which is still recovering from the 2009 Samoa earthquake and tsunami, at 08:51 local time. Lieutenant Governor Ipulasi Aitofele Sunia urged residents not to rush to
A'oloau A'oloau is a village in the west of Tutuila Island, American Samoa. It is located inland, southwest of Pago Pago. It is also known as A’oloaufou, which means "new A’olou". An abandoned area in town by A'oloau Bay is known as A'oloautuai, whic ...
, a high elevation area on
Tutuila Tutuila is the main island of American Samoa (and its largest), and is part of the archipelago of Samoan Islands. It is the third largest island in the Samoan Islands chain of the Central Pacific. It is located roughly northeast of Brisbane, Au ...
, as it could cause traffic jams, putting safety at risk. Many coastal towns, including the main city of
Pago Pago Pago Pago ( ; Samoan: )Harris, Ann G. and Esther Tuttle (2004). ''Geology of National Parks''. Kendall Hunt. Page 604. . is the territorial capital of American Samoa. It is in Maoputasi County on Tutuila, which is American Samoa's main island. ...
, had already been heavily damaged in the 2009 tsunami. The first wave arrived on Pago Plaza at 21:58 UTC. ;Philippines The
Philippine Institute of Volcanology and Seismology The Philippine Institute of Volcanology and Seismology (PHIVOLCS, ; tl, Surian ng Pilipinas sa Bulkanolohiya at Sismolohiya) is a Philippine national institution dedicated to provide information on the activities of volcanoes, earthquakes, and ...
(Phivolcs) issued an advisory that tsunami wave(s) were expected to hit the eastern coast of the Philippines on Sunday between 05:00 and 06:30 UTC (13:00 and 14:30 local). Residents of 19 eastern provinces "are advised to prepare for possible evacuation." However, at 15:15 on 28 February 2010, all warnings were canceled. ;Hawaii
United States Senators The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States. The composition and powe ...
Daniel Inouye and
Daniel Akaka Daniel Kahikina Akaka (; September 11, 1924 – April 6, 2018) was an American educator and politician who served as a United States Senator from Hawaii from 1990 to 2013. A member of the Democratic Party, Akaka was the first U.S. Senator of Nat ...
issued a joint
press release A press release is an official statement delivered to members of the news media for the purpose of providing information, creating an official statement, or making an announcement directed for public release. Press releases are also considere ...
announcing the first tsunami evacuation in Hawaii since 1994. Warning sirens were sounded throughout the state, as hotels in
Waikiki Waikiki (; haw, Waikīkī; ; also known as Waikiki Beach) is a neighborhood of Honolulu on the south shore of the island of Oahu in the U.S. state of Hawaii. Waikiki is most famous for Waikiki Beach, which is one of six beaches in the district ...
evacuated tourists at 6 a.m. People in tall buildings were encouraged to move above the third floor. Waves measuring 2.7 metres high were originally predicted to strike
Hilo Bay Hilo Bay is a large bay located on the eastern coast of the island of Hawaii. Description The modern town of Hilo, Hawaii overlooks Hilo Bay, located at . North of the bay runs the Hamakua Coast on the slopes of Mauna Kea, and south of the bay ...
on the Big Island of Hawai'i at 11:05 local time (21:05 GMT), but by 11:18, major receding and waves had not been reported on the shoreline. By 11:40, several waves hit the islands amounting to raising and lowering of the sea near the coast, and a fourth wave hit around 13:12. The tsunami warning for Hawaii was canceled in the early afternoon on Saturday, 27 February. Gerard Fryer, a geophysicist for the Pacific Tsunami Warning Center was quoted as saying: "We expected the waves to be bigger in Hawaii, maybe about 50 percent bigger than they actually were." Early in the morning, the Center expected waves of 3 metres. In actuality, the highest tsunami waves ended up being about 1.5 to 1.8 metres peak to trough.


North America

;British Columbia At around 23:00 UTC (15:00 local), a tsunami warning was issued for coastal
British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...
. Extra precautions were already in place due to the
2010 Winter Olympics )'' , nations = 82 , athletes = 2,626 , events = 86 in 7 sports (15 disciplines) , opening = February 12, 2010 , closing = February 28, 2010 , opened_by = Governor General Michaëlle Jean , cauldron = Catriona Le May DoanNancy GreeneWayne Gretz ...
being held in
Vancouver Vancouver ( ) is a major city in western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the ...
at the time. ;California Small waves were expected in
Southern California Southern California (commonly shortened to SoCal) is a geographic and Cultural area, cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most po ...
, and receding was reported at
Long Beach Long Beach is a city in Los Angeles County, California. It is the 42nd-most populous city in the United States, with a population of 466,742 as of 2020. A charter city, Long Beach is the seventh-most populous city in California. Incorporate ...
. Minor damage was reported on some coastal areas. The tsunami damaged navigation buoys at Ventura. Additionally, a boat was torn loose from its mooring and minor erosion occurred within Ventura Harbor. Damage to docks and pilings in the area was moderate. ;Guerrero In
Guerrero Guerrero is one of the 32 states that comprise the 32 Federal Entities of Mexico. It is divided in 81 municipalities and its capital city is Chilpancingo and its largest city is Acapulcocopied from article, GuerreroAs of 2020, Guerrero the pop ...
, surges of between 30 cm and 1 meter and receding of up to 10 m were reported, and three small vessels were sunk at Tecpán de Galeana. The state tourism authorities announced they would be sending a letter to the CNN news network to protest the "alarming" way in which it had forecast a tsunami for the major tourist destination of
Acapulco Acapulco de Juárez (), commonly called Acapulco ( , also , nah, Acapolco), is a city and major seaport in the state of Guerrero on the Pacific Coast of Mexico, south of Mexico City. Acapulco is located on a deep, semicircular bay and has bee ...
.


Tsunami-related aid given

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
has sent construction teams to
Chiloé Island Chiloé Island ( es, Isla de Chiloé, , ) also known as Greater Island of Chiloé (''Isla Grande de Chiloé''), is the largest island of the Chiloé Archipelago off the west coast of Chile, in the Pacific Ocean. The island is located in southern ...
to help reconstruct some of the washed away coastal buildings. In July 2010, the government of Argentina released a statement that they would lend $300 million to Chile for reconstruction efforts using Argentine goods.


Data

The following data, published by the
Pacific Tsunami Warning Center The Pacific Tsunami Warning Center (PTWC) is one of two tsunami warning centers that are operated by NOAA in the United States. Headquartered on Ford Island, HI, the PTWC is part of an international tsunami warning system (TWS) program and s ...
and the
National Tsunami Warning Center The National Tsunami Warning Center (NTWC) forms part of an international tsunami warning system (TWS). It serves as the operations center for all coastal regions of Canada and the United States, except Hawaii, the Caribbean, and the Gulf of Mexic ...
, lists measured and reported values of the tsunami when it arrived at specific places. Some data is taken from the Chilean Army.


See also

* '' 03:34: Earthquake in Chile'' *
2010 Chile blackout The 2010 Chile blackout was an electric power outage that affected most of Chile on March 14, 2010. It began at 8:44 pm (23:44 GMT) on Sunday and continued into the next day. The power was restored in a few hours in some areas, and by midnight ...
*
2010 Haiti earthquake A disaster, catastrophic Moment magnitude scale, magnitude 7.0 Mw earthquake struck Haiti at 16:53 local time (21:53 UTC) on Tuesday, 12 January 2010. The epicenter was near the town of Léogâne, Ouest (department), Ouest department, a ...
* 2010 Pichilemu earthquake *
2011 Puyehue-Cordón Caulle eruption Eleven or 11 may refer to: *11 (number), the natural number following 10 and preceding 12 * one of the years 11 BC, AD 11, 1911, 2011, or any year ending in 11 Literature * ''Eleven'' (novel), a 2006 novel by British author David Llewellyn *'' ...
* ''
Aftershock In seismology, an aftershock is a smaller earthquake that follows a larger earthquake, in the same area of the main shock, caused as the displaced crust adjusts to the effects of the main shock. Large earthquakes can have hundreds to thousand ...
'' * List of 21st-century earthquakes *
List of earthquakes in 2010 Earthquakes in 2010 resulted in nearly 165,000 fatalities. Most of these were due to the 2010 Haiti earthquake, which caused an estimated 160,000 deaths, making it the 11th deadliest earthquake in recorded history. Other deadly quakes occurred i ...
*
List of earthquakes in Chile __NOTOC__ Chile lay in a region which is adjacent to the fast-moving Nazca Plate, and has high tectonic activity. The records for earlier centuries are apparently incomplete. Of the world's 46 known earthquakes with M ≥ 8.5 since the year 15 ...
*
Lists of earthquakes Earthquakes are caused by movements within the Earth's crust and uppermost mantle. They range from events too weak to be detectable except by sensitive instrumentation, to sudden and violent events lasting many minutes which have caused some of ...
* List of megathrust earthquakes * Seismicity of the Chilean coast * ''The Year of the Tiger''


Notes


References


External links


Maps of the Chile Earthquake
– ''The New York Times''
Tsunami Event – February 27, 2010 Chile
– NOAA Center for Tsunami Research
Chilean Earthquake Toll Passes 800; Aid Yet to Reach Many Devastated Areas
– ''Democracy Now!''
Tsunami Animation: Maule, Chile 2010 (Mercator)
Pacific Tsunami Warning Center The Pacific Tsunami Warning Center (PTWC) is one of two tsunami warning centers that are operated by NOAA in the United States. Headquartered on Ford Island, HI, the PTWC is part of an international tsunami warning system (TWS) program and s ...
* * {{DEFAULTSORT:Chile Earthquake 2010 Chile earthquake, 2010 tsunamis, Chile earthquake 2010 in French Polynesia History of Biobío Region, 2010 Chile earthquake History of Maule Region, 2010 Chile earthquake Tsunamis in Chile, 2010 Chile earthquake February 2010 events in South America History of Ñuble Region, 2010 Chile earthquake Presidency of Sebastián Piñera