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1998 Bahía De Caráquez Earthquake
The 1998 Bahía de Caráquez earthquake occurred on August 4 at 13:59 local time (18:59 UTC) with a magnitude 7.2. The epicenter was located at 10 km north of Bahía de Caráquez, about 190 km NNW of Guayaquil, and about 215 km W of Quito, Ecuador. In Bahía de Caráquez, electricity, telephone, and water services disrupted, and many buildings were damaged. It was felt strongly in Guayaquil and Quito and could be felt in much of Ecuador and in Cali, Colombia. An 5.4 foreshock occurred 1 hour and 24 minutes before the main shock and hence alerted many people. The Nazca plate is subducting beneath the South American plate near the Ecuadorian coast. This earthquake was a shallow thrust earthquake in this subduction zone. Since March 1997, Wawa Pichincha, 12 km to the west of Quito, began a period of unrest. Since May 1998, a seismic swarm occurred at Wawa Pichincha. Three days after the Bahía de Caráquez earthquake, on August 7, 1998, a moderate phreatic erup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bahía De Caráquez
Bahía de Caráquez, officially known as San Antonio de Caraquez and founded under the name of Villa de San Antonio de la Bahía de Caráquez or simply known today as Bahía, formerly called Bahía de los Caras during the period of the Spanish conquest, is a coastal city belonging to the Sucre county, in the Ecuadorian province of Manabí. The city is located on a sandy peninsula on the country's western coast at the mouth of the Río Chone and has considerable tourism infrastructure that positions it as the main regional town. It has seen significant development during the last 15 to 20 years, particularly because it has become a vacation destination for people from Quito and Guayaquil. The city is located one hour north of the city of Manta and in the pre-Columbian era was host to the ancient Indian city of Caran. Across the bay is the town of San Vicente. Bahía became an Ecocity on February 23, 1999, due to the devastation caused by two natural disasters in 1997 and 1998. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guayaquil
Guayaquil (), officially Santiago de Guayaquil, is the largest city in Ecuador and also the nation's economic capital and main port. The city is the capital (political), capital of Guayas Province and the seat of Guayaquil Canton. The city is located on the west bank of the Guayas River, which flows into the Pacific Ocean at the Gulf of Guayaquil. With a population of 2,746,403 inhabitants, it is the most populous city in the country, and the fifth largest in the Andean Community. However, its urban fabric extends beyond its official urban parishes, encompassing nearby cities and parishes; thus, the Guayaquil metropolitan area reaches a population of 3,618,450, making it the most populous urban agglomeration in the nation, and also the fifth in the Andean Community. As the largest city, it is one of the two main development poles of the country—alongside Quito, the national capital—hosting Ecuador’s main business, financial, cultural, and sports institutions. After seve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quito
Quito (; ), officially San Francisco de Quito, is the capital city, capital and second-largest city of Ecuador, with an estimated population of 2.8 million in its metropolitan area. It is also the capital of the province of Pichincha Province, Pichincha. Quito is in a valley on the eastern slopes of Pichincha (volcano), Pichincha, an active stratovolcano in the Andes. Quito's elevation of makes it either the List of capital cities by altitude, highest or the second highest national capital city in the world. This varied standing is because Bolivia is a List of countries with multiple capitals, country with multiple capitals; if La Paz is considered the Bolivian national capital, it tops the list of highest capitals, but if Sucre is specified as the capital, then it is the second highest, behind Quito. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecuador
Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contains the Galapagos Islands in the Pacific, about west of the mainland. The country's Capital city, capital is Quito and its largest city is Guayaquil. The land that comprises modern-day Ecuador was once home to several groups of Indigenous peoples in Ecuador, indigenous peoples that were gradually incorporated into the Inca Empire during the 15th century. The territory was Spanish colonization of the Americas, colonized by the Spanish Empire during the 16th century, achieving independence in 1820 as part of Gran Colombia, from which it emerged as a sovereign state in 1830. The legacy of both empires is reflected in Ecuador's ethnically diverse population, with most of its million people being mestizos, followed by large minorities of Europe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cali
Santiago de Cali (), or Cali, is the capital of the Valle del Cauca department, and the most populous city in southwest Colombia, with 2,280,522 residents estimate by National Administrative Department of Statistics, DANE in 2023. The city spans with of urban area, making Cali the second-largest city in the country by area and the List of cities and towns in Colombia, third most populous. As the only major Colombian city with access to the Pacific Coast, Cali is the main urban and economic center in the south of the country, and has one of Colombia's fastest-growing economies. The city was founded on 25 July 1536 by the Spanish explorer Sebastián de Belalcázar. As a sporting center for Colombia, it was the host city for the 1971 Pan American Games. Cali also hosted the 1992 World Wrestling Championships, the World Games 2013, 2013 edition of the World Games, the UCI Track Cycling World Championships in 2014, the IAAF World Youth Championships in Athletics, World Youth Champi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombia
Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuela to the east and northeast, Brazil to the southeast, Peru and Ecuador to the south and southwest, the Pacific Ocean to the west, and Panama to the northwest. Colombia is divided into 32 Departments of Colombia, departments. The Capital District of Bogotá is also the List of cities in Colombia by population, country's largest city hosting the main financial and cultural hub. Other major urban areas include Medellín, Cali, Barranquilla, Cartagena, Colombia, Cartagena, Santa Marta, Cúcuta, Ibagué, Villavicencio and Bucaramanga. It covers an area of 1,141,748 square kilometers (440,831 sq mi) and has a population of around 52 million. Its rich cultural heritage—including language, religion, cuisine, and art—reflects its history as a co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreshock
A foreshock is an earthquake that occurs before a larger seismic eventthe mainshockand is related to it in both time and space. The designation of an earthquake as ''foreshock'', ''mainshock'' or aftershock is only possible after the full sequence of events has happened. Occurrence Foreshock activity has been detected for about 40% of all moderate to large earthquakes, and about 70% for events of M>7.0. They occur from a matter of minutes to days or even longer before the main shock; for example, the 2002 Sumatra earthquake is regarded as a foreshock of the 2004 Indian Ocean earthquake with a delay of more than two years between the two events. Some great earthquakes (M>8.0) show no foreshock activity at all, such as the M8.6 1950 Assam–Tibet earthquake, 1950 India–China earthquake. The increase in foreshock activity is difficult to quantify for individual earthquakes but becomes apparent when combining the results of many different events. From such combined observations, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nazca Plate
The Nazca plate or Nasca plate, named after the Nazca region of southern Peru, is an oceanic list of tectonic plates, tectonic plate in the eastern Pacific Ocean basin off the west coast of South America. The ongoing subduction, along the Peru–Chile Trench, of the Nazca plate under the South American plate is largely responsible for the Andes, Andean orogeny. The Nazca plate is bounded on the west by the Pacific plate and to the south by the Antarctic plate through the East Pacific Rise and the Chile Rise, respectively. The movement of the Nazca plate over several Hotspot (geology), hotspots has created some volcanic islands as well as east–west running seamount chains that subduct under South America. Nazca is a relatively young plate in terms of the age of its rocks and its existence as an independent plate, having been formed from the breakup of the Farallon plate about 23 million years ago. The oldest rocks of the plate are about 50 million years old. Boundaries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South American Plate
The South American plate is a major tectonic plate which includes the continent of South America as well as a sizable region of the Atlantic Ocean seabed extending eastward to the African plate, with which it forms the southern part of the Mid-Atlantic Ridge. The easterly edge is a divergent boundary with the African plate; the southerly edge is a complex boundary with the Antarctic plate, the Scotia plate, and the Sandwich Plate; the westerly edge is a convergent boundary with the subducting Nazca plate; and the northerly edge is a boundary with the Caribbean plate and the oceanic crust of the North American plate. At the Chile triple junction, near the west coast of the Taitao– Tres Montes Peninsula, an oceanic ridge known as the Chile Rise is actively subducting under the South American plate. Geological research suggests that the South American plate is moving west away from the Mid-Atlantic Ridge: "Parts of the plate boundaries consisting of alternations of re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pichincha Volcano
Pichincha is a stratovolcano in Ecuador. The capital Quito wraps around its eastern slopes. The two highest peaks of the mountain are Wawa Pichincha ( Kichwa ''wawa'' child, baby / small, Spanish spelling ''Guagua Pichincha'') () and Ruku Pichincha (Kichwa ''ruku'' old person, Spanish ''Rucu Pichincha'') (). The active caldera is in Wawa Pichincha on the western side of the mountain. Description Both peaks are visible from the city of Quito and both are popular acclimatization climbs. Wawa Pichincha is usually accessed from the village of Lloa outside of Quito. Ruku is typically accessed from the TelefériQo on the western side of Quito. In October 1999, the volcano erupted and covered the city with several inches of ash. Before that, the last major eruptions were in 1553 and in 1660, when about of ash fell on the city. The province in which it is located was named for the mountain. This is also the case for many of the other provinces in Ecuador (including Cotopaxi, Chimbor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phreatic Eruption
A phreatic eruption, also called a phreatic explosion, ultravulcanian eruption or steam-blast eruption, occurs when magma heats ground water or surface water. The extreme temperature of the magma (anywhere from ) causes near-instantaneous evaporation of water to steam, resulting in an explosion of steam, water, ash, rock, and volcanic bombs. At Mount St. Helens in Washington state, hundreds of steam explosions preceded the 1980 Plinian eruption of the volcano. A less intense geothermal event may result in a mud volcano. Phreatic eruptions typically include steam and rock fragments; the inclusion of liquid lava is unusual. The temperature of the fragments can range from cold to incandescent. If molten magma is included, volcanologists classify the event as a phreatomagmatic eruption. These eruptions occasionally create broad, low-relief craters called '' maars''. Phreatic explosions can be accompanied by carbon dioxide or hydrogen sulfide gas-emissions. Carbon diox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In Ecuador
This list of earthquakes in Ecuador is a list of notable earthquakes that have affected Ecuador in recorded history. Tectonic setting The active tectonics of Ecuador is dominated by the effects of the subduction of the Nazca plate beneath the South American plate. Ecuador lies within the Northern Volcanic Zone where the subduction zone is moving at a rate of 7 cm/yr to the east-northeast, significantly oblique to the trend of this segment of the Andes. The subduction zone has an overall dip of 25–30°, but varies rapidly along strike due to the effects of subduction of the Carnegie Ridge. The Carnegie Ridge is an oceanic plateau that formed as the Nazca plate passed over the Galapagos hotspot. The plate interface above the subducted part of the ridge has a shallower dip than the area to both north and south, the boundaries interpreted to consist of two large tears in the downgoing Nazca plate. The northern part of Ecuador overlies the subducted part of the Carnegie Ridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
