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2021 Loyalty Islands Earthquake
The 2021 Loyalty Islands earthquake was a 7.7 magnitude earthquake that struck offshore between Vanuatu and New Caledonia on February 11, 2021 at 00:19 local time. It is the 4th largest earthquake of 2021. Tectonic setting Located about 415 km to the east of the island of New Caledonia in the southwest Pacific Ocean occurred as the result of low angle thrust faulting on or near the plate boundary interface between the Indo-Australian and Pacific plates. Focal mechanism solutions indicate the earthquake occurred on either a shallow fault striking west and dipping to the north, or on a steep fault striking east. The earthquake was preceded by two foreshocks of M 6.1 and M 6.0 in the hour before the earthquake. At the location of this earthquake, the Indo-Australian plate moves towards the east-northeast with respect to the Pacific at a rate of approximately 75 mm/yr. At the South New Hebrides Trench, Australia lithosphere converges with and sinks beneath the Pacific pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lenakel
Lenakel is the largest town on the island of Tanna in Vanuatu. It has a population of 1,473. It is located on the west coast of the island near the administrative capital of Isangel and serves as a major port of entry. Language It is the center of the Lenakel language, one of the five Tanna languages native to the island; Vanuatu's official tongue, the English creole Bislama Bislama (; ; also known by its earlier French name, ) is an English-based creole language and one of the official languages of Vanuatu. It is the first language of many of the "Urban ni-Vanuatu" (citizens who live in Port Vila and Luganville) ... is spoken as well. References Populated places in Vanuatu Tafea Province {{Vanuatu-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Hebrides Plate
The New Hebrides Plate, sometimes called the Neo-Hebridean Plate, is a minor tectonic plate located in the Pacific Ocean, near the island country of Vanuatu. The plate is bounded on the southwest by the Indo-Australian Plate which is subducting below it. The New Hebrides Trench is seismically active, producing See also * List of earthquakes in Vanuatu Earthquakes in Vanuatu are frequent and are sometimes accompanied by tsunami, though these events are not often destructive. The archipelago, which was formerly known as New Hebrides, lies atop a complex and active plate boundary in the southwester ... References Citations * {{DEFAULTSORT:New Hebrides Plate Tectonic plates Geology of the Pacific Ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 Earthquakes
{{Infobox earthquakes in year, year=2021, 9.0+=0, 4.0–4.9=14,643, 5.0–5.9=2,046, 6.0–6.9=141, 7.0–7.9=16, 8.0–8.9=3, strongest=8.2 {{M, w, link=y {{flagicon, United StatesUnited States, deadliest={{nowrap, 7.2 Mw {{flagicon, Haiti Haiti 2,248 deaths, location_map=Earth, fatalities=2,478, location_map_places= {{Location map~, Earth, mark = Green pog.svg, lat_deg = 28.232, lon_deg = 104.189 {{Location map~, Earth, mark = Green pog.svg, lat_deg = -2.757, lon_deg = 122.240 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 45.431, lon_deg = 16.244 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 40.116, lon_deg = 33.275 {{Location map~, Earth, mark = Green pog.svg, lat_deg = -2.981, lon_deg = 118.894 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 26.926, lon_deg = 55.186 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 26.926, lon_deg = 55.186 {{Location map~, Earth, mark = Green pog.svg, lat_deg = 37.176, lon_deg = -3.744 {{Location map~, Earth, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agence France-Presse
Agence France-Presse (AFP) is a French international news agency headquartered in Paris, France. Founded in 1835 as Havas, it is the world's oldest news agency. AFP has regional headquarters in Nicosia, Montevideo, Hong Kong and Washington, D.C., and news bureaus in 151 countries in 201 locations. AFP transmits stories, videos, photos and graphics in French, English, Arabic, Portuguese, Spanish, and German. History Agence France-Presse has its origins in the Agence Havas, founded in 1835 in Paris by Charles-Louis Havas, making it the world's oldest news service. The agency pioneered the collection and dissemination of news as a commodity, and had established itself as a fully global concern by the late 19th century. Two Havas employees, Paul Julius Reuter and Bernhard Wolff, set up their own news agencies in London and Berlin respectively. In 1940, when German forces occupied France during World War II, the news agency was taken over by the authorities and renamed "Office fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 of an archipelago of more than 330 islands—of which about 110 are permanently inhabited—and more than 500 islets, amounting to a total land area of about . The most outlying island group is Ono-i-Lau. About 87% of the total population of live on the two major islands, Viti Levu and Vanua Levu. About three-quarters of Fijians live on Viti Levu's coasts: either in the capital city of Suva; or in smaller urban centres such as Nadi—where tourism is the major local industry; or in Lautoka, where the Sugarcane, sugar-cane industry is dominant. The interior of Viti Levu is sparsely inhabited because of its terrain. The majority of Fiji's islands were formed by Volcano, volcanic activity starting around 150 million years ago. Some geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Tsunami Warning Centre
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 serves as the operational center for TWS of the Pacific issuing bulletins and warnings to participating members and other nations in the Pacific Ocean area of responsibility. It is also the regional (local) warning center for the State of Hawaii. The other tsunami warning center is the National Tsunami Warning Center (NTWC) in Palmer, Alaska, serving all coastal regions of Canada and the United States except Hawaii, the Caribbean Sea and the Gulf of Mexico. The PTWC was established in 1949, following the 1946 Aleutian Island earthquake and a tsunami that resulted in 165 casualties in Hawaii and Alaska. The PTWC uses seismic data as its starting point, but then takes into account oceanographic data when calculating possible threats. Tide gau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsunami Earthquake
In seismology, a tsunami earthquake is an earthquake which triggers a tsunami of significantly greater magnitude, as measured by shorter-period seismic waves. The term was introduced by Japanese seismologist Hiroo Kanamori in 1972. Such events are a result of relatively slow rupture velocities. They are particularly dangerous as a large tsunami may arrive at a coastline with little or no warning. Characteristics The distinguishing feature for a tsunami earthquake is that the release of seismic energy occurs at long periods (low frequencies) relative to typical tsunamigenic earthquakes. Earthquakes of this type do not generally show the peaks of seismic wave activity associated with ordinary events. A tsunami earthquake can be defined as an undersea earthquake for which the surface wave magnitude Ms differs markedly from the moment magnitude Mw, because the former is calculated from surface waves with a period of about 20 seconds, whereas the latter is a measure of the total ene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outer Trench Swell
The outer trench swell, outer trench high, or outer rise is a subtle ridge on the seafloor near an oceanic trench, where a descending plate begins to flex and fault in preparation for its descent into the mantle at a subduction zone. The lithosphere is bent upwards by plate stresses, and is not in isostatic equilibrium (distinguish from the "outer ridge" of a forearc). Characteristics Typically, the gravity In physics, gravity () is a fundamental interaction which causes mutual attraction between all things with mass or energy. Gravity is, by far, the weakest of the four fundamental interactions, approximately 1038 times weaker than the stro ... field over the outer swell is about 50 mGal (0.5 mm/s²) higher than expected from isostasy, while gravity over the oceanic trench, trench is about 200 mGal (2 mm/s²) less than that expected from isostatic considerations. The bending of the plate is associated with tension in the upper 20 km, and shallow earthqua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiroo Kanamori
is a Japanese seismologist who has made fundamental contributions to understanding the physics of earthquakes and the tectonic processes that cause them. Career Kanamori and American seismologist Thomas C. Hanks developed the moment magnitude scale which replaced the Richter magnitude scale as a measurement of the relative strength of earthquakes. Kanamori invented the method for calculating slip distribution on the fault plane by teleseismic waveform with Masayuki Kikuchi. In addition, they studied realtime seismology. In 2007 he was awarded the Kyoto Prize in Basic Sciences. Kanamori developed a new method of earthquake early warning detection by rapid analysis of the P-wave by a robust network. The algorithm is currently being tested with the Southern California Seismic Network "ShakeAlert" Earthquake Early Warning (EEW) system, and is one of three algorithms that is used by the system. Honours *1993 Arthur L. Day Prize and Lectureship *1994 Asahi Prize *1996 Walter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thorne Lay
Thorne Lay (born 1956) is an American seismologist. He was born in Casper, Wyoming in 1956, and raised in El Paso, Texas. He is a professor of earth and planetary sciences at the University of California, Santa Cruz. Education Lay received a B.S. from the University of Rochester in 1978, a M.S. from the California Institute of Technology The California Institute of Technology (branded as Caltech or CIT)The university itself only spells its short form as "Caltech"; the institution considers other spellings such a"Cal Tech" and "CalTech" incorrect. The institute is also occasional ... in 1980, and a Ph.D. also from California Institute of Technology, in 1983. Awards and academic honors * USTC Distinguished Lecture Series in Earth and Space Sciences, 2015 * IRIS/SSA Distinguished Lecturer, 2015 * Star on the Mountain Award, City of El Paso, Texas, 2015 * Fessinger-Springer Memorial Lecture, University of Texas El Paso, 2015 * Honorary Professor, Xi'an Jiaotong Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
