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List Of Earthquakes In 1971
This is a list of earthquakes in 1971. Only magnitude 6.0 or greater earthquakes appear on the list. Lower magnitude events are included if they have caused death, injury or damage. Events which occurred in remote areas will be excluded from the list as they wouldn't have generated significant media interest. All dates are listed according to UTC time. Maximum intensities are indicated on the Mercalli intensity scale and are sourced from United States Geological Survey (USGS) Strong ground motion, ShakeMap data. Like the previous year, 1971 had heightened seismic activity. 20 earthquakes exceeded magnitude 7 with 2 of those measuring above magnitude 8. Both of the magnitude 8 events happened within a 12-day span in July in Territory of Papua and New Guinea, Papua New Guinea. A fairly robust aftershock sequence followed which contributed to the number of magnitude 7+ events. Chile, Russia and Indonesia had significant events during the year. The deadliest earthquake accounting for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1971 Solomon Islands Earthquakes
The 1971 Solomon Islands earthquakes occurred in the northern part of the Solomon Islands (archipelago), Solomon Islands, within Papua New Guinea as a doublet earthquake. The first large shock occurred on July 14 at 06:11 UTC with a magnitude of 8.0. The second large event occurred on July 26 at 01:23 UTC with a magnitude of 8.1. The initial event on July 14 caused a tsunami, which was observed in Rabaul. The earthquake of July 26 triggered a tsunami with a runup in New Britain. Shallow, large thrust earthquakes in the Solomon Islands tend to occur in multiplets. Examples of such earthquakes include the doublets occurred in 1971, 1974, and 1975. The 1971 doublet occurred at the junction of two trenches. The July 14 earthquake is located in the northwestern Solomon Islands Trench, while the July 26 earthquake ruptured the northeastern New Britain Trench. The July 14 earthquake and the July 26 earthquake were caused by the subduction of the Solomon Sea plate beneath the Pacific p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valparaíso Region
The Valparaíso Region (, ) is one of Chile's 16 Regions of Chile, first order administrative divisions.Valparaíso Region, 2006 With the country's second-highest population of 1,790,219 , and fourth-smallest area of , the region is Chile's second most densely populated after the Santiago Metropolitan Region to the southeast. The region also includes Chile's remote islands of the Pacific Ocean, including Rapa Nui and the Juan Fernandez Islands. Its capital is the port city of Valparaíso; other important cities include Viña del Mar, Quillota, San Felipe, Chile, San Felipe, Quilpué, Villa Alemana, and San Antonio, Chile, San Antonio. Administration As a region, Valparaíso is a first-level administrative division. Since 2021, the region is governed by the governor, who is elected by popular vote. The current governor is Rodrigo Mundaca (Broad Front (Chilean political coalition), Broad Front). Geography and natural features The region is on the same latitude as the Santiago ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Ireland, Papua New Guinea
New Ireland (Tok Pisin: ''Niu Ailan''), or Latangai, is a large island in Papua New Guinea, approximately in area with 120,000 people. It is named after the island of Ireland. It is the largest island of New Ireland Province, lying northeast of the island of New Britain. Both islands are part of the Bismarck Archipelago, named after Otto von Bismarck, and they are separated by Saint George's Channel. The administrative centre of the island and of New Ireland province is the town of Kavieng located at the northern end of the island. While the island was part of German New Guinea, it was named Neumecklenburg ("New Mecklenburg"). Geography The island is part of the Bismarck Archipelago and is often described as having the shape of a musket. New Ireland is surrounded by the Bismarck Sea in the southwest and by the Pacific Ocean in the northeast. For much of its in length, the island's width varies between less than to , yet the central mountainous spine is very steep and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magadan Oblast
Magadan Oblast is a federal subjects of Russia, federal subject (an oblast) of Russia. It is geographically located in the Russian Far East, Far East region of the country, and is administratively part of the Far Eastern Federal District. Magadan Oblast has a population of 136,085 (Russian Census (2021), 2021 Census), making it the least populated oblast and the third-least populated federal subject in Russia. Magadan is the largest types of inhabited localities in Russia, city and the administrative center, capital of Magadan Oblast with the majority of the oblast's inhabitants living in the city itself. The coastline has a less severe climate than the interiors, although both are very cold for its latitude. It borders Chukotka Autonomous Okrug in the north, Kamchatka Krai in the east, Khabarovsk Krai in the south and the Sakha Republic in the west. The economy is primarily based on mining, particularly gold, silver and other non-ferrous metals. History Magadan Oblast was estab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Shetland Islands
The South Shetland Islands are a group of List of Antarctic and subantarctic islands, Antarctic islands located in the Drake Passage with a total area of . They lie about north of the Antarctic Peninsula, and between southwest of the nearest point of the South Orkney Islands. By the Antarctic Treaty System, Antarctic Treaty of 1959, the islands' sovereignty is neither recognized nor disputed by the signatories. According to British government language on the topic, "the whole of Antarctica is protected in the interests of peace and science." The islands have been claimed by three countries, beginning with the United Kingdom since 1908 (since 1962 as part of the equally unrecognized British Antarctic Territory). The islands are also claimed by the governments of Chile (since 1940, as part of the Antártica Chilena province), and by Argentina (since 1943, as part of Argentine Antarctica, Tierra del Fuego Province, Argentina, Tierra del Fuego Province). Several countries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andreanof Islands
The Andreanof Islands (, ) are a group of islands in the Aleutian Islands in southwestern Alaska, United States. They are located at about 52° North and 172°57' to 179°09' West. Geography The Andreanof Islands are located between Amchitka Pass and the Rat Islands group to the west, and Amukta Pass and the Islands of Four Mountains group to the east. The islands extend about 275 miles (440 km). The total land area of all islands (including the Delarof Islands) is 1,515.349 sq mi (3,924.737 km2). The total population was 412 persons as of the 2000 census, the vast majority in the city of Adak on Adak Island. Islands The Delarof Islands are a subgroup of the Andreanof Islands group as well as the westernmost islands in the group. The largest islands in the group are, from west to east, Gareloi Island, Tanaga Island, Kanaga, Adak Island, Kagalaska Island, Great Sitkin Island, Atka Island, Amlia, and Seguam Island. The islands are usually foggy and treele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sumatra
Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi.2), including adjacent islands such as the Simeulue Island, Simeulue, Nias Island, Nias, Mentawai Islands, Mentawai, Enggano Island, Enggano, Riau Islands, Bangka Belitung and Krakatoa archipelago. Sumatra is an elongated landmass spanning a diagonal northwest–southeast axis. The Indian Ocean borders the northwest, west, and southwest coasts of Sumatra, with the island chain of Simeulue, Nias, Mentawai Islands, Mentawai, and Enggano off the western coast. In the northeast, the narrow Strait of Malacca separates the island from the Malay Peninsula, which is an extension of the Eurasian continent. In the southeast, the narrow Sunda Strait, containing the Krakatoa archipelago, separates Sumatra from Java. The northern tip of Sumatra is near ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Solomon Islands
The British Solomon Islands Protectorate was first established in June 1893, when Captain Herbert Gibson of declared the southern Solomon Islands a British protectorate.''Commonwealth and Colonial Law'' by Kenneth Roberts-Wray, London, Stevens, 1966. P. 897 Christian missionaries began visiting the Solomons from the 1840s, beginning with an attempt by French Catholics under Jean-Baptiste Epalle to establish a mission on Santa Isabel Island, which was abandoned after Epalle was killed by islanders in 1845. Anglican missionaries began arriving from the 1850s, followed by other denominations, over time gaining a large number of converts. The Anglo-German Declarations about the Western Pacific Ocean (1886), established "spheres of influence" that Imperial Germany and the United Kingdom agreed, with Germany giving up its claim to the southern Solomon Islands. Following the formal declaration of the Protectorate in 1893, Bellona and Rennell Islands and Sikaiana (formerly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Cruz Islands
The Santa Cruz Islands form an archipelago in Temotu Province, Solomon Islands. They lie approximately to the southeast of the Solomon Islands (archipelago), Solomon Islands archipelago, just north of the archipelago of Vanuatu and are considered part of the Vanuatu rain forests ecoregion. The term Santa Cruz Islands is sometimes used to encompass all the islands of Temotu Province, Solomon Islands. Geography The largest island is Nendo Island, Nendö, which is also known as Santa Cruz Island proper. Lata, Solomon Islands, Lata, located on Nendö, is the largest town, and is the capital of Temotu Province. Other islands belonging to the Santa Cruz group are Vanikoro (which is actually made up of two islands, Banie (island), Banie and its small neighbour Teanu (island), Teanu) and Utupua. The table below provides basic data on these three islands. The Santa Cruz Islands are less than five million years old and were pushed upward by the Plate tectonics, tectonic subduction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hokkaido
is the list of islands of Japan by area, second-largest island of Japan and comprises the largest and northernmost prefectures of Japan, prefecture, making up its own list of regions of Japan, region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by railway via the Seikan Tunnel. The largest city on Hokkaido is its capital, Sapporo, which is also its only cities designated by government ordinance of Japan, ordinance-designated city. Sakhalin lies about to the north of Hokkaidō, and to the east and northeast are the Kuril Islands, which are administered by Russia, though the four most southerly are Kuril Islands dispute, claimed by Japan. The position of the island on the northern end of the archipelago results in a colder climate, with the island seeing significant snowfall each winter. Despite the harsher climate, it serves as an agricultural breadbasket for many crops. Hokkaido was formerly known as ''Ezo'', ''Yezo'', ''Yeso'', or ''Yes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-Atlantic Ridge
The Mid-Atlantic Ridge is a mid-ocean ridge (a Divergent boundary, divergent or constructive Plate tectonics, plate boundary) located along the floor of the Atlantic Ocean, and part of the List of longest mountain chains on Earth, longest mountain range in the world. In the North Atlantic, the ridge separates the North American plate, North American from the Eurasian plate and the African plate, north and south of the Azores triple junction. In the South Atlantic, it separates the African plate, African and South American plate, South American plates. The ridge extends from a junction with the Gakkel Ridge (Mid-Arctic Ridge) northeast of Greenland southward to the Bouvet triple junction in the South Atlantic. Although the Mid-Atlantic Ridge is mostly an underwater feature, portions of it have enough elevation to extend above sea level, for example in Iceland. The ridge has an average spreading rate of about per year. Discovery A ridge under the northern Atlantic Ocean was first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sakhalin Island
Sakhalin ( rus, Сахали́н, p=səxɐˈlʲin) is an island in Northeast Asia. Its north coast lies off the southeastern coast of Khabarovsk Krai in Russia, while its southern tip lies north of the Japanese island of Hokkaido. An island of the West Pacific, Sakhalin divides the Sea of Okhotsk to its east from the Sea of Japan to its southwest. It is administered as part of Sakhalin Oblast and is the largest island of Russia, with an area of . The island has a population of roughly 500,000, the majority of whom are Russians. The indigenous peoples of the island are the Ainu, Oroks, and Nivkhs, who are now present in very small numbers. The island's name is derived from the Manchu word ''Sahaliyan'' (), which was the name of the Qing dynasty city of Aigun. The Ainu people of Sakhalin paid tribute to the Yuan, Ming, and Qing dynasties and accepted official appointments from them. Sometimes the relationship was forced but control from dynasties in China was loose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
