UTC time | Doublet earthquake: |
---|---|
A: 1949-12-17 06:53:32 | |
B: 1949-12-17 15:07:57 | |
ISC event | |
A: 897093 | |
B: 897095 | |
USGS-ANSS | |
A: ComCat | |
B: ComCat | |
Local date | December 17, 1949 |
Local time | |
A: 03:53 (UTC−03:00) | |
B: 12:07 (UTC−03:00) | |
Magnitude | Doublet earthquake: |
A: 7.7 Mw (ISC-GEM) | |
B: 7.6 Mw (OSC-GEM) | |
Epicenter | 53°58′S69°34′W / 53.97°S 69.56°W Coordinates: 53°58′S69°34′W / 53.97°S 69.56°W |
Max. intensity | VIII (Severe) [1] |
The 1949 Tierra del Fuego earthquakes occurred slightly more than eight hours apart on 17 December. Their epicenters were located in the east of the Chilean Tierra del Fuego Province, close to the Argentine border on the island of Tierra del Fuego.
The two shocks measured 7.7 and 7.6 on the moment magnitude scale and were the most powerful ever recorded in the south of Argentina and one of the most powerful in austral Chile. They were felt with intensities as high as VIII (Severe) on the Mercalli intensity scale, and affected the settlements of Punta Arenas and Río Gallegos.
Tierra del Fuego is an archipelago off the southernmost tip of the South American mainland, across the Strait of Magellan. The archipelago consists of the main island, Isla Grande de Tierra del Fuego, with an area of 48,100 km2 (18,572 sq mi), and a group of many islands, including Cape Horn and Diego Ramírez Islands. Tierra del Fuego is divided between Chile and Argentina, with the latter controlling the eastern half of the main island and the former the western half plus the islands south of Beagle Channel and the southernmost islands. The southernmost extent of the archipelago is just north of latitude 56°S.
The Strait of Magellan, also called the Straits of Magellan, is a navigable sea route in southern Chile separating mainland South America to the north and Tierra del Fuego to the south. The strait is considered the most important natural passage between the Atlantic and Pacific oceans. It was discovered and first traversed by Europeans by the Spanish expedition of Portuguese explorer Ferdinand Magellan in 1520, after whom it is named. Prior to this, the strait had been navigated by canoe-faring indigenous peoples including the Kawésqar.
Ushuaia is the capital of Tierra del Fuego, Antártida e Islas del Atlántico Sur Province, Argentina, and the southernmost city of the country. With a population of nearly 75,000 and a location below the 54th parallel south latitude, Ushuaia claims the title of world's southernmost city. A much smaller municipality of less than 3,000 people, Puerto Williams in Chile, is nearer to the 55th parallel south, at a latitude of 54°56' S compared to Ushuaia at 54°48' S.
Tierra del Fuego, officially the Province of Tierra del Fuego, Antarctica and South Atlantic Islands, is the southernmost, smallest, and least populous Argentine province.
Isla Grande de Tierra del Fuego also formerly Isla de Xátiva is an island near the southern tip of South America from which it is separated by the Strait of Magellan. The western portion (61.4%) of the island is in Chile, while the eastern portion is in Argentina. It forms the major landmass in an extended group of islands or archipelago also known as Tierra del Fuego.
Father Alberto Maria de Agostini born in Pollone, Piedmont was an Italian missionary of the Salesians of Don Bosco order as well as a passionate mountaineer, explorer, geographer, ethnographer, photographer and cinematographer.
Beagle Channel is a strait in the Tierra del Fuego Archipelago, on the extreme southern tip of South America between Chile and Argentina. The channel separates the larger main island of Isla Grande de Tierra del Fuego from various smaller islands including the islands of Picton, Lennox and Nueva; Navarino; Hoste; Londonderry; and Stewart. The channel's eastern area forms part of the border between Chile and Argentina and the western area is entirely within Chile.
Julius Popper, also known in Spanish as Julio Popper, was a Wallachian-born Romanian-Argentine engineer, adventurer, and explorer. Popper was one of the perpetrators of the genocide against the native Selk'nam people.
Nothofagus pumilio, the lenga beech, is a deciduous tree or shrub in the Nothofagaceae family that is native to the southern Andes range, in the temperate forests of Chile and Argentina to Tierra del Fuego, from 35° to 56° South latitude. This tree is in the same genus as the coihue. It regenerates easily after fires. The wood is of good quality, moderate durability, and is easy to work with. It is used in furniture, shingles and construction and sometimes as a substitute for American black cherry in the manufacturing of cabinets.
Tierra del Fuego Province is one of four provinces in the southern Chilean region of Magallanes and Antártica Chilena (XII). It includes the Chilean or western part of the main island of Tierra del Fuego, except for the part south of the Cordillera Darwin, which is in Antártica Chilena Province.
The 1894 San Juan earthquake took place in the province of San Juan, Argentina, on 27 October 1894, at about 07:30 PM. It was the most powerful earthquake recorded in Argentina, with magnitude 7.5 on the surface wave magnitude scale. Its epicenter was located to the northwest of San Juan, approximately at 29°48′S69°00′W, and at a depth of 30 km.
Nothofagus betuloides, Magellan's beech or guindo, is a tree native to southern Patagonia.
The Patagonian chinchilla mouse is a species of rodent in the family Cricetidae. It was first described by George Robert Waterhouse in 1839. It is found in Tierra del Fuego and neighboring areas of southernmost Argentina and Chile.
The 1985 Rapel Lake earthquake occurred on 8 April at 21:56:59 local time with a moment magnitude of 7.5 and a maximum perceived intensity of VI (Strong). The shock was centered 75 kilometres (47 mi) southwest of Santiago, Chile, with a focal depth of 37.8 km (23 mi).
Tierra del Fuego National Park is a national park on the Argentine part of the island of Tierra del Fuego, within Tierra del Fuego Province in the ecoregion of Patagonic Forest and Altos Andes, a part of the subantarctic forest. Established on 15 October 1960 under the Law 15.554 and expanded in 1966, it was the first shoreline national park to be established in Argentina.
Between 1883 and 1906 Tierra del Fuego experienced a gold rush attracting many Chileans, Argentines and Europeans to the archipelago, including many Dalmatians. The gold rush led to the formation of the first towns in the archipelago and fueled economic growth in Punta Arenas. After the gold rush was over, most gold miners left the archipelago, while the remaining settlers engaged in sheep farming and fishing. Indigenous Selk'nam populations declined sharply during the rush.
Tetroncium is a genus of plants in the Juncaginaceae described as a genus in 1808. It contains only one known species, Tetroncium magellanicum, known from a few sub-Antarctic islands: Tierra Del Fuego, Falkland Islands, and Gough Island. The plant got the name magellanicum because the original description was describing the sample found near the Strait of Magellan.
The following lists events that happened during 1949 in Chile.
Raúl del Valle was a Chilean film and theatre actor who performed for most of his career in Argentina.