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The 1960 Valdivia earthquake and tsunami (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) occurred on 22 May 1960. Most studies have placed it at 9.4–9.6 on the moment magnitude scale , [ 1 ] while some studies have placed the magnitude lower than 9.4.
Off the coast of Chile, the Nazca Plate subducts beneath the South American Plate along the Peru–Chile or Atacama Megathrust, producing large earthquakes including the 1960 Chilean earthquake which had a magnitude of 9.5–9.6 on the moment magnitude scale. [4] In some cases, intraslab earthquakes occur.
22 May – occurs the 1960 Valdivia earthquake With a magnitude of 9.5 MW, it is the largest recorded in the history of mankind Its epicenter was the city of Valdivia and mainly affected the area between Talca and Chiloé Archipelago The earthquake was felt in different parts of the planet and produced both a tidal wave —which affected various locations throughout the Pacific Ocean such as ...
The 1939 Chillán earthquake occurred in south-central Chile on 24 January with a surface-wave magnitude of 8.3 [1] and a maximum Mercalli intensity of X (Extreme).With a death toll of around 28,000, [4] compared to the 2,231–6,000 (official estimates vary greatly) [5] [6] of the Great Chilean earthquake of 1960, it is the single deadliest earthquake in Chile.
The earthquake was likely a result of thrust-faulting, caused by the subduction of the Nazca plate beneath the South American plate. [5] The coasts of Peru and Chile have a history of great megathrust earthquakes originating from this plate boundary, such as the 1960 Valdivia earthquake and the 2010 Chile earthquake.
A magnitude 6.2 earthquake struck off the northern coast of Chile on Friday, the U.S. Geological Survey said, although there were no initial reports of damage.
The U.S. Geological Survey said the earthquake struck at 9:33 a.m. local time (12:33 p.m. GMT), and its epicenter was 42 kilometers (26 miles) southwest of Huasco, a city in Chile’s Atacama region.
Under advice from the Pacific Tsunami Warning Center, tsunami warnings were issued for the Latin American Pacific coastlines of Chile, Peru, and Ecuador shortly after the earthquake occurred. [19] [4] [20] Chile was subsequently hit by a large tsunami in its northern territories, with a maximum height of 4.63 m (15.2 ft) in Arica. [21] [6]