Great Chilean Earthquake

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A Valdivia street after the earthquake of May 22, 1960

The Great Chilean Earthquake or Valdivian Earthquake (Terremoto de Valdivia in Spanish) of May 22, 1960 is the largest magnitude earthquake recorded since seismographic monitoring began. Striking at 19:11 UTC (early afternoon local time), it measured 9.5 [1] magnitude and affected southern Chile, Hawaii, Japan, and the Philippines.

Its epicenter was located in Valdivia, approximately 700 kilometers (435 miles) south of Santiago. The earthquake caused localized tsunamis that hit the Chilean coast severely, with waves up to 25 meters high. The main tsunami ran through the Pacific Ocean and devastated Hilo, Hawaii, where waves as high as 10.7 meters high (about 35 feet) were recorded, 10,000 kilometers (6,200 miles) from the epicenter, as well as coastal regions of Japan and the Philippines. The total number of fatalities from the earthquake and tsunami was estimated to be 6,000.^[1] The estimated damage costs were over half a billion dollars ($3.5 billion in 2005 USD).^[1]