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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.
Chile has been at a convergent plate boundary that generates megathrust earthquakes since the Paleozoic (500 million years ago). In historical times the Chilean coast has suffered many megathrust earthquakes along this plate boundary, including the strongest earthquake ever measured. Most recently, the boundary ruptured in 2010 in central Chile ...
Chile, Biobío Region: 9.5: 25.0: XII The 1960 Valdivia earthquake was the largest event recorded by a seismograph. Chile was left with major destruction from the earthquake and a large tsunami which swept across the Pacific. 2.226 people were killed and 3,000 were injured. 58,622 homes were destroyed. Damage costs were $1 billion (1960 rate).
A magnitude 7.0 earthquake was recorded in Northern California, the United States Geological Survey said. ... the 1960 Chile earthquake and the 1964 Alaska earthquake, which generated waves of ...
“Drop, Cover, Hold on. Protect yourself,” the U.S. Geological Survey warned moment before the eathquake struck.
Chile lies in a region which is adjacent to the fast-moving Nazca plate, and has high tectonic activity.The records for earlier centuries are apparently incomplete. Of the world's 46 known earthquakes with M ≥ 8.5 since the year 1500, one-third occurred in Chile [citation needed] and are shown in the map to the side.
The U.S. Geological Survey reported that a magnitude 7.0 earthquake occurred off the coast of Northern California about 10:44 a.m. PT about 60 miles offshore of Ferndale, California.
They formed part of the foreshock sequence for the 1960 Valdivia earthquake, the largest recorded earthquake in history. [6] The first was on May 21 at 06:02 UTC-4. [3] [7] Its epicenter was near Cañete, Bío Bío Region, Chile, and its magnitude was 8.1 [1] or 8.3 [2] M W and 7.3 [3] or 7.5 [4] M S. This earthquake, which lasted 35 seconds ...