How long did the 1868 earthquake last?
42 seconds
It hit at 7:53am on October 21, 1868, and was estimated to have been between magnitude 6.8 and 7.0. The shaking lasted 42 seconds, and although the East Bay was relatively sparsely populated, it killed 30 people (including 4 in San Francisco) and did an estimated $350,000 (in 1868 dollars) in damage.
What is the most significant fact about the Chilean earthquake?
Chile earthquake of 1960, the largest earthquake recorded in the 20th century. Originating off the coast of southern Chile on May 22, 1960, the temblor caused substantial damage and loss of life both in that country and—as a result of the tsunamis that it generated—in distant Pacific coastal areas.
How many died in the Valdivia earthquake?
1,655
1960 Valdivia earthquake/Number of deaths
Approximately 1,655 killed, 3,000 injured, 2,000,000 homeless, and $550 million damage in southern Chile; tsunami caused 61 deaths, $75 million damage in Hawaii; 138 deaths and $50 million damage in Japan; 32 dead and missing in the Philippines; and $500,000 damage to the west coast of the United States.
Why is Chile prone to earthquakes?
earthquakes in Chile. Chile is located on a tectonic plate boundary and a subduction zone called the Peru-Chile trench. A subduction zone is where the ocean crust slides under the continental margin which causes compressional deformation (mountain building), earthquakes and volcanoes.
Why did the 1868 Arica earthquake generated a tsunami?
The earthquake occurred along the boundary between the Nazca Plate and the South American Plate. The earthquake was likely a result of thrust-faulting, caused by the subduction of the Nazca plate beneath the South American plate.
How long did Chile earthquake 1960 last?
approximately 10 minutes
It occurred in the afternoon (19:11 GMT, 15:11 local time), and lasted for approximately 10 minutes….1960 Valdivia earthquake.
| Iquique Santiago Punta Arenas | |
|---|---|
| UTC time | 1960-05-22 19:11:14 |
| Local date | 22 May 1960 |
| Local time | 15:11:14 |
| Duration | approx. 10 minutes |