Initially , it was reported as 7.2 magnitude . The U.S. Geological Survey says its depth was 626 kilometers , or 390 miles . A magnitude 8.1 earthquake struck off the coast of Chile on March 26, 2010.
The U.S. Geological Survey says its depth was 626 kilometers , or 390 miles . A magnitude 8.1 earthquake struck off the coast of Chile on March 26, 2010.