AlHijjah 8, 1433, Oct 24, 2012, SPA -- A powerful earthquake struck Costa Rica's Pacific coast on Tuesday, swaying buildings and sending people running into the streets in the nation's capital of San Jose. The 6.5-magnitude quake was centered in the Guanacaste region of the Central American country, according to the U.S. Geological Survey. It had a depth of 24.5 miles (39.5 kilometers), AP quoted a preliminary report as saying.