Twin Earthquakes Off California Coast
No tsunami warnings issued
The U.S. Geological Survey says two large earthquakes have struck in the Pacific Ocean off the coast of southern California and Mexico.
The first quake, with a preliminary magnitude of 6.4, was recorded at 2:36 a.m. (1036 GMT) Friday, 163 miles (262 kilometers) south southwest of the California city of Avalon and 167 miles west southwest of Rosarito, Mexico.