Powerful earthquake strikes off Calif. coast

Seismic sound wave iStockphoto

MEXICO CITY The U.S. Geological Survey says a large earthquake has struck in the Pacific Ocean off the coast of Southern California and Mexico.

The 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.

It was at the relatively shallow depth of 6.3 miles (10.1 kilometers).

No tsunami warning has been issued.

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