A 6.3-magnitude earthquake struck off the San Diego coast at approximately 2:30 Friday morning, according to the U.S. Geological Survey.
The trembler was centered 167 miles west southwest of Rosarito, Mexico at a depth of seven miles. The epicenter is where "the Pacific (tectonic) plate moves to the northwest with respect to the North America plate,'' according to a USGS statement.
The quake was felt throughout Southern California and Mexico, according to USGS.
There were no reports of damage or injuries, and no tsunami warning was issued.
