The temblor was detected near Julian, California. There were no immediate reports of major damage or injuries.

The quake struck 8.3 miles deep near the Elsinore fault zone, one of the busiest seismic areas in California and part of the famous San Andreas fault system .

A 5.2 magnitude earthquake shook Southern California on Monday, according to the U.S. Geological Survey. The quake was centered in San Diego County but was felt as far north as Los Angeles. No injuries or damage have been reported,