Seismologist Deborah Kilb was wading through California earthquake records from the past four decades when she noticed ...

California was hit by multiple earthquakes on Wednesday, just days after a major 5.2 magnitude quake rocked the state.

Millions of people across Southern California learned about a 5.2-magnitude earthquake that hit San Diego County on Monday ...

Southern California typically experiences more than 10,000 earthquakes per year, according to the United States Geological ...

Southern California has been jolted by a strong earthquake near San Diego. The U.S. Geological Survey says Monday morning's earthquake had a preliminary magnitude of 5.2 and was near the mountain town ...

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