CONTRA COSTA COUNTY, CA - A preliminary 2.0 magnitude quake was recorded close to San Ramon around midday Tuesday, according ...

A major earthquake hasn't struck any of California's biggest cities in more than three decades, but the "Big One" is a matter ...

An earthquake with a magnitude of 3.5 struck Northern California on Sunday in Humboldt County, just north of the Mendocino ...

A minor, 3.3-magnitude earthquake struck in Southern California on Thursday, according to the United States Geological Survey ...

Supershear earthquakes are more common than previously believed, some scientists say — carrying potentially profound risk for ...

The Great California ShakeOut is coming. The event is an annual earthquake drill, aimed at increasing public awareness about ...

A total of 980,458 participants were registered in San Diego to stop everything for a minute to "drop, cover and hold on" at ...

Millions of Californians are set to "Drop, Cover, and Hold On" on Thursday as part of the annual Great California ShakeOut ...

In the Bay Area, BART plans to automatically slow down its trains and have them come to a brief stop, as the system is ...

Volunteers could sit inside the trailer and feel the sensations that take place during a high-magnitude quake.

An earthquake simulator called the Shake Trailer is making a tour of the state this week to help people prepare for a massive ...