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

IMPERIAL COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.2 magnitude quake struck close to Mexicali, ...

Did you feel it? A magnitude 3.1 earthquake struck in Berkeley just east of Cal Memorial Stadium Thursday morning, according ...

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

The epicenter of the earthquake was along the San Andreas Fault, about 56 miles south of San Francisco and 10 miles north of ...

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

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

A 3.1-magnitude earthquake hit the San Francisco Bay Area of Northern California, the U.S. Geological Survey reported. The ...

The most widespread way is through Wireless Emergency Alerts (WEA), which sends loud alerts to all cellphones. If an ...

Millions of Californians have signed up to drop, cover and hold on Thursday for the Great California ShakeOut. The annual ...

The one-minute drill was developed to teach people what to do when a large temblor strikes. If you have the MyShake app, your ...

Students and other members of the campus climbed into a simulator to experience what a 7.0 quake would feel like.