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

SAN BERNARDINO COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.0 magnitude quake occurred close to Loma ...

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

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

The Great ShakeOut takes place on the third Thursday of every October. The event is part of a global earthquake drill.

The Helena Valley sits atop a variety of different sediments and rocks, making it particularly susceptible to earthquake ...

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

Locals in coastal areas were ordered to evacuate immediately and see higher ground. Follow Newsweek for live updates.

Lasting only a minute, it shook Pioneer Square with vigor and rattled office and convention centers from Seattle to Olympia ...