SONOMA COUNTY, CA - A preliminary 2.0 magnitude quake was registered near Cobb Wednesday night, according to the U.S.

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

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

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

Geologic clues reveal a hidden link between two major faults. A Cascadia quake might set the San Andreas in motion soon after ...

The annual Great ShakeOut at 10:16 a.m. on Oct. 16, gives individuals and organizations an opportunity to practice earthquake preparedness drills.

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

Are you prepared for an earthquake? The California Office of Emergency Services is making sure you are. Since California is ...

Researchers at the Statewide California Earthquake Center at USC Dornsife warn that powerful, fast-moving earthquakes could ...

OSU researchers find Cascadia Subduction Zone and San Andreas Fault may be synchronized — with the potential for quakes on ...

Two of North America's most notorious earthquake faults may be more closely linked than scientists once thought, raising fears that a massive quake in the Pacific Northwest could set off another ...

Supershear earthquakes, which cause intense shaking, are more common than once thought, posing a risk to California. New research urges updates to seismic forecasts and infrastructure assessments, ...