A powerful earthquake along a major California fault jolted millions of residents out of their routines, then kept nerves on edge as a drumbeat of aftershocks rolled across the region. The main shock ...

A major earthquake hasn't struck any of California's biggest cities in more than three decades, but experts and officials say the so-called "Big One" is a matter of when, not if. And the risk is far ...

According to USGS data, the seven earthquakes occurred over a span of two days and were centered near the city of Santa Rosa in Sonoma County. Preliminary readings placed the epicenters predominantly ...

Today is the Great ShakeOut, an earthquake drill. The event is at 10:16 a.m. People should "drop, cover and hold" during an earthquake. OAKLAND, Calif. - Millions of Californians are set to "Drop, ...

An earthquake measuring magnitude 3.9 struck north of the San Francisco Bay Area on Nov. 24, according to the USGS.

Shaking the rust off people’s emergency preparedness skills, an earthquake simulator that has been touring the state ahead of California’s annual drill stopped at Cal State Fullerton on Wednesday, Oct ...

This is read by an automated voice. Please report any issues or inconsistencies here. A major earthquake hasn’t struck any of California’s biggest cities in more than three decades, but experts and ...