A new scientific warning has put California’s earthquake risk in sharp focus: supershear earthquakes—rare, high-speed ruptures that outpace traditional seismic waves—pose a growing threat to the state ...

Millions of Californians are set to "Drop, Cover, and Hold On" on Thursday as part of the annual Great California ShakeOut earthquake drill, aimed at educating the public on earthquake preparedness.

Oakland officials participated in "The Great California Shakeout" on Thursday morning and called on members of the public to be prepared in the event of a major earthquake.

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

Nearly a million San Diego County residents participated Thursday in this year's Great California ShakeOut, the statewide earthquake preparedness drill, now in its 17th year.

A 3.2-magnitude earthquake struck off the north coast of San Luis Obispo in the early hours of October 30, 2025, according to ...

MENDOCINO COUNTY, CA - A preliminary 2.8 magnitude quake was detected close to Covelo Monday afternoon, according to the U.S.

Millions of residents, students and office workers in Los Angeles and Orange counties and across the state practiced their "drop, cover and hold on" steps Thursday as part of the 17th annual Great ...

Get ready: The Great California Shakeout is coming Thursday. The event is an annual earthquake drill, aimed at increasing public awareness about what to do during major shaking. Millions of people ...

A retired scientist with the USGS worries about the impact the government shutdown is having on the agency's earthquake ...

Nearly a million San Diego County residents will participate Thursday in this year's Great California ShakeOut, the statewide earthquake preparedness drill, now in its 17th year.