A new scientific warning has put California’s earthquake risk in sharp focus: supershear earthquakes—rare, high-speed ...

SONOMA COUNTY, CA - Saturday night, a preliminary 2.3 magnitude quake was detected near The Geysers, according to the U.S.

SAN BENITO COUNTY, CA - on Friday around midday, a preliminary 2.9 magnitude quake was detected close to New Idria, according ...

A 3.2-magnitude earthquake struck Northern California, just near Sonoma County, early Friday morning, according to the U.S.

A preliminary magnitude 3.0 earthquake was recorded north of Borrego Springs Wednesday night, according to USGS.

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 ...

An earthquake with a magnitude of 3.5 struck Northern California on Sunday in Humboldt County, just north of the Mendocino ...

A minor, 3.3-magnitude earthquake struck in Southern California on Thursday, according to the United States Geological Survey ...

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

Down in California, the San Andreas Fault marks the boundary where the North American and Pacific plates are sliding past ...

An earthquake simulator called the Shake Trailer is making a tour of the state this week to help people prepare for a massive ...

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