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 ...

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 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 ...

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

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

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

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

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

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

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