A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San Francisco, the U.S. Geological ...

On Monday morning, around 30 minor earthquakes erupted in a swarm near the Geysers geothermal field south of Clear Lake. The day before, seven quakes rattled Sonoma County, including a 4.0 quake. The ...

WASHOE COUNTY, CA - Sunday night, a 2.3 magnitude quake was registered near Fort Bidwell, according to the U.S. Geological ...

California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical ...

The federal government and earthquake experts blamed a technical glitch for the alert that sent warnings hundreds of miles ...

Major quakes in Japan and Alaska along with a spate of smaller earthquakes in California this fall make folks ask, is the Big ...

The San Jacinto Fault, considered part of the San Andreas Fault system, has a 5% chance of magnitude 6.7 or larger earthquakes. The line begins at Cajun Pass and runs southeast through San Bernardino, ...

The clusters of earthquakes have all been underneath the East Bay suburb of San Ramon, which is close to the Calaveras fault.

A preliminary 4.0-magnitude earthquake struck California’s Sonoma County on Sunday afternoon, according to the US Geological ...

For millions of Californians, the ground did not simply shake once and fall silent. It pulsed again and again over roughly ...

A magnitude 4.0 earthquake was reported Sunday afternoon at 3:30 p.m. three miles from Santa Rosa, according to the U.S.

Aftershocks have been recorded for both earthquakes. On Dec. 8, Japanese authorities warned an even more powerful earthquake ...