IMPERIAL COUNTY, CA - A preliminary 2.0 magnitude quake was registered near Ocotillo Wells Saturday afternoon, according to ...

SAN RAMON — A cluster of earthquakes struck the San Ramon area Friday night, continuing a pattern of seismic activity in ...

On Monday morning, around 30 minor earthquakes erupted in a swarm near the Geysers geothermal field south of Clear Lake. The ...

SAN RAMON, Calif. - A pair of earthquakes with an epicenter in San Ramon rumbled the Bay Area on Saturday evening. The first ...

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

There were at least six separate earthquakes that measured above a magnitude of 2.5 in an earthquake swarm in the San Ramon ...

Three earthquakes each with a preliminary magnitude of 3.8 struck southeast of San Ramon shortly before 8 p.m. Friday, the ...

A wave of at least nine earthquakes ranging up to a preliminary magnitude of 4.0 struck southeast of San Ramon about 8 p.m.

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

The quake came only eight days after three earthquakes shook the area in the course of about 100 minutes. More than 30 quakes ...

The ShakeAlert system that warns about imminent shaking arriving from earthquakes sent a false alarm across California on Thursday morning for a magnitude 5.9 temblor that did not happen.