SISKIYOU COUNTY, CA - A preliminary 2.1 magnitude quake was detected near Tennant Wednesday afternoon, according to the U.S.

SONOMA COUNTY, CA - A preliminary 2.2 magnitude quake was detected near The Geysers around midday Wednesday, according to the ...

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 ...

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

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

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

San Ramon has been hit by multiple quakes over the past four days, including magnitudes 2.9, 2.3, and 2.2 on December 13, a 2 ...

The ShakeAlert system that warns about imminent shaking arriving from earthquakes sent a false alarm across California on ...

Residents in Nevada woke up to a shocking 5.9 magnitude earthquake alert, but after the panic settled, the whole thing turned ...

A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near ...