CONTRA COSTA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.0 magnitude quake occurred near San Ramon ...

HUMBOLDT COUNTY, CA - A 2.6 magnitude quake was detected close to Petrolia Sunday night, the U.S. Geological Survey reported.

A swarm of 20 earthquakes has jolted Southern California, shaking communities just miles from Los Angeles. The largest quake ...

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

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 ...

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

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 ...

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

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 ...