SONOMA COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.9 magnitude quake rattled near The Geysers ...

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 ...

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

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

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 ...

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

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

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

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

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 ...