MONO COUNTY, CA - Tuesday morning, a preliminary 2.5 magnitude quake was recorded near Mammoth Lakes, according to the U.S.

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

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

A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near San Francisco, the U.S.

Residents of San Ramon in California's East Bay have experienced more than 300 earthquakes over the past month, prompting widespread concern that a devastating seismic event may be approaching. The ...

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

The U.S. Geological Survey reports the small earthquake struck just before 3 p.m. about 1 mile west of Piedmont in Alameda County.

Sonoma County was hit by three earthquakes within a little more than half an hour Sunday, the largest one having a ...

Jack Creek Farms experienced 78 measurable earthquakes from Nov. 18 to Dec. 22, according to the U.S. Geological Survey.

Belief in “earthquake weather" is common, especially in California, but scientists are clear that there is no such thing.

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 ...