Supershear earthquakes are more common than previously believed, some scientists say — carrying potentially profound risk for ...

SANTA CLARA COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.3 magnitude quake struck near Gilroy ...

CONTRA COSTA COUNTY, CA - Monday afternoon, a 3.3 magnitude quake was recorded near Clayton, according to the U.S. Geological Survey. It was reported that a tremor rattled the area at 3 p.m. The ...

A preliminary magnitude 3.2 earthquake was recorded about 2 miles southeast of Warner Springs, according to USGS.

ALAMEDA COUNTY, CA - According to the U.S. Geological Survey, a 4.3 magnitude quake rattled close to Berkeley Monday morning. The tremor jolted at 2:56 a.m., with its epicenter situated roughly 1 mile ...

MARIPOSA COUNTY, CA - A 2.8 magnitude quake was recorded near Mariposa Saturday afternoon, according to the U.S. Geological Survey. At 2:28 p.m., the region was shaken by a tremor. The earthquake ...

The US Geological Survey reported a preliminary 3.4 magnitude earthquake close to California's Big Bear City on Sunday ...

A series of small earthquakes hit near the Big Bear area in San Bernardino County starting late Saturday night into Sunday ...

SAN MATEO COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.4 magnitude quake occurred near Pacifica at midday on Tuesday. The tremor shook the area at 11:26 a.m. It occurred at a ...

In order to bolster the knowledge of quakes and preparedness measures of Californians, the California Office of Emergency Services (CalOES) is going on the Great California ShakeOut Tour – which ...