For millions of Californians, the ground did not simply shake once and fall silent. It pulsed again and again over roughly ...

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

The San Jacinto Fault, considered part of the San Andreas Fault system, has a 5% chance of magnitude 6.7 or larger earthquakes. The line begins at Cajun Pass and runs southeast through San Bernardino, ...

SHASTA COUNTY, CA - A preliminary 2.3 magnitude quake was recorded close to Burney Wednesday morning, according to the U.S.

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

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

The clusters of earthquakes have all been underneath the East Bay suburb of San Ramon, which is close to the Calaveras fault.

FRESNO COUNTY, CA - the U.S. Geological Survey reported that a 2.8 magnitude quake shook near Toms Place Wednesday morning. The tremor, which struck the area at 7:18 a.m., was centered approximately ...

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 ...

CONTRA COSTA COUNTY, CA - A preliminary 2.9 magnitude quake was registered near San Ramon on Monday around midday, the U.S.

CONTRA COSTA COUNTY, CA - According to the U.S. Geological Survey, a 3.2 magnitude quake rattled close to San Ramon Thursday morning. A tremor shook the area at 7:27 a.m. The earthquake's epicenter ...