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, ...

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

A magnitude 4.0 earthquake struck Northern California on Wednesday at 6:18 a.m., about 5 miles east of Gilroy, the USGS ...

A 3.7 earthquake rattled San Ramon on Monday morning, following several earlier small quakes in the area, according to the ...

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

Thousands of people across the California Bay Area were rattled as a burst of minor earthquakes arrived in rapid succession, ...

Thursday's non-quake highlighted the need for better earthquake-warning tools. Three western states have a system in place, ...

CONTRA COSTA COUNTY, CA - A preliminary 2.3 magnitude quake was recorded near San Ramon Monday morning, according to the U.S.

CONTRA COSTA COUNTY, CA - A preliminary 2.9 magnitude quake was reported near San Ramon Monday morning, according to the U.S.

Percolating downwards, the extra water eventually found its way into a major fault zone that slices through the 12km-long ...

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 ...

Many residents in Northern California got a MyShake alert Thursday morning about a 5.9 earthquake in western Nevada, but it ...