CONTRA COSTA COUNTY, CA - A 3.0 magnitude quake was recorded close to San Ramon Tuesday morning, according to the U.S.

SONOMA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.6 magnitude quake occurred near Glen Ellen ...

A preliminary magnitude-?? earthquake was reported… Whether you feel shaking from an earthquake largely depends on three ...

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

Over the next three years, researchers—including students—will continue to evaluate the cables’ ability to monitor seismic ...

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, ...