CONTRA COSTA COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.6 magnitude quake shook near San Ramon at ...

CONTRA COSTA COUNTY, CA - Monday night, a 3.3 magnitude quake was registered close to San Ramon, according to the U.S.

The U.S. Geological Survey reported a magnitude 3.3 earthquake southeast of San Ramon at 10:47 p.m. on Monday night.

A small 3.3 magnitude earthquake struck near San Ramon, California, late Monday night local time, the U.S. Geological Survey ...

A preliminary 3.6 magnitude earthquake struck Thursday, centered in Vallejo according to the United States Geological Survey.

This is read by an automated voice. Please report any issues or inconsistencies here. New research suggests the San Andreas fault and the Cascadia subduction zone could produce devastating ...