CONTRA COSTA COUNTY, CA - the U.S. Geological Survey reported that a preliminary 2.7 magnitude quake rattled near San Ramon ...

For more than a month, the San Francisco Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes — the ...

Several small earthquakes struck in the East Bay near San Ramon on Friday evening, according to data from the U.S. Geological ...

A swarm of earthquakes rattled the Bay Area on the evening of Friday, December 19. The earthquakes occurred over a 30-minute span, according to the U.S. Geological Survey. There have been no reports ...

There were at least six separate earthquakes that measured above a magnitude of 2.5 in an earthquake swarm in the San Ramon ...

SAN RAMON — A cluster of earthquakes struck the San Ramon area Friday night, continuing a pattern of seismic activity in ...

A wave of at least nine earthquakes ranging up to a preliminary magnitude of 4.0 struck southeast of San Ramon about 8 p.m.

A wave of earthquakes ranging up to a preliminary magnitude of 4.0 struck southeast of San Ramon shortly before 8 p.m. Friday, the U.S. Geological Survey said.

In California's East Bay, a recent swarm of small earthquakes has pushed long-standing seismic risks back into public view.

California has experienced earthquake swarms for nearly a week, with the same city as the epicenter each time. Officials ...