No reports of major injuries or structural damage have emerged, and authorities have not issued a tsunami warning.

A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near San Francisco, the U.S. Geological Survey reports. The other quakes in the Saturday, Dec. 21, swarm ranged ...

A series of earthquakes rattled the San Ramon area Friday night, with the largest being a preliminary magnitude 4.0, ...

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

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

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 ...

CONTRA COSTA COUNTY, CA - According to the U.S. Geological Survey, a 3.6 magnitude quake rattled near San Ramon Friday ...

The U.S. Geological Survey said two small earthquakes were recorded near Lynn Saturday evening, the first at 5:20 p.m. and a ...

An alert that notified Bay Area residents of a 5.9 earthquake Thursday morning in Nevada was deleted by the U.S. Geological Survey. The ShakeAlert message at 8:08 a.m. said the quake was about 15 ...

A series of earthquakes, including a 4.0 magnitude earthquake, rattled the area near San Ramon Friday, according to the United States Geological Survey.

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