The U.S. Geological Survey reported a magnitude 3.2 earthquake at 10 a.m. near Basin Butte, about 10 miles northwest of ...

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

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

A 4.5 magnitude earthquake struck off the coast of Oregon early Sunday morning, according to the U.S. Geological Survey. The ...

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 ...

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

A series of earthquakes, including a 4.0 magnitude earthquake, struck near San Ramon Saturday afternoon, according to the United States Geological Survey.

A wave of nearly 30 earthquakes struck the Tri-Valley overnight, ranging up to a preliminary magnitude of 4.0 struck ...

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

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