A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San Francisco, 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 ...

CONTRA COSTA COUNTY, CA - Saturday morning, a preliminary 2.6 magnitude quake was reported close to San Ramon, according to ...

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

In California's East Bay, a recent swarm of small earthquakes has pushed long-standing seismic risks back into public view. Since early November 2025, at least 90 minor quakes have been recorded ...

A rare, ultra-long earthquake in Myanmar revealed that mature faults can deliver their full force directly to the surface.

The quake came only eight days after three earthquakes shook the area in the course of about 100 minutes. More than 30 quakes ...

On Monday morning, around 30 minor earthquakes erupted in a swarm near the Geysers geothermal field south of Clear Lake. The day before, seven quakes rattled Sonoma County, including a 4.0 quake. The ...

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.

California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical ...