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

CONTRA COSTA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.4 magnitude quake shook near San Ramon ...

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 ...

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

Major quakes in Japan and Alaska along with a spate of smaller earthquakes in California this fall make folks ask, is the Big ...

The federal government and earthquake experts blamed a technical glitch for the alert that sent warnings hundreds of miles ...

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 ...

The clusters of earthquakes have all been underneath the East Bay suburb of San Ramon, which is close to the Calaveras fault.

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

A swarm of 20 earthquakes has jolted Southern California, shaking communities just miles from Los Angeles. The largest quake ...

Aftershocks have been recorded for both earthquakes. On Dec. 8, Japanese authorities warned an even more powerful earthquake ...

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