A swarm of earthquakes shook the East Bay on Monday morning.

Earthquakes are unsettling, but a swarm of earthquakes can be downright scary, and some San Francisco residents are worried the Big One is near.

A rapid-fire sequence of at least 33 earthquakes struck near San Ramon, California, within roughly 90 minutes on February 2, 2026, topped by a magnitude 4.2 event that rattled the eastern San ...

CONTRA COSTA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.2 magnitude quake struck close to San Ramon on Thursday around midnight.

CONTRA COSTA COUNTY, CA - A preliminary 2.6 magnitude quake was reported near San Ramon Tuesday morning, according to the U.S. Geological Survey.

A series of small earthquakes rattled the San Francisco Bay Area in an area that’s had a lot of seismic activity in recent ...

At least 25 moderate and smaller earthquakes hit San Ramon on Monday morning, jolting some residents awake. The biggest quake was a 4.2 magnitude. Since Dec. 1, 2025, the USGS said there have been ...

The jolt of seismic activity Monday was among the busiest of a swarm that began nearly 3 months ago. Until the quake Friday, an earthquake swarm that began Nov. 9 around San Ramon had delivered 91 ...

The quake struck in an extremely seismically active area called the Geysers.

San Ramon, Calif., has been rattled by dozens of small earthquakes in recent months. Even in a region used to regular shaking, it’s been a lot.