For more than a month, the Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes, rattling windows and raising fears across California.

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.

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 around San Ramon,

The East Bay Area has been rattled by a cluster earthquakes in recent weeks. According to KQED, more than 150 earthquakes jolted the area near San Ramon last month alone. On Dec. 8, a total of 10 earthquakes hit the area with preliminary magnitudes of 2.5 or above, KQED reports.

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

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

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 recent uptick isn’t out of the ordinary, according to U.S. Geological Survey seismologist Susan Hough.

California has been hit by an earthquake swarm for the fourth day in a row. Residents have been experiencing earthquake swarms for nearly a week, with the latest hitting on Tuesday, December 16. The US Geological Survey (USGS) reported that a quake with a 3.

Belief in “earthquake weather" is common, especially in California, but scientists are clear that there is no such thing.