On December 4, 2025, millions of cell phones in California and Nevada buzzed with ShakeAlert warnings of a magnitude 5.9 ...

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 ...

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

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

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 ...

“On December 4, 2025, the ShakeAlert EEW system released an incorrect alert for a magnitude 5.9 earthquake near Reno and Carson City, Nevada,” the statement read. “The event did not occur, and has ...

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

Could the string of small earthquakes be an indication of the fact that the earthquake history in the Bay Area may not be complete as yet? In the evening hours of the 19th of December, the string of ...

The United States Geological Survey put out a false alarm for a 5.9 earthquake east of Dayton, Nevada, on Thursday morning.

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

Several earthquakes, the largest measured at magnitude-3.3, were reported Thursday morning in Ventura County. The earthquakes ...