A preliminary magnitude 4.0 earthquake hit the North Bay Sunday afternoon, according to the United States Geological Survey.

A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near ...

SAN LUIS OBISPO COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.4 magnitude quake occurred near Pismo ...

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

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

Three earthquakes rocked Sonoma County on Sunday afternoon. The first quake struck at 3:30 p.m. just east of Rohnert Park and was recorded with a magnitude 4.0, according to the U.S. Geological Survey ...

“On December 4, 2025, the ShakeAlert EEW system released an incorrect alert for a magnitude 5.9 earthquake near Reno and ...

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

An alert that notified Bay Area residents of a 5.9 earthquake Thursday morning in Nevada was deleted by the U.S. Geological ...

Nearly 75% of the country is at risk for a potentially damaging earthquake in the next 100 years, according to a recently updated map from the U.S. Geological Survey. The map is the first to include ...

A magnitude 4.0 earthquake was reported Sunday afternoon at 3:30 p.m. three miles from Santa Rosa, according to the U.S.

A notification about a magnitude-5.9 earthquake in western Nevada near the California border was a false alert, the USGS said ...