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 ...
VENTURA COUNTY, CA - A preliminary 3.4 magnitude quake was reported close to Ojai Tuesday morning, according to the U.S.
Several earthquakes, the largest measured at magnitude-3.3, were reported Thursday morning in Ventura County. The earthquakes ...
“On December 4, 2025, the ShakeAlert EEW system released an incorrect alert for a magnitude 5.9 earthquake near Reno and ...
A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San Francisco, the U.S. Geological ...
The quake came only eight days after three earthquakes shook the area in the course of about 100 minutes. More than 30 quakes ...
The United States Geological Survey put out a false alarm for a 5.9 earthquake east of Dayton, Nevada, on Thursday morning.
Aftershocks have been recorded for both earthquakes. On Dec. 8, Japanese authorities warned an even more powerful earthquake ...
A notification about a magnitude-5.9 earthquake in western Nevada near the California border was a false alert, the USGS said ...
CONTRA COSTA COUNTY, CA - around midnight Monday, a preliminary 2.0 magnitude quake was recorded near San Ramon, according to ...
Two small earthquakes were recorded near Concrete on Monday morning, according to the U.S. Geological Survey. The first ...