On Monday morning, around 30 minor earthquakes erupted in a swarm near the Geysers geothermal field south of Clear Lake. The ...

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

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

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

For millions of Californians, the ground did not simply shake once and fall silent. It pulsed again and again over roughly ...

The ShakeAlert system that warns about imminent shaking arriving from earthquakes sent a false alarm across California on ...

With earthquakes bouncing around the Pacific "Ring of Fire" some tremors have been going on in recent days up and down ...

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 ...

A magnitude 3.3 earthquake shook the Santa Rosa area in Northern California, followed by an overnight series of aftershocks, the U.S. Geological Survey reported.

People in the Bay Area continue to experience the “flare up” of earthquakes into Monday afternoon, Oakland being the latest ...

At least three earthquakes, each stronger than the last, struck Central California on Thanksgiving afternoon with preliminary magnitudes as high as 4.0, according to the U.S. Geological Survey. The ...

On Thanksgiving Day, residents of the Inland Empire experienced a series of earthquakes, the most significant being a 3.8-magnitude quake that struck near Idyllwild at 5:36 p.m. This seismic activity ...