A 4.9-magnitude earthquake and several aftershocks rattled the Inland Empire on Monday night, according to the United States ...

Northern California’s coast keeps you on alert, even on quiet days. Offshore, three tectonic plates meet near Humboldt County ...

Southern California was shaken by an intense earthquake swarm as more than 150 seismic disturbances struck the Coachella ...

A small town in California was hit by earthquakes once every 22 years for over a century, setting the stage for a major ...

Scientists are uncovering a hidden and surprisingly complex earthquake zone beneath Northern California by tracking swarms of ...

By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San Andreas fault meets the Cascadia subduction zone, an area that could give rise ...

A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating ...

Southern California's Coachella Valley experienced over 150 earthquakes within a 24-hour period, with USGS warning of ...

The earthquake occurred just before 6 p.m. local time and was felt across parts of the Coachella Valley and surrounding areas ...

Seismic tremors reveal a shallow fragment of ancient tectonic plate beneath Northern California, helping explain damaging ...

More than 70 percent of Californians live within 30 miles of a major fault.

More than a dozen earthquakes have struck Southern California in less than a day and experts warn that more tremors may be on ...