A sudden jolt rocked a peaceful Sunday afternoon in Northern California. The 4.7 magnitude earthquake struck near Susanville ...

For generations, scientists believed that the West Coast’s two great earthquake engines — the Cascadia subduction zone and the San Andreas fault — operated on separate geologic stages. One dives, one ...

They are two of the West Coast’s most destructive generators of huge earthquakes: The San Andreas fault in California and the Cascadia subduction zone offshore of California’s North Coast, Oregon, ...

The quakes come as California sees the effects of an atmospheric river that has caused flash flooding, rescues, and ...

The first “Big One” earthquake in more than a decade has rattled the world. What if it had happened anywhere else? Say, ...

For more than a month, the San Francisco Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes — the latest in a series of seismic swarms that have rattled windows and raised fe ...

For more than a month, the Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes, rattling windows and raising fears across California.

The disaster film "San Andreas" received a real-time fact check from one of Southern California's foremost seismologists during its premiere Tuesday night in Hollywood. U.S. Geological Survey ...