The United States is crisscrossed by numerous fault lines, many of which have the potential to unleash significant ...

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

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 ...

If you felt the earth move under your feet in the last few days, you should know that Mother Earth may have even more rocking ...

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.

A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near San Francisco, the U.S. Geological Survey reports.

On July Fourth, southern California experienced a magnitude 6.4 quake — one of the largest temblors since 1989. Here's why there may be more coming.

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 ...