On today's date in 1707, a catastrophic 8.6 magnitude earthquake hit Japan. This quake may have played a role in the last ...

Local emergency agencies say they are monitoring the seismic activity but have not issued any tsunami warnings.

One of the most dangerous faults in the United States, the Cascadia Subduction Zone, may be able to trigger an earthquake on ...

Residents of the US’s West Coast have long feared “The Big One” – the apparently inevitable massive earthquake that will one day hit where the Pacific tectonic plate meets its North American neighbor.

An earthquake, estimated at magnitude 4.3, ruptured about 3 a.m. in Berkeley. An earthquake strong enough to awaken people across the region rattled the San Francisco Bay Area early Monday. The ...