Scientists have detected unusual activity along the San Andreas Fault, sparking concerns that a major earthquake could be ...

A minor, 3.8-magnitude earthquake struck in Southern California on Monday, according to the United States Geological Survey.

Several earthquakes with epicenters beneath the ocean surface rattled the Northern California coastline early Monday. The ...

A series of moderate earthquakes, including a 4.4 magnitude temblor, struck early Monday morning off the coast of Northern California.

California is preparing for the annual ShakeOut earthquake drill ... and officials warn that prior seismic activity does not necessarily mean more powerful temblors are imminent.

The United States has dealt with a flurry of earthquakes this month, raising concerns about "The Big One." Last week, the ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Monday’s 4.4 magnitude earthquake that ...

California has experienced three earthquakes in the last 24 hours in an area being closely monitored for a major quake. The US Geological Survey (USGS) detected the seismic activity along the San ...

Minor quakes can disrupt natural tectonic patterns deep underground and change stress landscape, new study finds.

The magnitude 5.2 earthquake that shook most of Southern California on Monday did not result in any reported injuries or damage. But the stronger-than-expected tremor has brought into focus its ...

Monday’s 4.4 magnitude earthquake that jolted the Los Angeles area is part of a broader trend of increased seismic activity in Southern California that is likely to continue, according to the ...