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.

A preliminary magnitude 3.3 earthquake was recorded near Borrego Springs, which is in northeastern San Diego County.

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 seismic activity appears to be concentrated ... Warning Center would make the ultimate determination. An earthquake ruptured off California’s coast on Thursday morning, triggering a tsunami ...

This is an archived article and the information in the article may be outdated.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 ...

“You’re going to have some variability in these earthquakes.” While the recent heightened activity doesn’t increase the odds of Southern California getting hit with a large, damaging ...

This map from the U.S. Geological Survey shows the area of Southern California rattled ... about what leads up to a large earthquake. Some say there’s more activity before a major quake, others ...

About 5% to 10% of all California earthquakes are followed by a larger one within a week, and the probability of a larger quake depends on how much aftershock activity there is, according to the USGS.

California has experienced four earthquakes in less than 12 hours. The seismic activity began around 9pm ET when a 3.5 magnitude hit outside of Little Lake. The US Geological Survey (USGS ...

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 ...