A minor, 3.5-magnitude earthquake struck in Southern California on Saturday, according to the United States Geological Survey ...

California is riddled with a number of fault lines that frequently cause earthquakes, including Arrowhead, Waterman Canyon, ...

California was rocked by a third earthquake in less than six hours, this one a moderately weak 2.7-magnitude seismic event.

Researchers at Stanford University developed a new method to measure water levels in the state’s aquifers using readily available seismic data.

More than a dozen atmospheric rivers dumped rainfall on California in 2023 but replenished only 25 percent of the water lost from aquifers since 2006.

Did you feel it? Multiple earthquakes shook the Bay Area Thursday. They were recorded near Hayward, the USGS reported.

A series of small earthquakes shook the San Francisco Bay Area on Thursday, according to the United States Geological Survey.

Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

The strongest was a 3.4 magnitude quake that struck near San Bernardino, with more than 500 people feeling the quake.

Residents of a Southern California mountain community near the Eaton Fire burn scar were digging out of roads submerged in ...

Officials are grappling with the aftermath of the atmospheric river which caused mudslides and floods, especially in areas impacted by wildfires.