ORANGE COUNTY, CA - on Sunday around midday, a 3.3 magnitude quake was registered near San Clemente, according to the U.S.

TRINITY COUNTY, CA - A 2.0 magnitude quake was recorded near Hayfork Thursday morning, the U.S. Geological Survey reported.

It feels like discovering one of the state's best-kept secrets.

The U.S. Geological Survey later deleted a page with information about the reported quake.

Nestled in the heart of the UC Davis Arboretum lies the California Rock Garden, an educational haven designed to showcase the state's diverse geology. Developed by the Department of Earth and ...

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. See Senior Director of TV Programming Meredith Speight’s recommendations from ...

The ShakeAlert system that warns about imminent shaking arriving from earthquakes sent a false alarm across California on ...

Eastern California is the perhaps the best place in the country to learn geology. The deserts beyond the Sierra Nevada host glacial features, volcanoes and rivers. Beautiful stratigraphic layers are ...

In the warm afternoons of early autumn, Bay Area residents head for the Coast Range north of San Francisco. They hike, picnic and pluck flowers atop Mount Tamalpais and its sister hills, which ...

California’s state geologist has concluded that an active earthquake fault is underneath a massive proposed skyscraper project in Hollywood, setting the stage for a huge battle at City Hall over ...

President Obama’s declaration that a large swath of Coast Range land will become the Berryessa Snow Mountain National Monument pleased a lot of people, including lovers of rocks. The park displays ...