SAN LUIS OBISPO COUNTY, CA - A preliminary 2.0 magnitude quake was recorded near Lake Nacimiento Tuesday morning, the U.S.

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 ...

A 3.5-magnitude earthquake struck near Big Bear in San Bernardino County late Saturday night, according to the United States ...

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 ...

The highest hazard areas are near major, active faults. But strong and damaging shaking is "possible anywhere in California." ...

A 3.2-magnitude earthquake shook parts of Southern California, the U.S. Geological Survey reported. The about 10-mile deep ...

The US Geological Survey reported a preliminary 3.4 magnitude earthquake close to California's Big Bear City on Sunday ...

“Over the longer term, we expect substantial production growth to come from unconventional reservoirs such as tight sandstones and shales,” Occidental said in a regulatory filing for the spin-off. “As ...

Assembling California by John McPhee, Farrar ,Straus and Giroux, $21, 304pp. This is the fourth and last of John McPhee’s books on American geology, named collectively “Annals of the Former World.” ...

A magnitude 4.3 earthquake struck in Berkeley, California early Monday morning, according to the U.S. Geological Survey. It was originally reported as a magnitude 4.6, but was then downgraded.

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 ...