Fossil Falls is an incredibly accessible natural wonder, and yet it feels like discovering one of the state's best-kept ...

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 ...

These earthquakes are part of a broader pattern of seismic activity that has been observed in the region, highlighting the geological volatility of California, particularly in areas along the San ...

At least seven earthquakes have struck in California in the last 24 hours, according to data from the United States ...

The earth and geologic time. Earth materials -- Geologic time -- Plate tectonics -- Southern California through geologic time. Overview of the geologic history of Southern California -- Proterozoic ...

FOLLOWING the earlier studies of the igneous and metamorphic rocks of the mining districts of California, there has more recently been an immense amount of detailed and accurate work devoted to ...

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 ...

SAN JOSE, Calif. (AP) — California geology officials have released an updated seismic map that includes more than 50 new fault lines discovered over the last two decades. The officials hope the map, ...

Like Italy, California is a restless landscape straddling two major tectonic plates. But while our earthquake risks are similar, the seismic forces that underlie both regions are quite different. Our ...