A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake ...

A minor, 3.3-magnitude earthquake struck in Northern California on Monday, according to the United States Geological Survey.

Nearly all of California has a more than 95% chance of a damaging earthquake in the next century, a new United States Geological Survey map shows.. The new USGS National Seismic Hazard Model ...

The hazard zones are based on a number of possible worst-case scenarios, such as if a huge 9.3-magnitude underwater earthquake near Alaska’s Aleutian Islands caused a large tsunami, an event ...

A map by the California Geological Survey shows faults near the Lake Almanor area in Plumas County, where a magnitude 5.5 earthquake struck Thursday, May 11, 2023, followed by a magnitude 5.2 ...

Santa Rosa City Schools campuses are being transformed this summer, but two campuses must undergo required earthquake studies.