A preliminary 2.3 magnitude quake was detected near Petrolia Saturday afternoon, according to the U.S. Geological Survey.

ALAMEDA COUNTY, CA - on Saturday around midday, a preliminary 2.3 magnitude quake was registered close to Sunol, according to ...

I couldn’t believe it—first Hurricane Hilary, and now earthquakes shaking Southern California! In this video, I react to the ...

What lies beneath Fickle Hill in northern California? Maybe the answer to an earthquake mystery that has puzzled ...

Lori Dengler was part of a “cold case” team looking at the Dec. 21, 1954 earthquake with new eyes and new technology.

A series of more than 100 earthquakes has hit Northern California, shaking up the Geysers geothermal steam field in Sonoma ...

The Cascadia Subduction Zone along the Pacific Northwest coast looms large in the scientific and public minds, as it has the ...

Multiple earthquakes shook parts of California over the weekend, including a temblor in San Bernardino County. The first was ...

Scientists link a magnitude 6.5 earthquake that shook Humboldt Bay, California, 71 years ago to the "locked" Cascadia ...

The massive 2025 Myanmar earthquake revealed that strike slip faults can behave in surprising ways. Using satellite data, ...

Seismic retrofit program offers up to $3,000 for older homes in over 1,100 ZIP Codes, now expanding to include rentals and other non-owner-occupied residential properties ...

The Diablo Canyon nuclear plant is in the midst of a relicensing process that, if successful, will keep it running for ...