The fault, which is part of the San Andreas Fault system, produced two 6.2-magnitude earthquakes last century.

The decade-long final phase of the Golden Gate Bridge seismic retrofit will begin in 2026, reinforcing the 87-year-old ...

The 2015 disaster thriller San Andreas is far from boring, but the earthquake movie does have its … faults. Dwayne “The Rock” ...

Scientists long treated Cascadia and San Andreas as separate, but new research led by Chris Goldfinger suggests they can move ...

For generations, scientists believed that the West Coast’s two great earthquake engines — the Cascadia subduction zone and the San Andreas fault — operated on separate geologic stages. One dives, one ...

One of the most dangerous faults in the United States, the Cascadia Subduction Zone, may be able to trigger an earthquake on the San Andreas Fault, a new study says. But some scientists want more ...

"It's kind of hard to exaggerate what a M9 earthquake would be like in the Pacific Northwest," says Dr. Chris Goldfinger, a paleoseismologist at Oregon State University and lead author of the new ...

Just minutes after a minor earthquake shook the Bay Area, San Francisco officials demonstrated the city’s preparedness for a more serious natural disaster — with what they called the nation’s only ...

SAN DIEGO COUNTY, Calif. — USGS reported a preliminary magnitude 3.0 earthquake north of Borrego Springs Wednesday just after 8:00 p.m. The latest details can be found on the USGS website. The City of ...

A 3.2-magnitude earthquake shook the North Coast of San Luis Obispo County early Thursday morning, but was not widely felt because it occurred in the middle of the night. The quake was located 9.3 ...