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 ...

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 ...

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 ...

SANTA CLARA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.2 magnitude quake occurred close to San Martin Sunday afternoon. A tremor shook the area at 5:29 p.m. The earthquake's ...

Did you feel it? A 3.3 magnitude earthquake struck in San Bernardino County Thursday evening. The temblor, according to the United States Geological Survey, struck in the San Bernardino National ...

"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 ...

The 36th Anniversary of the deadly Loma Prieta earthquake prompted public awareness messages about earthquake preparedness. It also came as the U.S. Government shutdown has led to furloughs of ...

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 FRANCISCO (KGO) -- As we approach the 36th anniversary of the devastating 6.9-magnitude Loma Prieta earthquake, you may be wondering, how safe is San Francisco? The city has an ongoing campaign to ...