SALT LAKE CITY -- Scientists have discovered evidence of four big earthquakes that rocked the Salt Lake Valley long before pioneers arrived -- and they're not on the well-known Wasatch Fault on the ...

When it comes to earthquakes, southern Napa County has more to worry about than the West Napa Fault. The city of Napa lies between the Northern Hayward/Rodgers Creek Fault that runs through Sonoma ...

Stay on top of what’s happening in the Bay Area with essential Bay Area news stories, sent to your inbox every weekday. Bay Area-raised host Ericka Cruz Guevarra brings you context and analysis to ...

SAN FRANCISCO (AP) - Three fault segments running beneath Northern California and its roughly 15 million people are overdue for a major earthquake, including one section that lies near the dams and ...

An earthquake of the caliber that rocked China this week causing catastrophic loss of life and widespread damage is unlikely to occur on less powerful faults in the Las Vegas Valley, but the valley is ...

SALT LAKE CITY — Scientists have dug a pair of trenches in a field near I-215, giving them a rare look at the West Valley fault line. It's a cross section of the fault line, which is like a branch of ...

Aftershocks of the magnitude 7.1 earthquake near Ridgecrest have been creeping into areas close to two major earthquake faults, a development that is generating interest and some concern among ...

New 3-D numerical modeling that captures far more geometric complexity of an active fault segment in southern California than any other, suggests that the overall earthquake hazard for towns on the ...

Two faults bounding Utah's biggest city may combine to produce especially powerful earthquakes, geologists will report in Salt Lake City Wednesday at the annual meeting of the Seismological Society of ...

Boulders block U.S. 395 near the California-Nevada state line after a magnitude 6.0 earthquake Thursday. (Brett Durrant / Associated Press) The magnitude 6.0 earthquake that rattled parts of Northern ...

An infusion of federal funding will help expand or strengthen the U.S. Geological Survey’s earthquake early-warning system in California around Lake Tahoe, Death Valley, Mammoth and Bishop. The ...