A new study suggests certain earthquake fault segments long thought to be stable may rupture and cause a mega-quake.
Dozens of small to moderate earthquakes struck southeastern California on Sunday, knocking trailer homes off their foundations, shattering windows and rattling nerves in a small farming town east of San Diego, near a fault shared with the Bay Area.
Scientists studying earthquake faults in the mountains west of Lake Tahoe say new high-resolution imaging technology has uncovered more substantial seismic hazards than previously believed.
A small earthquake with a preliminary magnitude of 2.2 rattled an area near San Jose Wednesday morning and was followed by an aftershock, according to the U.S. Geological Survey.
Another small earthquake centered in Berkeley struck the Bay Area overnight. The shaker hit in the same area as a series of quakes last week.
State lawmakers sought answers at a hearing Monday in Sacramento. They also heard about tsunami damage in California from the March 11 earthquake off Japan’s coast.
The California Geological Survey has made detailed maps of places where the ground can split during an earthquake available online.