Thursday’s 3.1 magnitude earthquake was the latest of five notable aftershocks to hit Berkeley since a 4.3 magnitude earthquake rattled the college town on Sept. 22. A day later, the Bay Area ...

Amid Southern California's most seismically active year in decades, some cities have yet to require retrofits of many apartment buildings deemed most at risk of collapse.

The San Joaquin fault runs along the base of the Coastals from Newman to east of Tracy. The third is the Corral Hollow fault ...