Add Yahoo as a preferred source to see more of our stories on Google. Dozens of small earthquakes have shaken the San Francisco Bay Area over the last month, rattling nerves and raising fears that ...

California’s most dangerous faults are not only defined by the headline grabbing magnitude 7 shocks that topple freeways and rupture gas lines. Deep below the surface, swarms of tiny earthquakes, some ...

Dozens of small earthquakes have shaken the San Francisco Bay Area over the last month, rattling nerves and raising fears that more seismic events may be on the horizon. The clusters of earthquakes — ...