The clusters of earthquakes have all been underneath the East Bay suburb of San Ramon, which is close to the Calaveras fault.

SONOMA COUNTY, CA - According to the U.S. Geological Survey, a preliminary 2.6 magnitude quake occurred near Glen Ellen ...

Japan is learning what life is life under a megaquake watch. NPR's Rob Schmitz talks to Richard Allen, director of the Berkeley Seismology Lab, about what it means.

SANTA CLARA COUNTY, CA - Monday morning, a preliminary 2.0 magnitude quake was registered near Gilroy, according to the U.S.

California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical ...

After a 7.5-magnitude earthquake on Monday, Japanese officials issued a rare warning for a potentially even larger follow-up.

Japanese authorities say a megaquake could cause a devastating tsunami to strike eastern coastal areas of Japan ...

Aftershocks have been recorded for both earthquakes. On Dec. 8, Japanese authorities warned an even more powerful earthquake ...

A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San Francisco, the U.S. Geological ...

Thursday's non-quake highlighted the need for better earthquake-warning tools. Three western states have a system in place, ...

A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near ...

Japan’s government says that the chances of a magnitude 8 earthquake have increased. Scientists can’t predict when one will ...