A swarm of early morning earthquakes has struck the San Francisco Bay Area, setting off alarms and rattling thousands of residents.

Multiple earthquakes have broken out near two of California's most populated cities, and experts fear more aftershocks are ...

Residents in Northern California were rattled by a sizable quake on Tuesday, which sent vibrations throughout the coast.

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More than a dozen earthquakes struck near San Ramon on Monday morning, according to the United States Geological Survey.

Data from the USGS shows the seismic events have ranged in strength from 2.5 up to 4.2 in magnitude.

A small town in California was hit by earthquakes once every 22 years for over a century, setting the stage for a major seismic experiment in the 1980s and 90s. But the quake ended up being 11 years ...

A 4.9-magnitude earthquake and several aftershocks rattled the Inland Empire on Monday night, according to the United States Geological Survey.

A second strong earthquake struck the Coachella Valley this week, worrying residents about a possible stronger quake in the future.

After yet another notably sized earthquake struck near Indio overnight, following two days of seismic activity, renowned seismologist Dr. Lucy Jones says that even more temblors could hit the area due ...

A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating earthquake risk at the Cascadia subduction zone. When you purchase through ...

Add Yahoo as a preferred source to see more of our stories on Google. Tiny quakes help scientists map hidden faults where the San Andreas meets Cascadia, reshaping quake hazard estimates. (CREDIT: ...