Was that an earthquake you just felt or merely a big truck rumbling by? You don't have to wonder thanks to the U.S.

In California, where the next “Big One” is an always-looming threat, some lessons learned from the 1925 Santa Barbara quake ...

A worldwide Android smartphone-based earthquake detection and early warning system can detect seismic activity in real time.

In Japan, swarms of earthquakes are fueling a dip in tourism and a viral panic over predictions of the next 'big one' ...

A lightly populated stretch of Alaska’s southern coast was under a tsunami warning after the magnitude 7.3 quake was felt ...

Google’s Android Earthquake Alerts program is a globe-spanning earthquake early-warning system that uses billions of phone ...

A 4.3-magnitude earthquake jolted a lake shoreline Friday, July 11, in Southern California, the U.S. Geological Survey reported. Then dozens of smaller quakes followed. The 6.5-mile-deep quake hit ...

On July 21, 1952, a magnitude 7.5 earthquake in Kern County was strongly felt in the Valley, shaking residents ...

The earthquake, with a preliminary magnitude of 7.3, struck south of Sand Point, a community of about 600 people on Popof ...

A minor, 3.7-magnitude earthquake struck in Southern California on Thursday. It was followed by a larger, 4.3-magnitude quake nearby a few hours later, according to the United States Geological Survey ...

California officials overseeing the $21 billion fund that was expected to protect utilities and their customers from the cost ...