SONOMA COUNTY, CA - Sunday afternoon, a preliminary 2.0 magnitude quake was recorded close to The Geysers, according to the U ...

An earthquake is caused by a sudden slip on a fault, according to USGS. Tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on an edge ...

Down in California, the San Andreas Fault marks the boundary where the North American and Pacific plates are sliding past ...

According to the U.S. Geological Survey (USGS), a magnitude 4.2 earthquake was reported off the coast of the Big Island just before 8:30 a.m. local time (2:30 p.m. ET). The earthquake was reported ...

The epicenter of the quake was about 30 miles to the southeast of Denver, just outside of Elbert, near Castle Rock.

The most widespread way is through Wireless Emergency Alerts (WEA), which sends loud alerts to all cellphones. If an ...

The quake’s epicenter lies in the remote waters between South America and Antarctica, where seismic activity is rare.

A major earthquake hasn’t struck any of California’s biggest cities in more than three decades, but the “Big One” is a matter ...

The one-minute drill was developed to teach people what to do when a large temblor strikes. If you have the MyShake app, your ...

The Great ShakeOut takes place on the third Thursday of every October. The event is part of a global earthquake drill.