Area 51 was rocked by an earthquake, sparking speculations of what might be happening underground at the top-secret facility.

Ten months of unrest at Mount Spurr could be a sign of an upcoming eruption from a side vent or, less likely, from the main ...

Scientists have detected several thousand earthquakes, the vast majority of them with small magnitudes, in just over two ...

A magnitude 4.1 earthquake struck off the Northern California coast after midnight on Tuesday, the U.S. Geological Survey said. Several smaller quakes followed.

A South Carolina ghost story could have a very earthly explanation. Starting in the 1950s, folks in the Summerville, S.C., area began reporting sightings of strange balls of light floating down a ...

As you might have guessed, given that Hough is a seismologist for the USGS, the study she and her team recently published in ...

The United States Geological Survey said there was a 2.8 magnitude shaking of the ground near the highly classified Area 51 ...

A 2.8 magnitude quake hit East of Amargosa Valley near the highly classified Area 51 base in Nevada, around 50 miles from the ...

A magnitude 3.0 earthquake shook the San Bernardino area Monday morning, according to the U.S. Geological Survey.

Although Greece is no stranger to earthquakes, seismic activity of such frequency and intensity without having been preceded by a major quake is unusual, seismologists say.