Four earthquakes up to magnitude 4.0 shook Louisiana, raising questions about hidden faults, seismic risks, and the region’s rarely studied geology.

Each year, approximately 20,000 earthquakes occur globally. Even though most of these earthquakes are weak or occur in unpopulated areas, their destructive potential is clear. While richer nations ...

Earthquakes in the American state of Utah, the Soultz-sous-Forêts region of France or in the Dutch province of Groningen should not be able to occur even if the subsurface has been exploited for ...

Add Yahoo as a preferred source to see more of our stories on Google. That was not your imagination. Two earthquakes in less than a week have rattled more than the ground across North Jersey. Whenever ...

The most recent, a 1.2-magnitude tremor, hit about 2 ½ miles northeast of San Ramon at 4:05 p.m. Sunday, Nov. 23. Getty Images/iStockphoto A swarm of small earthquakes has been rattling a Bay Area ...

A swarm of a half-dozen earthquakes reaching up to magnitude 2.9 rattled San Ramon in California near San Francisco, the U.S. Geological Survey reports. The other quakes in Saturday's swarm ranged ...

The U.S. Geological Survey was still trying to unravel how an alert was sent Thursday morning for a nonexistent 5.9 earthquake outside Dayton, Nevada. A quake of that size wouldn't be implausible.

The other quakes in the Saturday, Dec. 21, swarm ranged from magnitude 1.3 to 3.0. Getty Images/iStockphoto A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near ...

An earthquake swarm is a series of small quakes that “may occur in a region for months without a major earthquake,” according to Britannica.. Getty Images/iStockphoto A swarm of a half-dozen ...