Earthquakes that jiggle Earth's middle layer may be more widespread than scientists thought. A new map of these mysterious deep earthquakes shows that they occur all around the world and that they may ...

Not all earthquake faults behave the same. Some stick and snap, causing earthquakes. Others move slowly over time.

On the surface, Antarctica’s vast ice sheet appears still and unchanging. But deep below, vibrations ripple through the frozen plain, transmitting the movements of Earth’s tectonic plates—and ...

Two earthquakes of a 7.0 or greater magnitude have struck within days of each other in Alaska and Japan, prompting worries another big temblor could be on the way. The first quake hit in Alaska on Dec ...

Earthquakes do happen in or near Florida, but they're rather rare. The closest fault line to the Sunshine State runs through the Caribbean Sea, just north of Puerto Rico. There have been more than 20 ...