Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

A series of small earthquakes shook the San Francisco Bay Area on Thursday, according to the United States Geological Survey.

The strongest was a 3.4 magnitude quake that struck near San Bernardino, with more than 500 people feeling the quake.

An accumulation of weak to moderate earthquakes has been recorded around the Greek island of Santorini since 24 January. The ...

Seismic activity near Greek island has prompted evacuations to the mainland, but scientists cannot predict whether these earthquakes will get worse.

Experts from UNH explain how rare the 3.8 magnitude earthquake was and the likelihood of significant aftershocks.

The epicenter for all the quakes was about one mile east of Hayward, in San Francisco’s East Bay, according to the U.S.

Controversial Dutch researcher and seismologist Frank Hoogerbeets said on Monday that Greece is in volcanic and earthquake ...

On Feb. 7, 1812, there was perhaps the most notable of three large earthquakes that shook the New Madrid seismic zone that ...

A volcano near Alaska's most populous city is showing signs it could be headed toward an eruption, officials said.