Essentially, gas pistoning is a shallow, degassing-driven rise and fall of a lava surface. Often these pistons occur in ...

A minor, 3.3-magnitude earthquake struck in Northern California on Monday, according to the United States Geological Survey.

A 3.3-magnitude earthquake hit Northern California Monday evening near Los Banos, about 30 miles from San Jose. No damage ...

A small earthquake struck off the coast of Isla Vista on Thursday morning. It was 2.7 magnitudes, approximately 6 miles off the coast.

The Alaska earthquake was reported one day after a 5.7-magnitude earthquake was reported in Punta Cana on Tuesday (June 24), ...

A preliminary 3.0 magnitude earthquake struck near Dublin Monday night, according to the United States Geological Survey. The ...

Nearly two dozen state geological surveys depend heavily on federal funds. A proposed budget cut could slow or stop key ...