A minor, 3.6-magnitude earthquake struck in Northern California on Monday, according to the United States Geological Survey.

A 3.6-magnitude earthquake was reported in Merced County, California on Monday evening, with no damage reported.

A 4.6-magnitude earthquake was reported in California on Saturday (June 28), according to the United States Geological Survey ...

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

An increase in seismicity—marked by frequent tremors—was observed recently at Alaska's Iliamna Volcano, which last erupted in ...

A magnitude 2.3 earthquake happened Thursday afternoon about 1.24 miles south--southeast of Madison in Lake County.

US Geological Survey carries out first resource assessment of government-owned lands since 1998 - before the shale revolution ...

A magnitude-6.1 earthquake struck deep off the coast of the southern Philippines on Saturday, the United States Geological ...

Hawaii's Kilauea volcano is erupting again in spectacular fashion, sending lava shooting 1,000 feet into the sky, according to the United States Geological Survey.