Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

State volcanologists on Thursday afternoon monitored a minor phreatic eruption at restive Taal Volcano in Batangas.

Closing Mauna Loa and three other U.S. sites that track greenhouse gases would disrupt a decades-long record of the planet’s ...

The dogged search for a bird that many people figured had gone extinct included torrential rains, washed-out bridges, swine ...

Recent volcanic activity across the Pacific Ring of Fire has raised alarms among scientists and volcanologists, with several ...

The vote marked the first time in decades that a president has successfully submitted such a rescissions request to Congress, ...

Standing near the base of Teakettle Mountain, where the Columbia Falls Aluminum Company’s contaminated Superfund property ...