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

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

Volcanoes in the United States that have been active since spring woke up, brushed themselves off, and then went back to ...

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

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

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

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