A volcanic eruption in southwest Iceland has prompted evacuations, including at nearby tourist sites like the Blue Lagoon.

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, but it’s definitely worth watching.

From Mount St Helens in Washington to the Mauna Loa in Hawaii, these structures have a complicated history of disaster and beauty.

Samples of extremely small crystal clots, each polished to the thickness of a human hair or thinner, have revealed information about the process ...

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

A 7.3-magnitude earthquake struck off Alaska’s coast near Sand Point on Wednesday, triggering a tsunami warning for parts of ...

A tsunami advisory issued for south Alaska and the Alaska Peninsula was cancelled Wednesday afternoon hours after a massive 7 ...

The Alaska-Aleutian subduction zone ranks among the world's most seismically active regions, having generated more magnitude 8 and above earthquakes in the past century than any other area on the ...

An official said the eruption near Reykjavik, the 12th in four years from the same volcanic system, posed no threat to people ...