When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ever-present geological threat: volcanoes. While you might associate ...

An eruption could impact the most populated city in Alaska. An active volcano near Alaska's most populated city could be on the brink of eruption, according to scientists who are constantly monitoring ...

It was the 38th eruption since the current series began in December 2024.

California has seven active volcanoes, each with a unique eruption history, categorized by type and threat level. The USGS monitors these volcanoes, providing information to authorities and the public ...

Lava flows create a map-like pattern on black basalt rocks at Iceland’s Fagradalsfjall volcano, which erupted in March 2021 for the first time in nearly 800 years. On June 2, 2025, Italy’s Mount Etna, ...

Volcanic eruptions can have dramatic consequences. But how can we anticipate this phenomenon, which unfolds up to tens of kilometres beneath the surface? A team from the University of Geneva (UNIGE), ...

A global early-warning system strives to keep aircraft safe from volcanic eruptions. Mark Piesing A small aircraft flies over the Bardarbunga volcano as it spews lava and ash in southeast Iceland. The ...

Smoke billows from the mouth of Mt. Shasta like a thunderous cough. Within moments, clear skies turn gray, and the sun vanishes behind thick, shifting layers of volcanic gas and ash. Visitors snap ...