One of the most explosive volcanoes in U.S. history began its eruption with a trickle, not a blast. Mount St. Helens' gas-laden magma oozed into the cone before the mountain finally erupted in 1980.

Volcanologist Martin Mangler explains how volcanic eruptions work to push lava into the air. Listen on the The Conversation’s ...

A 2021 satellite photo shows an unusual series of concentric cloud rings that appeared directly above an erupting volcano on ...

Hawaii's Kīlauea volcano shot out lava for the 49th time that we know of.

Scientists have uncovered a long-missing piece of the volcanic puzzle: rising magma doesn’t just form explosive gas bubbles when pressure drops—it can do so simply by being sheared and “kneaded” ...

The Titan Ridge Volcano is erupting in the Bismarck Sea, sending ash and smoke into the sky and prompting authorities to warn of possible tsunamis in the area.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A rare fireball meteor ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...

Since 2000, specialists at the National Museum of Natural History have produced the world’s foremost report on active volcanoes Sally Sennert Did you know that there are between 40 and 50 volcanoes ...

Terrified tourists were seen scrambling for cover as they were pelted with lava from an exploding volcano in Guatemala.

A volcano that slept for more than 100,000 years before erupting is blowing up our understanding of when volcanoes should be defined as active or extinct. Volcanologists officially classify sleeping ...

After 15 months of intense and disruptive earthquakes on Iceland’s Reykjanes Peninsula, the region finally let off some pressure. On March 19, lava roared out of the ground in the uninhabited valley ...