New research suggests Mount Etna forms from deep mantle magma pockets, possibly classifying it as a rare “petit-spot” volcano ...

When volcanic eruptions make headlines, the images often depict fiery lava and towering ash clouds. But beneath Antarctica’s frozen landscape, volcanoes quietly shape Earth's climate in surprising ...

The Hawaiian Volcano Observatory is part of the U.S. Geological Survey, the science agency of the U.S. Department of Interior. Our job is to obtain and share science-based information about the ...

For more than 100,000 years, the Methana volcano in Greece appeared dormant. No lava, no explosions, no ash clouds. It ...

As global temperatures increase because of climate change, glaciers around the world are melting—contributing to rising sea levels, more extreme weather events, and habitat loss for all sorts of ...

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 ...

Io, the innermost of Jupiter’s Galilean moons, remains one of the most volcanically active bodies in the Solar System. Its relentless activity is driven by tidal forces that flex the moon’s interior, ...

Learn more about “Whale Hill,” a fossil site in Chile that may reveal how volcanic ash caused mass whale death and ...

The Moon has long been treated as a geologically dead world, a frozen relic that finished erupting billions of years ago. A wave of new data is now challenging that assumption, pointing instead to a ...

For more than 100,000 years, the Methana volcano in Greece appeared dormant. No lava, no explosions, no ash clouds. It appeared extinct – like many ...