Volcanoes that dominate postcards and disaster movies are often the ones we can see, their peaks etched against the sky. Yet some of the most consequential volcanic threats on Earth are hidden under ...

Volcanoes are often judged by the size of their eruptions, but volcanologists measure danger ...

Dozens of people have died, hundreds are missing and many more homes were destroyed after separate volcanic eruptions in Hawaii and Guatemala that made headlines worldwide in recent months. And ...

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 ...

Some of the world’s most beautiful wonders are also its most dangerous. From toxic lakes to active volcanoes, these places ...