Mt. Etna, Europe’s tallest active volcano, erupted again Friday evening on the Italian island of Sicily, sending ash and lava ...

Ash from the 1912 Novarupta eruption periodically hits the west side of Kodiak Island, Larsen Bay and Karluk, roughly 65 ...

Volcanoes inspire awe with spectacular eruptions and incandescent rivers of lava, but often their deadliest hazard is what quietly falls from the sky.

When a large volcano erupts, as Mount Spurr appears close to doing about 80 miles from Anchorage, Alaska, it can release enormous volumes of ash. Fine ash can infiltrate the lungs of people and ...

A restive Philippine volcano has erupted briefly on a central island, sending a 2.4-mile plume of ash and debris into the sky and forcing authorities to suspend classes in four villages due to ...

A volcano in the central Philippines erupted early Tuesday morning, sending a plume of ash about 2.5 miles into the sky and forcing authorities to suspend school in four villages due to ashfall.

Ice age triggered by volcanic ash from three massive eruptions that lowered global temperatures may have caused the Roman Empire's collapse. Fossilized feathers of a 30,000-year-old vulture ...

Kilauea ash (top) was deposited where the bloom occurred. Credit: W. Cheah.

A volcano in the central Philippines erupted early Tuesday morning, sending a plume of ash about 2.5 miles into the sky and forcing authorities to suspend school in four villages due to ashfall.