When volcanoes like Alaska’s Mount Spurr erupt, the ash can damage people’s lungs, smother crops and kill animals, and the ...

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

Scientists have found previously undocumented ash deposits buried beneath the Lava Creek Tuff in Wyoming — and at least one ...