When a large volcano erupts, as Mount Spurr appears close to doing about 80 miles from Anchorage, Alaska, it can ...

The finest particles pose the greatest risk because they can penetrate deep into the lungs and cause death by asphyxiation in the worst cases. Mild, short-term symptoms often resolve with rest.

The AVO predicts this eruption will be similar to those in 1953 and 1992, which saw,' one or more explosive events, each lasting as long as a few hours, would produce ash clouds carried downwind for ...

Mount Spurr volcano, near Anchorage, Alaska, is showing increased activity. Scientists have detected a swarm of earthquakes ...

Mount Spurr in Alaska might erupt soon, triggering an ash cloud shrouding Anchorage and other communities. The summit crater ...

Locals are rushing to buy everything from tape, to goggles, earplugs, N95 masks and essential supplies like food and water.

Residents in Anchorage, Alaska, prepare for a possible Mount Spurr volcano eruption as scientists warn of rising seismic ...

There are as many as 169 volcanoes that are deemed as 'active' across America's 50 states, but it is Alaska's 11,070-ft-high ...

When Mount Spurr erupted in 1992, ash spewed some 50,000 feet into the air and blanketed much of the Matanuska-Susitna Valley ...

The U.S. Geological Survey’s office building in Hilo also is the temporary home of the agency’s Hawaiian Volcano Observatory, ...