An explosion on Mount Spurr could generate massive cloud of ash, which could mess with airplanes and cause issues for humans.

A major U.S. city is under threat from a potential volcanic eruption after more than 20 earthquakes were recorded in Alaska.

The last time the volcano erupted was 1992 (Alaska Volcano Observatory/X) The potential risk of eruption has caused locals to stock up on masks, farm supplies, and more. Pet owners are buying ...

The 11,000-foot-tall volcano lies roughly 80 miles from Alaska's most densely populated city, and its eruption could cause international chaos.

Villages closer to Mount Spurr could be at risk of experiencing more ashfall than the Anchorage area if the volcano were to erupt.

When a large volcano erupts, as Mount Spurr appears close to doing about 80 miles from Anchorage, Alaska, it can release ... The finest particles pose the greatest risk because they can penetrate ...

If an eruption happens, it would likely occur at Crater Peak, shown in the background of this summit photograph. Photograph by Matt Loewen, Alaska Volcano Observatory, U.S. Geological Survey ...

The potential risk of eruption has caused locals to stock up on masks ... we would be drawing upon to make our interpretation,” Alaska Volcano Observatory scientist-in-charge Matt Haney told the ...