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.

While the likelihood of an eruption without additional warning is currently low, the volcano poses hazards for recreators on Mount Spurr. That is due to elevated carbon and sulfur dioxide levels ...

Alaska, Hawaii and areas along the mainland West Coast would be at risk if an earthquake erupts along the Cascadia subduction ...