The Alaska Volcano Observatory said signs indicated a Mount Spurr eruption was likely, though not certain, in the weeks or months ahead.

Mount Spurr near Anchorage is emitting dangerous gases and experiencing unrest, signs that it is likely to erupt in coming weeks or months.

Alaska’s Mount Spurr, a snow-covered volcano 75 miles outside Anchorage, is showing signs it could erupt soon, experts warned. Scientists at the Alaska Volcano Observatory said the volcano will likely erupt in the coming weeks or months,