Volcanic Unrest at Mount Spurr, Alaska (February 2025)

Summary:

Mount Spurr, a stratovolcano located approximately 75 miles west of Anchorage, Alaska, is exhibiting signs of increased volcanic activity, prompting close monitoring by the Alaska Volcano Observatory (AVO). The primary indicators are an increase in seismic activity, changes to the summit crater, and observations of fumaroles. While an eruption is not certain, volcanologists estimate a roughly 50-50 chance of an eruption at Crater Peak and are closely watching for additional signals that would indicate an increased likelihood. Past eruptions, particularly those in 1953 and 1992, demonstrate the potential for significant disruption to air travel due to ashfall.

Key Themes and Details:

• Increased Seis ...