Mount Spurr

Current Context: Mount Spurr near Anchorage, Alaska, is showing increased volcanic activity with over 50 earthquakes reported in a week (April 2024), indicating possible magma movement. The Alaska Volcano Observatory (AVO) warns of a potential eruption.

About

• Type: Stratovolcano with a 5 km-wide caldera
• Location: 130 km west of Anchorage, Alaska
• Height: Highest volcano in the Aleutian Arc
• Last eruption: 1992 (caused ashfall in Anchorage)

Key Facts:

• Crater Peak: Younger dome (2,309 m), source of 1953 & 1992 eruptions
• Caldera origin: Formed by massive collapse in late Pleistocene/Holocene
• Hazard potential: Ash clouds may reach 50,000 ft, affecting air travel