by the Alaska Volcano Observatory
April 13, 2025 – Unrest continues at Mount Spurr volcano. Seismicity remains elevated with occasional small, shallow volcanic earthquakes detected beneath the volcano over the past day. No significant activity was detected in satellite or web camera views.
AVO (Alaska Volcano Observatory) continues monitoring activity at Mount Spurr for signals indicating that the volcano is moving closer to an eruption. Based on previous eruptions, changes from current activity in the earthquakes, ground deformation, summit lake conditions, and fumarolic activity would be expected if magma began to move closer to the surface. Therefore, if an eruption occurred, it would be preceded by additional signals allowing warning.
The volcano is monitored using local seismic, infrasound, web camera, and GNSS stations along with regional infrasound, lightning networks and satellite data.
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