Alaska Volcano Observatory

Lava continues to erupt slowly within the summit crater of Great Sitkin Volcano.  Nothing unusual was observed in partly cloudy satellite and webcam views. Seismicity was mostly quiet over the past day. 

The current lava eruption began in July 2021 and since then has filled most of the summit crater and advanced into valleys below. There have been no explosions at Great Sitkin Volcano since an event in May 2021. The volcano is monitored using local seismic and infrasound sensors, satellite data and web cameras, and regional infrasound and lightning networks.

Shishaldin Volcano continues to experience unrest with occasional small earthquakes detected throughout the day yesterday. Nothing unusual was observed in mostly clear satellite and webcam views. Lenticular clouds over the summit prevented any view of potential weak steaming.

Local seismic and infrasound sensors, web cameras, and a geodetic network are used to monitor Shishaldin Volcano. In addition to the local monitoring network, AVO uses nearby geophysical networks, regional infrasound and lighting data, and satellite images to detect eruptions.