Newest Volcano Notice Including Shishaldin

Lava continues to erupt in the summit crater of Great Sitkin Volcano. Seismicity at the volcano is at a low level, with occasional small earthquakes occurring over the past day. Nothing unusual was observed in cloudy satellite and webcam views.  

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.

AVO has detected no activity in satellite, webcam, or seismic data since a small explosion at the summit of Korovin Volcano in the Atka Volcano Complex on October 29.

The Atka volcanic complex is monitored by local seismic and infrasound sensors and webcam, satellite data, and regional lightning detection instruments.

Unrest continues at Shishaldin with frequent small earthquakes detected over the past day. No significant activity was observed in satellite views. Weak steaming from the summit was observed in webcam images.  

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.