Slow Lava Eruption Continues at Great Sitkin Volcano
Slow Lava Eruption Continues at Great Sitkin Volcano
US · Published Sep 21, 2026
The Great Sitkin Volcano in Alaska continues to experience a slow eruption of lava within its summit crater, according to the US Geological Survey (USGS).
The eruption, which began in July 2021, has filled most of the summit crater and extended into nearby valleys.

Impact & Risks

The ongoing eruption poses localized risks, including potential lava flow impacts and air quality issues from volcanic gases. However, the absence of significant seismic activity and explosions since May 2021 suggests a relatively stable situation. The USGS continues to monitor the volcano using advanced technologies, including seismic sensors, satellite data, and infrasound networks.

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