Great Sitkin Volcano Continues Slow Lava Dome Growth
Great Sitkin Volcano Continues Slow Lava Dome Growth
US · Published Sep 28, 2026
• The Great Sitkin Volcano in Alaska is experiencing ongoing slow lava dome growth within its summit crater.
• The eruption, which began in July 2021, has filled most of the summit crater with lava and extended into nearby valleys.

Impact & Risks

The slow eruption poses limited immediate risks to nearby areas, as no explosive activity has been recorded since May 2021. However, the continued growth of the lava dome could lead to potential hazards, including localized lava flows and ash emissions if activity intensifies. The volcano is being closely monitored using seismic, infrasound, and satellite data to detect any changes in activity.

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