SEANGWORLD FACT BRIEF · SEANGWORLDNEWS · 1 SOURCE
NASA Satellite Observes Volcanic Activity at Mount Michael with Persistent Lava Lake in August 2026
NASA's Landsat 8 satellite captured a clear image on August 24, 2026, showing persistent volcanic activity, including a lava lake, at the summit crater of Mount Michael on Saunders Island in the South Sandwich Islands. Infrared imaging indicated heat consistent with a lava lake, and a volcanic plume and darkened snow suggested ongoing activity. Satellite data over 30 years support that Mount Michael has a frequently active lava lake, one of few on Earth. Additional monitoring instruments show low-intensity volcanic activity and common sulfur dioxide emissions in recent years. A subsequent Landsat 9 image from September 1, 2026, showed wave clouds generated by winds passing over the island.
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Corroboration
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Facts
- Established fact
Mount Michael hosts a frequently active lava lake in its summit crater.
- Established fact
The image from Landsat 8 on August 24, 2026, showed heat from the lava lake and a volcanic plume.
- Established fact
Mount Michael is part of the South Sandwich Islands formed by the subduction of the South American plate beneath the South Sandwich plate.
- Established factA 2019 research analysis cited by NASA
Satellite thermal data spanning 30 years indicate persistent lava lake activity at Mount Michael.
- Established fact
Low-intensity volcanic activity and sulfur dioxide emissions have been detected for several years at Mount Michael by instruments such as MODIS, VIIRS, and NASA's Aura satellite.
- Established fact
Landsat 9 imagery from September 1, 2026, showed wave clouds formed by winds disturbed by Mount Michael’s peak.
Who is affected
Mount Michael volcano and Saunders Island in the South Sandwich Islands
Sources
1 SOURCE