SEANGWORLD FACT BRIEF · SEANGWORLDNEWS · 1 SOURCE
Satellite imagery on August 24, 2026, shows thermal activity and a lava lake at Mount Michael volcano on Saunders Island
On August 24, 2026, the NASA-USGS Landsat 8 satellite captured a clear image of Mount Michael volcano located on Saunders Island in the South Atlantic Ocean. The natural-color image with infrared overlay revealed heat from a persistent lava lake in the summit crater and a volcanic plume above the peak, indicating ongoing volcanic activity. Mount Michael is part of the South Sandwich Islands volcanic chain formed by tectonic plate subduction. Satellite data from Landsat, Sentinel, ASTER, MODIS, and VIIRS instruments over the past several years have consistently shown low-intensity activity and sulfur dioxide emissions from this volcano. The image was acquired as austral winter ended, during a temporary clearing of clouds near the Antarctic Circle. This volcanic activity has been previously studied and documented using satellite thermal anomaly analyses and gas emission data.
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Corroboration
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Facts
- Established fact
On August 24, 2026, Landsat 8 satellite captured an image showing thermal anomalies at Mount Michael volcano.
- Established factNASA Earth Observatory
Mount Michael volcano hosts a frequently active lava lake in its summit crater.
- Established fact
The image shows a volcanic plume and darkened snow on northern slopes, indicating ongoing activity.
- Established fact
Mount Michael is located on Saunders Island, part of the South Sandwich Islands volcanic chain formed by the South American plate subducting beneath the South Sandwich plate.
- Established factNASA
Long-term satellite observations indicate low-intensity volcanic activity and sulfur dioxide emissions at Mount Michael over recent years.
- Established factNASA Earth Observatory
Wave clouds and volcanic gas plumes were observed over Saunders Island on September 1, 2026, from satellite imagery, showing atmospheric interactions with the volcano.
Sources
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