A restless volcano

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Restless volcano. This Feb. 10 satellite radar image shows the summit of Alaska’s Cleveland Volcano and a new lava dome within the volcano’s summit crater (which is about 200 meters across). The weekly bulletin of the Smithsonian’s Global Volcanism Program reports elevated surface temperatures consistent with such a lava dome were detected in the crater with infrared satellite imagery on April 4. (Image courtesy AVO/USGS)

 

 

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