Panorama of the larger of two lake-filled maar craters in Aniakchak. This maar partially drained--water level dropping about 4.65 m--sending a massive flood down a drainage along the eastern caldera wall that flowed into the Aniakchak River and altered its channel and bars for at least several miles downstream.
Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
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