Images of Cleveland's summit crater and lava dome, July 26, 2016. Top image is from a FLIR (Forward Looking InfraRed) camera, where warmer colors indicate hotter temperatures (scale is in Celsius); bottom image is a photograph of the summit crater, lava dome, and active fumaroles. AVO crew observed incandescence from the summit crater vent during this overflight.
Image courtesy of AVO/USGS.
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