Aerial photograph of Cleveland's August 2011 lava and summit crater. This lava dome was extruded sometime after July 7 when the last clear view of the summit area did not show this feature. The formation of the lava dome is consistent with thermal anomalies observed in satellite imagery since July 19, 2011. This dome is approximately 60 m in diameter in a 200m-wide crater.
Photograph courtesy of Dave Withrow, National Oceanic and Atmospheric Administration.
Image courtesy of the photographer and National Oceanic and Atmospheric Administration.
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