US GEOLOGICAL SURVEY / SCIENCE PHOTO LIBRARY US GEOLOGICAL SURVEY / SCIENCE PHOTO LIBRARY
Augustine volcano. Infrared satellite image of an eruption of Augustine volcano, Alaska, USA. North is at top. In the infrared range the volcanic ash is white/purple, bare rock is grey, water is black and lava flows are red and yellow. The land and sea around the volcano has been coated with ash. Mount Augustine is about 1207 metres high and forms the largest island in Alaska's Cook Inlet. It erupted just after midnight on 27 March 1986, and sent an ash cloud 11,500 metres into the air. Image taken by the Thematic Mapper (TM) instrument on the American satellite Landsat 5 from an altitude of 700 kilometres.
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