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'Dirty' Thunderstorms Produced by Volcanoes 1 (of 3)

Caption: Eastern flank of Augustine Volcano. A steam plume is visible extending northward from the summit. Photographed on Nov. 4, 2006. This image relates to article that appeared in the Feb. 23, 2007, issue of the journal Science, published by AAAS. The study, by Dr. Ronald J. Thomas and colleagues of Langmuir Laboratories, New Mexico Tech in Socorro, N.M., was titled "Electrical Activity During the 2006 Mount St. Augustine Volcanic Eruptions."

Credit: Photo provided by Jennifer Adleman Alaska Volcano Observatory/U.S. Geological Survey via Science-AAAS.

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