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Associated Press
In this photo provided by the Alaskan Volcano Observatory, the Pavlof volcano erupts Thursday, May 16, 2013, as seen from the air from the southwest in Cold Bay, Alaska. Lava fountaining is visible near the summit, and steam and ash clouds rise from the northwest flank where a lava flow advances down the slope. (AP Photo/Alaskan Volcano Observatory, Rachel Kremer)

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