Shiveluch volcano (IMAGE)
Caption
Shiveluch volcano has had more than 40 violent eruptions over the last 10,000 years. The last gigantic blast occurred in 1964, creating a new crater and covering an area of nearly 100 square kilometers with pyroclastic flows. But Shiveluch is actually currently erupting, as it has been for over 20 years.
Credit
Michael Krawczynski, Washington University in St. Louis
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