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Mount St Helens
Photograph taken on October 1, 2004 of renewed volcanic activity within the crater formed by the eruption of Mount St. Helens in 1980. Recent activity, concentrated on the south side of the volcanic dome formed in the 1980s, includes uplift of a new dome from beneath the crater glacier and formation of vents by glacier melting and explosive eruptions of steam and ash. (Credit: USGS)
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