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 	   A heavy plume of smoke and ash is released from Mount
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A heavy plume of smoke and ash is released from Mount St. Helens in the state of Washington.

May 13, 2010
A heavy plume of smoke and ash is released from Mount St. Helens in the state of Washington. The once-quiet land volcano has erupted many times since its initial outburst on July 22, 1980, giving scientists a solid chance to study natural phenomena.


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