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Mount St. Helens Researchers upgrade the chance of a mild to moderate volcanic eruption of Mount St. Helens to 70 percent — possibly occurring within days. The mountain in Washington state was the site of a catastrophic surprise eruption in 1980. Hear Ley Garnet of Oregon Public Broadcasting.
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Scientists Watch for Mount St. Helens Eruption

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Mount St. Helens

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Mount St. Helens had a small eruption in May of 1982. Lyn Topinka, USGS hide caption

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Lyn Topinka, USGS

An aerial view of Mount St. Helens from Sept. 26, 2004, shows its northern flank, crater, lava dome and new glacier. John S. Pallister, USGS hide caption

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John S. Pallister, USGS

Researchers upgrade the chance of a mild to moderate volcanic eruption of Mount St. Helens to 70 percent — possibly within the next few days.

Monitor Mount St. Helens

The mountain in Washington state was the scene of a catastrophic surprise eruption in 1980. Hear Ley Garnet of Oregon Public Broadcasting.