Five more explosive eruptions of Mount St. Helens occurred in 1980 (after May 18), including this spectacular event of July 22. This eruption sent pumice and ash 6 to 11 miles (10-18 kilometers) into the air, and was visible in Seattle, Washington, 100 miles (160 kilometers) to the north. The view here is from the south.

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Five more explosive eruptions of Mount St. Helens occurred in 1980 (after May 18), including this spectacular event of July 22. This eruption sent pumice and ash 6 to 11 miles (10-18 kilometers) into the air, and was visible in Seattle, Washington, 100 miles (160 kilometers) to the north. The view here is from the south.

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Keywords: 100, air, miles, seattle, visible, washington