USA, Washington:

35th Anniversary of the Eruption of Mount St. Helens (Washington State Geology News)

The months and days leading up to the May 18, 1980 eruption of Mount St. Helens were tense and filled with a sense of unknown. Few people really knew that there were giant volcanoes in their backyard, and fewer yet had ever seen such a volcano erupt.

As news and images of the eruption began to circulate, people across the world really began to understand what a volcano can do. The giant ash cloud rose in to the sky, blocking the sun, disrupting flights across the country, and raining shards of volcanic glass and ash across much of Washington and other western states.

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