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What happened in mount st helens?

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Anonymous

∙ 15y ago
Updated: 8/16/2019

It erupted in 1980. Pyroclastic flows reached temperatures of 300 degrees Celsius , which would instantaneously kill people and destroy trees. It killed 53 people and is one if the most powerful eruptions in the last 50 years

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Wiki User

∙ 15y ago

What else can I help you with?