Mt St Helens


	Mt St Helens
	Causes Washington, 18th May 1980 Minor earthquakes, Bulge developed Landslide Explosion of gas & ash, covered 25km Ash cloud 20km high	Effects PRIMARY 57 people killed 1 billion dollars lost SECONDARY Fires Rivers blocked Homeless people Food shortage Loss of crop
	Overall summary Vegetation lost, still erupting , Created volcanic national park, Tourist attraction.

Vegetation lost, still erupting , Created volcanic national park, Tourist attraction.

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