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Case study
Mt St Helens

· Washington USA

Date and Time of eruption-

· 18th May 1980

· 8:30 am

Description of the Eruption-

· minor earthquakes in March

· Bulge developed

· 18th may ash and steam

· landslide from bulge floods

· exploson of gas, ash and…

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Long term effects to the area (years later)-

· vegetation still has not fully returned

· total bill=1 billion dollars, to repair roads and bridges

· still erupting

Response to the disaster-

· created volcanic national park

· vegetation left to grow back naturally

· tourist attraction


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