Mt St Helens Mt St Helens geography case study 4.5 / 5 based on 3 ratings ? GeographyRock landscapes and processesGCSEAll boards Created by: Jim HansonCreated on: 15-06-11 19:44 How much square miles did it destroy 250 1 of 9 What year did it erupt 1980 2 of 9 What plate boundary is it Destructive 3 of 9 How much did the bulge grew every day 1.5m 4 of 9 How many homes were destroyed 250 5 of 9 What was the date it erupted 18th May 6 of 9 How many people were killed 63 7 of 9 How big was the exclusion zone 17 miles 8 of 9 How big was the earthquake that made the bulge landslide 5.1 9 of 9
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