MEDC Volcano: Mt St Helens 0.0 / 5 ? GeographyRestless EarthGCSEAQA Created by: Jess.SimpsonCreated on: 12-05-16 18:44 When did the earthquake occur? 18th May 1980 1 of 18 What was the magnitude on the Richter scale? 5 2 of 18 What made it happen in terms of tectonics? Juan De Fuca Plate moved eastwards towards the North American plate (destructive pate margin) 3 of 18 Which was prioritized first; Rescuing survivors or sending aid to towns? Rescuing survivors 4 of 18 When was the ash cleared? 3 days after the erruption 5 of 18 When was it designated a National Park? 1982 6 of 18 What happened to the forest a while after the erruption? It was re-planted and the moonscape transformed 7 of 18 How many extra masks were sent in aid? 2 million 8 of 18 Where was the unstable bulge located? North Face 9 of 18 How many homes were destroyed? 250 10 of 18 How many people died? 57 11 of 18 What was the size of the crater created after the explosion? 1 mile by 500m 12 of 18 Within **km of the volcano every plant and animal died 25km 13 of 18 How much ash fell? 15cm 14 of 18 How many salmon died (estimate)? 12 million 15 of 18 What is a positive effect of the ash errupted? Improve the quality of the soil 16 of 18 How much was the damage? $100 million 17 of 18 Which industry was destroyed? Timber 18 of 18
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