Restless Earth 0.0 / 5 ? GeographyNatural hazardsGCSEAQA Created by: JessboddeyCreated on: 17-01-16 20:55 Date of Mount St Helens 18th May 1980 1 of 22 Plate boundary of Mount St Helens Destructive 2 of 22 Plate names where Mount St Helens is located North American and Juan de Fuca 3 of 22 Predict method X2 Monitor gas levels seismometers 4 of 22 Prepare mathod X3 Evacuate exclsuin zone emergency supplies 5 of 22 Protect method X2 Cool lava divert flow 6 of 22 Benfit of living near a volcano X3 Geothermal power fertile soil tourism 7 of 22 Differences between continental and oceanic crust Density and renewablity 8 of 22 Where are oceanic trenches found Oceanic crust underneath continental at a destructive plate boundary 9 of 22 How are fold mountains formed 2 continental plates collide and buckle upwards 10 of 22 Shield volcano shape Low and wide base 11 of 22 Composite volcano shape Steep, tall and narrow 12 of 22 Shield volcano qualities Runny lava and ash, non violent but frequent eruptions 13 of 22 Composite volcano features Thick lava and ash, violent and infrequent eruptions 14 of 22 Shield volcano pm Constructive 15 of 22 Composite volcano pm Destructive 16 of 22 Supervolcano example and location Yellowstone in America 17 of 22 Supervolcano appearance Caldera, above a hot spot 18 of 22 Short term volcano effect Pyroclatic flow and poisonous gases 19 of 22 Long term volcano effect Rebuild of homes and removal of ash 20 of 22 Mercalli scale measures? Amount of damage by eye witness 21 of 22 Richter scale measures? Strength and power 22 of 22
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