The two plates move away from each other due to convection currents in the mantle.
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What happens at a destructive plate margin?
The denser oceanic crust is forced under the continental crust and meets at the subduction zone.
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What happens at a conservative plate margin?
The two plates slide past each other in opposite directions, they snag and jolt which cause earthquakes.
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Why do volcanoes form at at destructive plate margins?
The oceanic crust is forced under the continental crust and when they meet at the subduction zone, the hot magma rises up through the cracks in the hard rock on the land and creates a volcano.
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What are 3 primary effects of the 2011 Japan Earthquake?
1) Tsunami 2) Shockwaves 3) Buildings shook
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What are 3 secondary effects of the 2011 Japan earthquake?
1) 3 nuclear meltdowns 2) 4.4m people left without electricity 3) 1.5m people left without running water
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What are 2 immediate responses to the 2011 Japan earthquake?
1) People ran for the hills 2) Over 116 countries responded with aid
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what are 2 long-term responses to the 2011 Japan earthquake?
1) 55 nuclear reactors where shut down for safety reasons 2) A year later, 330,000 homes had been costructed for the homeless.
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What are 3 primary effects of the 2015 Nepal earthquake?
1) Glaciers moved 2) Ground shook in himalayas 3) Tremors were felt in India
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What are 3 secondary effects of the 2015 Nepal earthquake?
1) Reconstruction was expensive 2) Reduction in tourism 3) some emergency hospitals didn't reach some people
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What are 2 immediate responses to the 2015 Nepal earthquake?
1) Emergency hospitals 2) Temporary shelters set up
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What are 2 long-term responses to the 2015 Nepal earthquake?
1) Reconstruction of infrastructure 2) Had to rehouse those who lost their homes
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Outline 4 methods for predicting an earthquake.
1) Sensitive seismographs 2) GPS in phones 3) Change in animals' behaviour 4) Map out suspicious patterns
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Outline 4 methods to prepare/plan for an earthquake.
1) Screw items down 2) Educate people 3) Get under a table 4) Have helicopters on standby
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Outline 5 methods for protecting buildings from an earthquake.
1) Earthquake resistant buildings 2) Earthquake survival kits 3) Springs in buildings 4) Field hospitals 5) Shock absorbant buildings
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How are volcanoes monitored?
1) Measuring the temperature 2) Amount of gas being produced by the volcano 3) seismometers
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What are 3 reasons why some people live near volcanoes?
1) some people have no choice as they can't afford any property anywhere else. 2) Volcanoes attract tourists so people can make an income out of this. 3) The lack of education in LICs - can't monit the volcano
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Other cards in this set
Card 2
Front
What happens at a destructive plate margin?
Back
The denser oceanic crust is forced under the continental crust and meets at the subduction zone.
Card 3
Front
What happens at a conservative plate margin?
Back
Card 4
Front
Why do volcanoes form at at destructive plate margins?
Back
Card 5
Front
What are 3 primary effects of the 2011 Japan Earthquake?
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