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Earthquake location and causes. Location of earthquakes around the world This map shows the plate boundaries of the Earth. All earthquake and volcanic eruptions happen along these boundaries. This is why we do not get earthquake activity in the UK. What causes earthquakes? The different sections of plates are constantly moving due to convection caused by the heat of the Earth’s core. When the plate move they cause earthquakes, volcanic eruptions and tsunamis. When the plates collide massive amounts of pressure build up. When the strain becomes too much the pressure is released and this causes the Earth to shake. Movement of plates: Plates move in 3 ways: o Constructive boundaries – This is where plates move apart and magma comes up through the gap that is left. It constructs new land between the plates. o Destructive boundaries – This is when the plates move towards each other. This causes one of the plates to be forced under the other and therefore land is destroyed as it is forced into the mantle. Large earthquakes are common at these boundaries. o Transform boundaries – This is when plates move along side each other. The plates stick together and then energy builds up. When the plates finally break apart an earthquake is caused. Earthquake location and causes. Location of earthquakes around the world This map shows the plate boundaries of the Earth. All earthquake and volcanic eruptions happen along these boundaries. This is why we do not get earthquake activity in the UK. What causes earthquakes? The different sections of plates are constantly moving due to convection caused by the heat of the Earth’s core. When the plate move they cause earthquakes, volcanic eruptions and tsunamis. When the plates collide massive amounts of pressure build up. When the strain becomes too much the pressure is released and this causes the Earth to shake. Movement of plates: Plates move in 3 ways: o Constructive boundaries – This is where plates move apart and magma comes up through the gap that is left. It constructs new land between the plates. o Destructive boundaries – This is when the plates move towards each other. This causes one of the plates to be forced under the other and therefore land is destroyed as it is forced into the mantle. Large earthquakes are common at these boundaries. o Transform boundaries – This is when plates move along side each other. The plates stick together and then energy builds up. When the plates finally break apart an earthquake is caused.