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The Great Chilean Earthquake : An Earthquake

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The Great Chilean Earthquake An earthquake is the shaking of the earth by seismic waves radiating away from the disturbance, most commonly fault movement. The great Chilean earthquakes origin was of the coast of Chile at a subduction zone, referred to as a hot spot for seismic activity. A subduction zone is a region on the crust of the earth where two tectonics plate meet one another. The area where the two plates meet is called a plate boundary. When two plates meet at a subduction zone, they converge towards each other, and one these tectonic plates come into contact with each other, one bends and slides underneath another, resulting in one curving down to the mantle. In this circumstance when subduction is taking place the denser plate is the one that sinks beneath the other. On the earth’s surface there are two main types of crust; the oceanic and the continental. The continental isn’t as dense as the oceanic making it slide above while the oceanic subducts down, in a convection motion to recycle itself then be remade when it pushes itself up. The place the denser medium goes towards is the mantle that consists of molten rock and it accounts to 84% of earths volume. Subduction only takes effect when two plates of different density collide, for if two continental crusts converge and push together neither will subduct, so it will be like a car crash where the two mediums smash into each other but neither subducts, as an example of this event look to the Himalayas that were

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