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a break in earths crust along which rocks move


point on the surface of earth that is right above the focus of an earthquake


thickest layer of the earth found just below the crust


a mountain that forms when red-hot melted rock flows through a crack onto earth's surface


earths outer layer which includes the rock of the ocean floor and large areas of land


continent size slab of earths crust and upper mantle


the rocky opening in a volcano that which magma rises toward the surface


the dense center of earth which is a ball mostly made of two metals


a vibration or shaking of earth's crust

magma chamber

an underground pool that holds magma below a volcano


a large basin formed at the top of a volcano when the top falls in on itself


melted rock that reaches earth's surface


the point underground where the movement of an earthquake first takes place


an instrument that records earthquake waves


melted rock inside earth

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