the gaseous envelope surrounding the earth; the air
a series of vibrations induced in the earth's crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating
a stationary location in Earth's mantle where magma melts through a tectonic plate
hot, melted rock below Earth's surface
(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
a person who studies rocks
the amount of energy released by an earthquake
the point where an earthquake starts
a physical feature on Earth's surface
hot melted rock that flows from a volcano
the outer layer of the earth
the point on Earth's surface directly above an earthquake's focus
an opening in Earth's crust through which lava may flow
the process of moving sediment from one place to another
a nearly melted layer of hot rock below Earth's crust
a giant wave caused by an earthquake on the ocean floor
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