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University of Utah
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A continuous shaking movement of the ground.
Industry:Natural environment
A type of deformation in which a material behaves like an elastic solid when it is rapidly strained on time scales of seconds to hours, but deforms viscously by plastic flow over long periods of geologic time.
Industry:Natural environment
An earthquake related to volcanic activity.
Industry:Natural environment
The upper surface of an unconfined body of ground water.
Industry:Natural environment
A plot of the displacement produced by a seismic wave as a function of time.
Industry:Natural environment
The distance between two adjacent crests or troughs of a wave.
Industry:Natural environment
A seismic pulse usually consisting of 1½ or 2 cycles.
Industry:Natural environment
A fault in which blocks of rock slip sideways past each other; also known as tear faults, strike-slip faults, or, when especially large, transcurrent faults.
Industry:Natural environment
The time rate of change of velocity of a reference point during an earthquake. Commonly expressed in percentage of gravity.
Industry:Natural environment
The record from an accelerograph showing ground acceleration as a function of time.
Industry:Natural environment