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The boundary between the crust and upper mantle usually identified by an increase in the velocity of propagation of seismic waves.
Industry:Natural environment
A measure of the energy released in an earthquake determined by strength of the fault and the area and amount of slip.
Industry:Natural environment
The frequency at which an elastic system vibrates when set in motion by a single pulse.
Industry:Natural environment
A fault in which blocks of rock slip straight down; also called dip-slip faults.
Industry:Natural environment
A stage in a periodic motion measured with respect to a reference and expressed in angular measure.
Industry:Natural environment
A large unit of the earth's lithosphere that moves relative to other plates and the interior of the earth.
Industry:Natural environment