27 Terms
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Seismology
The study of earthquake, seismic sources, and wave propagation through the Earth.
Industry: Earth science
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Seismology
Linear philtre system
Earth science; Seismology
A means of describing seismic waves (ground displacement) in terms of the source function, propagating function and the instrument recording function.
Accelerometer
Earth science; Seismology
A sensor whose output is almost directly proportional to ground acceleration. The conventional strong-motion accelerometer is a simple, nearly critically damped oscillator having a natural frequency ...
Impulse response function
Earth science; Seismology
A mathematical representation of an impulsive signal. By taking the Fourier transform of the impulse response of the system, you obtain the frequency response function.
Thrust fault
Earth science; Seismology
A specific kind of reverse fault in which the dip of the fault is less than 45 degrees over much if not all of its length. It is characterised not so much by vertical displacement, but by horizontal ...
Ray theory
Earth science; Seismology
A standard set of approximations used to interpret seismic body-waves based on plane waves and/or spherical waves travelling through a medium.
Coefficient of friction
Earth science; Seismology
A property of rocks that describes the amount of stress that can be accumulated before two bodies of rock will slide past each other. It is related to the roughness or protrusions that the rocks ...
