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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
random vibration theory
Earth science; Seismology
A theoretical probabilistic formulation that links band-limited Gaussian noise spectra, representing the spectra of earthquake ground motions, with corresponding time history peak values.
focal mechanism
Earth science; Seismology
The direction and sense of slip on a fault plane at the point of origin (hypocenter) of an earthquake, as inferred from the first seismic waves which arrive at various locations; often, they are draw ...
arias intensity
Earth science; Seismology
A ground-motion parameter derived from an accelerogram and proportional to the integral over time of the acceleration squared. Expressed in units of velocity (meters per second or centimeters per ...
transform fault
Earth science; Seismology
A strike-slip fault connecting the ends of an offset in a midoceanic ridge, an island arc, or an arc-ridge chain. Pairs of plates slide past each other along transform faults.
benioff zone
Earth science; Seismology
A narrow zone, defined by earthquake foci, that is tens of kilometers thick dipping from the surface under the Earth's crust to depths of up to 700 kilometers. (Also Wadati-Benioff zone. )
strike-slip fault
Earth science; Seismology
A fault whose relative displacement is purely horizontal (e.g. San Andreas).
floating earthquake
Earth science; Seismology
A conceptual earthquake that is considered equally likely to occur at any point within a specified region.
