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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
discriminant
Earth science; Seismology
A repeatable characteristic that can be used to distinguish a natural earthquake from an explosion. The most common discriminant is the ratio of short-period (1-s) P-wave energy (mb) to 20-s-period ...
singular value decomposition (SVD)
Earth science; Seismology
A matrix transformation technique used to find the inverse of a square matrix.
love wave
Earth science; Seismology
A major type of surface wave having a horizontal motion that is shear or transverse to the direction of propagation (travel). It is named after A. E. H. Love, the English mathematician who ...
viscoelastic material
Earth science; Seismology
A material which can behave as an elastic solid on a short-time scale and as a viscous fluid on a long-time scale.
displacements
Earth science; Seismology
A measure of the actual ground movement at the receiver, usually in microns. This is obtained by deconvolving a seismogram, removing the instrument response and rotating the seismogram into radial ...
refraction
Earth science; Seismology
(1) The deflection of the ray path of a seismic wave caused by its passage from one material to another having different elastic properties. (2) Bending of a tsunami wave front owing to variations ...
precursor
Earth science; Seismology
A change in the geological conditions that is a forerunner to earthquake generation on a fault.
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