Seismology

Seismology

The study of earthquake, seismic sources, and wave propagation through the Earth.

Industry: Earth science

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Seismology

threshold

Earth science; Seismology

The smallest size of explosion that can be detected as an explosion.

gaussian noise spectrum

Earth science; Seismology

The spectrum of a time history whose sample values are generated by random selection from a statistical population that has a specified mean and standard deviation. The values (ordinates) have a ...

rupture velocity

Earth science; Seismology

The speed at which a rupture front propagates during an earthquake.

wave dispersion

Earth science; Seismology

The spreading out of a wave train due to each wave length traveling at its own velocity.

dispersion

Earth science; Seismology

The spreading out of a wave train due to each wavelength travelling with its own velocity.

standard deviation

Earth science; Seismology

The square root of the arithmetic mean of the squared deviations from the mean (the square root of the variance; see variance).

shear stress

Earth science; Seismology

The stress component parallel to a given surface, such as a fault plane, that results from forces applied parallel to the surface or from remote forces transmitted through the surrounding rock.