Source Function 1
Source Function 1 : The ground motion generated at the fault during rupture, usually as predicted by a theoretical model and represented by a time history or spectrum. The terms Brune spectrum, Aki spectrum, and Haskel model refer to varying representations of the source function, each based on different assumptions, as devised by the scientist for which the model is named. Strictly defined, the source function is a compact space-time history of the earthquake source process that will give the observed displacement waveforms as its convolution with the Green function for the wave propagation in the Earth and the instrument response of the recording instrument. See Aki and Richards (1980), Ben-Menahem and Singh (1981) Das and Kostrov (1988)
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