RMS Residual
RMS Residual :
The root-mean-square (RMS) travel time residual. This is displayed in seconds. This parameter provides a measure of the fit of the observed earthquake wave arrival times at various seismic stations to the arrival times predicted from the computed location of the earthquake. Smaller numbers reflect a better fit of the data. The value is dependent on the accuracy of the global or local seismic wave velocity model used to compute the earthquake location, the quality weights assigned to the arrival time data, the accuracy with which the arrival times of the seismic waves can be read from the seismogram, and the procedure used to locate the earthquake
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