Dependence of Fractional Standard Deviation of Seismic Yields on Number of Calibration Events

摘要

Fractional Standard Deviation (FSD) of yields for a suite of NTS events are predicted from calibration curves and are dependent on the number of events used in determining these curves. This results in an FSD history that allows us to estimate how well yield can be determined as a function of the number of calibration shots. The analysis is applied to both the Sandia Seismic Net and a Laser Strain Seismometer. The results for short period waves have deviations bound between 1.7 and 1.3 while long period FSD varies between 1.5 and 1.15. In the long period analysis, the asymptotic value of the FSD is reached much quicker than in the short period case. (ERA citation 08:039338)