THE RELATIONSHIP BETWEEN SIGNAL AMPLITUDES AND SURFACE GEOLOGY AT THE TFSO EXTENDED ARRAY.
Technical data rept.,
GEOTECH GARLAND TX
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A study of 48 teleseismic P waves recorded at six LRSM sites in Arizona shows a wide variance in the relative signal amplitudes among sites, although the mean amplitude at each site correlates very well with the seismic impedance of the stratum directly supporting the seismometers. A test indicates that this variability cannot be simply ascribed to differences in source or azimuth, suggesting that the amplitudes are reacting sensitively to changes in signal frequency andor angle of incidence. Author
- Seismic Detection and Detectors