Attention in western Nevada: Preliminary results from earthquake and explosion sources
We present preliminary results from a study of the attenuation of regional seismic waves at frequencies between 1 and 15 Hz and distances up to 250 km in Western Nevada. Following the methods of Anderson and Hough (1984) and Hough et al. (1988), we parameterize the asymptote of the high frequency acceleration spectrum by the two-parameter model. We relate the model parameters to a two-layer model for Q/sub i/ and Q/sub d/, the freuqency-independent and the frequency dependent components of the quality factor. We compare our results to previously published Q studies in the Basin and Range and find that our estimate of total Q, Q/sub t/, in the shallow crust is consistent with shear wave Q at close distances with previous estimates of coda Q (Singh and Hermann, 1983) and LgQ (Chavez and Priestley, 1986), suggesting that both coda Q and LgQ are insensitive to near-surface contributions to attenuation.
- Research Organization:
- Scripps Inst. of Oceanography, University of California, San Diego
- OSTI ID:
- 6392714
- Journal Information:
- Geophys. Res. Lett.; (United States), Vol. 16:2
- Country of Publication:
- United States
- Language:
- English
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