Abstract
CLEARY et al.1 have reported a number of diffracted S waves observed at distances from 99° to 128°. The most striking feature of their observations, as shown in their Fig. 1, is the great amplitude contrast of the diffracted SV and SH waves. While Cleary et al. have explained their observations in terms of the faulting orientation, there is a possible alternative explanation based on the results of several recent investigations.
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References
Cleary, J., Porra, K., and Read, L., Nature, 216, 905 (1967).
Teng, T. L., and Wu, F. T., Bull. Seismol. Soc. Amer., 58, 171 (1968).
Teng, T. L., and Richards, P. G., Trans. Amer. Geophys. Union, 49, 285 (1968).
Teng, T. L., and Richards, P. G., J. Geophys. Res. (in the press, 1968).
Rubinow, S. I., and Keller, J. B., J. Appl. Phys., 32, 814 (1961).
Nussonzveig, H. M., Ann. Phys., 34, 23 (1965).
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TENG, TL., RICHARDS, P. Diffracted SH and SV. Nature 218, 1154–1155 (1968). https://doi.org/10.1038/2181154a0
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DOI: https://doi.org/10.1038/2181154a0
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