Summary
A comparison is made between the multimode Rayleigh wave response to dip-slip motion along a vertical fault plane in structures with and without a low-velocity channel. The use of the higher mode amplitude spectra is proposed as a discriminant between the two types of structure.
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Panza, G.F., Calcagnile, G. Comparison of the multimode surface wave response in structures with and without a low velocity channel (part I: Dip-slip sources on a vertical fault plane). PAGEOPH 112, 583–596 (1974). https://doi.org/10.1007/BF00877295
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DOI: https://doi.org/10.1007/BF00877295