Abstract

Travel times of short-period Rayleigh waves arriving at Lubbock, Texas, from epicenters around the margin of the Gulf of Alaska are measured, and the travel times required for the continental segment of the paths are subtracted from the total travel times, giving the travel times required for the Rayleigh waves to cross the Gulf of Alaska. Comparison of the resulting dispersion data of Rayleigh waves crossing the Gulf of Alaska with the dispersion of those crossing the Pacific indicates no greater sediment thickness in the Gulf of Alaska than in the Pacific.

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