title: Regional differences in the phase velocity and the quality factor q of mantle rayleigh waves.
abstract: The phase velocity and the quality factor (Q) of mantle Rayleigh waves from the great Kurile Islands earthquake of 1963 have a close azimuthal correlation with each other and differ considerably among different paths. Serious error may be introduced in the interpretation of observed regionality in phase velocity if regional differences in Q are ignored.
authors.forename: I
authors.initials: I
authors.lastname: Nakanishi