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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Blind study site assessment of shear-wave velocity at Kumamoto City, Japan, using direct-fitting SPAC methods

Fig. 6

a Green: Vs depth profile for the Preferred model. Blue: Vs depth profile for the authors’ BP1 model. b Geological log and SPT log (Oyo 2020) supplied to blind project participants after submission of individual analyses of surface-wave data. Diagonal blue lines indicate top and bottom of a soft low velocity later shown independently by this blind interpretation and by the borehole SPT log. c Green and blue: The Preferred model and the authors’ best-fit BP1 Vs profiles are plotted for depths 0–800 m. Black dashed: an alternative interpretation made in this paper using Rayleigh-wave fundamental-mode analysis only

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