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Earth, Planets and Space
Fig. 16 | Earth, Planets and Space

Fig. 16

From: Unified approach for evaluation of horizontal site amplification factors with special reference to history of studies on the effects of surface geology on seismic motion

Fig. 16

Examples of spectral shapes of WSRh and WSRv at one site outside of a basin and two sites inside of a large basin (OSK006 is close to the shoreline of Osaka Bay and TKYH02 is on the west of Tokyo with a borehole sensor at the depth of 2753 m). “Original” means those from the observed wHSAF and sHSAF, whereas “Estimation” does those interpolated spatially by the two-step interpolation scheme described in Nakano and Kawase (2021b). As seen in Fig. 15, the amplitudes of the low-frequency WSRv tend to be larger than those of WSRh at the sites inside a large basin

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