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Earth, Planets and Space
Fig. 9 | Earth, Planets and Space

Fig. 9

From: Estimation of source, path, and site factors of S waves recorded at the S-net sites in the Japan Trench area using the spectral inversion technique

Fig. 9

Comparison of the site amplification factors (red lines) obtained from the spectral inversion with the theoretical amplification factors (blue lines) using the J-SHIS subsurface velocity model. The grey lines denote the site factors corresponding to each earthquake deduced by dividing the original spectra by the source spectrum of corresponding earthquake and path factors. The plots a, b, c, d, e, f, g, h, and i correspond to sites, namely, S3N26, S3N25, S3N24, S3N23, S3N22, S3N21, S3N20, S3N19, and S6N12, indicated in each panel (see Fig. 1 for the location of the sites). The number of earthquake records (N) used in the spectral inversion and the depth to the seafloor (D) are indicated for each site. See Additional file 4 for the J-SHIS model at the sites mentioned above

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