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Fig. 5 | Earth, Planets and Space

Fig. 5

From: Peak ground motions and characteristics of nonlinear site response during the 2018 Mw 6.6 Hokkaido eastern Iburi earthquake

Fig. 5

Comparison of surface-to-borehole spectral ratios of horizontal component recordings during weak-motions (gray lines) and those during the mainshock (red lines) at KiK-net sites. The plots are arranged in order of decreasing horizontal vector PGAs in panels ap, respectively. Solid black lines denote mean spectral ratios for weak-motions, and dashed gray lines denote one standard deviation. The PGA in units of cm/s2, PGV in units of cm/s, Vs30 in units of m/s, DNL values, and fault-to-site distance (R) in units of km are also included for each site. See Fig. 3 for site locations

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