This electronic supplement contains additional descriptions of the site characteristics and events in each region and category and of the ground-motion prediction equation (GMPE) model parameters for the earthquakes used in the main article. Tables S1 and S2, respectively, present the number of earthquakes in each faulting mechanism group and the number of strong-motion records in each earthquake group and site class. Table S3 contains the latitudes and longitudes at the corners of each approximate volcanic zone. Tables S4 and S5 list the ground-motion prediction equation (GMPE) model parameters. Figure S1 shows the distribution of earthquakes and records with respect to magnitude, fault-top depth, and source distance. Figure S2 presents the volcanic zones, and Figure S3 presents the increase in weighted log maximum likelihood. The locations of events with a normal faulting mechanism are presented in Figure S4. Figures S5 and S6 compare the within-site and between-site standard deviations, the total site standard deviations, and the within-event standard deviations. Figures S7–S20 present the between-event and within-event residuals for PGA, 0.5, 1.0, 2.0, 3.0, 4.0, and 5.0 s spectral periods.
Table S1. Number of events in each region and each focal mechanism group for all events from Japan.
Table S2. Number of records in each tectonic category and each focal mechanism group for all records from Japan.
Table S3. The latitudes and longitudes at the corners of each approximate volcanic zone.
Table S4. GMPE model parameters.
Table S5. GMPE model parameters.
Figure S1. The distribution of strong-motion records used in the present study with respect to (a) fault depth and moment magnitude and (b) the distribution of strong-motion records with respect to source distance and magnitude.
Figure S2. The distribution of active volcanoes (triangles) in Japan. The areas enclosed by the solid lines around the volcanoes are the volcanic zones.
Figure S3. The increase in the weighted maximum log likelihood after records from stations with inferred site class were removed is referred to as site information quality effect.
Figure S4. Locations of the shallow crustal earthquakes and upper-mantle events with a normal-faulting mechanism. Two of the four events in the Zhao, Zhang, et al. (2006) study occurred in almost the same location and therefore only three events are visible.
Figure S5. Comparison of (a) between-site standard deviations and (b) within-site standard deviations, estimated from within-event residuals for four site classes (SC).
Figure S6. Comparison of total site standard deviations, estimated from within-event residuals and the within-event standard deviation.
Figure S7. Distribution of between-event residuals for peak ground acceleration (PGA) with respect to (a) magnitude and (b) fault depth.
Figure S8. Distribution of within-event residuals for PGA with respect to (a) magnitude and (b) source distance.
Figure S9. Distribution of between-event residuals for 0.5 s with respect to (a) magnitude and (b) fault depth.
Figure S10. Distribution of within-event residuals for 0.5 s with respect to (a) magnitude and (b) source distance.
Figure S11. Distribution of between-event residuals for 1.0 s with respect to (a) magnitude and (b) fault depth.
Figure S12. Distribution of within-event residuals for 1.0 s with respect to (a) magnitude and (b) source distance.
Figure S13. Distribution of between-event residuals for 2.0 s with respect to (a) magnitude and (b) fault depth.
Figure S14. Distribution of within-event residuals for 2.0 s with respect to (a) magnitude and (b) source distance.
Figure S15. Distribution of between-event residuals for 3.0 s with respect to (a) magnitude and (b) fault depth.
Figure S16. Distribution of within-event residuals for 3.0 s with respect to (a) magnitude and (b) source distance.
Figure S17. Distribution of between-event residuals for 4.0 s with respect to (a) magnitude and (b) fault depth.
Figure S18. Distribution of within-event residuals for 4.0 s with respect to (a) magnitude and (b) source distance.
Figure S19. Distribution of between-event residuals for 5.0 s with respect to (a) magnitude and (b) fault depth.
Figure S20. Distribution of within-event residuals for 5.0 s with respect to (a) magnitude and (b) source distance.
Zhao, J. X., J. Zhang, A. Asano, Y. Ohno, T. Oouchi, T. Takahashi, H. Ogawa, K. Irikura, H. K. Thio, P. G. Somerville, et al. (2006). Attenuation relations of strong ground motion in Japan using site classification based on predominant period, Bull. Seismol. Soc. Am. 96, no. 3, 898–913.
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