Fig. 13

source locations for numerical simulations of long-period ground motion amplification. The gray box represents the geographical area shown in b–f. The black solid line indicates the profile line E–E’ along which the simulated waveforms are presented in Fig. 14. b–f The logarithmic mean of the amplification factor for the basin model relative to the rock model at each period. The open triangles indicate the sites shown in Fig. 15