Fig. 10From: Cause of destructive strong ground motion within 1–2 s in Mukawa town during the 2018 Mw 6.6 Hokkaido eastern Iburi earthquakeObserved and theoretical phase velocities of the Rayleigh waves at three sites. The black circles denote the observed phase velocities. The red solid line denotes the theoretical phase velocities for the estimated Vs structure model. a HKD126, b AOB, c MKW01. The gray solid lines denote the original observed phase velocitiesBack to article page