Fig. 6

Empirical scaling relationships of inner fault parameters between the combined area of asperities and the seismic moment (left), and between the flat amplitude of the acceleration source spectrum in the short period and the seismic moment (right). The thick lines represent the regression equations derived by Somerville et al. (1999) in the left panel and by Dan et al. (2001) in the right panel. The dashed lines represent extrapolation of regression equations. The dotted lines denote the factors of 1/2 and 0.5 for the average