Figure 12
From: Lg wave propagation in the area around Japan: observations and simulations
Attenuation functions of Lg wave along profiles A and B. Comparison of the attenuation functions of the maximum amplitude of the Lg wave of 1 Hz for the synthetic seismogram derived from the FDM simulation as a function of distance from the hypocenter along profile A (blue circles) and along profile B (red circles). The attenuation function for a laterally homogeneous flat-crust model is also shown (green circles). The theoretical attenuation curves for the Lg wave in anelastic media (Qs = 1000, 400, and 200) is also displayed by solid lines.