Fig. 4
a Schematic view of the medium with a shallower elastic layer and deeper viscoelastic layer. The viscoelastic layer is limited to depthe(x) < Z < min{depthp(x), 170.0 km}. b Distributions of the discretized viscoelastic cells in the X and Y directions, with the depthe indicated by specific colors. Each dot indicates the location of the subfault midpoint, which is distributed in the X and Y directions, although multiple subfaults in the Z direction are set at each location up to min{depthp(x), 170.0 km}. The red rectangle corresponds to the surface projection of the mainshock fault