Fig. 5
Model space and source geometry employed in the numerical simulation. a Model space of 16 × 16 × 12 km3 consisting of two layers for numerical simulation. Station is located at (x, y, z) = (8, 8, 0). b Source distribution applying horizontal force at a depth of 5.60–8.05 km. c Sketch of source location. Bold solid line and red dots show allowable source locations and distributed sources. d The direction of applied horizontal force is rotated with an interval of θ = 10°