Fig. 3

a Slip distribution of the double-fault model (vertical view). The solid lines A–A′ and B–B′ indicate Fault a and Fault b. The dashed line C–C′ indicates the profile location of aftershock distribution (in Fig. 3c) and Coulomb stress change results (in Fig. 8). b Slip distribution of the double-fault model (cross-sectional view). c The correlation between the fault planes and the aftershocks. (c1)–(c3) are plotted according to the lapse time from the main shock. The gray stars in (b1) and (c1) indicate the location of the hypocenter of the main shock