Figure 3.
Rupture time history of the mainshock. (a) Rupture snapshots of the 0918 mainshock. Three reference rupture fronts with constant rupture speed Vr = 3.5, 2.5, and 1.5 km/s are shown with pink, blue and gray contours, respectively. Black rectangular indicates the three asperities. (b) The moment rate functions. The dark gray area shows the total moment release time history of the mainshock, and the light gray area indicates the moment released from the LVF. The moment rate function of the foreshock is shown with the red line, and the yellow line indicates the moment released from LVF. Five time intervals of the seismic moment releases are marked with T0, T1, T2, T3, and T4.