Table 1. Stress and Frictional Parameters for Test Problem Parameters Within Fault Area of 30 km times 15 km Outside Fault Area Nucleation Outside Nucleation Initial shear stress t0, MPa 81.6 70.0 70.0 Initial normal stress micronn, MPa 120.0 120.0 120.0 Static friction coefficient microns 0.677 0.677 infinite Dynamic friction coefficient micrond 0.525 0.525 0.525 Static yielding stress ts = -micronssn, MPa 81.24 81.24 infinite Dynamic yielding stress td = -microndsn, MPa 63.0 63.0 63.0 Dynamic stress drop Deltat = t0 - td, MPa 18.6 7.0 7.0 Strength excess ts - t0, MPa -0.36 11.24 infinite Critical slip distance d0, m 0.40 0.40 0.40