Fig. 1From: Variations in precursory slip behavior resulting from frictional heterogeneityModel space of the numerical simulations. Only the left half of the model space is shown here because the system is bilaterally symmetric. Red and blue lines denote velocity-weakening zones (VWZs) and velocity-strengthening zones (VSZs), respectively. Cells (pairs of VWZ and VSZ) are numbered from #1 at the edge to #35 at the center of the fault. A wide VSZ is set at the edge of the model space. The region outside the model space is assumed to slip stably at the plate velocityBack to article page