Figure 6

Effects of the weakened zone beneath the volcanic arc on postseismic displacements. Model results are presented at 2 years after the earthquake. (a) Surface displacements. Black arrows and color contours are horizontal and vertical displacements, respectively. (b-d) East, North, and vertical displacement components along a surface line shown as a thick red line in (a) are plotted in (b), (c), and (d), respectively. Red lines denote model-predicted displacements. Black cross represents the residual of GPS observations and displacements produced by the reference VE model as shown in Figure 3. Thin dashed lines outline the location of the modeled weak sub-arc zone.