Spatial distribution of λ
. (a) Uniform stress in the entire area and (b) 20 subareas divided along and across the fault strike. The averaged values of λ
are shown by the color scale at the bottom right. The background color shows the S-wave velocity perturbation at a depth of 10 km (Okada et al. 2010; scale is shown at the bottom left). Broken black contour shows the coseismic slip estimated by Iinuma et al. (2009). Red triangles denote Quaternary volcanoes.