Fig. 6

Foreshocks, coseismic slip, and afterslip of the M_w 7.3 largest foreshock (Hino et al. 2014) superimposed on the fault distribution map. Green, red, and black stars represent epicenters of the M_w 9.0 mainshock, the M_w 7.3 largest foreshock, and the M_w 6.6 s largest foreshock of the 2011 Tohoku-Oki earthquake, respectively. Aqua stars represent the epicenters in February, 2011 foreshocks; the red plus signs indicate the epicenters of the seismicity from February 13, 2011 to the occurrence of the M_w 7.3 foreshock (Ito et al. 2013); and the black dots are the epicenters of foreshocks that occurred between the occurrence of the M_w 7.3 foreshock and the mainshock (Hino et al. 2014). The regions with more than 30 m coseismic slip in the mainshock (Iinuma et al. 2012), more than 1 m coseismic slip in the largest foreshock, and more than 0.3 m afterslip following the largest foreshock (Ohta et al. 2012) are shaded in pink, green, and blue, respectively