Fig. 5

Map of the Futagawa and Hinagu fault planes. The solid red rectangles show the areas of the planes used in Fig. 6 projected onto the surface, and the red dashed rectangles indicate the source fault planes of the mainshock and foreshocks estimated by Kato et al. (2016) and GSI (2016). Active faults (Nakata and Imaizumi 2002) are plotted by the purple lines. Black circles denote the events (M _JMA ≥ 2.0) that occurred for 1 month following the foreshock. See the caption of Fig. 1 for explanation of the star and triangle symbols