Fig. 1

Coseismic slip distribution of the 2011 Tohoku-Oki earthquake estimated from inversions of data including seafloor geodetic data. Slip models by a Iinuma et al. [25] (contour interval: 10 m with 5-m contour line), b Ozawa et al. [3] (contour interval: 8 m with 2 m- and 4 m-contour lines), c Sato et al. [5] (contour interval: 10 m with 4-m contour line), and d Romano et al. [26]. In d, slip is shown by the color scale, and thin black contours indicate the interseismic coupling (from 10 % to 100 %, at 10 % intervals). The star represents the mainshock hypocenter