Enlarged seafloor bathymetry, offset of the canyon sidewall, and 3D seafloor bathymetry. (a) Seafloor bathymetry around Shionomisaki Canyon. The locations of cold seeps are denoted by the yellow star (Anma et al. 2011). (b) Offset of the canyon sidewall due to strike-slip (yellow dots). (c) 3D seafloor bathymetry showing outer ridge and WBSF (yellow arrowheads). The red arrowhead in panel (a) shows the sight angle of this figure.