Fig. 11

Comparison between the distribution of interplate sedimentary units and the slow earthquake distribution in the Japan Trench. a Map view of the interplate sedimentary units and slow earthquakes. The distribution of the interplate sedimentary units is from Tsuru et al. (2002). For an explanation of the symbols, refer to the legend in the figure. The slow earthquakes, megathrust earthquakes, and small repeating earthquakes are from Fig. 9. b–d Seismic reflection images of survey line 3, 6, and 14, respectively. The slip behavior of the plate interface is indicated in the images. The seismic reflection images are adapted from Tsuru et al. (2002). Unit U in d indicates the channel-like sedimentary unit