Fig. 12
![Fig. 12](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40623-019-1081-z/MediaObjects/40623_2019_1081_Fig12_HTML.png)
Schematic structure model in and around the source region of the Hokkaido Eastern Iburi earthquake. All of the relocated aftershocks are plotted by yellow circles. A white circle is a location of the main shock. Delaminated lower crust is shown in dark blue. White arrows indicate of migration of fluids released from the subducted Pacific Plate by dehydration. S1: Sedimentary package in the fold-and-thrust belt; S2: Sedimentary layers in HB and TB; UC: Upper crust; LC: Lower crust; HMT: Hidaka Main Thrust