1. Department of Systems Innovation School of Engineering The University of Tokyo Bunkyo‐ku Japan
2. Research Institute for Marine Geodynamics Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan
3. Ocean Resources Research Center for Next Generation Chiba Institute of Technology Narashino Japan
4. Frontier Research Center for Energy and Resources School of Engineering The University of Tokyo Bunkyo‐ku Japan
5. Earthquake Research Institute The University of Tokyo Bunkyo‐ku Japan
6. Department of Earth and Planetary Sciences School of Science Tokyo Institute of Technology Meguro‐ku Japan
7. Submarine Resources Research Center Research Institute for Marine Resources Utilization Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan