Japan Geoscience Union Meeting 2018

Session information

[JJ] Poster

S (Solid Earth Sciences) » S-CG Complex & General

[S-CG67] Ocean area observation to detect crustal activity under the seafloor: Present and future

Thu. May 24, 2018 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Kazuro Hirahara(Department of Geophysics, Earth and Planetary Sciences, Graduate School of Sciences, Kyoto University), Ryota Hino(Graduate School of Science, Tohoku University), Takane Hori(独立行政法人海洋研究開発機構・地震津波海域観測研究開発センター)

Recent progress of seafloor observations for earthquake and crustal deformation, such as deployment of submarine cable networks of S-net and DONET, and repeated observations of GNSS/A and acoustic extensometer (direct path acoustic ranging ), enable us to evaluate on-going crustal activities in the megathrust regions along the Japan trench and the Nankai trough. We review the present status and the future plans of such seafloor observations, and discuss the future directions of seafloor observation networks, especially for real-time monitoring of crustal activities. Toward these directions, we welcome papers introducing the present status of novel approaches and systems such as optical fiber, laser ranging or seafloor SAR and real-time geodetic observations using mooring buoys or wave glider, and so on. We also welcome future plans to integrate observation for the crustal activity under the seafloor with observation for ocean and climate changes.

*Shukei Ohyanagi1, Kazuaki Ohta2, Yoshihiro Ito2, Ryota Hino3, Yusaku Ohta3, Ryosuke Azuma3, Masanao Shinohara4, Kimihiro Mochizuki4, Toshinori Sato5, Yoshio Murai6 (1.Graduate School of Science, Kyoto University, 2.Disaster Prevention Research Institute, Kyoto University, 3.Tohoku University, 4.Earthquake Research Institute, University of Tokyo, 5.Chiba University, 6.Hokkaido University)

*Natsuki Kinugasa1, Keiichi Tadokoro1, Shun Inagaki1, Yukihiro Terada3, Akira Futamura4, Teruyuki Kato2 (1.Graduate School of Environmental Studies, Nagoya University, 2.Earthquake Research Institute, the University of Tokyo, 3.National Institute of Technology, Kochi College, 4.National Institute of Technology, Yuge College)



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