Sun. May 25, 2025 1:45 PM - 3:15 PM 304 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG59] Oceanic plate as inputs to subduction zone: evolution process of the oceanic plate

convener:Takanori Kagoshima(University of Toyama), Naoto Hirano(Center for Northeast Asian Studies, Tohoku University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Yuya Akamatsu(Japan Agency for Marine-Earth Science and Technology), Chairperson:Takanori Kagoshima(University of Toyama), Naoto Hirano(Center for Northeast Asian Studies, Tohoku University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Yuya Akamatsu(Japan Agency for Marine-Earth Science and Technology)

Sun. May 25, 2025 3:30 PM - 5:00 PM 304 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG59] Oceanic plate as inputs to subduction zone: evolution process of the oceanic plate

convener:Takanori Kagoshima(University of Toyama), Naoto Hirano(Center for Northeast Asian Studies, Tohoku University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Yuya Akamatsu(Japan Agency for Marine-Earth Science and Technology), Chairperson:Takanori Kagoshima(University of Toyama), Naoto Hirano(Center for Northeast Asian Studies, Tohoku University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Yuya Akamatsu(Japan Agency for Marine-Earth Science and Technology)

Sun. May 25, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG59] Oceanic plate as inputs to subduction zone: evolution process of the oceanic plate

convener:Takanori Kagoshima(University of Toyama), Naoto Hirano(Center for Northeast Asian Studies, Tohoku University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Yuya Akamatsu(Japan Agency for Marine-Earth Science and Technology)

Thu. May 29, 2025 9:00 AM - 10:30 AM 201A (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS04] Seismological advances in the ocean

9:30 AM - 9:45 AM

[SSS04-03] Noise Reduction for Ocean Bottom Seismometer Waveforms by Generative Models

*Jun Su¹, Ryoichiro Agata¹, Gou Fujie¹, Yasuyuki Nakamura¹ (1.Japan Agency for Marine-Earth Science and Technology)

Thu. May 29, 2025 10:45 AM - 12:15 PM 106 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS08] Crustal Structure

11:45 AM - 12:00 PM

[SSS08-05] Merging multi-scale structure models around the Nankai Trough subduction seismogenic zone towards completing a future 3D community model

*Ayako Nakanishi¹, Yanfang Qin¹, Xin Liu², Ryoichiro Agata¹, Toshiya Fujiwara¹, Dan Bassett⁵, Gou Fujie¹, Katsuhiko Shiomi³, Shuichi Kodaira¹, Narumi Takahashi³, Takeshi Nakamura⁴ (1.Japan Agency for Marine-Earth Science and Technology, 2.University of Hong Kong, 3.National Research Institute for Earth Science and Disaster Resilience, 4.Central Research Institute of Electric Power Industry, 5.GNS Science)

Wed. May 28, 2025 3:30 PM - 5:00 PM Convention Hall (CH-B) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS12] Statistical seismology and underlying physical processes

3:45 PM - 4:00 PM

[SSS12-08] Non-Double-Couple Compoonents of the 2024 Noto Earthquake Aftershocks: Influence on Focal Mechanism Estimation

*Takeshi Akuhara¹, Masanao Shinohara¹, Tomoaki Yamada¹, Ryosuke Azuma², Ryota Hino², Koichiro Obana³, Tsutomu Takahashi³, Gou Fujie³, Shuichi Kodaira³, Yoshio Murai⁴, Hisatoshi Baba⁵, Hiroshi Yakiwara⁶, Yusuke Yamashita⁷ (1.Earthquake Research Institute, The University of Tokyo, 2.Tohoku University, 3.JAMSTEC, 4.Hokkaido University, 5.Tokai University, 6.Kagoshima University, 7.Kyoto University)

Wed. May 28, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS12] Statistical seismology and underlying physical processes

5:15 PM - 7:15 PM

[SSS12-P10] Focal mechanisms at the source area of the 2024 Noto Peninsula earthquake estimated from dense seafloor seismic observation data

*Tsutomu Takahashi¹, Gou Fujie¹, Tetsuo No¹, Masanao Shinohara², Tomoaki Yamada², Takeshi Akuhara² (1.Japan Agency for Marine-Earth Science and Technology, 2.Earthquake Research Institute, The university of Tokyo)

Tue. May 27, 2025 3:30 PM - 5:00 PM 104 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-IT Science of the Earth's Interior & Techtonophysics

[S-IT19] Coupling of deep Earth and surface processes

4:06 PM - 4:24 PM

[SIT19-09] Preliminary Results on Pseudo-3D Seismic Depth Imaging of the 2024 Noto (M7.6) Earthquake Rupture Area

*Hamzeh Mohammadigheymasi¹, Jin-Oh Park¹, YIGE YANG¹, Ehsan Jamali Hondori², Tsutomu Takahashi³, Gou Fujie³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Geoscience Enterprise Inc. (GSE), Tokyo, 3.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology)

Tue. May 27, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[E] Poster
| S (Solid Earth Sciences )
| S-IT Science of the Earth's Interior & Techtonophysics

[S-IT19] Coupling of deep Earth and surface processes

5:15 PM - 7:15 PM

[SIT19-P01] Distribution of the disturbed incoming sediments of the Japan Trench and its potential relation to the outer rise faulting

*YUE SUN¹, Jin-Oh Park¹, Gou Fujie² (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology)

Wed. May 28, 2025 1:45 PM - 3:15 PM 104 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-VC Volcanology

[S-VC36] Volcanoes in the sea

2:30 PM - 2:45 PM

[SVC36-04] Earthquake activity in the Torishima Rift and Sofu Seamount related to the October 2023 tsunamis observed in Japan

*Koichiro Obana¹, Aki Ito¹, Toshiya Fujiwara¹, Masayuki Obayashi¹, Kentaro Imai¹, Yasuyuki Nakamura¹, Kenta K. Yoshida¹, Noriko Tada¹, Tomoya Nakajima¹, Hiroyuki Matsumoto¹, Gou Fujie¹, Satoru Tanaka¹, Shigeaki Ono¹, Shuichi Kodaira² (1.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Japan Agency for Marine-Earth Science and Technology)

Mon. May 26, 2025 3:30 PM - 5:00 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG45] Science of slow-to-fast earthquakes

4:30 PM - 4:45 PM

[SCG45-11] Bayesian multi-source seismic tomography using active- and passive-source seismic data based on physics-informed neural network

*Ryoichiro Agata¹, Kazuya Shiraishi¹, Gou Fujie¹ (1.Japan Agency for Marine-Earth Science and Technology)

Sun. May 25, 2025 9:00 AM - 10:30 AM 106 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG52] Inter-segment Tectonics: Interdisciplinary Research on Responses to Plate Subduction

9:45 AM - 10:00 AM

[SCG52-04] Forearc segmentation: an example of the Tonankai-Tokai regions in the Nankai Trough from new seismic reflection data set

★Invited Papers

*Gaku Kimura¹, Kazuya Shiraishi, Yasuyuki Nakamura, Gou Fujie (1.Japan Agency for Marine-Earth Science and Technology)

Sun. May 25, 2025 10:45 AM - 12:15 PM 106 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG52] Inter-segment Tectonics: Interdisciplinary Research on Responses to Plate Subduction

11:00 AM - 11:15 AM

[SCG52-08] Integrated 3D P-wave Tomography Reveals Forearc Structure of the Central NE Japan Subduction Zone

*Brook Tozer¹, Dan Bassett¹, Shuichi Kodaira², Adrien Arnulf³, Ayako Nakanishi², Seiichi Miura², Gou Fujie², Kimihiro Mochizuki⁴ (1.GNS Science, 2.Japan Agency for Marine-Earth Science and Technology, 3.University of Texas Institute for Geophysics, 4.Earthquake Research Institute, the University of Tokyo)

11:15 AM - 11:30 AM

[SCG52-09] Crustal Structure of the Hikurangi Subduction Zone Revealed by Four Decades of Onshore-Offshore Seismic Data

*Dan Bassett¹, Stuart Henrys¹, Brook Tozer¹, Harm van Avendonk², Andrew Gase², Nathan Bangs², Shuichi Kodaira³, David A Okaya⁴, Katie Jacobs¹, Rupert Sutherland⁵, Hannu Seebeck¹, Gou Fujie³, Kimihiro Mochizuki⁶, Martha K Savage⁵ (1.GNS Science, 2.University of Texas at Austin, 3.JAMSTEC, 4.University of Southern California, 5.Victoria University of Wellington, 6.Earthquake Research Institute - University of Tokyo)

Sun. May 25, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[E] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG52] Inter-segment Tectonics: Interdisciplinary Research on Responses to Plate Subduction

5:15 PM - 7:15 PM

[SCG52-P01] Monitoring of plate coupling along the Nankai Trough using seafloor observation networks: A case of the 2024 Hyuga-nada Earthquake

*Keisuke Ariyoshi¹, Eiichiro Araki¹, Hiroyuki Matsumoto¹, Yuya Machida¹, Shuhei Tsuji¹, Takashi Yokobiki¹, Shuhei Nishida¹, Shuichiro Yada¹, Takeshi Iinuma¹, Kan Aoike¹, Yasuyuki Nakamura¹, Gou Fujie¹, Takane Hori¹, Nobu Eguchi¹, Shuichi Kodaira¹ (1.Japan Agency for Marine-Earth Science and Technology)

5:15 PM - 7:15 PM

[SCG52-P03] Pore pressure estimation in Nankai Trough using full waveform inversion of ocean-bottom seismometer data

*Paul Caesar Mason Flores^1,2, Shuichi Kodaira¹, Kazuya Shiraishi¹, Gou Fujie¹, Ryuta Arai¹, Yasuyuki Nakamura¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Yokohama National University)

Wed. May 28, 2025 10:45 AM - 12:15 PM Convention Hall (CH-A) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG55] Ocean Floor Geoscience

10:45 AM - 11:00 AM

[SCG55-18] Magnetic anomaly on the Sofu Seamount, Izu-Ogasawara (Bonin) Arc

*Toshiya Fujiwara¹, Noriko Tada¹, Kenta K. Yoshida¹, Aki Ito¹, Kentaro Imai¹, Masayuki Obayashi¹, Koichiro Obana¹, Gou Fujie¹, Shigeaki Ono¹, Shuichi Kodaira² (1.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.Japan Agency for Marine-Earth Science and Technology)

Sun. May 25, 2025 1:45 PM - 3:15 PM 304 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG59] Oceanic plate as inputs to subduction zone: evolution process of the oceanic plate

1:45 PM - 2:00 PM

[SCG59-01] Detailed seismic structure across the Kuril Trench off Nemuro, Hokkaido, Japan, revealed by FWI of dense OBS data

*Ryosuke Azuma¹, Gou Fujie², Ryota Hino¹, Shuichi Kodaira² (1.Recearch Center for Prediction of Earthquake and Volcanic Eruption, Graduate School of Science, Tohoku University, 2.Japan Agency for Marine-Earth Science and Technology )

2:15 PM - 2:30 PM

[SCG59-03] Topographic relief of the basement on the subducting oceanic plate along the entire Nankai Trough

*Kazuya Shiraishi¹, Yasuyuki Nakamura¹, Ryuta Arai¹, Tetsuo No¹, Yuka Kaiho¹, Ryo Miura¹, Ayako Nakanishi¹, Seiichi Miura¹, Gou Fujie¹, Shuichi Kodaira¹ (1.Japan Agency for Marine-Earth Science and Technology)

2:30 PM - 2:45 PM

[SCG59-04] Effect of fracture zones on bending of subducting oceanic lithosphere

*Nobukazu Seama^1,2, Tomoeki Nakakuki³, Kazuya Kitada⁴, Gou Fujie⁴ (1.Department of Planetology, Graduate School of Science, Kobe University, 2.Kobe Ocean-Bottom Exploration Center (KOBEC), 3.Earth and Planetary System Science Program, Graduate School of Advanced Science and Engnineering, Hiroshima University, 4.Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

Sun. May 25, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG59] Oceanic plate as inputs to subduction zone: evolution process of the oceanic plate

5:15 PM - 7:15 PM

[SCG59-P03] New dense OBS seismic survey across Japan Trench to reveal detailed structural evolution of the incoming plate

*Gou Fujie¹, Seiichi Miura¹, Yuka Kaiho¹, Ryo Miura¹, Jin-Oh Park², Yasuyuki Nakamura¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Atmosphere and Ocean Research Institute, The University of Tokyo)

Wed. May 28, 2025 1:45 PM - 3:15 PM 103 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG61] Dynamics in mobile belts

1:45 PM - 2:00 PM

[SCG61-01] Crustal structure factors constraining hypocenter distribution in the eastern part of the 2024 Noto Peninsula earthquake, Japan Sea

*Tetsuo No¹, Gou Fujie¹, Yasuyuki Nakamura¹, Tsutomu Takahashi¹, Koichiro Obana¹, Tatsuya Ishiyama², Masaru Ichikawa³, Kenichi Akama³ (1.JAMSTEC, 2.ERI, Univ. of Tokyo, 3.JGI)

Gou Fujie

Convener, Chairperson

Speaker, Author, Co-Author

★Invited Papers