[E] Poster
S (Solid Earth Sciences ) » S-CG Complex & General
Mon. May 26, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)
convener:Shuichi Kodaira(Japan Agency for Marine-Earth Science and Technology), Kohtaro Ujiie(Faculty of Life and Environmental Sciences, University of Tsukuba), Tatsuya Kubota(National Research Institute for Earth Science and Disaster Resilience), Ryota Hino(Graduate School of Science, Tohoku University)
In the 2011 Tohoku-Oki Earthquake, large fault slips exceeding 50 meters were observed near the trench axis, an area previously thought to experience stable sliding or aseismic slip during an earthquake cycle. Various methods, including geophysical surveys, observations, ocean drilling, experiments, and simulations, have been employed to clarify the mechanisms behind these shallow, large fault slips. However, the state of fault locking before and between earthquakes - critical to understanding fault slip - remains unclear. To answer this question based on data from the Tohoku-Oki and inland earthquakes, as well as theoretical and model studies, two contrasting hypotheses have been proposed: one suggests that mechanical locking in the shallow part of the plate boundary rapidly progresses after an earthquake, while the other posits that the shallow part remains mechanically unlocked throughout an earthquake cycle. A unified view on this issue has not yet been established. This session aims to address the fundamental problem in the earthquake generation process: how fault strength recovers and stress accumulates along the source fault of a subduction seismogenic zone. We also hope to use the session as an opportunity to share new knowledge about the geophysical and geological structure of the source faults of megathrust earthquakes, and their spatial variation along and across the subduction zone. We invite research presentations from a wide range of fields, including geophysics, geodesy, geology, petrology, geochemistry, drilling science, and both model and theoretical researches, with a focus on subduction seismogenic zones worldwide.
5:15 PM - 7:15 PM
*Toshiya Kanamatsu1, Ken Ikehara2, KanHsi Hsiung1, Yu-Chun Chang1, Kazuno Arai2 (1.Japan Agency for Marine-Earth Science and Technology, 2.National Institute of Advanced Industrial Science and Technology)
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5:15 PM - 7:15 PM
*Masao IWAI1, Kohtaro UJIIE2, Shuichi KODAIRA3, Christine REGALLA4, Marianne CONIN5, Jamie KIRKPATRICK6, Patrick FULTON6, Minori HAGINO7, Toshiya KANAMATSU3, Yuzuru YAMAMOTO8, Uisdean NICHOLSON9, Amy GOUGH9, Asuka YAMAGUCHI10, Charlotte PIZER11, Kaitlin SCHAIBLE12, Maria Jose JURADO13, Mai-Linh DOAN14, Yasuyuki NAKAMURA3, Ayumu MIYAKAWA15, Weiren LIN16, Lena MAEDA3, Natsumi OKUTSU3, Nobu EGUCHI3, IODP JTRAC Exp.405 Scientific Party17 (1.MaCRI, Kochi University, 2.University of Tsukuba, 3.JAMSTEC, 4.Northern Arizona University, 5.Lorraine University, 6.Cornell University, 7.Yamagata University, 8.Kobe University, 9.Heriot-Watt University, 10.AORI, The University of Tokyo, 11.University of Innsbruck, 12.University of Texas at Austin, 13.Geosciences Barcelona CSIC, 14.Université Grenoble Alpes, 15.Geological Survey of Japan, AIST, 16.Kyoto University, 17.https://www.jamstec.go.jp/chikyu/e/exp405/crew_all.html)
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5:15 PM - 7:15 PM
*Minori Hagino1, Masao Iwai2, Marianne Conin3, Patrick Fulton4, Jamie Kirkpatrick5, Shuichi Kodaira6, Christine Regalla7, Kohtaro Ujiie8, Nobu Eguchi6, Lena Maeda6, Natsumi Okutsu6, Sean Toczko6, IODP Expedition 405 Science Party (1.Graduate School of Science and Engineering, Yamagata University, 2.KCC/MaCRI, Kochi University, 3.University of Lorraine, 4.Cornell University, 5.University of Nevada, Reno, 6.JAMSTEC, 7.Northern Arizona University, 8.University of Tsukuba)
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5:15 PM - 7:15 PM
*Yasuyuki Nakamura1, Jonathan Ford2, Uisdean Nicholson3, Ayumu Miyakawa4, Yohei Hamada1, Marianne Conin5, Patrick Fulton6, Jamie Kirkpatrick7, Christine Regalla8, Shuichi Kodaira1, Kohtaro Ujiie9, Nobuhisa Eguchi1, Lena Maeda1, Natsumi Okutsu1, Sean Toczko1, IODP Expedition 405 Science Party - (1.Japan Agency for Marine Earth Science and Technology, 2.University of Hamburg, 3.Heriot-Watt University, 4.National Institute of Advanced Industrial Science and Technology, 5.University of Lorraine, 6.Cornell University, 7.University of Nevada, Reno, 8.Northern Arizona University, 9.University of Tsukuba)
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5:15 PM - 7:15 PM
*M Rene Castillo1, Brendan Crowell1, Jill Leonard-Pingel1, Christine Regalla2, Amy Gough3, Uisdean Nicholson3, Rina Fukuchi4, Marianne Conin5, Patrick Fulton6, Jamie Kirkpatrick7, Shuichi Kodiara8, Kohtaro Ujie9, Lena Madea8, Natsumi Okutsu8, Nobu Eguchi8, IODP Expedition 405 Scientists (1.The Ohio State University, School of Earth Sciences, USA, 2.Northern Arizona University, School of Earth and Sustainability, USA, 3.Heriot-Watt University, Institute of GeoEnergy Engineering, UK , 4.Naruto University of Education, Graduate School of Education, Japan , 5.University of Lorraine, GeoResources Laboratory, France , 6.Cornell University, USA , 7.University of Nevada Reno, Geological Sciences and Engineering, USA, 8.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan, 9.University of Tsukuba, Graduate School of Science and Technology, Japan)
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5:15 PM - 7:15 PM
*Yohei Hamada1, Marianne Conin2, Kohtaro Ujiie3, Jamie Kirkpatrick4, Shuichi Kodaira1, Christine Regalla5, Patrick Fulton6, Nobuhisa Eguchi1, Lena Maeda1, Natsumi Okutsu1 (1.Japan Agency for Marine-Earth Science and Technology, 2.University of Lorraine, 3.Tsukuba university, 4.University of Nevada Reno, 5.Nothern Arizona University, 6.Cornell University,)
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5:15 PM - 7:15 PM
*Hiroki Sone1, Zirou Jin1, Kunal Bhagat1, Shiva Rudraraju1 (1.University of Wisconsin-Madison)
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5:15 PM - 7:15 PM
*Takeru Yoshimoto1, Taizo Uchida2, Sara Satolli4, Toshiya Kanamatsu3, Yuzuru Yamamoto1, Kohtaro Ujiie5, Marianne Conin6, Jamie Kirkpatrick8, Christine Regalla9, Patrick Fulton7, Shuichi Kodaira3, IODP Exp. 405 Scientists (1.Kobe University, 2.Kochi University, 3.JAMSTEC, 4.University of Chieti-Pescara, 5.University of Tsukuba, 6.University of Lorraine, 7.Cornell University, 8.University of Nevada, Reno, 9.Northern Arizona University)
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5:15 PM - 7:15 PM
*Taizo Uchida1, Toshiya Kanamatsu2, Sara Satolli3, Takeru Yoshimoto4, Marianne Conin5, Jamie Kirkpatrick6, Shuichi Kodaira2, Patrick Fulton7, Christine Regalla8, Kohtaro Ujiie9, Lena Maeda2, Natsumi Okutsu2, IODP Expedition 405 Scientists - (1.Kochi University, 2.Japan Agency for Marine-Earth Science and Technology, 3.University of Chieti-Pescara, 4.Kobe University, 5.University of Lorraine, 6.University of Nevada, Reno, 7.Cornell University USA, 8.Northern Arizona University, 9.University of Tsukuba)
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5:15 PM - 7:15 PM
*Tzu-Ting Chen1, Charles K. Paull2, Ho-Han Hsu1,3, Char-Shine Liu1,3 (1.Institute of Oceanography, National Taiwan University, Taipei, Taiwan, 2.Monterey Bay Aquarium Research Institute, Moss Landing, California, USA, 3.Ocean Center, National Taiwan University, Taipei, Taiwan)
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5:15 PM - 7:15 PM
*Jae Hoon Lee1, Dongwoo Han2, Changyeol Lee1 (1.Department of Earth System Sciences, Yonsei University, 2.Department of Earth Sciences, University of Oxford)
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5:15 PM - 7:15 PM
*Fermiro Faza Haribowo1, Shinji Toda2 (1.Graduate School of Science, Tohoku University, 2.International Research Institute of Disaster Science, Tohoku University)
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5:15 PM - 7:15 PM
*Ryo Yasuike1, Tomohiro Toyoda1, Toshihiro Noda1 (1.Civil and Environmental Engineering, Graduate School/School of Engineering, Nagoya University)
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