Japan Geoscience Union Meeting 2025

Asuka Yamaguchi

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Convener, Chairperson

Mon. May 26, 2025 1:45 PM - 3:15 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo)

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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Ryoichiro Agata(Japan Agency for Marine-Earth Science and Technology), Ryota Takagi(Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University)

Tue. May 27, 2025 9:00 AM - 10:30 AM 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Takanori Matsuzawa(National Research Institute for Earth Science and Disaster Resilience), Daisuke Sato(japan agency for marine-earth science and technology)

Tue. May 27, 2025 10:45 AM - 12:15 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Yoshihiro Ito(Disaster Prevention Research Institute, Kyoto University), So Ozawa(Earthquake Research Institute, University of Tokyo)

Tue. May 27, 2025 1:45 PM - 3:15 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Yuji Itoh(Earthquake Research Institute, the University of Tokyo), Shukei Ohyanagi(Graduate School of Science, Kyoto University)

Tue. May 27, 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Makoto Otsubo(Geological Survey of Japan, Research Institute of Earthquake and Volcano Geology)

Wed. May 28, 2025 9:00 AM - 10:30 AM 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Yoshiyuki Tanaka(Earth and Planetary Science, The University of Tokyo), Manuel J. Aguilar-Velazquez(Department of Earth and Planetary Science - The University of Tokyo)

Wed. May 28, 2025 10:45 AM - 12:15 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Akiko Takeo(Earthquake Research Institutute, the University of Tokyo), Takashi Tonegawa(Research and Development center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology)

Wed. May 28, 2025 1:45 PM - 3:15 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

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Yohei Hamada(Japan Agency for Marine-Earth Science and Technology), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience)

Wed. May 28, 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-CG45] Science of slow-to-fast earthquakes

convener:Aitaro Kato(Earthquake Research Institute, the University of Tokyo), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Ryoko Nakata(Graduate School of Science, The University of Tokyo), Kurama Okubo(National Research Institute for Earth Science and Disaster Resilience)

Mon. May 26, 2025 1:45 PM - 3:15 PM 201A (International Conference Hall, Makuhari Messe)

  • [J] Oral
  • | M (Multidisciplinary and Interdisciplinary)
  • | M-IS Intersection

[M-IS17] New frontiers in geology

convener:Tatsuki Tsujimori(Tohoku University), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Tetsuji Onoue(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University), Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo), Chairperson:Tetsuji Onoue(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University), Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo)

Mon. May 26, 2025 3:30 PM - 5:00 PM 201A (International Conference Hall, Makuhari Messe)

  • [J] Oral
  • | M (Multidisciplinary and Interdisciplinary)
  • | M-IS Intersection

[M-IS17] New frontiers in geology

convener:Tatsuki Tsujimori(Tohoku University), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Tetsuji Onoue(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University), Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo), Chairperson:Tatsuki Tsujimori(Tohoku University), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo)

Mon. May 26, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

  • [J] Poster
  • | M (Multidisciplinary and Interdisciplinary)
  • | M-IS Intersection

[M-IS17] New frontiers in geology

convener:Tatsuki Tsujimori(Tohoku University), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Tetsuji Onoue(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University), Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo)

Speaker, Author, Co-Author

Wed. May 28, 2025 1:45 PM - 3:15 PM Exhibition Hall Special Setting (1) (Exhibition Hall 7&8, Makuhari Messe)

  • [E] Oral
  • | U (Union )
  • | Union

[U-02] Advanced understanding of Quaternary and Anthropocene hydroclimate changes in East Asia

3:00 PM - 3:15 PM

[U02-06] High-resolution paleoclimate reconstruction during interglacials using fossil shells of Mercenaria stimpsoni

★Invited Papers

*Shiono Miki1, Kaoru Kubota2, Rei Nakashima3, Kazushige Tanabe4, Tomoki Chiba5, Cornélia Brosset6, Asuka Yamaguchi1, Christoph J. Gey6, Daniel Vigelius6, Bernd R. Schöne6, Kotaro Shirai1 (1.Atmosphere and Ocean Research Institute, The University of Tokyo, Japan, 2.The Japan Agency for Marine-Earth Science and Technology, Japan, 3.The National Institute of Advanced Industrial Science and Technology, Japan, 4.The University Museum, The University of Tokyo, Japan, 5.Natural History Museum and Institute, Chiba, Japan, 6.Institute of Geosciences, University of Mainz, Germany)

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

  • [J] Poster
  • | H (Human Geosciences )
  • | H-CG Complex & General

[H-CG21] Earth surface processes related to deposition, erosion and sediment transport

5:15 PM - 7:15 PM

[HCG21-P10] Identification of event deposits interbedded with varved sediment in Lake Ichinomegata

*Atsuki Nagata1, Hiroto Kajita2, Hirofumi Tazoe3, Junpei Abo2, Hinano Kusunose2, Takuto Ando4, Takahiro Suzuki4, Masahiro Minowa5, Iroha Ono6, Hitoshi Hasegawa6, Aki Sakuma7, Asuka Yamaguchi8, Yoshiaki Suzuki9, Koji Umeda2 (1.Graduate school of Sustainable Community Studies, Hirosaki University, 2.Graduate school of Science and Technology, Hirosaki University, 3.Institute of Radiation Emergency Medicine, Hirosaki University, 4.Graduate School of International Resource Sciences, Akita University, 5.Institute of Low Temperature Science, Hokkaido University, 6.Faculty of Science and Technology, Kochi University, 7.Department of Earth and Planetary Science, School of Science, the University of Tokyo, 8.Atomosphere and Ocean Research Institute, The University of Tokyo, 9.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

Fri. May 30, 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-SS10] Fault Rheology and Earthquake Physics

Tue. May 27, 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

3:30 PM - 3:45 PM

[SCG45-31] Deciphering deformation processes using Raman spectroscopy on carbonaceous material: the insights from slow strain-rate experiments

★Invited Papers

*Hugues Aymeric Raimbourg1, Benjamin Moris-Muttoni1, Vincent Famin2, Asuka Yamaguchi3, Aurélien Canizarès4 (1.Institut des Sciences de la Terre Orleans, Orleans University, 2.Laboratoire Géosciences Réunion, Université de La Réunion - IPGP, 3.Atmosphere and Ocean Research Institute, The University of Tokyo, 4.CEMHTI, Orleans University)

Mon. May 26, 2025 9:00 AM - 10:30 AM 105 (International Conference Hall, Makuhari Messe)

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

[S-CG46] Uncovering stress accumulation and fault strengthening of megathrust earthquakes

9:45 AM - 10:00 AM

[SCG46-04] Lithological overview of IODP Expedition 405 (JTRACK) Site C0019 and C0026

*Asuka Yamaguchi1, Piero Bellanova2, Morgane Brunet3, Marissa Castillo4, Yu-Chun Chang5, Jenna Everard6, Rina Fukuchi7, Amy Gough8, Uisdean Nicholson8, Charlotte Pizer9, Cédric Turel10, Marianne Conin11, Jamie Kirkpatrick12, Shuichi Kodaira5, Patrick Fulton13, Christine Regalla14, Kohtaro Ujiie15, Scientists IODP Expedition 405, Lena Maeda5, Natsumi Okutsu5 (1.Atomosphere and Ocean Research Institute, The University of Tokyo, 2.RWTH Aachen University, 3.IFREMER, 4.The Ohio State University, 5.JAMSTEC, 6.Lamont-Doherty Earth Observatory, Columbia University, 7.Naruto University of Education, 8.Heriot-Watt University, 9.University of Innsbruck, 10.UMR Géoazur, 11.University of Lorraine, 12.University of Nevada, Reno, 13.Cornell University USA, 14.Northern Arizona University, 15.University of Tsukuba)

Fri. May 30, 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-CG54] New Insights of Fluid-Rock Interactions: From Surface to Deep Subduction Zone

5:15 PM - 7:15 PM

[SCG54-P13] Structural and geochemical analysis of a metasomatized tectonic mélange in the Nomo metamorphic rocks, western Kyusyu, Japan.

*Matsutake Koumi1, Ken-ichi Hirauchi2, Ryosuke Oyanagi3, Asuka Yamaguchi4 (1.Graduate School of integrated Science and Technology, Department of Science, Geoscience Course, Shizuoka University, 2.Department of Geosciences, Faculty of Science, Shizuoka University, 3.Kokushikan University, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

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-CG Complex & General

[S-CG55] Ocean Floor Geoscience

5:15 PM - 7:15 PM

[SCG55-P17] Geophysical Observations During Hakuho-maru KH-19-6 Leg 4 and Preliminary Analysis of the Phoenix Ridge Spreading Process

*Hiroaki Koge1, Chie Honsho1,2, Jinyu Zhou3, Masakazu Fujii4,5, Kyoko Okino6, Minoru Ikehara7, Asuka Yamaguchi6 (1.AIST, 2.Kaiyo Denshi Co.,Ltd., 3.Institude of Industrial Science, The University of Tokyo, 4.National Institute of Polar Research Tachikawa Japan, 5.SOKENDAI (The Graduate University for Advanced Studies) Hayama Japan, 6.Atomosphere and Ocean Research Institute, The University of Tokyo, 7.Marine Core Research Institute, Kochi University)

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

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

Thu. May 29, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

  • [J] Poster
  • | M (Multidisciplinary and Interdisciplinary)
  • | M-IS Intersection

[M-IS14] Paleoclimatology and paleoceanography

5:15 PM - 7:15 PM

[MIS14-P06] Paleoenvironmental change in the East Asia mid-Latitude during the middle to late Pleistocene: Insights from the laminated carbonate in Gobi Desert, Mongolia

*Akito Nakamura1, Hitoshi Hasegawa1, Tomoyo Okumura1, Minoru Ikehara1, Aki Sakuma2, Chuan-Chou Shen3, Ichinnorov Niiden4, Davassuren Davadori5, Tsuyoshi Ishikawa6, Asuka Yamaguchi2, Goro Komatsu7 (1.Kochi univ., 2.Univ.Tokyo, 3.National Taiwan Univ., 4.Paleontological Institute, Mongolia, 5.Mongolian National Univ., 6.JAMSTEC, 7.Università d’Annunzio)