JpGU-AGU Joint Meeting 2026

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[J] Oral

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

[S-CG70] Ocean Floor Geoscience

Thu. May 28, 2026 1:45 PM - 3:15 PM Convention Hall (CH-B) (International Conference Hall, Makuhari Messe)

Chairperson:Shiraishi Kazuya(Japan Agency for Marine-Earth Science and Technology), Kawano Yuki(Japan Organization for Metals and Energy Security)

Most of Earth's volcanism and much of its tectonic activity occur on and beneath the seafloor. Various seafloor phenomena are closely linked to plate tectonics, Earth's internal structure and dynamics, and are also connected to the Earth's environments through interactions with the hydrosphere and atmosphere. Rocks and sediments from the seafloor preserve records of Earth's evolution as well as its heat and material fluxes.
The Ocean Floor Geoscience session covers a broad range of research topics related to the seafloor, including mid-ocean ridge processes, subduction dynamics, arc and intraplate magmatism, crustal movement and structure, and more. All research fields and approaches are welcome. The session aims to encourage discussion among scientists from diverse disciplines and to integrate our understanding of the ocean floor.

1:45 PM - 2:00 PM

[SCG70-01] Offshore aftershock observation of the 2024 Noto earthquake using Ocean Bottom Seismometers over one year

*Tomoaki Yamada1, Masanao Shinohara1, Takehi Isse1, Takeshi Akuhara1, Hajime Shiobara1, Kimihiro Mochizuki1, Eiji Kurashimo1, Tsutomu Takahashi2, Koichiro Obana2, Gou Fujie2, Shuichi Kodaira2, Yoshio Murai3, Ryosuke Azuma4, Ryota Hino4, Hisatoshi Baba5, Yusuke Yamashita6, Hiroshi Yakiwara7 (1. Earthquake Research Institute, The University of Tokyo, 2. Japan Agency for Marine-Earth Science and Technology, 3. Faculty of Science, Hokkaido University, 4. Graduate School of Science, Tohoku University, 5. School of Marine Science and Technology, 6. Faculty of Humanities, Miyazaki Municipal University, 7. Research Field in Science, Science and Engineering Area Graduate School of Science and Engineering, Kagoshima University)

Discussion (3:00 PM - 3:15 PM)

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