[S-SS08] Crustal Structure

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

convener:Seiichi Miura(Japan Agency for Marine-Earth Science and Technology), Ryosuke Azuma(Recearch Center for Prediction of Earthquake and Volcanic Eruption, Graduate School of Science, Tohoku University), Chairperson:Ayako Nakanishi(Japan Agency for Marine-Earth Science and Technology), Yohei Yukutake(Earthquake Research Institute, University of Tokyo)

This session aims to cover seismological and geophysical studies on the Earth's crust and uppermost mantle. Contribution to the seismological and geophysical structure of the crust and processes that develop in the crust which includes earthquakes, volcanoes, and geological descriptions of the crust are welcomed. We also welcome theoretical and methodological studies that will serve as basics in such explorations.

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10:45 AM - 11:00 AM

[SSS08-01] Crustal heterogeneity in the 2024 Mutsu Bay earthquake area: effect of fluids from slab dehydration

*Motoya Suzuki¹, Dapeng Zhao¹, Genti Toyokuni¹ (1.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University)

11:00 AM - 11:15 AM

[SSS08-02] Time variation of the S-wave polarization anisotropy in the 2024 northern Iwate seismic activity.

*Ryotaro Fujimura¹, Tomomi Okada¹, Martha Savage², Ayaka Tagami^1,3, Harumi Uchida¹ (1.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University, 2.Victoria University of Wellington, 3.Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University)

11:15 AM - 11:30 AM

[SSS08-03] Magma feeding system beneath the Kirishima volcano based on 3-D velocity structure

*Yohei Yukutake¹, Yutaka Nagaoka², Takao Ohminato¹, Satoshi Matsumoto⁴, Takahiro Ohkura³ (1.Earthquake Research Institute, University of Tokyo, 2.Hot Springs Research Institute of Kanagawa Prefecture, 3.Graduate School of Science, Kyoto University, 4.Faculty of Science, Kyushu University)

11:30 AM - 11:45 AM

[SSS08-04] Surface wave tomography in and around the Sea of Japan using ambient noise data

*Tohma Tezuka¹, Kazunori Yoshizawa², Nori Nakata³, Kiwamu Nishida⁴ (1.Graduate School of Science, Hokkaido University, 2.Faculity of Science, Hokkaido University, 3.Massachusetts Institute of Technology , 4.Earthquake Reserch Institute, University of Tokyo)

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)

12:00 PM - 12:15 PM

[SSS08-06] Understanding earthquake source faults and active fault systems through advances in heterogeneous structure imaging technology

*Susumu Abe¹, Masafumi KATOU¹, Hiroshi Sato², Tatsuya Ishiyama², Hideo Saito¹ (1.JGI, Inc., 2.ERI, Univ. of Tokyo)

Session information