The 2025 SSJ Fall Meeting
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Session Details

Room BRegular session : S09. Seismicity

[S09]Seismicity

Wed. Oct 22, 2025 10:45 AM - 12:15 PM JST
Wed. Oct 22, 2025 1:45 AM - 3:15 AM UTC
Room B(409+410)
chairperson:Takayuki MIYOSHI(National Research Institute for Earth Science and Disaster Resilience), Osamu SANDANBATA(Earthquake Research Institute, The University of Tokyo)
10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[S09-13]A study of the epicenters of old earthquakes by comparing the present-day dense seismic intensity data with old macro seismic data.

*Nobuo HAMADA1 (1. non)
11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[S09-14]Monitoring of shallow tectonic tremors along the Nankai trough using the N-net

*Takayuki MIYOSHI1, Takanori Matsuzawa1, Youichi Asano1, Kazuaki Ohta1 (1. National Research Institute for Earth Science and Disaster Resilience)
11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[S09-15]Precise Determination of Hypocenter Locations Using DAS Data in the Central Shikoku

*Takumi Takahashi1, Aitaro Kato2, Ji Zhang2, Masanao Shinohara2 (1. Univ. of Tokyo, 2. Earthquake Research Institute)
11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[S09-16]Spatiotemporal Distribution of Earthquakes near Izu Oshima in 2023

*Hinako Arakawa1, Naofumi Aso1 (1. Tokyo University of Science)
11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)

[S09-17]Insights into Seismic and Volcanic Activity around Kirishima Volcano through Seismic Moment Efficiency

*Satoshi MATSUMOTO1, Issei Hirata2, Yushi Nagyama2, Kentaro Emoto1, Takeshi Matsushima1, Mie Ichihara3, Yohei Yukutake3, Hiroshi Yakiwara4 (1. Institute of Seismology and Volcanology, Faculty of Science, Kyushu Univ., 2. Graduate School of Science, Kyushu Univ., 3. Earthquake Research Institute, Univ. of Tokyo, 4. Graduate School of Science and Engineering, Kagoshima Univ.)
12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)

[S09-18]Full-spectrum similarity of repeating trapdoor faulting

*Osamu SANDANBATA1, Shunsuke Takemura1 (1. Earthquake Research Institute, The University of Tokyo)
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