The 2026 SSJ Fall Meeting
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Session Details

Room BRegular session : S09. Seismicity

[S09]Seismicity

Thu. Nov 5, 2026 11:00 AM - 12:45 PM JST
Thu. Nov 5, 2026 2:00 AM - 3:45 AM UTC
Room B (5F)
chairperson: Takashi Nishizawa (Graduate School of Faculty of Science, Kyoto University), Hirofumi Kowari (Okayama Univ.)
11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[S09-12]Along-Dip Variations in Triggering Among Low-Frequency Earthquakes in Shikoku

*Kaito Shimomura1, Naofumi Aso1 (1. Tokyo University of Science)
11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[S09-13]Detection of Candidate Slow Slip Events from Repeating Earthquake Activation: Application to the Hyuga-nada Region

*Kaho Kito1, Tomoaki Nishikawa2 (1. Graduate School of Science, Kyoto University, 2. Disaster Prevention Research Institute, Kyoto University)
11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[S09-14]Spatiotemporal Relationships of Repeating Earthquakes and Earthquake Swarms with Slow Slip Events in Costa Rica

*Takashi Nishizawa1, Tomoaki Nishikawa2, Yuta Mitsui3, Mario Arroyo-Solórzano4, Yukitoshi Fukahata2 (1. Graduate School of Faculty of Science, Kyoto University, 2. Disaster Prevention Research Institute, Kyoto University, 3. Department of Geosciences, Shizuoka University, 4. GFZ Helmholtz Centre for Geosciences)
11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)

[S09-15]Display and search system for earthquake fault planes of all earthquakes of magnitude 5.5 and above across the entire Japanese Archipelago

*Tadakatsu Sato1, Yuko Sato1, Shigeki Horiuchi1 (1. Home Seismometer Corporation)
12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)

[S09-16]Estimation of the Earthquake Fault Plane for 2026 Kumamoto Earthquake Using HypoTD-Derived Hypocenter Distributions

*Shigeki Horiuchi1, Tadakatsu Sato1, Yu Sato1, Masumi Yamada4, Toshiko Terakawa5, Minoru Yoshida2, Hiroyuki Fujiwara3 (1. Home Seismometer Corporation, 2. Hakusan Corporation, 3. NIED, 4. DPRI, 5. Earthquake and Volcano Research Center, Graduate School of Environmental Studies, Nagoya University)
12:15 PM - 12:30 PM JST(3:15 AM - 3:30 AM UTC)

[S09-17]Deep growth fault and imbricated structure causing the 2026 Kumamoto Earthquake

*Jyunzo KASAHARA1 (1. Shizuoka Univ.)
12:30 PM - 12:45 PM JST(3:30 AM - 3:45 AM UTC)

[S09-18]Seismic activity surrounding the earthquake in central Oita Prefecture in 2016 inferred from FAMT analysis and hypocenter relocation

*Hirofumi Kowari1,2, Masanao Komatsu3, Taro Okamoto4, Takeshi Nakamura5, Masayuki Yoshimi6, Takumi Hayashida7, Hiroshi Takenaka1 (1. Department of Earth Sciences, Okayama University, 2. Hanshin Consultants Co., Ltd., 3. Okayama Gakuin University, 4. Institute of Science Tokyo, 5. Central Research Institute of Electric Power Industry, 6. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 7. International Institute of Seismology and Earthquake Engineering, Building Research Institute)
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