The 2026 SSJ Fall Meeting
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Poster session (Nov 5)Regular session : S17. Tsunami

[P17]Tsunami

Thu. Nov 5, 2026 5:15 PM - 6:45 PM JST
Thu. Nov 5, 2026 8:15 AM - 9:45 AM UTC
Room P17 (802ー805) (8F)

[P17-01]Extraction of tsunami data from analog tidal marigrams along the Sea of Japan coast

*Yutaka HAYASHI1, Hiroaki TSUSHIMA1, Masaaki MINAMI1, Janith KODITHUWAKKU2, Yumiko TAKAHASHI3 (1. Meteorological Research Institute, 2. SELC Co., Ltd., 3. Intec Co., Ltd.)

[P17-02]Source estimation of the short-wavelength subsequent tsunami observed during the 2025 Kamchatka Peninsula earthquake

*Akino Naitoh1, Toshitaka Baba1 (1. Tokushima Univ.)

[P17-03]Tsunami Waveform Inversion for the 2024 Hualien Earthquake Including Dispersive Effects

*Shota Amo1, Toshitaka Baba1 (1. Tokushima University)

[P17-04]Development of a Differentiable Tsunami Simulation Code Using JAX: Application to Nonlinear Tsunami Inversion

*Masato KAMIYA1, Masayoshi Someya2,3,4 (1. Formerly of Earthquake Research Institute, The University of Tokyo, 2. Earthquake Research Institute, The University of Tokyo, 3. JSPS Research Fellow (DC1), 4. Japan Agency for Marine-Earth Science and Technology)

[P17-05]Graph Neural Network-Based Surrogate Modeling of Tsunami Propagation: Toward Reproducing Coastal Reflected Waves

*Masayoshi Someya1,2,3, Takashi Furumura1 (1. Earthquake Research Institute, The University of Tokyo, 2. JSPS Research Fellow, 3. Japan Agency for Marine-Earth Science and Technology)

[P17-06]Implementation of OpenMP-Based GPU Offloading and Time Nesting in the Tsunami Simulation Code JAGURS

*Masaaki MINAMI1, Toshihiro Kato2, Hiroaki Tsushima1, Yutaka Hayashi1, Toshitaka Baba3 (1. Meteorological Research Institute , Japan Meteorological Agency, 2. NEC Corporation, 3. Tokushima University)

[P17-07]Propagation and Spectral Characteristics of Tsunami caused by the Osaka Bay Fault

*Atsuya Kidoguchi1, Toshitaka Baba1 (1. Tokushima Univ.)

[P17-08]Two-dimensional tsunami inundation analysis modeling buildings as composite topography

*Airi Kato1, Toshitaka Baba1 (1. Tokushima University)

[P17-09]Effects of Bottom Friction on the Attenuation and Frequency Characteristics of Far-Field Tsunamis

*Sora Toriumi1, Toshitaka Baba1 (1. Tokushima Univ.)

[P17-10]Probabilistic Tsunami Hazard Assessment along Sagami trough: Probability Setting Method and Hazard Assessment Results

*Koichi MURATA1, Hiroyuki Fujiwara2, Hiromitsu Nakamura2, Kenji Hirata2, Yuji Dohi2, Nobuyuki Morikawa2, Hisanori Matsuyama1, Makoto Nemoto1, Tadashi Kito1, Xuelei Zhang1, Hiroshi Kimura1 (1. OYO Corporation, 2. National Research Institute for Earth Science and Disaster Resilience)

[P17-11]Probabilistic Tsunami Hazard Assessment along Sagami trough: Characterized fault models and Simulation results

*Xuelei ZHANG1, Hiroyuki Fujiwara2, Hiromitsu Nakamura2, Kenji Hirata2, Yuji Dohi2, Nobuyuki Morikawa2, Hisanori Matsuyama1, Makoto Nemoto1, Tadashi Kito1, Koichi Murata1, Hiroshi Kimura1 (1. OYO CORPORATION, 2. National Research Institute for Earth Science and Disaster Resilience)

[P17-12]Real-time tsunami source inversion accounting for non-tsunami and non-seafloor-deformation components in ocean bottom pressure records

*Hiroaki TSUSHIMA1, Tatsuya KUBOTA2, Takeyasu YAMAMOTO1, Ryota HINO3, Yusaku OHTA3, Tatsuhiko SAITO2 (1. Meteorological Research Institute, Japan Meteorological Agency, 2. National Research Institute for Earth Science and Disaster Resilience, 3. Graduate School of Science, Tohoku University)
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