Human Geosciences (H)
Session Sub-category Complex & General(CG)
Session ID H-CG17
Title Tsunami science: learn from the past and mitigate future disasters
Short Title Tsunami science
Main Convener Name Masaki Yamada
Affiliation Department of Geology, Faculty of Science, Shinshu University
Co-Convener 1 Name Hiroaki Tsushima
Affiliation Meteorological Research Institute, Japan Meteorological Agency
Co-Convener 2 Name Toshitaka Baba
Affiliation Graduate School of Science and Technology, Tokushima University
Co-Convener 3 Name Yumi Shimada
Affiliation National Institute of Advanced Industrial Science and Technology
Session Language 
E
Scope 
The disastrous tsunamis caused by the 2004 Sumatra earthquake and the 2011 Tohoku earthquake accelerated tsunami researches in various fields. In recent years, researches on non-seismic tsunamis have also been actively conducted, including landslide tsunamis from the 2018 Sulawesi earthquake and the Anak Krakatau volcanic eruption, as well as tsunami-like waves generated by the atmospheric pressure waves from the 2022 Hunga Tonga-Hunga Ha'apai volcanic eruption. This session covers tsunamis generated by any mechanisms and welcomes a wide range of presentations from the fields of science (e.g., geology and geophysics), engineering, and disaster prevention. This includes researches on tsunami generation and propagation theory, studies utilizing observation data such as instrumental tsunami records and tsunami deposits (both modern and paleo), and prediction and risk assessment researches aimed at mitigating future tsunami disasters.
Presentation Format Oral and Poster presentation
Invited Authors Catherine Chague (University of New South Wales)
Toru Tamura (Geological Survey of Japan, AIST)
Time Presentation No Title Presenter
Oral Presentation May 29 AM1
9:00 - 9:15 HCG17-01 Potential utilization of TAMTAM SMART cable for rapid characterization of tsunami hazard in the southwest Pacific Sean Santellanes
9:15 - 9:30 HCG17-02 Tsunami Data Assimilation with a Nonlinear Propagation Model: Application to the 2025 Mw 8.8 Kamchatka Earthquake Yuchen Wang
9:30 - 9:45 HCG17-03 Surrogate Modeling of Tsunami Simulation using Neural Operator: Application to Sequential Data Assimilation Masayoshi Someya
9:45 - 10:00 HCG17-04 Detection of Hidden Non-Seismic Tsunamis Using Ocean-Bottom Pressure Gauge Records Kudo Aoi
10:00 - 10:15 HCG17-05 Recurrent Mw 5 Non-Double-Couple Earthquakes and Associated Tsunamis at a Submarine Caldera West of Tongatapu, Tonga Osamu Sandanbata
10:15 - 10:30 HCG17-06 Noise reduction of ocean bottom pressure records in real-time tsunami inversion: application to the 2025 MJMA 7.5 off-Aomori earthquake Hiroaki Tsushima
Oral Presentation May 29 AM2
10:45 - 11:00 HCG17-07 Probabilistic tsunami hazard assessment for intra-slab earthquakes in the Philippine Sea Plate along the Sagami Trough Yuji Dohi
11:00 - 11:15 HCG17-08 Assessment of Tsunami Hazards in the North Sulawesi Trench through Deterministic Modeling: Effects of Rupture Scenarios, Energy Flow, and Bathymetry Alimuddin Hamzah Assagaf
11:15 - 11:30 HCG17-09 Tsunami Hazard Assessment in Maluku Province Based on Earthquake Recurrence Time and Tsunami Modeling Suci Dewi Anugrah
11:30 - 11:45 HCG17-10 Realistic tsunami hazard and damage forecast for giant earthquakes off the Pacific coast of Hokkaido in Japan Yuichiro Tanioka
11:45 - 12:00 HCG17-11 Modeling Tsunami Generation and Propagation from Dynamic Seafloor Motion Using a High-Order Spectral Solver Thomas Melkior
12:00 - 12:15 HCG17-12 Quantifying Uncertainty in Tsunami Runup Induced by Small-Scale Disturbances Takuya Miyashita
Oral Presentation May 29 PM1
13:45 - 14:00 HCG17-13 Volcanic Tsunami Genesis and Its Prediction for Early Warning Tony Song
14:00 - 14:15 HCG17-14 Spherical-coordinate STOC–CADMAS coupled tsunami simulation for the 2022 Tonga volcanic eruption Tatsuhiko Tokuta
14:15 - 14:30 HCG17-15 AI-Enhanced Coastal Acoustic Tomography with Robust ICT Integration for Near-Field Tsunami Detection and Indonesian Throughflow Monitoring in the Mahakam Delta, Makassar Strait Fadli Syamsudin
14:30 - 14:45 HCG17-16 Automatic Extraction of Tsunami Water-Level Time Series from Coastal Video Data Using a Deep-learning Approach Masaaki MINAMI
14:45 - 15:00 HCG17-17 The slip distribution of the 2025 Kamchatka earthquake determined with dispersive tsunami images observed by SWOT satellite Kiyohiro Ishijima
15:00 - 15:15 HCG17-18 Slip distributions of the 2025 and 1952 Kamchatka earthquakes based on tsunami waveform records Yushiro Fujii
Oral Presentation May 29 PM2
15:30 - 15:45 HCG17-19 Geochemical signatures can help provide a better estimate of the inundation limit of past tsunamis Catherine Chague
15:45 - 16:00 HCG17-20 Post-depositional geochemical characteristics of tsunami deposits during the first year after the 2024 Noto Peninsula tsunami Miyuki Kikuchi
16:00 - 16:15 HCG17-21 Long-Term Fate of Tsunami Deposits: Evidence from the 2004 Indian Ocean Tsunami Revisited After Two Decades Witold Szczucinski
16:15 - 16:30 HCG17-22 Historical tsunami deposits at islands in Sendai Bay Shu HAKUMURA
16:30 - 16:45 HCG17-23 Nonlinear inversion of tsunami deposit thickness: Assessing dependency to survey site distribution through numerical experiments Hidetoshi Masuda
16:45 - 17:00 HCG17-24 Sandy shoreline geomorphology and its functions for the geological reconstruction of tsunami events Toru Tamura
Presentation No Title Presenter
Poster Presentation May 29 PM3
HCG17-P01 The slip distribution of the 2023 Loyalty Island earthquake tsunami determined with SWOT satellite image Kiyohiro Ishijima
HCG17-P02 A Fault Model of the 2025 Kamchatka Earthquake from Nonlinear Inversion Using Runup Heights and Far-Field Tsunami Waveforms Masato Kamiya
HCG17-P03 Attenuation Characteristics of Tsunamis Observed by DART for the 2025 Kamchatka Earthquake and the 2011 Tohoku Earthquake Sora Toriumi
HCG17-P04 Physics-Informed Deep Operator Network for Coastal Tsunami Waveform Prediction: Case studies of events generated along the Japan Trench Yuki Mizutani
HCG17-P05 Tsunami wave height prediction using data assimilation of seafloor magnetic data in French Polynesia Hirano Takayuki
HCG17-P06 Tsunami initial conditions from elastic wave modeling: A theoretical link to the Kajiura filter Takuto Maeda
HCG17-P07 Development of a Global Tsunami Computation Code on a Yin-Yang Chimera Grid: Toward Coupled Tsunami–Atmospheric Wave Modeling Tatsuya Nakagaki
HCG17-P08 Atmospheric Pressure Waves observed at the Japan Meteorological Agency's meteorological observatories on the 2011 off the Pacific coast of Tohoku Earthquake and its numerical simulation results. Hidee Tatehata
HCG17-P09 Comparison of submarine landslide tsunami generation models: A case study of the 2024 Noto Peninsula earthquake Eita Koura
HCG17-P10 Analysis of Tsunami Period Characteristics along the Eastern Coast of Korea Using Numerical Simulations Tomoya Abe
HCG17-P11 Construction of Source Fault Models for Intraslab Earthquakes within the Subducting Philippine Sea Plate along the Sagami Trough and Results of Tsunami Propagation and Inundation Simulations Koichi Murata
HCG17-P12 Trial Hazard Assessment Using Source Fault Models Selected Through Classification Yoshinori Tokizane
HCG17-P13 Constructing fault models for giant earthquakes occurred in the 17th and 13th–14th centuries along the southern Kuril Trench Kei Ioki
HCG17-P14 Constraining the source of the 1026 CE Manju tsunami in the SW coast of the Sea of Japan using landslide volume-based numerical simulations Ryuto Nakamura
HCG17-P15 Tsunami generation by multiple source components during an intraplate earthquake: Insights from the 1596 CE Keicho Bungo event, Japan Masaki Yamada
HCG17-P16 Inverse fault mechanism of the 1911 Kikai earthquake using nonlinear tsunami simulations and Bayesian optimization RYO NAKANISHI
HCG17-P17 Development of a tsunami sediment transport model based on JAGURS Liu bofu
HCG17-P18 Identification of visually indistinct tsunami inundation signatures using sedimentology, geochemistry, and environmental DNA Tetsuya Shinozaki
HCG17-P19 Sequential radiocarbon dating of multiple cores from the Kiri-Kiri coast reveal features of differential erosion caused by past tsunamis Jessica Biddle
HCG17-P20 Examination of the Depositional Processes of Tsunami Deposits within
the Kurikawashiri River Channel during the 2024 Noto Peninsula Earthquake 		Keigo Motegi
HCG17-P21 Tsunami deposits and associated environmental change in Wakasa Bay, Sea of Japan Koya Takahashi
HCG17-P22 Tsunami inundation history on the southern coast of Awaji Island, Hyogo prefecture Asahi Endo