Preface

Progress and future of each field of tsunami research Twenty years have passed since the 2004 Indian Ocean tsunami, which caused the worst human casualties since scientific records were kept. Since then, tsunamis caused by such as the 2010 Chile earthquake, the 2011 Great East Japan (Tohoku) Earthquake, the 2018 Sulawesi Palu earthquake and landslide, the 2018 Krakatau volcanic eruption, the 2022 Tonga volcanic eruption, and the 2024 Noto Peninsula earthquake have occurred with high frequency and occurrence activity and repeated serious damage. In the field of natural science, in particular, the spatial heterogeneity and dynamic rupture process of tsunamis caused by huge earthquakes have been clarified, and are now essential for future tsunami risk assessments, and characterization of wave source faults (tsunami recipes) has been proposed. On the other hand, tsunamis caused by non-seismic causes such as landslides and volcanic eruptions also occur, and discussions are being held on improving generation models and how to provide forecasts and warnings. Furthermore, knowledge of tsunami behavior in coastal areas has deepened, and research has been conducted on the “black tsunami” among sediment movement phenomena, large-scale topographical changes (sedimentation and erosion), and the evaluation of mangroves, sand dunes, and coral reefs as natural disaster mitigation effects. The discussions in the field of engineering were held during the recovery and reconstruction of the Great East Japan Earthquake, and the levels of comprehensive disaster prevention were organized into two stages (levels 1 and 2), and the roles of hard and soft disaster prevention were clarified. In the future, it will be necessary to introduce this idea and create manuals such as specific evaluation methods. In addition, as observation systems in the ocean and coastal areas are being improved, it is possible to use real-time data and consider highly accurate forecast information using AI and other methods. Recently, the use of surveillance cameras has been considered, and the 2024 Noto Peninsula earthquake tsunami was captured in various places. As human life and industrial activities change and evolve, the diversity and complexity of damage and impacts will increase, and the actual situation of complex disasters will be reported and efforts will be made to clarify the actual situation. Here, the chain <low is also examined and classified into several categories, and the creation and understanding of this suggests the process of preventing secondary and tertiary damage, and a lot of knowledge is being gained towards disaster mitigation. The same is true in the field of evacuation behavior from tsunamis, where location information from smartphones with GPS functions makes individual behavior clear while maintaining the confidentiality of personal information, and there are hopes for the development of evacuation behavior simulations that include behavioral psychology. However, the most important thing is to improve and maintain tsunami disaster prevention awareness, and it is essential to improve disaster information literacy, be conscious of always obtaining emergency information, and take appropriate action after an alert is issued by selecting an evacuation route and location and taking action. Challenges include the need for town development that is resilient to future tsunami risks, and it is also important to establish a cultural system that can pass on past experiences and lessons learned. List of Editorial Preface and The Organizing Committee Members of The 16th AIWEST-DR 2024 are available in this Pdf.