2011年東北地方太平洋沖地震・津波は津波堆積物研究の一つの契機となり，国内外の様々な分野の研究者がこれまで以上に精力的に調査・解析に取り組んでいる．日々新たな知見が蓄積されているものの，津波堆積物に基づいて地震の規模や津波の波源を推定する手法や津波リスク評価への活用方法は今なお確立されたとは言えない．本セッションは，陸上および海洋底の津波堆積物の特徴，古津波堆積物の識別，形成年代の推定精度の向上，識別基準の確立，津波履歴・規模・波源の推定など津波リスク評価に資する研究に加え，津波堆積物を識別する上で重要となる洪水や高潮など，津波以外のイベント堆積物に関する発表も広く募集する．

The 2011 off the Pacific coast of Tohoku Earthquake and associated tsunami have an influence on the development of tsunami deposit research. After the tsunami, a lot of findings have been reported in various research fields. However, it had been still uncertain how to use the tsunami deposit to estimate its size and source of past tsunamis and future risk assessment. In this session, we welcome researches from all aspects of sedimentary records of modern and paleo tsunamis and numerical and experimental modeling studies for risk assessment. We also include research on other event deposits, such as river floods and storm surges, that they are considered important for identification of tsunami deposits in geological strata.