Print Email Facebook Twitter Improvement of tsunami countermeasures based on lessons from the 2011 great east Japan earthquake and tsunami Title Improvement of tsunami countermeasures based on lessons from the 2011 great east Japan earthquake and tsunami: situation after five years Author Suppasri, A (Tohoku University) Latcharote, Panon (Tohoku University) Bricker, J.D. (TU Delft Hydraulic Structures and Flood Risk; Tohoku University) Leelawat, Natt (Tokyo Institute of Technology) Hayashi, A (Tokyo Institute of Technology) Yamashita, Kei (Graduate School of Engineering) Makinoshima, Fumiyasu (Graduate School of Engineering) Roeber, Volker (Tohoku University) Makinoshima, Fumihiko (Tohoku University) Date 2016 Abstract The 2011 Great East Japan Tsunami exposed many hidden weaknesses in Japan’s tsunami countermeasures. Since then, many improvements have been made in both structural measures (numerical simulations, coastal defense structures, building damage assessment and control forests) and nonstructural measures (warning/observation and evacuation). This review summarizes the lessons and improvements in the five-year time period after the 2011 event. After five years, most of the lessons from the 2011 tsunami have been applied, including more realistic tsunami simulations using very fine grids, methods to strengthen coastal defense structures, building evacuations and coastal forests, improved warning content and key points to improve evacuation measures. Nevertheless, large future challenges remain, such as an advanced simulation technique and system for real-time hazard and risk prediction, implementation of coastal defense structures/multilayer countermeasures and encouraging evacuation. In addition, among papers presented at the coastal engineering conference in Japan, the proportion of tsunami-related research in Japan increased from 15% to 35% because of the 2011 tsunami, and approximately 65–70% of tsunami-related studies involve numerical simulation, coastal structures and building damage. These results show the impact of the 2011 tsunami on coastal engineering related to academic institutions and consulting industries in Japan as well as the interest in each tsunami countermeasure. To reference this document use: http://resolver.tudelft.nl/uuid:a8f21a9a-727f-4c35-aff0-9343efaf8c3e DOI https://doi.org/10.1142/S0578563416400118 Embargo date 2017-10-31 ISSN 0578-5634 Source Coastal Engineering Journal, 58 (4), 1-30 Part of collection Institutional Repository Document type journal article Rights © 2016 A Suppasri, Panon Latcharote, J.D. Bricker, Natt Leelawat, A Hayashi, Kei Yamashita, Fumiyasu Makinoshima, Volker Roeber, Fumihiko Makinoshima Files PDF Main_manuscript.pdf 2.07 MB Close viewer /islandora/object/uuid:a8f21a9a-727f-4c35-aff0-9343efaf8c3e/datastream/OBJ/view