Studies for Prevention and Mitigation of Natural Disasters Using the K computer

Japan has been hit almost every year in recent years by serious natural disasters. To prevent and mitigate the damage, it is imperative to take effective measures quickly. The Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has embarked on “Strategic Programs for Innovative Research: Advanced Prediction Researches for Natural Disaster Prevention and Reduction (Field 3),” in collaboration with universities and research bodies in Japan. In the Field 3 studies, large-scale natural disaster simulations on the K computer have been conducted. We have already obtained good results such as acquiring an ability to precisely forecast Madden-Julian oscillation, obtaining high-precision tornado simulation results, carrying out advanced simulations on seismic motion, conducting high-resolution tsunami simulations related to a Nankai Trough quake, carrying out high-resolution seismic response analysis, and conducting multi-agent simulations for evacuation actions.