Abstract
In light of the 2011 off the Pacific coast of Tohoku Earthquake (Tohoku Earthquake) Tsunami and the accident at the Fukushima Dai-ichi nuclear power plant, it is necessary to improve the probabilistic tsunami hazard assessment for tsunami risk evaluation of nuclear power plants in consideration of the possibility that the tsunami in the future exceeds the largest magnitude in the past. After the Tohoku Earthquake Tsunami, the new modeling methods for scenario tsunami are proposed based on the above concept. In this study, one of the new modeling methods is applied to the inter-plate earthquake tsunami located on the Japan Trench and the Chishima Trench, and the effects of dealing with uncertainties in tsunami evaluation on the results of the probabilistic tsunami hazard assessment are shown by comparing it with those using the conventional modeling method based on the maximum in the past.
