Probabilistic Safety Analysis (PSA) of Other External Events than Earthquake

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The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Risk Assessment (WGRISK) initiated a task to review the methods for risk analysis of off-site external events other than earthquake as well as the results and the insights developed in these analyses in order to provide a basis for advances in the area. This report presents the results of this work and the basis for its main recommendations to follow research on climate change and its effects (including potential effects on nuclear power plants), to re-evaluate the situation on external event PSA in a few years and to encourage analysis of operating events caused by external hazards.