Active Faults and Nuclear Power Plants


In a new article, Woody Epstein examines the importance of seismic definitions used by Japan’s new regulatory body, the Nuclear Regulatory Authority (NRA), in determining the operational seismic safety standards for nuclear power plants. Epstein uses the Tsuruga power plant, situated on the Urasoko Fault near the eastern coast of central Honshu, to illustrate the complexities of categorizing faults as “active.” Epstein asserts that more in-depth probabilistic assessments are necessary to determine the safety of operating nuclear power plants near active fault lines. Epstein posits that utilizing a probabilistic fault displacement hazard analysis would focus on hypothetical scenarios and evidence-based judgments to make thorough and risk-informed decisions on nuclear power plant operations.

Read the full article here.