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Keyword:Chubu Electric Power

Japan's Nuclear Regulation Authority Begins Revising Seismic Motion Evaluation Guidelines

Japan's Nuclear Regulation Authority Begins Revising Seismic Motion Evaluation Guidelines

In response to the data falsification issue at Chubu Electric Power's Hamaoka Nuclear Power Plant, Japan's Nuclear Regulation Authority (NRA) has initiated the revision of seismic motion evaluation guidelines. The falsification involves seismic motion evaluation data that underpins the safety of nuclear power plants, carrying significant implications. The NRA has stated it will treat this matter with utmost seriousness, aiming to establish stricter standards and monitoring systems through the guideline revision. Chubu Electric Power's data tampering is a grave issue that undermines public trust in nuclear power plant safety. Seismic motion evaluation is an extremely critical element in assessing the seismic resistance of nuclear power plants, and data accuracy is fundamental to safety. This incident has called into question the safety of the Hamaoka Nuclear Power Plant, necessitating a thorough investigation and re-evaluation by regulatory authorities. In the revision work...

2026-08-01

Japan's Nuclear Regulation Authority to Revise Seismic Review Guidelines for Nuclear Power Plants

Japan's Nuclear Regulation Authority to Revise Seismic Review Guidelines for Nuclear Power Plants

Following the exposure of Chubu Electric Power Co., Inc.'s alleged tampering with data related to earthquake assumptions at the Hamaoka Nuclear Power Plant in Shizuoka Prefecture, Japan's Nuclear Regulation Authority (NRA) has decided to revise certain seismic review guidelines for nuclear power plants to strengthen prevention of similar misconduct. At a regular meeting held on July 29, the NRA decided to proceed with revisions to the guidelines concerning seismic assumption reviews. Previously, the review process primarily focused on the calculation results submitted by nuclear power plant operators. The revision will extend the scope of verification to include the calculation process and the data used therein, in order to prevent companies from intentionally selecting, adjusting, or manipulating data.

2026-07-30