Seismic hazard evaluation manipulation involved constructing a misleading average: Chubu Electric Power Co. said staff selected one upscaled earthquake motion and then chose 19 additional motions so the average would make the selected motion appear representative.

Relicensing and restart timing became uncertain: The Nuclear Regulation Authority terminated the safety evaluation needed before the plant could return to service, and it is not clear when the process might be restarted or when it might result in a reactor restart.

Regulatory trust issues were already present: The Nuclear Regulation Authority was trying to regain public trust after accusations of regulatory capture that allowed major safety risks to go unrecognized.