NRC: Japan Lessons Learned

Japan Lessons Learned

On March 11, 2011, a 9.0-magnitude earthquake struck Japan and was followed by a 45-foot tsunami, resulting in extensive damage to the nuclear power reactors at the Fukushima Dai-ichi facility. The NRC has taken significant action to enhance the safety of reactors in the United States based on the lessons learned from this accident. This page is intended to serve as a navigation hub to follow the NRC's progress in implementing the many different lessons-learned activities.

Mitigating Strategies Order (EA-12-049) Compliance Status (December 31, 2016)
NRC Staff Review of the IAEA Director General's Report "The Fukushima Daiichi Accident" (February 24, 2016)
Fukushima Water Contamination - Impacts on the U.S. West Coast (Updated January 2015)
A comparison of U.S. and Japanese regulatory requirements in effect at the time of the Fukushima accident (December 6, 2013)
Integrated Regulatory Review Service (IRRS) Follow-up and Post-Fukushima Mission (February 11, 2014)

What Are the Lessons Learned from Fukushima?

Plant-Specific Japan Lessons-Learned Activities

	Mitigation Strategies		Hardened Vents & Filtration
	Spent Fuel Pool Instrumentation Order		Seismic Reevaluations
	Flooding Reevaluations		Plant Walkdowns of Seismic & Flooding Protection Features
	Emergency Preparedness – Staffing & Communications		Mitigation of Beyond-Design-Basis Events Rulemaking
	Regulatory Framework (Recommendation 1)

Reference Library