Imagine if You Received this Call! Michael Weber Deputy Executive Director for Operations August 24, 2011

Fukushima Pre-Earthquake 2

Earthquake and Tsunami 3

4 NRC Priorities Protect U.S. Citizens in the U.S. and abroad Assist the Government of Japan Assist the Department of State and other government agencies

Challenges in the Response Emergency in Japan Different roles and responsibilities Infrastructure damage from earthquakes and tsunami Uncertainties Protracted response 5

6 50-Mile Evacuation Recommendation Best assessment based on limited information Four nuclear power plants faced extraordinary challenges – extra large potential source term High levels of radiation detected Response by operators impeded Projected population doses could be large NRC recommended to the Administration to evacuate US citizens out to 50 miles

What do we know now? 7

What do we now know? 8

9

Conclusion Continuing confidence in safety of US fleet We are still learning about the event We will not hesitate to make changes to our regulatory and oversight activities, as appropriate 10

Unit 1 Sequence of Events 11

Unit 2 Sequence of Events 12

Unit 3 Sequence of Events 13

Unit 4 Sequence of Events 14