We have been conducting seismic safety evaluation along with the revision 
(hereafter "New Guide") of "Regulatory Guide for Reviewing Seismic Design 
of Nuclear Power Reactor Facilities", based on the instruction* from 
Ministry of Economy, Trade and Industry, and Nuclear and Industrial Safety 
Agency. We compiled the interim report of seismic safety evaluation of the 
reactor building and major S class facilities which have important roles 
for safety in Unit 2 of Fukushima Daini Nuclear Power Station, and 
submitted it to Nuclear and Industrial Safety Agency (hereafter "NISA").
                (Previously announced on April 3, 2009, and April 19, 2010)
 
-Interim Report concerning Seismic Safety Evaluation along with the 
 revision of "Regulatory Guide for Reviewing Seismic Design of Nuclear 
 Power Reactor Facilities" of Fukushima (Revision, submitted on April 3, 
 2009)
-Interim Report concerning Seismic Safety Evaluation along with the 
 revision of "Regulatory Guide for Reviewing Seismic Design of Nuclear 
 Power Reactor Facilities" of Fukushima (2nd Revision, submitted on April 
 19, 2009)
 
After the submission of the interim report, in the process of the further 
evaluation we continued, we found that some errors in the analysis model 
used for the evaluation and therefore evaluation results of 2 out of 7 
facilities covered in the interim report needs correction. We reported the 
above to NISA accordingly.
We confirmed that the corrected evaluation results also show there are no 
seismic safety issues and that there are no similar problems in other 
plants of TEPCO.
 
○ Attachment
-Partial Correction of Interim Report (revision) concerning Seismic Safety 
 Evaluation of Unit 2 in Fukushima Daini Nuclear Power Station (PDF 15.6KB) 
 
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*Instruction from Ministry of Economy, Trade and Industry, and Nuclear and 
Industrial Safety Agency
We have provided a Japanese press release version of the instruction 
document received from NISA. However, at this time we have reserved the 
right to not provide an English version due to potential misunderstandings 
that may arise from an inaccurate rendering of the original Japanese text. 
We may provide the English translation that NISA releases in our press 
releases. However, in principle we would advise you to visit the NISA 
website for timely and accurate information.