Seismic motion that exceeds the design-basis level was observed at the 
Kashiwazaki-Kariwa Nuclear Power Station during the Niigata-Chuetsu-oki 
Earthquake in 2007. Accordingly, separately from the seismic safety 
assessment, our company has decided to conduct a study on potential 
impact on safety-significant equipment representing functions of 
"shut-down", "cooling" and "containment", by comparing the observed 
seismic data of the above earthquake on the foundation mat of the reactor 
building of the Kashiwazaki-Kariwa Nuclear Power Station with the data of 
design-basis seismic motions of the Fukushima-Daiichi Nuclear Power Station 
and the Fukushima-Daini Nuclear Power Station.

As we have completed a summary report on a general study made in light 
of the Niigata-Chuetsu-oki Earthquake in 2007, we are now pleased to 
inform you about it. On the basis of the results of the above study, 
we consider that safety functions can be maintained with safety-significant 
equipment representing "shut-down", "cooling" and "containment" at the 
Fukushima-Daiichi and Fukushima-Daini Nuclear Power Stations.
The study results(not attached here) were reported to the Ministry of 
Economy, Trade and Industry today.

Our company will implement seismic safety assessment at the Fukushima-Daiichi 
Nuclear Power Station and the Fukushima-Daini Nuclear Power Station according 
to the seismic safety assessment implementation plan* which was reviewed on 
August 20. 
Also, at the Kashiwazaki-Kariwa Nuclear Power Station, while we will continue 
with geological surveys based on the subject earthquake, we will be proceeding 
with assessment of seismic safety including analyses of earthquake data observed.

* Seismic safety assessment implementation plan
  The above represents a summary of the seismic safety assessment plan to be 
  implemented in line with the earthquake resistant design review guidelines 
  concerning the power reactor facilities as revised in September 2006. With 
  respect to the procedure for assessment, a certain standard seismic ground 
  motion is to be established on the basis of geological and seismic survey 
  results, and seismic resistance assessment of the equipment and piping 
  systems is to be carried out from the seismic response analysis of the 
  equipment and buildings, etc, to the said standard seismic ground motion. 

Appendix: A summary of the "Report on the results of a general study of potential
          seismic impact on the main facilities of the nuclear power stations made
          on the basis of the observational data at the Kashiwazaki-Kariwa Nuclear
          Power Station"