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Press Release (Mar 12,2011)
Impact to TEPCO's Facilities due to Miyagiken-Oki Earthquake (as of 10AM)
 
Below is major impact to TEPCO's facilities due to the Miyagiken-Oki 
Earthquake that occurred yesterday at 2:46PM. 
*new items are underlined
 
[Nuclear Power Station]
Fukushima Daiichi Nuclear Power Station:
  Units 1 to 3: shutdown due to earthquake
  Units 4 to 6: outage due to regular inspection 
* The national government has instructed evacuation for those local 
residents within 10km radius of the periphery. 
* Measurement of radioactive material (Iodine, etc.) by monitoring car 
indicates increasing value compared to normal level. One of the 
monitoring posts is also indicating higher than normal level. We will 
continue monitoring discharge of radioactive material from exhaust stack 
and discharge canal, etc. 
* Considering the increasing pressure with in the reactor containment 
vessel of Unit 1, the national government has instructed us to 
implement measures to reduce the pressure of the reactor containment 
vessel (partial discharge of air containing radioactive materials) in 
order to fully secure safety. 
 
Fukushima Daini Nuclear Power Station:
  Units 1 to 4: shutdown due to earthquake 
* The national government has instructed evacuation for those local 
residents within 3km radius of the periphery and indoor standby for those 
local residents between 3km and 10km radius of the periphery. 
* At present, we have decided to prepare implementing measures to reduce 
the pressure of the reactor containment vessel (partial discharge of air 
containing radioactive materials) in order to fully secure safety.
These measures are considered to be implemented in Units 1 to 4 and 
accordingly, we have reported and/or noticed the government agencies 
concerned. 
 
Kashiwazaki Kariwa Nuclear Power Station:
  Units 1, 5, 6, 7: normal operation
  Units 2 to 4: outage due to regular inspection
 
[Thermal Power Station]
Hirono Thermal Power Station Units 2 and 4: shutdown due to earthquake
Hitachinaka Thermal Power Station Unit 1: shutdown due to earthquake
Kashima Thermal Power Station Units 2, 3, 5, 6: shutdown due to earthquake
Ohi Thermal Power Station Units 2, 3: shutdown due to earthquake
Higashi-Ohgishima Thermal Power Station Unit 1: shutdown due to earthquake
 
[Hydro Power Station]
 5 stations in Fukushima Prefecture were shutdown due to earthquake. 
Power stations in Yamanashi Prefecture have been restored.
 
[Transmission System, etc.]
 5 substations shown below have been shutdown: 
- Naka Substation
- Shin Motegi Substation
- Joban Substation
- Ibaraki Substation
- Nishi Mito Substation
 
[Blackout in TEPCO's Service Area]
 Total of about 1 million households are out of power. 
 Tokyo: 0
 Kanagawa Pref.: 5,533 
 Tochigi Pref.: 214,817 
 Chiba Pref.: 134,611 
 Saitama Pref: 0 
 Gunma Pref.: 0 
 Ibaraki Pref: 642,657 
 Yamanashi Pref: 0 
 Shizuoka Pref: 0 (east of Fuji River) 
  
[Supply and Demand Status within TEPCO's Service Area to Secure Stable 
Power Supply] 
Backup supply from Shinshinano Conversion Station: 600MW
Backup supply from Sakuma Conversion Station: 300MW
Backup supply from Higashi Shimizu Conversion Station: 100MW
 
Because TEPCO's facilities have been seriously damaged, power shortage 
may occur.
TEPCO appreciates customers' cooperation in reducing electricity usage by 
avoiding using unnecessary lighting and electrical equipment.
 
We are taking all measures to restore power, however, we expect extremely 
difficult situation in power supply for tomorrow as well.
We kindly ask our customers to cooperate with us in reducing usage of 
power.
 
Please do NOT touch cut-off electric wires. 
 
* Revised past progress 
 
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