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Press Release (Mar 12,2011)
Impact to TEPCO's Facilities due to Miyagiken-Oki Earthquake (as of 9PM)
 
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 20km radius of the site periphery. 
* The value of radioactive material (iodine, etc) is increasing according 
to the monitoring car at the site (outside of the site). One of the 
monitoring posts is also indicating higher than normal level.
* Since the amount of radiation at the boundary of the site exceeds the 
limits, we decide at 4:17PM and we have reported and/or noticed the 
government agencies concerned to apply the clause 1 of the Article 15 of 
the Radiation Disaster Measure at 5PM.
* In addition, a vertical earthquake hit the site and big explosion has 
happened near the Unit 1 and smoke breaks out around 3:36PM.
Our two employees and two cooperation workers who had been working for 
the foundation of safety are suffered and they are all sent to the 
hospital.
* We started injection of sea water into the reactor core of Unit 1 at
8:20pm and then boric acid subsequently. 
* We continue endeavoring to secure the safety that all we can do and 
monitoring the periphery. 
 
Fukushima Daini Nuclear Power Station:
 Units 1 to 4: shutdown due to earthquake
* The national government has instructed evacuation for those local 
residents within 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, 2 and 3 and 
accordingly, we have reported and/or noticed the government agencies 
concerned. 
* Unit 3 has been stopped and being "nuclear reactor cooling hot stop" at
12:15PM.
* The operator trapped in the crane operating console of the exhaust stack 
was transferred to the ground at 5:13PM and confirmed the death at 5:17PM.
 
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]
* All the stations 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 0.45 million households are out of power. 
 Tokyo: 0 
 Kanagawa Pref.: 0 
 Tochigi Pref.: 7,489 
 Chiba Pref.: 2,372 
 Saitama Pref: 534 
 Gunma Pref.: 0 
 Ibaraki Pref: 438,536 
 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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