*No update from the last release issued at 10:30 am, March 26th 

All 6 units of Fukushima Daiichi Nuclear Power Station have been shut down. 

Unit 1(Shut down) 
-Explosive sound and white smoke were confirmed after the big quake
 occurred at 3:36 pm Mar 12th. It was assumed to be hydrogen explosion.
-At approximately 2:30 am on March 23rd, seawater was started to be
 injected to the nuclear reactor through the feed water system.
-At approximately 10:50 am on March 24th, white fog-like steam arising
 from the roof part of the reactor building was observed.
-At approximately 11:30 am on March 24th, lights in the main control room
 was restored. 
-We had been injecting sea water into the reactor, but from 3:37 pm on
 March 25th, we started injecting fresh water into it. 

Unit 2(Shut down) 
-At approximately 6:00 am on March 15th, an abnormal noise began
 emanating from nearby Pressure Suppression Chamber and the pressure
 within this chamber decreased. 
-At 6:20 pm on March 21st, white smoke was confirmed arising from the top
 of the reactor building. As of 7:11 am on March 22nd, smoke decreased to
 the level to nearly non-existent.
-We have been injecting sea water into the reactor, but from 10:10 am on
 March 26th, we started injecting fresh water (with boric acid) into it.

Unit 3(Shut down) 
-Explosive sound and white smoke were confirmed at 11:01am March 4th. It
 was assumed to be hydrogen explosion.
-At 8:30am on March 16th, fog like steam was confirmed arising from the
 reactor building.
-At approximately 6:15 am on March 17th the pressure of the Suppression
 Chamber has temporarily increased. We were preparing to implement
 measures to reduce the pressure of the reactor containment vessel
 (partial discharge of air containing radioactive material to outside)
 in order to fully secure safety. However, at present, it is not a
 situation to immediately implement measures and discharge air containing
 radioactive material to outside. We will continue to monitor the status
 of the pressure of the reactor containment vessel.
-At approximately 4:00 pm, March 21st, light gray smoke was confirmed
 arising from the floor roof of the Unit 3 building. On March 22nd, the
 color of smoke changed to somewhat white and it is slowly dissipating.
-At approximately 10:45 pm on March 22nd, the light in the main control
 room was turned on.
-At around 4:20 pm on March 23rd, our staff confirmed light black smoke
 belching from the Unit 3 building. At approximately 11:30 pm on March
 23rd and 4:50 am on March 24th, our employee found no signs of smoke.
-We had been injecting sea water into the reactor pressure vessel, but
 from 6:02 pm on March 25th, we started injecting fresh water into it. 

Unit 4(outage due to regular inspection) 
-At approximately 6 am on March 15th, we confirmed the explosive sound
 and the sustained damage around the 5th floor rooftop area of the
 Nuclear Reactor Building.
-On March 15th and 16th, we respectively confirmed the outbreak of fire
 at the 4th floor of the northwestern part of the Nuclear Reactor Building.
 We immediately reported this matter to the fire department and the
 related authorities. TEPCO employees confirmed that each fire had already
 died down by itself.
-At this moment, we do not consider any reactor coolant leakage inside
 the reactor happened. 

Unit 5(outage due to regular inspection) 
-Sufficient level of reactor coolant to ensure safety is maintained.
-At 5 am, March 19th, we started the Residual Heat Removal System Pump (C)
 in order to cool the spent fuel pool.
-At 2:30 pm, March 20th, the reactor achieved reactor cold shutdown. At
 around 5:24 pm on March 23rd, when we switched the temporary Residual
 Heat Removal System Seawater Pump, it has stopped automatically. At
 around 4:14 pm, March 24th we replaced the pump, and restarted cooling of
 reactor at around 4:35 pm.
-At this moment, we do not consider any reactor coolant leakage inside the
 reactor containment vessel happened. 

Unit 6(outage due to regular inspection) 
-Sufficient level of reactor coolant to ensure safety is maintained.
-We completed the repair work on the emergency diesel generator (A).
-At 10:14 pm, March 19th, we started the Residual Heat Removal System Pump
 (B) of Unit 6 in order to cool the spent fuel pool.
-At 7:27 pm, March 20th, the reactor achieved reactor cold shutdown.
-In relation to the two seawater side pumps of the Residual Heat Removal
 System, we switched the power source from temporary to permanent at 3:38
 PM and 3:42PM, Mar 25 respectively.
-At this moment, we do not consider any reactor coolant leakage inside the
 reactor containment vessel happened. 

Today's work for cooling the spent fuel pools 
-We are considering further spraying at other units and subject to the
 conditions of spent fuel pools. 

Casualty 
-2 workers of cooperative firm were injured at the occurrence of the
 earthquake, and were transported to the hospital on March 11th.
-Presence of 2 TEPCO employees at the site is not confirmed on March 11th.
-1 TEPCO employee who was not able to stand by his own holding left chest
 with his hand, was transported to the hospital by an ambulance on March
 12th. 
-4 workers were injured and transported to the hospital after explosive
 sound and white smoke were confirmed around the Unit 1on March 12th.
-1 subcontract worker at the key earthquake-proof building was unconscious
 and transported to the hospital by an ambulance on March 12th.
-The radiation exposure of 1 TEPCO employee, who was working inside the
 reactor building, exceeded 100mSv and he was transported to the hospital
 on March 12th.
-2 TEPCO employees felt bad during their operation in the central control
 rooms of Unit 1 and 2 while wearing full masks, and were transferred to
 Fukushima Daini Nuclear Power Station for consultation with a medical
 advisor on March 13th.
-11 workers were injured and transported to Fukushima Daini Nuclear Power
 Station etc. after explosive sound and white smoke were confirmed around
 the Unit 3. One of the workers was transported to the Fukushima Medical
 University Hospital on March 14th.
-At approximately 10 pm on March 22nd, 1 worker who had been working on
 setting up a temporary power panel in the common pool was injured and
 transported to Fukushima Daini Nuclear Power Station where the industrial
 doctor is.
-At approximately 1:30 am on March 23rd, 1 worker who had been working on
 transporting a temporary power panel in the common pool was injured and
 transported to Fukushima Daini Nuclear Power Station where the industrial
 doctor is.
-On March 24th, it was confirmed that 3 workers from cooperative companies
 who were in charge of cable laying work in the 1st floor and the
 underground floor of turbine building were exposed to the radiation dose
 of more than 170 mSv. 2 of them were confirmed that their skins on legs
 were contaminated. Although they were decontaminated, since there was a
 possibility of beta ray burn injury, they were transferred to Fukushima
 Medical University Hospital. The third worker was also transferred to
 Fukushima Medical University Hospital on March 25th. After that, the 3
 workers were transferred to National Institute of Radiological Sciences
 in Chiba Prefecture.
 Regarding this event, TEPCO has reported to the related government
 ministries and agencies on measures to be taken to assure appropriate
 radiation dose control and radiation exposure related operations.
 Before today's restoration work, we will make notification to the 
 concerned parties and continue to take all possible measures to future
 management. 

Others 
-We measured radioactive materials (iodine etc.) inside of the nuclear
 power station area (outdoor) by monitoring car and confirmed that
 radioactive materials level is getting higher than ordinary level. As
 listed below, we have determined that specific incidents stipulated in
 article 15, clause 1 of Act on Special Measures Concerning Nuclear
 Emergency Preparedness (Abnormal increase in radiation dose measured at
 site boundary) have occurred.
 ·Determined at 4:17 pm Mar 12th (Around Monitoring Post 4)
 ·Determined at 8:56 am Mar 13th (Around Monitoring Post 4)
 ·Determined at 2:15 pm Mar 13th (Around Monitoring Post 4)
 ·Determined at 3:50 am Mar 14th (Around Monitoring Post 6)
 ·Determined at 4:15 am Mar 14th (Around Monitoring Post 2)
 ·Determined at 9:27 am Mar 14th (Around Monitoring Post 3)
 ·Determined at 9:37 pm Mar 14th (Around main entrance)
 ·Determined at 6:51 am Mar 15th (Around main entrance)
 ·Determined at 8:11 am Mar 15th (Around main entrance)
 ·Determined at 4:17 pm Mar 15th (Around main entrance)
 ·Determined at 11:05 pm Mar 15th (Around main entrance)
 ·Determined at 8:58 am Mar 19th (Around MP5)
 From now on, if the measured figure fluctuates and goes above and below
 500 micro Sv/h, we deem that as the continuous same event and will not
 regard that as a new specific incidents stipulated in article 15, clause 1
 of the Act on Special Measures Concerning Nuclear Emergency Preparedness
 (Abnormal increase in radiation dose measured at site boundary) has
 occurred. In the interim, if we measure a manifestly abnormal figure and
 it is evident that the event is not the continuous same event, we will
 determine and notify.

-The national government has instructed evacuation for those local
 residents within 20km radius of the periphery and evacuation to inside for
 those residents from 20km to 30km radius of the periphery, because it is
 possible that radioactive materials are discharged.
-At approximately 10am on March 15th, we observed 400mSv/h at the inland
 side of the Unit 3 reactor building and 100mSv/h at the inland side of the
 Unit 4 reactor building.
-At around 10:37 am March 21st, water spraying to common spent fuel pool
 and finished at 3:30 pm (conducted by TEPCO).
-At around 3:37 pm, March 24th, electricity supply to common spent fuel
 pool has started from external power source. At around 6:05 pm, fuel pool
 cooling pump was started to cool the pool.
-We found no signs of abnormal situation for the casks by visual
 observation during the patrol activity. A detailed inspection is under
 preparation.
-At Units 5 and 6, in order to prevent hydrogen gas from accumulating
 within the buildings, we have made three holes on the roof of the reactor
 building for each unit.
-In total 12 fire engines are lent for the water spraying to the spent fuel
 pools and water injection to the nuclear reactors by various regional fire
 departments* as well as Tokyo Fire Department. Also, instruction regarding
 the setting and operation of large scale decontamination system was
 provided by Niigata City Fire Headquarter and Hamamatsu City Fire
 Headquarter.
*: Koriyama Fire Department, Iwaki Fire Brigade Headquarters, Fire
 Headquarters of Sukagawa District Wide Area Fire-fighting Association,
 Yonezawa City Fire Headquarters, Utsunomiya City Fire Headquarters, Fire
 Headquarters of Aizu-Wakamatsu wide area municipal association, Saitama
 City Fire Bureau, and Niigata City Fire Bureau.
-By March 22nd, Units 1 through 6 were started to be energized from the
 external power source.
-We will continue to take all measures to ensure the safety and to continue
 monitoring the surrounding environment around the Power Station.