User:DanniDK

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Currently my interests revolve around stuff like world population, climate and CO2. My contributions are mostly ad-hoc edits and corrections.

Unit 4 reactor site of the Fukushima Daiichi nuclear power plant
Development according to IAEA as of : 22:30 UTC(tue, 15), 07:30 JST(mon, 16)

14:10 UTC(tue, 15), 23:10 JST(tue, 15)

IAEA: "A fire at Unit 4 occurred on 14 March 23:54 UTC and lasted two hours. The IAEA is seeking clarification on the nature and consequences of the fire."

07:35 UTC(tue, 15), 16:35 JST(tue, 15)

IAEA: "Japanese authorities have confirmed that the fire at the spent fuel storage pond at the Unit 4 reactor of Fukushima Daiichi nuclear power plant was extinguished on 15 March at 02:00 UTC."

05:15 UTC(tue, 15), 14:35 JST(tue, 15)

IAEA: "Japanese authorities also today informed the IAEA at 04:50 CET that the spent fuel storage pond at the Unit 4 reactor of the Fukushima Daiichi nuclear power plant is on fire and radioactivity is being released directly into the atmosphere."

02:35 UTC(tue, 15), 11:35 JST(tue, 15)

IAEA: "Japanese authorities have also informed the IAEA that teams of experts from Tokyo Electric Power Company (TEPCO), the plant's operator, are working to restore cooling in the reactor Unit 4 and bring it to cold shutdown."

02:00 UTC(tue, 15), 11:00 JST(tue, 15)

Fire at the spent fuel storage pond at the Unit 4 reactor of Fukushima Daiichi nuclear power plant extinguished, according to later IAEA-statement.

23:54 UTC(mon, 14), 08:54 JST(tir, 15)

A fire at Unit 4 occured and lasted two hours, according to later IAEA-statement.

Reference: IAEA Update on Japan Earthquake

Fire at Unit 4 Tuesday morning (08:54 JST) - Ignited by oil, water-system lubricant
"Firefighters attempted to extinguish a fire that erupted Wednesday in the outer housing of the containment vessel at reactor 4. An earlier fire, reportedly caused when some water-system lubricant ignited, was put out Tuesday. Reactor 4 remains without the power needed to irrigate its spent fuel pools, which hold an entire off-loaded fuel core. The core has heated up, releasing hydrogen that detonated, blowing holes in the roof of the containment building. Engineers may use helicopters to dump water into the pools to cool the fuel. A dreaded zirconium fire is possible if the fuel has been exposed for too long. Such a disaster would create levels of radioactivity thousands of times higher than the levels currently measured at the site." Japan's nuclear emergency - Damage at Daiichi

"Tokyo Electric Power Co. said that an oil leak in a cooling water pump at Unit 4 was the cause of a fire that burned for approximately 140 minutes. The fire was not in the spent fuel pool, as reported by several media outlets. Unit 4 was in a 105-day-long maintenance outage at the time of the earthquake and there is no fuel in the reactor." Information on the Japanese Earthquake and Reactors in That Region