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10:09: TEPCO confirms that a small amount of vapor has been released into the air to release pressure in reactor unit 1 at Fukushima I. [19] 10:58: Pressure remains too high inside reactor unit 2 at Fukushima I. In order to alleviate some of this pressure, a decision is made to vent radioactive vapor into the air. [19]
[17] [18] To replenish the water, the contained pressure would have to be lowered first by opening a valve of the vessel. The unit's air flow gauge was accidentally turned off and, with the gauge turned off, flow of water into the reactor was blocked leading to full exposure of the rods. Water was later pumped into Unit 2 again by 04:11 JST. [19]
The Fukushima nuclear accident was a major nuclear accident at the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fukushima, Japan, which began on 11 March 2011. The proximate cause of the accident was the 2011 Tōhoku earthquake and tsunami , which resulted in electrical grid failure and damaged nearly all of the power plant's backup energy ...
Japan on Monday marked 13 years since a massive earthquake and tsunami hit the country’s northern coasts. Nearly 20,000 people died, whole towns were wiped out and the Fukushima Daiichi nuclear ...
About 20,000 of more than 160,000 evacuated residents across Fukushima still haven't returned home. Decontamination work before the Tokyo Olympics meant to showcase Fukushima’s recovery led to the elimination of some no-go zones, but they remain in seven of 12 towns that had been fully or partially off-limits.
The 9.0 magnitude quake and tsunami that ravaged parts of Japan’s northeastern coast on March 11, 2011 killed about 20,000 people and drove thousands from their homes in the prefectures of ...
Units 1 through 4 at the plant. At the time of the earthquake, Unit 4 had been shut down for shroud replacement and refueling since 29 November 2010. [1] [2] All 548 fuel assemblies had been transferred in December 2010 from the reactor to the spent fuel pool on an upper floor of the reactor building [3] where they were held in racks containing boron to damp down any nuclear reaction. [4]
Although there was no change in the afternoon, TEPCO said that radiation levels did not change, and the reactor was still cooled. [61] According to TEPCO rain could have found its way to the primary containment of the reactor, and because this vessel was still hot, it could cause the steam. [62] The next day at 7:55 a.m. the steam was gone.