No. 1 reactor
September 24, 2011
Hydrogen has accumulated to a level higher than previously thought in pipes connected to the No. 1 reactor containment vessel at the Fukushima No. 1 nuclear power plant, the...
September 03, 2011
Japan's nuclear regulator has acknowledged it did not provide the prime minister's office with vital information about the state of the No. 1 reactor at the stricken Fukushima...
August 10, 2011
TEPCO began assembling a cover on Aug. 10 to be installed over the No. 1 reactor building at its Fukushima No. 1 nuclear power plant to contain leakage of radioactive materials.
June 27, 2011
Tokyo Electric Power Co. saw signs that a hydrogen explosion was possible at the No. 1 reactor of the Fukushima No. 1 nuclear power plant the night before the explosion...
June 17, 2011
Despite the orders of Masao Yoshida, head of the Fukushima No. 1 nuclear power plant, venting of reactors and injections of water did not proceed smoothly in the early stage of ...
June 06, 2011
Contrary to what it said last week, Tokyo Electric Power Co. (TEPCO) now believes that it is unlikely that the March 12 hydrogen explosion at the No. 1 reactor building of the...
June 04, 2011
A design flaw in the exhaust system within the reactors at the Fukushima No. 1 nuclear power plant may have caused a hydrogen explosion at the No. 1 reactor March 12 that blew...
May 24, 2011
Tokyo Electric Power Co. has belatedly admitted that most nuclear fuel likely melted and dropped to the bottom of the pressure vessels of two other reactors at the Fukushima No....
May 18, 2011
Tokyo Electric Power Co. is sticking to its goal of stabilizing the crippled Fukushima No. 1 nuclear power plant by July despite radical revisions to its initial strategy after ...
May 18, 2011
A whiteboard in the central control room for the No. 1 and No. 2 reactors at the Fukushima No. 1 nuclear power plant was quickly filled with short memos in the hours after the...
May 17, 2011
Q: What does this talk of a "meltdown" at the No. 1 reactor of the Fukushima No. 1 nuclear power plant mean?
May 16, 2011
Tokyo Electric Power Co. has been forced to devise a difficult new step to cool a reactor at the stricken Fukushima No. 1 nuclear plant after its attempt to flood the pressure...
May 10, 2011
Workers entered the No. 1 reactor building at the crippled Fukushima No. 1 nuclear power plant on May 10 to begin the process of cooling the reactor.
May 05, 2011
The Tokyo Electric Power Co. will start operating a cooling system by the end of May for the Fukushima No. 1 nuclear plant's No. 1 reactor, the utility company said May 4.
May 04, 2011
Tokyo Electric Power Co. is installing six ventilators designed to lower radiation levels and allow for work inside a contaminated reactor building at the crippled Fukushima No....
April 25, 2011
Tokyo Electric Power Co. started the unprecedented and potentially risky measure of allowing water to flood the containment vessels of three troubled reactors at the Fukushima...
April 25, 2011
High levels of radiation were detected on the grounds of the Fukushima No. 1 nuclear power plant one month after hydrogen explosions spewed radioactive materials, according to...
April 19, 2011
High levels of radiation discovered at the Fukushima No. 1 nuclear power plant could disrupt Tokyo Electric Power Co.'s timeline for a cold shutdown of the crippled facility,...
April 15, 2011
Tokyo Electric Power Co. said a failure of communication may have been partly responsible for the exposure of workers to dangerous levels of radiation near the quake-damaged...
April 11, 2011
A Tokyo Fire Department chief leading a crew to spray water on reactors of the hobbled nuclear power plant in Fukushima Prefecture called the operation “a race against time...