Fukushima Daiichi
PCV Gas Control System

Problems shut down Fukushima Unit 2 noble gas detection system and spent fuel cooling systems

TEPCO began constant monitoring of noble gas in the PCV of Reactor 2 on February 19th,  as they were decreasing the amount of water from the core spray system.  Even though a nuclear…

Tsunami hitting Fukushima Daiichi

Scientists first study of tsunami impact around Fukushima Daiichi shows waves over 21 meters hit coast

Earlier this month, Japanese scientists warned that the Fukushima Daiichi nuclear station was at a greater risk from future earthquakes than previously estimated.   The March 11th earthquake was the most powerful known earthquake ever…


Officials alarmed at radioactivity levels found at quarry near Namie – Over 210,000 bq/kg

Massive levels of radioactive cesium have been detected from gravel at a quarry near the crippled Fukushima nuclear plant, after high radiation was detected at buildings using gravel from the same quarry, prefectural…


Tokyo Bay residents worried as concentrations of radioactivity found in riverbed

Near the mouth of the Sumida River in Arakawa-ku, flowing into the Tokyo Bay, the Ministry of the Environment has been testing the concentration of radioactivity in water and mud of the riverbed….


Japanese Environment Ministry spreading “objective data” about debris in brochures

Many  local governments need to tackle the difficult task of obtaining the consent of local residents, who fear the debris may be contaminated with radioactive substances.  So to help assist the Environment Ministry created…


Why Fukushima is at a greater seismic risk now than it was one year ago

The great Tohoku-oki earthquake (Mw 9.0) occurred on 11 March 2011 in the NE Japan forearc region and it was the largest recorded earthquake ever to hit Japan.   However a newly released study…

FD 233

Japanese officials admit nuclear safety rules defective in many ways

The head of the government’s nuclear safety commission says  the government guidelines for nuclear safety are defective in many ways and need to be reviewed.  He apologized for insufficient wording in the guidelines for…


Scientists warn of massive new earthquake from activated faults around Fukushima Daiichi

Scientists have issued a dire warning that the damaged Fukushima nuclear plant is at risk of a massive new earthquake, and now scientists are telling Japanese authorities to urgently shore up the damaged reactor…

Reactor 4 at Fukushima Daiichi 

100 people in nursing home 40 km from Fukushima Daiichi left behind

IN the radioactive ghost town of Iitate, about 100 people have been left behind amid the nuclear fallout from last March’s earthquake and tsunami. Most are suffering Alzheimer’s disease or dementia. While they are…

Diagram of Unit 2 Historical Data

Reactor 2 temperature levels confirmed to exceed conditions for cold shutdown

Temperature levels at Fukushima Daiichi Reactor 2 have exceeded 90 degrees Celsius.  TEPCO said that it does not know why the temperature is rising. If the temperature is confirmed to exceed 80 degrees,…

It was found that maps of onsite radiation doses at Fukushima Daiichi had been provided to the United States Nuclear Regulatory Commission more than one month before they were publicly disclosed.  

TEPCO NISA and METI sent information to United States and other international counterparts prior to public disclosure

Temperatures at Fukushima Daiichi Reactor 2 continue to rise

Fukushima Workers Loading

Report says risk of terrorism greater after Fukushima – Backgrounds of workers necessary

The Japanese government continues to strengthen it’s prospects of providing electricity from nuclear power in Japan, when a commission proposed that the government introduce background checks on workers at nuclear stations.   Japan…


Firewood in Myagi Prefecture found Cesium 18x over legal limits – Ash 7x over

In the southern part of Miyagi Prefecture, firewood inspected by the Ministry of the Environment was found to contained radioactive cesium 18 times the maximum allowable levels for firewood in Japan.  The ash…

Japan Forgets Nuclear Power

Tokyo citizens group close to number of signatures required for nuclear referendum

A group of citizens said Thursday that it has collected some 250,000 signatures in Tokyo, enough to call for an ordinance for a referendum on whether to keep using nuclear power. If the…

Article just published map dose radioactive contamination of tellurium and silver

70 uSv/hr recorded in city hosting waste dump on municipal baseball field

In a municipal baseball field approximately 3 km from Fukushima Daiichi, temporary workers store bags of radioactive waste in the open air.  Workers wear heavy outfits and masks and told the Yomiuri reporters…

Reactor 4 South Side Iron Truss Roof Dismantling

TEPCO to perform underwater surveys of Fukushima Reactor 4 Spent Fuel Pool

TEPCO will send an underwater camera into the spent fuel pool at Fukushima Reactor 4, to aid in understanding the current state of the fuel and structure.  The operation will take place on…

Tsunami Outdoor Damagee

Researchers first trip into Fukushima no-entry zone finds tsunami may have been over 21 meters

Researchers including Shinji Sato, a professor at the University of Tokyo, obtained permission from local governments to enter this zone, and for the first time since the tsunami, were able to survey coastal…

Radiation shelter and shielding wall

Fukushima disaster highlighted the dangers of spent fuel pools in nuclear reactor buildings

Hiroshi Tasaka was a former special adviser to Naoto Kan, who was prime minister when the Fukushima Daiichi crisis started.  He was one of a select group who glimpsed the secret worst-case scenario document…

South Side of Fukushima Daiichi Reactor 3

Workers at Fukushima Daiichi suffered side effects after taking potassium iodide

TEPCO released some more information regarding the Potassium Iodide pills that were handed out after the Fukushima Daiichi nuclear disaster.  This week Japanese newspapers released information showing that over 17,500 pills had been…

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