Nuclear and radiation accidents and incidents - Wikipedia

https://en.wikipedia.org/wiki/Nuclear_and_radiation_accidents_and_incidents

The worst nuclear accident to date was the Chernobyl disaster which occurred in 1986 in Ukraine.The accident killed 31 people directly and damaged approximately $7 billion of property. A study published in 2005 by the World Health Organization estimates that there may eventually be up to 4,000 additional cancer deaths related to the accident among those exposed to significant radiation levels.

List of military nuclear accidents - Wikipedia

https://en.wikipedia.org/wiki/List_of_military_nuclear_accidents

Nuclear test accident The Castle Bravo fallout pattern. During the Castle Bravo test of the first deployable hydrogen bomb, a miscalculation resulted in the explosion being over twice as large as predicted, with a total explosive force of 15 megatons of TNT (63 PJ). Of the total yield, 10 Mt (42 PJ) were from fission of the natural uranium tamper, but those fission reactions were quite dirty ...

1961 Goldsboro B-52 crash - Wikipedia

https://en.wikipedia.org/wiki/1961_Goldsboro_B-52_crash

The 1961 Goldsboro B-52 crash was an accident that occurred near Goldsboro, North Carolina, on 23 January 1961.A Boeing B-52 Stratofortress carrying two 3–4-megaton Mark 39 nuclear bombs broke up in mid-air, dropping its nuclear payload in the process. The pilot in command, Walter Scott Tulloch, ordered the crew to eject at 9,000 feet (2,700 m). Five crewmen successfully ejected or bailed ...

Fukushima accident | Summary, Effects, & Facts | Britannica

https://www.britannica.com/event/Fukushima-accident

Fukushima accident, also called Fukushima nuclear accident or Fukushima Daiichi nuclear accident, accident in 2011 at the Fukushima Daiichi (“Number One”) plant in northern Japan, the second worst nuclear accident in the history of nuclear power generation. The site is on Japan’s Pacific coast, in northeastern Fukushima prefecture about 100 km (60 miles) south of Sendai.

Chernobyl Accident - World Nuclear Association

https://www.world-nuclear.org/.../safety-of-plants/chernobyl-accident.aspx

The Chernobyl disaster was a unique event and the only accident in the history of commercial nuclear power where radiation-related fatalities occurred e. The design of the reactor is unique and in that respect the accident is thus of little relevance to the rest of the nuclear industry outside the then Eastern Bloc. However, it led to major changes in safety culture and in industry cooperation ...

A Brief History of Nuclear Accidents Worldwide | Union of ...

https://www.ucsusa.org/resources/brief-history-nuclear-accidents-worldwide

The accident began with failures in the non-nuclear secondary system, followed by a human-operated relief valve in the primary system that stuck open, which allowed large amounts of nuclear reactor coolant to escape. Plant operators’ initial failure to correctly identify the problem compounded it. In particular, a hidden indicator light led to an operator manually overriding the automatic ...

Chernobyl disaster - Wikipedia

https://en.wikipedia.org/wiki/Chernobyl_disaster

The Chernobyl disaster was a nuclear accident that occurred on Saturday 26 April 1986, at the No. 4 reactor in the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR. It is considered as the worst nuclear disaster in history both in terms of cost and casualties., and was one of only two nuclear energy accidents rated at seven—the maximum severity—on ...

Fukushima Daiichi Accident - World Nuclear Association

https://world-nuclear.org/.../safety-of-plants/fukushima-daiichi-accident.aspx

The death toll directly due to the nuclear accident or radiation exposure remained zero, but stress and disruption due to the continuing evacuation remains high. Tokyo’s Board of Audit reported in October 2013 that 23% of recovery funding – about ¥1.45 trillion ($14.5 billion) – had been misappropriated. Some 326 out of about 1400 projects funded had no direct relevance to the natural ...

Windscale fire | nuclear accident, Cumbria, United Kingdom ...

https://www.britannica.com/event/Windscale-fire

Windscale fire, accident in 1957 at the Windscale nuclear reactor facility and plutonium-production plant in the county of Cumberland (now part of Cumbria), in northwestern England, that was the United Kingdom’s most serious nuclear power accident. The Windscale plant consisted of two gas-cooled nuclear reactors. The accident occurred on October 8, 1957, when a routine heating of the No. 1 ...

World Nuclear Association - World Nuclear Association

https://www.world-nuclear.org

As work to decommission the damaged Fukushima Daiichi nuclear power plant and revitalise the surrounding area continues, there are many ways international communities can learn, assist Japan and support each other, according to a new report from OECD Nuclear Energy Agency. Published today, ahead of the 10th anniversary of the disaster, the report summarises the circumstances of the accident ...