Fukushima exclusion zone

E790337

disaster-affected area evacuation zone exclusion zone radioactively contaminated area

The Fukushima exclusion zone is a restricted area surrounding the Fukushima Daiichi Nuclear Power Plant, established after the 2011 nuclear disaster due to high levels of radioactive contamination.

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All labels observed (3)

Label	Occurrences
Fukushima Daiichi nuclear disaster evacuation zone (historically)	1
Fukushima exclusion zone canonical	1
Fukushima nuclear evacuation zone	1

How this entity was disambiguated

This entity first appeared as the object of triple T9296255 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Fukushima exclusion zone
Context triple: [Ōkuma, Fukushima Prefecture, partOf, Fukushima exclusion zone]

A. Fukushima
Fukushima is a city in Japan’s Tohoku region, known as the capital of Fukushima Prefecture and for its role in agriculture, hot springs, and regional administration.
B. Chernobyl Exclusion Zone
The Chernobyl Exclusion Zone is a heavily contaminated, restricted area surrounding the Chernobyl Nuclear Power Plant, established after the 1986 disaster to limit radiation exposure and monitor environmental and health impacts.
C. Belarusian Exclusion Zone
The Belarusian Exclusion Zone is a heavily contaminated, largely uninhabited area in southern Belarus established after the 1986 Chernobyl nuclear disaster to restrict access and limit radiation exposure.
D. Fukushima Daiichi Nuclear Power Plant
Fukushima Daiichi Nuclear Power Plant is a coastal Japanese nuclear power station in Ōkuma, Fukushima Prefecture, widely known as the site of the 2011 reactor meltdowns following a massive earthquake and tsunami.
E. Minamigata area
Minamigata area is a district in Osaka, Japan, known as a local residential and commercial neighborhood served by Nishinakajima-Minamigata Station.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Fukushima exclusion zone
Target entity description: The Fukushima exclusion zone is a restricted area surrounding the Fukushima Daiichi Nuclear Power Plant, established after the 2011 nuclear disaster due to high levels of radioactive contamination.

A. Fukushima
Fukushima is a city in Japan’s Tohoku region, known as the capital of Fukushima Prefecture and for its role in agriculture, hot springs, and regional administration.
B. Chernobyl Exclusion Zone
The Chernobyl Exclusion Zone is a heavily contaminated, restricted area surrounding the Chernobyl Nuclear Power Plant, established after the 1986 disaster to limit radiation exposure and monitor environmental and health impacts.
C. Belarusian Exclusion Zone
The Belarusian Exclusion Zone is a heavily contaminated, largely uninhabited area in southern Belarus established after the 1986 Chernobyl nuclear disaster to restrict access and limit radiation exposure.
D. Fukushima Daiichi Nuclear Power Plant
Fukushima Daiichi Nuclear Power Plant is a coastal Japanese nuclear power station in Ōkuma, Fukushima Prefecture, widely known as the site of the 2011 reactor meltdowns following a massive earthquake and tsunami.
E. Minamigata area
Minamigata area is a district in Osaka, Japan, known as a local residential and commercial neighborhood served by Nishinakajima-Minamigata Station.
F. None of above. chosen

Statements (50)

Predicate	Object
instanceOf	disaster-affected area ⓘ evacuation zone ⓘ exclusion zone ⓘ radioactively contaminated area ⓘ
administeredBy	Fukushima Prefectural Government ⓘ linked to: Fukushima Prefectural authorities Government of Japan ⓘ
allows	decontamination work ⓘ infrastructure maintenance ⓘ limited supervised visits ⓘ
appliesTo	areas with annual radiation dose exceeding 20 millisieverts ⓘ
comparedTo	Chernobyl Exclusion Zone ⓘ
country	Japan ⓘ
createdAfter	2011 Tōhoku earthquake and tsunami ⓘ Fukushima Daiichi nuclear disaster ⓘ
environmentalImpact	forest and wildlife exposure to radiation ⓘ long-term soil contamination ⓘ
hasPart	difficult-to-return zones ⓘ evacuation order cancellation preparation zones ⓘ restricted residence zones ⓘ
locatedIn	Fukushima Prefecture ⓘ Futaba ⓘ Futaba District ⓘ Honshu ⓘ Iitate ⓘ Katsurao ⓘ Kawamata ⓘ Minamisoma ⓘ linked to: Minamisōma Namie ⓘ Okuma ⓘ Tamura ⓘ Tomioka ⓘ Tōhoku region ⓘ linked to: Tohoku
mainHazard	cesium-134 contamination ⓘ cesium-137 contamination ⓘ plutonium traces ⓘ strontium contamination ⓘ
originalRadius	12 miles ⓘ 20 kilometres ⓘ
populationStatus	largely evacuated ⓘ long-term displaced residents ⓘ
reasonForRestriction	high levels of radioactive contamination ⓘ risk of radiation exposure ⓘ
regulates	entry of journalists ⓘ entry of researchers ⓘ entry of residents ⓘ entry of workers ⓘ
startTime	2011 ⓘ
subjectTo	gradual lifting of evacuation orders in some areas ⓘ periodic re-evaluation of radiation levels ⓘ
surrounds	Fukushima Daiichi Nuclear Power Plant ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ōkuma, Fukushima Prefecture → partOf → Fukushima exclusion zone ⓘ

Kawauchi, Fukushima Prefecture → partOf → Fukushima Daiichi nuclear disaster evacuation zone (historically) ⓘ

linked to: Fukushima exclusion zone

Minamisōma → partlyWithin → Fukushima nuclear evacuation zone ⓘ