Tokaimura nuclear accident

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Tokaimura nuclear accident

Quality:

Tōkaimura criticality accident - nuclear accident. Article “Tokaimura nuclear accident” in Simple English Wikipedia has 22.6 points for quality (as of July 1, 2025). The article contains 5 references and 2 sections.

This article has the best quality in English Wikipedia. However, the most popular language version of this article is Japanese.

Achievements in all the time:
Simple English Wikipedia:
The 2546th most popular in Simple English Wikipedia.
Achievements in the last month:
Simple English Wikipedia:
The 750th most popular in Simple English Wikipedia in the last month.

Since the creation of article “Tokaimura nuclear accident”, its content was written by 18 registered users of Simple English Wikipedia and edited by 682 registered Wikipedia users in all languages.

The article is cited 34 times in Simple English Wikipedia and cited 869 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #372 in October 2017
  • Global: #8545 in March 2011

The highest popularity rank from 2008:

  • Local (Simple English): #168 in December 2024
  • Global: #191 in March 2011

There are 16 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Tokaimura nuclear accidents
73.6919
2Portuguese (pt)
Acidentes nucleares de Tokaimura
63.7986
3German (de)
Nuklearunfall von Tōkaimura 1999
45.023
4Ukrainian (uk)
Аварія на ядерному об'єкті Токаймура
38.2063
5Russian (ru)
Авария на ядерном объекте Токаймура
35.6041
6Japanese (ja)
東海村JCO臨界事故
32.1884
7French (fr)
Accident nucléaire de Tokaimura
31.165
8Turkish (tr)
Tokaimura nükleer kazaları
28.677
9Korean (ko)
도카이촌 JCO 임계사고
27.132
10Italian (it)
Incidenti di Tokaimura
25.5791
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Tokaimura nuclear accident" in all the time
#LanguagePopularity awardRelative popularity
1Japanese (ja)
東海村JCO臨界事故
8 127 916
2English (en)
Tokaimura nuclear accidents
4 358 957
3Chinese (zh)
東海村JCO臨界事故
704 266
4Russian (ru)
Авария на ядерном объекте Токаймура
396 381
5German (de)
Nuklearunfall von Tōkaimura 1999
251 042
6Spanish (es)
Accidentes de Tokaimura
246 136
7Italian (it)
Incidenti di Tokaimura
230 881
8French (fr)
Accident nucléaire de Tokaimura
185 073
9Simple English (simple)
Tokaimura nuclear accident
148 396
10Korean (ko)
도카이촌 JCO 임계사고
83 447
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Tokaimura nuclear accident" in June 2025
#LanguagePopularity awardRelative popularity
1Japanese (ja)
東海村JCO臨界事故
35 557
2English (en)
Tokaimura nuclear accidents
32 623
3Spanish (es)
Accidentes de Tokaimura
7 760
4Italian (it)
Incidenti di Tokaimura
6 726
5Chinese (zh)
東海村JCO臨界事故
5 072
6Simple English (simple)
Tokaimura nuclear accident
3 506
7German (de)
Nuklearunfall von Tōkaimura 1999
2 348
8Russian (ru)
Авария на ядерном объекте Токаймура
1 988
9French (fr)
Accident nucléaire de Tokaimura
1 568
10Portuguese (pt)
Acidentes nucleares de Tokaimura
1 257
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Tokaimura nuclear accident" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Tokaimura nuclear accidents
218
2Japanese (ja)
東海村JCO臨界事故
161
3Italian (it)
Incidenti di Tokaimura
52
4French (fr)
Accident nucléaire de Tokaimura
38
5Chinese (zh)
東海村JCO臨界事故
38
6German (de)
Nuklearunfall von Tōkaimura 1999
35
7Russian (ru)
Авария на ядерном объекте Токаймура
33
8Korean (ko)
도카이촌 JCO 임계사고
29
9Spanish (es)
Accidentes de Tokaimura
18
10Simple English (simple)
Tokaimura nuclear accident
18
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Tokaimura nuclear accident" with the highest AI in June 2025
#LanguageAI awardRelative AI
1English (en)
Tokaimura nuclear accidents
5
2Arabic (ar)
حادثة توكايمورا النووية
1
3Italian (it)
Incidenti di Tokaimura
1
4Japanese (ja)
東海村JCO臨界事故
1
5Russian (ru)
Авария на ядерном объекте Токаймура
1
6German (de)
Nuklearunfall von Tōkaimura 1999
0
7Spanish (es)
Accidentes de Tokaimura
0
8French (fr)
Accident nucléaire de Tokaimura
0
9Indonesian (id)
Insiden nuklir Tokaimura
0
10Korean (ko)
도카이촌 JCO 임계사고
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Tokaimura nuclear accident" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Japanese (ja)
東海村JCO臨界事故
464
2English (en)
Tokaimura nuclear accidents
113
3French (fr)
Accident nucléaire de Tokaimura
66
4Ukrainian (uk)
Аварія на ядерному об'єкті Токаймура
36
5Simple English (simple)
Tokaimura nuclear accident
34
6Russian (ru)
Авария на ядерном объекте Токаймура
30
7Korean (ko)
도카이촌 JCO 임계사고
28
8Italian (it)
Incidenti di Tokaimura
26
9Chinese (zh)
東海村JCO臨界事故
23
10German (de)
Nuklearunfall von Tōkaimura 1999
11
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in June 2025:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in June 2025:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
حادثة توكايمورا النووية
deGerman
Nuklearunfall von Tōkaimura 1999
enEnglish
Tokaimura nuclear accidents
esSpanish
Accidentes de Tokaimura
frFrench
Accident nucléaire de Tokaimura
idIndonesian
Insiden nuklir Tokaimura
itItalian
Incidenti di Tokaimura
jaJapanese
東海村JCO臨界事故
koKorean
도카이촌 JCO 임계사고
ptPortuguese
Acidentes nucleares de Tokaimura
roRomanian
Accidentul nuclear de la Tokaimura
ruRussian
Авария на ядерном объекте Токаймура
simpleSimple English
Tokaimura nuclear accident
trTurkish
Tokaimura nükleer kazaları
ukUkrainian
Аварія на ядерному об'єкті Токаймура
zhChinese
東海村JCO臨界事故

Popularity rank trends

Best Rank Simple English:
#168
12.2024
Global:
#191
03.2011

AI rank trends

Best Rank Simple English:
#372
10.2017
Global:
#8545
03.2011

Local popularity rank history

Global popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Tōkaimura criticality accident from Wikipedia articles about Radiation syndrome, International Nuclear Event Scale, Criticality accident, Cecil Kelley criticality accident and Nuclear accident. Whereas reading the article about Tōkaimura criticality accident people most often go to Wikipedia articles on Criticality accident, JCO, Fukushima Daiichi nuclear disaster, International Nuclear Event Scale and Cherenkov radiation.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 10 February 2026

On 10 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Ghislaine Maxwell, Ilia Malinin, Bad Bunny, 2026 Winter Olympics, Epstein files, Jutta Leerdam, Jake Paul, Puerto Rico, Little Saint James.

In Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, Jeffrey Epstein, XXXTentacion, Megan Skiendiel, Jessica Alba, Golden Edge, Manon Bannerman, Ghislaine Maxwell, Blake Carrett.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information