List of Radiation Radioactive Nuclear Fallout Monitoring Websites

Want to get your own data about radiation (nuclear fallout). There are several official and independent monitoring sites.

This blog post will be continually updated. 41th update: September 12th 2011. Please help to identify new radiation monitoring sites. Thank you.

Simple Radiation Dose Calculator: allows to estimate exposer to radiation, a more detailed one can be found at EPA (USA)

Radiation Network, USA: independent, monitors currently 14 locations in the USA – three around Seattle, one in California, update every minute
USA, EPA, official monitoring sites: Now with a new interactive site to view the collected data: You can also create an user account to view data from all their 100 air radiation monitoring stations across the US. Now also with a customer satisfaction survey! 
USA, Santa Monica, West LA: indpendent source, realtime, live stream video of geiger counter via ustream
Hawaii, USA: EPA monitoring data, realtime updated with approximate 1 hour delay
Seattle, Richland,Spokane,Tumwater, USA: updated daily

Switzerland Bundesamt für Bevölkerungsschutz: Monitors Switzerland with 63 locations across at different hightes, updated daily.

Germany Bundesamtes für Strahlenschutz : 1800 monitoring stations across Germany, updated every 24 hrs (Link submitted by:
Garching, Munich, Germany: indpendent source, realtime

Japan: Largest community of independant monitoring sites with over 500 000 radiation data points across Japan.

Japan: Impressive number of monitoring stations visualized by Japanese Institute for Information Design. Also available as a list and in google earth. Updated regularly.

Japan: official prefectures monitoring sites, update several times per day, multi language support, graphical historical representation

Tokyo, Japan : independent sources, realtime and Mirror Site

Chiba, NE Tokyo, Japan: (currently offline)  indpendent source, realtime, live stream video of geiger counter via ustream

Japan: independent sources, regular update, graphical representation over time

Tokyo and Japan: 22 indpendent sources, shared via twitter, link to the data tables, updates at different intervals dependent on source (varies between minutes and hours) 

Further Sources, Japan plus 1 in Philippines: indpendent sources across Japan are continously coming now online. More and more crowd sourced readings available.  Additional sources  provided by Ryan and Susan in the Comment Section of this post. Thank you. Other independent source: Follow on Twitter;

Japan: in Japanese, over 50 data points, can someone give more detail on update frequency and origion of data ?

Japan Map: Showing radiation levels across region and where the data is originated . Article at Science Insider.

Indpendent Sources, Japan: Hokkaido, Fukushima, Kyoto, Tokyo, Osaka

Japan, Nuclear Safety Division Ministry of Education Cluture Sports Science and Technology
Disaster Prevention Network for Nuclear Environment
: realtime monitoring, or see google interactive map (The Wall Street Journal)

Kita-ku, Tokyo, Japan: Facebook Page, independent source, updated at different intervals

Tokyo Radioactive NOW (東京の放射線測定) on Facebook

Ibaraki, Japan: independent source, 72 km south of Fukushima Nuclear Plant  , updated daily

Onagawa, Nuclear Power Plant, Japan: no guidance on update frequency, please advise

Fukushima and other Towns in Japan: Tweets on radiation level several times per hour for Aizu-wakamatsu, Minami-Aizu-cho, Minami-soma, Fukushima, Shirakawa, Koriyama, Iwaki 

Kashiwazaki Kariwa Power Plant, Japan: seven monitoring stations, if you click on the monitoring data over the last five days is shown in diagram, updates every 30 minutes ? (Link submitted by Reinhard – see blog post comment section)

Tepco Radiation data Fukushima Nuclear Power Plant : Owner of the Nuclear Power Plant, updated several times per day

Gesellschaft für Anlagen u. Reaktorsicherheit (GRS) on radiation emissions from Nuclear Plants in Japan (Fukushima, Onagawa and Tokai): official site, updated at different intervals

Tokyo, Japan: independent source, update in average every 30 minutes  (Link submitted by Dominik Ratzinger,

Greenpeace, Japan: Past data measured by Greenpeace, no regular update

Currenlty offline: Tokyo, Japan: indpendent source, realtime, live stream video of geiger counter via ustream

Map of monitoring stations, Japan: 47 official monitoring sites across Japan. Daily upated on situation at

Radiation Visualisation, Japan: used data from existing official monitoring sites in Japan to visualize the amount of emitted radiation.

Hong Kong, China, Hong Kong Observatory: Official monitoring site, hourly update of the radiation data of the 10 official radiation monitoring sites in Hong.

Hong Kong, China: Official monitoring site with 10 radiation monitoring stations across the territory of Hong Kong (incl. Islands), updated daily

Russia Offical monitoring sites: needs latest flash player to view (Link submitted by: http)://

Austria Strahlenfrühwarnsystem Österreich: Official monitoring sites with 100 locations across Austria

Serbia Official Monitoring Sites: 15 sites, update every 30 minutes (Link submitted by Siobhán

Slovenia, Official Monitoring Sites: Over 70 sites, updated regualar, measurement in Nanosievert

EURDEP (European Radiological Data Exchange Platform): Official Monitoring Stations (several hundred) showing radiactivity levels (map) across Europe. (Link submitted by Fred: more details on this exchange platform see comment from Fred in comment section of this post)

World Radiation Monitoring Center (WRMC) : retrieval via ftp, no information on update frequency

Radiation Nuclear Fallout Volunteer Support Online Network: Connecting people globally who want to support or are supporting during this crisis, such as sharing radiation data or what to do when nuclear fallout comes to their community or help inform people who have no access to internet and to radiation data, etc…. Submitted by Network

General Overview of Effects of radiation contamination:
Comprehensive Test Ban Treaty Organization

Advise during nuclear fallout  in English and Japanese: no official document, can someone with expert knowledge confirm advise given.
Information was compiled from the following books in German by a reader of this post: Thank you.
Strohm, H. (1986): Was Sie nach der Reaktorkatastrophe wissen müssen. Frankfurt: Zweitausendeins.
v.Lichtenfels, K.L. (2005): Lexikon des Überlebens. Handbuch für Krisenzeiten. Köln: Anaconda.

World Nuclear Organisaton Reactor Database: currently 443 nuclear power plant, 62 in construction, 158 in planning status.

If you know of other radiation or radioactive tracking or monitoring sites that publish daily or more frequently data on their internetsites please  leave a comment or send me an email at Thank you.

Further Reading:

The Fastest Ways To Learn Any New Language

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61 Responses to “List of Radiation Radioactive Nuclear Fallout Monitoring Websites”

  1. klaus Says:

    Messstationen Radioaktivität Deutschland

    Hintergründe, Links:

  2. Links zur Katastrophe in Japan : #AntiAtomPiraten Says:

    […] List of Radiation Radioactive Nuclear Fallout Monitoring Websites […]

  3. LIVE: Aktuelle Werte aus Japan: Geigerzähler misst Radioaktivität. | Blog für neuartige Kommunikation Says:

    […] Umweltamt / Datenerfassung (aktuell down) Japanische Aufzeichnungen Messwerte Onagawa Liste von Messstationen Teilen Kategorien: Allgemein Tags: aktuell – explosion – geiger counter – geigerzähler – japan – […]

  4. klaus Says:

    Russland, Messstationen

  5. Dominik Ratzinger Says:

    Hallo, hier nochmal ein Geigerzähler Liveticker mit Erläuterungen:

  6. ppalme Says:

    Is this other live geiger data from Japan / Tokyo shared via twitter ?
    It is in Japanese, could someone translate this ? Thank you.

    • Stefan Says:

      -Go to Google Translator
      – Select source and target language
      – Copy and paste text in the source text box
      – Enjoy the result
      Note: Translations are not perfect but ok to understand (mostly) the core of the original content

  7. wimblogger Says:

    Generic auto-translation, at least something for a start

  8. Reinhard Says:

    Von den Reaktoren Fukushima I, Messung in cpm, mit Langzeitdiagramm, wenn man ganz links auf die Reaktornummer klickt.

  9. ryan Says:

    Japan Disaster Prevention network (you already have) but would be better to link here instead (your link is the subset for Ibaraki prefecture), lists maximums by prefecture and allows you to drill down (except for the two most relevant prefectures, which are either still without power or conspicuously not reporting)

  10. Siobhán Says:

    Here’s a website with data from Serbia. It updates every 30 minutes.

  11. Fred Says:

    EURDEP (European Radiological Data Exchange Platform) at gathers radiological monitoring data from 4200 measuring stations of 33 European countries and shows them on an interactive map.

    Direct link for the map:

    Calling the link at the home page for this map will give additional popup informations, how the measuring values are collected.


  12. ryan Says:

    different map view of some of the same gov provided readings:

    (very decent view, with conversions from nGy/h to mSv/h/y displayed)

  13. ryan Says:

    clicking the “source” links on that page lead to a better map+table for individual prefectures… same data from Disaster Prevention Network, but presented much better (on the non-english visual pages)

    example: (ibaraki) –

  14. Susanne Says:
    Another overview of some people measuring radioactivity in Japan, results shown on a map

  15. Susanne Says:

    I finally found a pdf of the Japanese Government with advise on what to do when there is FALLOUT:

  16. Susanne Says:

    And a map with the actual WIND situation in japan:

  17. ryan Says:

    another project to attempt to aggregate independent data, not displaying yet… just collecting sources at this time…

  18. ryan Says:

    this existing data feed service also launched a call for JP data from it’s userbase (existing participants included already in the previously commented RDTN project):

    • Susanne Says:
      This map visualises crowd-sourced geiger counter readings from across Japan. It has a link on the parachube community on its site and there s an explanation how to create such maps.

      The number of locations will fluctuate from time-to-time due to the validity of the data coming in (sometimes the feeds freeze or report inconsistent data). There are approximately 185 feeds from the official Japanese Government source: MEXT and 20 from other sources such as the Tokyo hackspace, concerned individuals, universities, local councils.

  19. Susanne Says:

    Commission de Recherche et d’Information Indépendantes sur la Radioactivité

    Click on “Accidents nucléaires au Japon: dossier spécial” to see measurements of food such as spinach (épinard)

    Information is in French only

  20. Michael Van Broekhoven Says:

    Hi! Great list!

    I put a website together to easily access
    >>> Current Radiation Levels <<<
    all over more the world easily accessible, check it out:
    The shortlink is:

    I'm not much of a social media guy, so any help getting that link out is appreciated.

    Looks like I got what you got (except for Ireland, perhaps?), anyhow, as far as Europe goes, it's all covered under EURDEP anyhow. Great list!

    Wish we will find monitors online in the Middle East, Africa and South America too.


    Michaël V.B.

  21. Michael Van Broekhoven Says:

    (same comment post, typo removed):

    Hi! Great list!

    I put a website together to easily access
    >>> Current Radiation Levels <<<
    all over more the world, check it out:
    The shortlink is:

    I'm not much of a social media guy, so any help getting that link out is appreciated.

    Looks like I got what you got (except for Ireland, perhaps?), anyhow, as far as Europe goes, it's all covered under EURDEP anyhow. Great list!

    Wish we will find monitors online in the Middle East, Africa and South America too.


    Michaël V.B.

  22. Susanne Says:

    Data on contamination of tap water in Japan, provided by MEXT, Ministery od Education, Culture, Sports, Science and Technology. You can click on the prefecture and see the graphs

  23. sg Says:

    June 29th 2011


    does the EURDEP map still work?

    feedback appreciated, thanks again.


  24. Susanne Says:

    Realtime monitoring from the US:

  25. Rajesh Says:

    oh relay thanks for your post

  26. Susanne Says:

    Realtime monitoring, US:

  27. Libbe Says:

    Check also with They have been distributing radiation monitors in Japan that they’ve been manufacturing themselves (only way to guarantee high quality testing) and compiling the data. Interview with Sean Bonner of Safecast on Nuclear Hotseat Podcast of August 30, 2011. Weekly podcast with nuclear news, interviews, holistic healing tips and activist opportunities available on iTunes, at, or on the Facebook Nuclear Hotseat group page. The interview covers the history of the group and his recent trip to Japan, where he distributed meters while taking readings in the north.

  28. best news Says:

    best news…

    […]List of Radiation Radioactive Nuclear Fallout Monitoring Websites « Continuous Learning & Development[…]…

  29. Mats Bladh Says:

    Why is the european site down those days when there are a little alert of raised levels of iodine 131 ??

  30. saiinfo Says:

    I read your blog , i like it so much ……..

    Yellow Pages Online India

  31. LIVE: Aktuelle Werte aus Japan: Geigerzähler misst Radioaktivität. | Agentur für neuartige Kommunikation Says:

    […] Weitere wichtige Links: CPM-Bedeutung (englisch) How to read a Geiger Counter Deutsche Aufzeichnung (Bundesamt für Strahlenschutz) Baden-Württembergisches Umweltamt / Datenerfassung (wieder online) Japanische Aufzeichnungen Messwerte Onagawa Liste von Messstationen […]

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