Live Streaming Radiation Meters

If this page consumes too many resources on your computer or mobile device, the light version which breaks apart Geiger counters by region is available at  Or, meters may be viewed individually from location links in the Live Ustream Radiation Detectors Google map.

Radiation Comparison Scale to Fukushima Daichi Nuclear Disaster
Note: Multiply mSv/hr (milli-Sieverts/hour) by 1000 to get μSv/h

Radiation Dosage Charts SciAm

News Hint: RadiationNews™ Google gadget can be added to iGoogle or embedded in your own website.

Or click here to launch IRC chat in separate tab. Clicking #radiation or ##fukushima next to Status switches channels when the chat is active. Associated FaceBook group: Glowing Conversations.

Hint: Click lower left corner play button on all streams to get simultaneous live streams all on this page. Clicking image redirects you to UStream. Clicking underlined title opens a map of radiation counter location. It might be a good idea to close and relaunch the page occasionally since memory is slowly eaten up over time by UStream (bug?).

Santa Monica (West LA), California

EnviroReport Ustream channel
Inspector CPM (Counts per minute)
Multiply CPM by .0025 to get μSv/h. Per site owner, 40-46 CPM is normal. Twice this is of concern.
San Francisco, CA (Bay Area) botsmaker Ustream channel Click here owner's site. Divide right hand axis by 100 to get the μSv/h. This is based on 1 Sv = 100 rem and 1 Roentgen (owner's scale) = 1 Rad = 1 rem. Redlands, California

geigercounter Ustream channel
CD V-700 in CPM (counts per minute) and mR/hr (milli-Rads per hour)
Multiply mR/hr by 10 to get μSv/h (micro-Sieverts per hour)
Las Vegas, NV

Pilgrim4life Ustream channel
Multiple owner scale mR/h (milli-Rads/hour) by 10 to get μSv/h
This is based on 1 Sv = 100 rem and 1 Roentgen (owner's scale) = 1 Rad = 1 rem.
Driggs, Idaho

CerebralProgrammer Ustream channel
Ludlum Model 177 ratemeter with a victoreen 490-31 detector scale CPM
Please leave comment if you know how to convert this CPM to μSv/h.
Gothenburg, Sweden

Lejontass Ustream channel
RADEX RD1503 μSv / h
Per owner 0.1 to 0.3 μSv / h is normal level.

Rome, Italy

lollos71 Ustream channel
Nuova Elettronica LX.1407 mR/h
Multiply by 10 to get μSv/h
.001 mR/h-.030 mR/h is normal
Bologna, Italy

*** ***: Global map with collection of independent as well as government site data from around the world. is featured in CNET.

Japan normal levels and official government data by prefecture: List of nationwide activity concentration

Fukaya, Saitama Prefecture, Japan

s_eigo Ustream channel
BESEN BS2010 μSv/h
Kuki, Saitama Prefecture, Japan

asaoka55 Ustream channel
DP802i μSv/h

Saitama (Iwatsuki-ku), Saitama Prefecture, Japan

komipati Ustream channel
DP802i μSv/h

Sakura Ward of Saitama City, Saitama Prefecture, Japan Masahiko_Osada Ustream channel ALOKA MODEL TCS-171 μSv/h

Asaka City, Saitama Prefecture, Japan

tucano1200 Ustream channel
Read scale: μSv/h
Normal: 0.03 ~ 0.06 μSv/h
Kawagoe, Saitama Prefecture, Japan

dokizono Ustream channel
JB4020 μSv/h

Kawaguchi, Saitama Prefecture, Japan

aoc123 Ustream channel
SW83A μSv/h

Hanno, Saitama Prefecture, Japan

CitizenofHanno Ustream channel
TEPPA ??? μSv/hr

Koshigaya Laketown,
Saitama Prefecture, Japan

GM-10 Near Laketown (10 min refresh)
Black Cat Systems GM-10
CPM (counts per minute)
Divide CPM by 120 to get μSv/h
Matsudo, Chiba Prefecture, Japan

utuno_jcp Ustream channel
DP802i μSv/h
Twitter: @utuno_jcp
Narita, Chiba Prefecture, Japan

BlueSkyChiba Ustream channel
RADEX μSv/hr
Location: Second floor porch

Chiba (Chuo-ku), Chiba Prefecture, Japan

execute05726 Ustream channel
Left: DoseRAE 2 μSv/h
Right: SW83A μSv/h
Pacement: North-facing glass windows of the room, 3rd floor apartment in a reinforced room
NW Chiba Prefecture, 2F (200km S of Fukushima Nuclear Plant, 10 km NE of Tokyo) houtentg Ustream channel RADEX RD1503 μSv/h
Per owner .16 μSv/h is normal background radiation.

Kashiwa, Chiba Prefecture, Japan

Syun_Kashiwa Ustream channel
Roof placement: Photo
Twitter: @Syun_Kashiwa

Urayasu, Chiba Prefecture, Japan Ustream channel takenoma
Digilart100 μSv/hr
Click here for Google Maps link to owner location.
Chiba (Inage-ku), Chiba Prefecture, Japan

asosatoshi Ustream channel
RADEX RD1503 μSv/h

NE Tokyo Bay, Chiba City, Chiba Prefecture, Japan

Nirois Ustream channel
BESEN BS2010 μSv/h
Twitter: @netwatchable
Ichinomiya (Kujyukuri-Hama), Chiba Prefecture, Japan

radioleaks-one Ustream channel
Radex 1706 μSv/h

Osaka (Hirano Ward), Japan

chuoh-ku_osaka Ustream channel
Osaka (Kita Ward), Japan

hippopodaio Ustream channel
JB4020 μSv/hr
Osaka (Kita-ku), Japan

Market77 Ustream channel
RADEX μSv/hr
Iitate Village, Fukushima Prefecture, Japan

GM-fukushima Ustream
JB4020 μSv/hr
Fukushima, Fukushima Prefecture, Japan

radiation_poisoning Ustream channel
Left: BS2010 μSv/h
Right: DP802i μSv/h
Twitter: @radiation_pois
Fukushima City, Fukushima Prefecture, Japan

masked_henkuma Ustream channel
Twitter: @masked_henkuma
Website: Dose Charts
Koriyama, Fukushima Prefecture, Japan

Marufuku-Koriyama Ustream channel

Indoors measurement by window in south room.  Outdoor measures .46 μSv/h typically.
Sendai, Miyagi Prefecture, Japan

com4jai Ustream channel
FJ3200 μSv/h
Twitter: @com4jai
Hagino Co., Sendai (Miyagino Ward), Miyagi Prefecture, Japan

hagino_co_jp Ustream channel
RADEX RD1503 μSv/h
Twitter: @h_hagino

Sendai (Wakabayashi Ward), Miyagi Prefecture

bb119 Ustream channel
Website: http://BB工事.com/

Ueda City, Nagano Prefecture, Japan Ueda_Nagano Ustream channel Left: Inspector CPM
Right: RADEX RD1706 μSv/h
Yokohama Port, Kanagawa Prefecture, Japan

DoubleOC Ustream channel
JB4020 μSv/hr

Kyoto (Shijo and Karasuma street), Japan

rakunatural Ustream channel
Inspector+ μSv/hr

Kurihara Photo Studio, Mito, Ibaraki Prefecture, Japan

hyakuy Ustream channel
Aloka ??? CPM
Top meter in μSv/h seems often inaccurate (knowing this area is closer to Fukushima). Perhaps multiply the CPM by .003 to get μSv/h? If you know for sure post a comment please I do not have specs/model.
Sapporo, Hokkaido Prefecture, Japan

alexysjp Ustream channel
RADEX RD1503+ μSV/h
Placement office of Northern Star Inc.

Moriya City, Ibaraki Prefecture, Japan kp61 Ustream channel
RADEX RD1503 μSv/h
Photo: RD1503 + iPhone3G
Twitter: @kp61dx

Hachinohe, Aomori Prefecture, Japan

msa-U00 Ustream channel

Toyama, Japan

yaharu2010 Ustream channel
RADEX ??? μSv/h
Kobe, Hyogo Prefecture, Japan

injapan-kobe Ustream channel
InJapan Corp. warehouse
Ebina, Kanagawa Prefecture, Japan

wonder_tsak2 Ustream channel
YRX0806 μSv/hr

Radiation Levels in Tokyo, Japan:*** Are They Safe? ***

Tokyo (Komae), Japan Tokyo-Komae Ustream channel
RADEX RD1503 μSv/h
Placement is in wooden houses.

Tokyo (Setagaya), Japan hirokimori23 Ustream channel
RADEX RD1706 μSv/h
Normal:  0.02 ~ 0.08 μSv/h
Click here for owner @soundchamp23 radiation statistics.
Tokyo (Asakusa), Japan

Digalert 100 μSV/h
.05 μSV/h normal per owner @aoKaeru
Tokyo (Meguro) Japan

J-AC Ustream channel
Inspector+ μSv / hr

Tokyo (Minamiaoyama Minato), Japan

creature_kuriyama Ustream channel
Per owner 100 CPM = 0.93μSv/hr
Normal: 10-20 CPM
Click here for owner street view

Tokyo (Akiruno), Japan

co252525 Ustream Channel
Strawberry Linux USB Geiger Counter Kit CPM
Divide CPM by 120 to get μSv/hr
Per owner @Para_kun normal background radiation is 20 CPM
Tokyo (Roppongi, Minato), Japan

satoshiTAKA Ustream channel
DP802i μSv / hr
Right top → Local time
Right bottom → Accumulated radiation

Tokyo (Ota-ku), Japan

hiroshi_shinji Ustream channel
Strawberry Linux USB Geiger Counter (kit) in CPM (counts per minute). Divide CPM by 120 to get μSv/h. Owner belongs to the GEIGERMAP independent monitoring network. Here is the owner's 24 hour chart.
Asakusabashi, Tokyo (Taito-ku), Japan

yoshinarisan Ustream channel
Inspector Exp μSv/h
Per owner 334 CPM = 1μSv/h

Tokyo (Adachi Ward), Japan

masa_v5 Ustream channel
Twitter: @masa_v5
Tokyo (Shinjuku Ward), Japan

GMshinjuku Ustream channel
JB4020 μSv/h
Twitter: @GMShinjuku
Tama Area, Tokyo (Fuchu), Japan

geigerjp Ustream channel
Takasago Tokyo (Katsushika), Japan

sean893 Ustream channel
Left: FJ2000 (discontinued) +/- 20% err μSv / h
Right: BS2010 +/- 30% err μSv / h
Twitter: @sean893
Tokyo (Gotanda), Japan

nnwk Ustream channel
6025 Personal Dosimeter μSv/h

Cerulean Tower, Tokyo (Shibuya Ward), Japan

benrishi00 Ustream channel

Tokyo Port, Tokyo, Japan

DoubleOC Ustream channel
JB4020 μSv/h
Tokyo (Arakawa), Japan

Niny28 Ustream channel
DP802i μSv/h
Akihabara, Tokyo (Chiyoda Ward), Japan

isbsd Ustream channelDoseRAE 2 μSv/h
Tokyo (Nerima-ku), Japan

yuzunohu Ustream channel
SOEKS ??? μSv/h

*** ***: Excellent map of 300+ volunteer sites whose data with the ability to drill down. Readings are in μSv/h.

Great translation plugin for FireFox: Google Dictionary and Translate. From Tools|Translate entire web pages can be translated, or certain text blocks by holding down ctrl key after having highlighted the text.