M 6.9 in Japan on 21 Nov 2016 20:59 UTC

Event summary

This earthquake is expected to have a medium humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 6.9M
Depth: 11.35 Km
Lat/Lon: 37.3917 , 141.4025
Event Date: 21 Nov 2016 20:59 UTC
22 Nov 2016 05:59 Local
Exposed Population: 700000 people within 100km
Source: NEIC us10007b88
Inserted at: 21 Nov 2016 21:24 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 1 0.2 1
us10007b88 Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0.23m  
  C2 earthquake n.a      
  Country Vulnerability n.a      
  INFORM_normalised n.a      
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1147717 0.5 21 Nov 2016 20:59 6.8M, 10km N/A 520 thousand (in 100km) 0.3m (at 02:07) 00:09 GEOFON
1147721 1 21 Nov 2016 20:59 7.3M, 10km N/A 390 thousand (in 100km) 0.6m (at 00:26) 00:12 NTWC    
1147730 1 21 Nov 2016 20:59 6.9M, 11.35km N/A 700 thousand (in 100km) 0.2m (at 01:55) 00:24 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in Japan , Region of Tohoku (population 9,984,608) . The nearest places are Oragahama, Futaba, Tomioka, Kiyohashi, Bogoya, Kami-Shigeoka, Ide, Namie, Takatsudo, Onaba, and Kami-Kamato.

Radius Population
100 km 1.9 million people
75 km 480000 people
50 km 69000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Tohoku Japan 10 million people
Kanto Japan 38.5 million people
Chubu Japan 5.2 million people
Hokkaido Japan 5.8 million people
Kinki Japan 22.2 million people

Affected populated places

Name Region Province Country City class Population Distance
Oragahama Fukushima Japan Village - 33 km
Futaba Fukushima Japan Village - 35 km
Tomioka Fukushima Japan Village - 35 km
Kiyohashi Fukushima Japan Village - 36 km
Bogoya Fukushima Japan Village - 36 km
Kami-Shigeoka Fukushima Japan Village - 37 km
Ide Fukushima Japan Village - 37 km
Namie Fukushima Japan Village 22000 people 38 km
Takatsudo Fukushima Japan Village - 38 km
Onaba Fukushima Japan Village - 38 km
Naraha Fukushima Japan Village - 39 km
Onoda Fukushima Japan Village - 39 km
Okuma Fukushima Japan Village - 39 km
Ogawara Fukushima Japan Village - 39 km
Shimo-Kitabo Fukushima Japan Village - 40 km
Kariyado Fukushima Japan Village - 41 km
Odaka Fukushima Japan Village - 41 km
Kami-Asamigawa Fukushima Japan Village - 41 km
Kayahama Fukushima Japan Village - 43 km
Nakanouchi Fukushima Japan Village - 44 km
Gomaisawa Fukushima Japan Village - 45 km
Yotsukura Fukushima Japan Village - 45 km
Arayashik Fukushima Japan Village - 46 km
Otojiro Fukushima Japan Village - 46 km
Takahira Fukushima Japan Village - 46 km
Hokidaira Fukushima Japan Village - 46 km
Sekimori Fukushima Japan Village - 47 km
Haramachi Fukushima Japan Village 47000 people 48 km
Minami-Ibi Fukushima Japan Village - 49 km
Dozan Fukushima Japan Village - 50 km
Odashiro Fukushima Japan Village - 50 km
Tetsuzan Fukushima Japan Village - 50 km
Hirusone Fukushima Japan Village - 50 km
Shimo-Kawauchi Fukushima Japan Village - 50 km
Kodeya Fukushima Japan Village - 51 km
Jikenjo Fukushima Japan Village - 51 km
Kita-Nagano Fukushima Japan Village - 51 km
Uzugawa Fukushima Japan Village - 51 km
Kashima Fukushima Japan Village - 51 km
Omori Fukushima Japan Village - 52 km
Ohana Fukushima Japan Village - 52 km
Kami-Kawauchi Fukushima Japan Village - 53 km
Okubo Fukushima Japan Village - 53 km
Sakashiuchi Fukushima Japan Village - 53 km
Kashiwabara Fukushima Japan Village - 54 km
Nakayama Fukushima Japan Village - 54 km
Furumichi Fukushima Japan Village - 54 km
Koyamada Fukushima Japan Village - 54 km
Aratame Fukushima Japan Village - 54 km
Kunugidaira Fukushima Japan Village - 55 km
Isobe Fukushima Japan Village - 55 km
Suketsune Fukushima Japan Village - 55 km
Eda Fukushima Japan Village - 56 km
Shajigami Fukushima Japan Village - 56 km
Tsunagi Fukushima Japan Village - 56 km
Mishima Fukushima Japan Village - 56 km
Shimo-Takaku Fukushima Japan Village - 57 km
Takahagi Fukushima Japan Village - 57 km
Takadaiima Fukushima Japan Village - 57 km
Taira Fukushima Japan City - 57 km
Oyama Fukushima Japan Village - 57 km
Ochiai Fukushima Japan Village - 58 km
Tachiya Fukushima Japan Village - 58 km
Shidamyo Fukushima Japan Village - 58 km
Umekawa Fukushima Japan Village - 58 km
Toyoma Fukushima Japan Village - 58 km
Yoshima Fukushima Japan Village - 58 km
Hiso Fukushima Japan Village - 59 km
Iwaisawa Fukushima Japan Village - 59 km
Doyaba Fukushima Japan Village - 60 km
Shimo-Tsushima Fukushima Japan Village - 60 km
Shimo-Yata Fukushima Japan Village - 61 km
Ena Fukushima Japan Village - 61 km
Nakumura Fukushima Japan Village - 62 km
Kawamae Fukushima Japan Village - 62 km
Ojiro Fukushima Japan Village - 62 km
Tsuzura Fukushima Japan Village - 62 km
Unejiri Fukushima Japan Village - 62 km
Haragama Fukushima Japan Village - 62 km
Ohahama Fukushima Japan Village - 62 km
Yanagiwatado Fukushima Japan Village - 62 km
Nagadoro Fukushima Japan Village - 63 km
Kami-Nagai Fukushima Japan Village - 63 km
Komiya Fukushima Japan Village - 63 km
Kami-Okeuri Fukushima Japan Village - 63 km
Yokomichi Fukushima Japan Village - 63 km
Ashimata Fukushima Japan Village - 63 km
Goto Fukushima Japan Village - 64 km
Kuroki Fukushima Japan Village - 64 km
Sumiyoshi Fukushima Japan Village - 65 km
Gomizawa Fukushima Japan Village - 65 km
Shimo-Misaka Fukushima Japan Village - 66 km
Sekifune Fukushima Japan Village - 66 km
Otsubo Fukushima Japan Village - 66 km
Komagamine Fukushima Japan Village - 66 km
Kusano Fukushima Japan Village - 66 km
Mabarado Fukushima Japan Village - 66 km
Kammata Fukushima Japan Village - 66 km
Tokiwa Fukushima Japan Village - 67 km
Nakadera Fukushima Japan Village - 67 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Fukushima FKS 372 Civ. Paved Yes 8200 88 km
Sendai SDJ 5 Civ. Paved Yes 9800 93 km

Ports

Name LOCODE Country Distance
Soma JPSMA Japan 62 km
Onahama JPONA Japan 67 km

Dams

Reservoir Dam Name River Year Distance
Sakashita Sakashita Okawaragawa 1973 41 km
Ogaki Ogaki Ukedogawa 1985 48 km
Yokokawa Yokokawa Otagawa 1983 50 km
Takanokura Takanokura Mizunashigawa 1975 53 km
Tamanotameike Tamano Udagawa 1945 72 km
Takashibako Takashiba Samekawa 1961 76 km
Shitokiko Shitoki Shitokigawa 1983 81 km
Bobatako Sengozawa Kitasugawa 1974 84 km
Mizunuma Mizunuma Hanazonokawa 1966 88 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAIICHI JAPAN 6 33 km
FUKUSHIMA-DAINI JAPAN 4 34 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.