M 7.3 in Japan from 21 Nov 2016 20:59 UTC to 20:59

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: 7.3M
Depth: 10 Km
Lat/Lon: 37.272 , 141.644
Event Date: 21 Nov 2016 20:59 UTC
22 Nov 2016 05:59 Local
Exposed Population: 390000 people within 100km
Source: NTWC     at00oh0fnm
Inserted at: 21 Nov 2016 21:12 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NTWC     1 1 1
at00oh0fnm Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0.63m  
  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, Tomioka, Ide, Shimo-Kitabo, Kami-Shigeoka, Kami-Asamigawa, Bogoya, Naraha, Yotsukura, Futaba, and Ena.

Radius Population
100 km 580000 people
75 km 270000 people
50 km no 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 - 55 km
Tomioka Fukushima Japan Village - 57 km
Ide Fukushima Japan Village - 57 km
Shimo-Kitabo Fukushima Japan Village - 57 km
Kami-Shigeoka Fukushima Japan Village - 57 km
Kami-Asamigawa Fukushima Japan Village - 58 km
Bogoya Fukushima Japan Village - 58 km
Naraha Fukushima Japan Village - 58 km
Yotsukura Fukushima Japan Village - 60 km
Futaba Fukushima Japan Village - 60 km
Takatsudo Fukushima Japan Village - 60 km
Kiyohashi Fukushima Japan Village - 61 km
Arayashik Fukushima Japan Village - 61 km
Ogawara Fukushima Japan Village - 62 km
Okuma Fukushima Japan Village - 62 km
Namie Fukushima Japan Village 22000 people 62 km
Onaba Fukushima Japan Village - 63 km
Onoda Fukushima Japan Village - 63 km
Omori Fukushima Japan Village - 64 km
Hokidaira Fukushima Japan Village - 65 km
Aratame Fukushima Japan Village - 66 km
Kariyado Fukushima Japan Village - 66 km
Dozan Fukushima Japan Village - 66 km
Otojiro Fukushima Japan Village - 66 km
Odaka Fukushima Japan Village - 66 km
Shimo-Takaku Fukushima Japan Village - 67 km
Gomaisawa Fukushima Japan Village - 67 km
Toyoma Fukushima Japan Village - 67 km
Nakayama Fukushima Japan Village - 68 km
Kayahama Fukushima Japan Village - 68 km
Nakanouchi Fukushima Japan Village - 69 km
Taira Fukushima Japan City - 69 km
Ena Fukushima Japan Village - 70 km

see full list

Critical infrastructure

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

Ports

Name LOCODE Country Distance
Onahama JPONA Japan 75 km
Soma JPSMA Japan 87 km

Dams

Reservoir Dam Name River Year Distance
Sakashita Sakashita Okawaragawa 1973 63 km
Ogaki Ogaki Ukedogawa 1985 73 km
Yokokawa Yokokawa Otagawa 1983 75 km
Takanokura Takanokura Mizunashigawa 1975 78 km
Takashibako Takashiba Samekawa 1961 88 km
Shitokiko Shitoki Shitokigawa 1983 92 km
Tamanotameike Tamano Udagawa 1945 97 km
Mizunuma Mizunuma Hanazonokawa 1966 98 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAINI JAPAN 4 54 km
FUKUSHIMA-DAIICHI JAPAN 6 56 km

More information

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