M 4.9 in Japan on 07 Dec 2021 17:29 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

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

Earthquake Magnitude: 4.9M
Depth: 8.58 Km
Lat/Lon: 37.1807 , 141.2643
Event Date: 07 Dec 2021 17:29 UTC
08 Dec 2021 02:29 Local
Exposed Population:
2.1 million in 100km
Source: NEIC us6000ga4u
Inserted at: 08 Dec 2021 17:02 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us6000ga4u Scaled population (vector) 5.96  
  C1 earthquake 0.73  
  C2 earthquake -0.22  
  Country Vulnerability -0.71  
  INFORM_normalised 0.57  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1414296 0 07 Dec 2021 17:29 5.1M, 10.55km N/A 1.7 million (in 100km) 00:23 NEIC
1414311 0 07 Dec 2021 17:29 4.9M, 8.41km N/A 1.8 million (in 100km) 02:13 NEIC
1414559 0 07 Dec 2021 17:29 4.9M, 8.58km N/A 2.1 million (in 100km) 23:33 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 Shimo-Kitabo, Kami-Asamigawa, Yotsukura, Ide, Arayashik, Kami-Shigeoka, Naraha, Tomioka, Oragahama, Omori, and Tochimoto.

Radius Population
100 km 2.1 million people
75 km 630000 people
50 km 310000 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

Affected populated places

Name Region Province Country City class Population Distance
Shimo-Kitabo Fukushima Japan Village - 23 km
Kami-Asamigawa Fukushima Japan Village - 24 km
Yotsukura Fukushima Japan Village - 25 km
Ide Fukushima Japan Village - 26 km
Arayashik Fukushima Japan Village - 26 km
Kami-Shigeoka Fukushima Japan Village - 27 km
Naraha Fukushima Japan Village - 27 km
Tomioka Fukushima Japan Village - 29 km
Oragahama Fukushima Japan Village - 29 km
Omori Fukushima Japan Village - 29 km
Bogoya Fukushima Japan Village - 31 km
Aratame Fukushima Japan Village - 31 km
Dozan Fukushima Japan Village - 31 km
Hokidaira Fukushima Japan Village - 32 km
Shimo-Takaku Fukushima Japan Village - 32 km
Nakayama Fukushima Japan Village - 33 km
Takatsudo Fukushima Japan Village - 33 km
Toyoma Fukushima Japan Village - 33 km
Taira Fukushima Japan City - 34 km
Otojiro Fukushima Japan Village - 34 km
Ogawara Fukushima Japan Village - 35 km
Mishima Fukushima Japan Village - 36 km
Ena Fukushima Japan Village - 36 km
Takahagi Fukushima Japan Village - 36 km
Yoshima Fukushima Japan Village - 36 km
Ohahama Fukushima Japan Village - 37 km
Shimo-Yata Fukushima Japan Village - 37 km
Okuma Fukushima Japan Village - 37 km
Gomaisawa Fukushima Japan Village - 38 km
Futaba Fukushima Japan Village - 38 km
Eda Fukushima Japan Village - 38 km
Tsuzura Fukushima Japan Village - 39 km
Odashiro Fukushima Japan Village - 39 km
Uzugawa Fukushima Japan Village - 39 km
Sumiyoshi Fukushima Japan Village - 40 km
Doyaba Fukushima Japan Village - 41 km
Kiyohashi Fukushima Japan Village - 41 km
Shimo-Kawauchi Fukushima Japan Village - 41 km
Sekifune Fukushima Japan Village - 42 km
Namie Fukushima Japan Village 22000 people 42 km
Onoda Fukushima Japan Village - 42 km
Onahama Fukushima Japan City - 43 km
Mabarado Fukushima Japan Village - 43 km
Goto Fukushima Japan Village - 44 km
Kami-Kawauchi Fukushima Japan Village - 44 km
Kami-Nagai Fukushima Japan Village - 45 km
Sakashiuchi Fukushima Japan Village - 45 km
Shidamyo Fukushima Japan Village - 45 km
Kariyado Fukushima Japan Village - 45 km
Tanebe Fukushima Japan Village - 45 km
Obama Fukushima Japan Village - 46 km
Tsunagi Fukushima Japan Village - 46 km
Onaba Fukushima Japan Village - 46 km
Kawamae Fukushima Japan Village - 46 km
Kami-Kamato Fukushima Japan Village - 46 km
Jikenjo Fukushima Japan Village - 46 km
Unejiri Fukushima Japan Village - 47 km
Okubo Fukushima Japan Village - 47 km
Nakanouchi Fukushima Japan Village - 48 km
Nakadera Fukushima Japan Village - 48 km
Soeno Fukushima Japan Village - 48 km
Odaka Fukushima Japan Village - 49 km
Sekimori Fukushima Japan Village - 49 km
Kami-Okeuri Fukushima Japan Village - 50 km
Takadaiima Fukushima Japan Village - 50 km
Furumichi Fukushima Japan Village - 50 km
Ojiro Fukushima Japan Village - 51 km
Kami-Yamoda Fukushima Japan Village - 51 km
Shimo-Misaka Fukushima Japan Village - 51 km
Otsu Fukushima Japan Village - 51 km
Ohana Fukushima Japan Village - 51 km
Gomizawa Fukushima Japan Village - 51 km
Iritono Fukushima Japan Village - 51 km
Taki Fukushima Japan Village - 51 km
Kodeya Fukushima Japan Village - 52 km
Kami-Ichigaya Fukushima Japan Village - 53 km
Nagakubo Fukushima Japan Village - 53 km
Hirusone Fukushima Japan Village - 54 km
Terashita Fukushima Japan Village - 54 km
Hatta Fukushima Japan Village - 54 km
Ueda Fukushima Japan City - 54 km
Shinden Fukushima Japan Village - 54 km
Kashiwabara Fukushima Japan Village - 54 km
Kubota Fukushima Japan Village - 55 km
Kayahama Fukushima Japan Village - 55 km
Kuroda Fukushima Japan Village - 55 km
Tetsuzan Fukushima Japan Village - 55 km
Shionohira Fukushima Japan Village - 55 km
Hirakata Ibaraki Japan Village - 55 km
Hirase Fukushima Japan Village - 56 km
Haramachi Fukushima Japan Village 47000 people 56 km
Yanagiwatado Fukushima Japan Village - 56 km
Iwaisawa Fukushima Japan Village - 56 km
Tabyuto Fukushima Japan Village - 56 km
Ogawa Fukushima Japan Village - 56 km
Kammata Fukushima Japan Village - 56 km
Kami-misaka Fukushima Japan Village - 57 km
Idekura Fukushima Japan Village - 57 km
Ochiai Fukushima Japan Village - 57 km
Shioniwa Fukushima Japan Village - 57 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 74 km

Ports

Name LOCODE Country Distance
Onahama JPONA Japan 41 km
Soma JPSMA Japan 77 km
Hitachi JPHTC Japan 95 km

Dams

Reservoir Dam Name River Year Distance
Sakashita Sakashita Okawaragawa 1973 36 km
Ogaki Ogaki Ukedogawa 1985 51 km
Takashibako Takashiba Samekawa 1961 53 km
Yokokawa Yokokawa Otagawa 1983 56 km
Shitokiko Shitoki Shitokigawa 1983 57 km
Takanokura Takanokura Mizunashigawa 1975 60 km
Mizunuma Mizunuma Hanazonokawa 1966 64 km
Bobatako Sengozawa Kitasugawa 1974 69 km
Tamanotameike Tamano Udagawa 1945 81 km
Fukadachoseichi Fukadachoseichi Tadanogawa 1982 92 km
Fujinumachosuichi Fujimuna Ebanagawa 1948 96 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAINI JAPAN 4 25 km
FUKUSHIMA-DAIICHI JAPAN 6 33 km
TOKAI JAPAN 3 99 km

More information

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