M 4.6 in Japan on 26 Feb 2021 15:33 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: 4.6M
Depth: 79.47 Km
Lat/Lon: 37.2279 , 141.2496
Event Date: 26 Feb 2021 15:33 UTC
27 Feb 2021 00:33 Local
Exposed Population:
2090000 people within 100km
Source: NEIC us7000ddx9
Inserted at: 26 Feb 2021 16:42 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
us7000ddx9 Scaled population (vector) 5.97  
  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
1360773 0 26 Feb 2021 15:33 4.6M, 79.47km N/A 2.1 million (in 100km) 01:08 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, Ide, Kami-Asamigawa, Kami-Shigeoka, Naraha, Oragahama, Tomioka, Yotsukura, Arayashik, Bogoya, and Yamakoya.

Radius Population
100 km 2.1 million people
75 km 680000 people
50 km 300000 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 - 22 km
Ide Fukushima Japan Village - 23 km
Kami-Asamigawa Fukushima Japan Village - 23 km
Kami-Shigeoka Fukushima Japan Village - 23 km
Naraha Fukushima Japan Village - 24 km
Oragahama Fukushima Japan Village - 24 km
Tomioka Fukushima Japan Village - 25 km
Yotsukura Fukushima Japan Village - 25 km
Arayashik Fukushima Japan Village - 26 km
Bogoya Fukushima Japan Village - 26 km
Takatsudo Fukushima Japan Village - 29 km
Hokidaira Fukushima Japan Village - 30 km
Omori Fukushima Japan Village - 30 km
Dozan Fukushima Japan Village - 30 km
Ogawara Fukushima Japan Village - 31 km
Otojiro Fukushima Japan Village - 32 km
Okuma Fukushima Japan Village - 32 km
Aratame Fukushima Japan Village - 32 km
Futaba Fukushima Japan Village - 33 km
Nakayama Fukushima Japan Village - 33 km
Gomaisawa Fukushima Japan Village - 34 km
Shimo-Takaku Fukushima Japan Village - 34 km
Taira Fukushima Japan City - 35 km
Toyoma Fukushima Japan Village - 36 km
Mishima Fukushima Japan Village - 36 km
Kiyohashi Fukushima Japan Village - 36 km
Odashiro Fukushima Japan Village - 36 km
Takahagi Fukushima Japan Village - 36 km
Uzugawa Fukushima Japan Village - 37 km
Namie Fukushima Japan Village 22000 people 37 km
Onoda Fukushima Japan Village - 37 km
Yoshima Fukushima Japan Village - 37 km
Eda Fukushima Japan Village - 37 km
Shimo-Kawauchi Fukushima Japan Village - 38 km
Ena Fukushima Japan Village - 39 km
Shimo-Yata Fukushima Japan Village - 39 km
Ohahama Fukushima Japan Village - 39 km
Kariyado Fukushima Japan Village - 40 km
Tsuzura Fukushima Japan Village - 40 km
Doyaba Fukushima Japan Village - 40 km
Onaba Fukushima Japan Village - 40 km
Kami-Kawauchi Fukushima Japan Village - 41 km
Sakashiuchi Fukushima Japan Village - 42 km
Sumiyoshi Fukushima Japan Village - 42 km
Jikenjo Fukushima Japan Village - 43 km
Shidamyo Fukushima Japan Village - 43 km
Tsunagi Fukushima Japan Village - 43 km
Nakanouchi Fukushima Japan Village - 43 km
Odaka Fukushima Japan Village - 44 km
Okubo Fukushima Japan Village - 44 km
Sekifune Fukushima Japan Village - 44 km
Goto Fukushima Japan Village - 44 km
Kami-Nagai Fukushima Japan Village - 44 km
Sekimori Fukushima Japan Village - 44 km
Kawamae Fukushima Japan Village - 44 km
Mabarado Fukushima Japan Village - 45 km
Onahama Fukushima Japan City - 45 km
Unejiri Fukushima Japan Village - 45 km
Furumichi Fukushima Japan Village - 46 km
Takadaiima Fukushima Japan Village - 46 km
Ohana Fukushima Japan Village - 47 km
Tanebe Fukushima Japan Village - 47 km
Kodeya Fukushima Japan Village - 48 km
Kami-Okeuri Fukushima Japan Village - 48 km
Obama Fukushima Japan Village - 48 km
Kami-Kamato Fukushima Japan Village - 48 km
Nakadera Fukushima Japan Village - 48 km
Ojiro Fukushima Japan Village - 48 km
Hirusone Fukushima Japan Village - 49 km
Shimo-Misaka Fukushima Japan Village - 49 km
Kayahama Fukushima Japan Village - 49 km
Gomizawa Fukushima Japan Village - 49 km
Kashiwabara Fukushima Japan Village - 50 km
Tetsuzan Fukushima Japan Village - 50 km
Haramachi Fukushima Japan Village 47000 people 51 km
Soeno Fukushima Japan Village - 51 km
Iwaisawa Fukushima Japan Village - 52 km
Iritono Fukushima Japan Village - 52 km
Nagakubo Fukushima Japan Village - 52 km
Kami-Yamoda Fukushima Japan Village - 52 km
Kami-Ichigaya Fukushima Japan Village - 52 km
Takahira Fukushima Japan Village - 52 km
Yanagiwatado Fukushima Japan Village - 52 km
Otsu Fukushima Japan Village - 52 km
Taki Fukushima Japan Village - 53 km
Kunugidaira Fukushima Japan Village - 53 km
Ochiai Fukushima Japan Village - 53 km
Hirase Fukushima Japan Village - 53 km
Kammata Fukushima Japan Village - 53 km
Shinden Fukushima Japan Village - 54 km
Kita-Nagano Fukushima Japan Village - 55 km
Sugaya Fukushima Japan Village - 55 km
Kami-misaka Fukushima Japan Village - 55 km
Shioniwa Fukushima Japan Village - 56 km
Hatta Fukushima Japan Village - 56 km
Kuroda Fukushima Japan Village - 56 km
Terashita Fukushima Japan Village - 56 km
Shionohira Fukushima Japan Village - 56 km
Ueda Fukushima Japan City - 56 km
Shiroishi Fukushima Japan Village - 56 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 73 km

Ports

Name LOCODE Country Distance
Onahama JPONA Japan 44 km
Soma JPSMA Japan 72 km
Hitachi JPHTC Japan 98 km

Dams

Reservoir Dam Name River Year Distance
Sakashita Sakashita Okawaragawa 1973 32 km
Ogaki Ogaki Ukedogawa 1985 46 km
Yokokawa Yokokawa Otagawa 1983 51 km
Takanokura Takanokura Mizunashigawa 1975 55 km
Takashibako Takashiba Samekawa 1961 55 km
Shitokiko Shitoki Shitokigawa 1983 59 km
Mizunuma Mizunuma Hanazonokawa 1966 66 km
Bobatako Sengozawa Kitasugawa 1974 68 km
Tamanotameike Tamano Udagawa 1945 76 km
Fukadachoseichi Fukadachoseichi Tadanogawa 1982 90 km
Fujinumachosuichi Fujimuna Ebanagawa 1948 94 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAINI JAPAN 4 22 km
FUKUSHIMA-DAIICHI JAPAN 6 28 km

More information

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