M 5.6 in Japan on 05 Oct 2021 17:46 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: 5.6M
Depth: 53.46 Km
Lat/Lon: 40.0811 , 142.223
Event Date: 05 Oct 2021 17:46 UTC
06 Oct 2021 02:46 Local
Exposed Population: About 98000 people in MMI
790 thousand in 100km
Source: NEIC us6000frzg
Inserted at: 18 Oct 2021 16:14 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
us6000frzg Scaled population (raster) 5.41  
  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
1400474 0 05 Oct 2021 17:46 5.6M, 53.46km 4.83 N/A (in MMI>=VII) 12d 22:28 NEIC
1400633 0 05 Oct 2021 17:46 5.7M, 44.77km 4.99 N/A (in MMI>=VII) 12d 22:26 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 Fudai, Shimanokoe, Shimanokoshi, Horinai, Kiriushi, Noda-Tamagawa, Torii, Kuki, Kosode, Hirananamisawa, and Osawa.

Radius Population
100 km 790000 people
75 km 230000 people
50 km 60000 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
Hokkaido Japan 5.8 million people
Kanto Japan 38.5 million people
Chubu Japan 5.2 million people
Sakhalinskaya oblast' Russian Federation 730000 people

Affected populated places

Name Region Province Country City class Population Distance
Fudai Iwate Japan Village - 27 km
Shimanokoe Iwate Japan Village - 29 km
Shimanokoshi Iwate Japan Village - 30 km
Horinai Iwate Japan Village - 31 km
Kiriushi Iwate Japan Village - 32 km
Noda-Tamagawa Iwate Japan Village - 32 km
Torii Iwate Japan Village - 33 km
Kuki Iwate Japan Village - 33 km
Kosode Iwate Japan Village - 33 km
Hirananamisawa Iwate Japan Village - 33 km
Tamagawa Iwate Japan Village - 34 km
Omoto Iwate Japan Village - 34 km
Hamaiwaizumi Iwate Japan Village - 34 km
Noda Iwate Japan Village - 34 km
Nei Iwate Japan Village - 35 km
Ojiri Iwate Japan Village - 36 km
Hagyu Iwate Japan Village - 36 km
Kuji Iwate Japan Village - 36 km
Otomo Iwate Japan Village - 37 km
Minami-Samuraihama Iwate Japan Village - 37 km
Ube Iwate Japan Village - 38 km
Tetsuzan Iwate Japan Village - 38 km
Nakasato Iwate Japan Village - 38 km
Miyamoto Iwate Japan Village - 38 km
Settai Iwate Japan Village - 39 km
Numafukuro Iwate Japan Village - 39 km
Minato Iwate Japan Village - 39 km
Honnami Iwate Japan Village - 39 km
Okuzo Iwate Japan Village - 40 km
Aonotaki Iwate Japan Village - 40 km
Muroba Iwate Japan Village - 40 km
Shiromae Iwate Japan Village - 40 km
Kudschi Iwate Japan Village - 40 km
Hanjoshi Iwate Japan Village - 41 km
Kami-Tokusari Iwate Japan Village - 42 km
Kita-Samuraihama Iwate Japan Village - 42 km
Takasuka Iwate Japan Village - 42 km
Mikkamachi Iwate Japan Village - 43 km
Motomura Iwate Japan Village - 43 km
Akamatatsu Iwate Japan Village - 43 km
Hataketa Iwate Japan Village - 44 km
Sukinosawa Iwate Japan Village - 44 km
Shima-Tokusari Iwate Japan Village - 44 km
Sunasawa Iwate Japan Village - 44 km
Taro Iwate Japan Village - 44 km
Iwaizumi Iwate Japan Village - 45 km
Honden Iwate Japan Village - 45 km
Uge Iwate Japan Village - 45 km
Takashizu Iwate Japan Village - 46 km
Kiurinai Iwate Japan Village - 47 km
Ko-Tashiro Iwate Japan Village - 47 km
Futatsuya Iwate Japan Village - 48 km
Kawadai Iwate Japan Village - 48 km
Tsunagi Iwate Japan Village - 49 km
Nishoishi Iwate Japan Village - 49 km
Yagi Iwate Japan Village - 49 km
Sakikuwagasaki Iwate Japan Village - 49 km
Odaira Iwate Japan Village - 50 km
Matsuyashiki Iwate Japan Village - 50 km
Kami-ugei Iwate Japan Village - 50 km
Sakiyama Iwate Japan Village - 51 km
Matsubashi Iwate Japan Village - 51 km
Shimo-Gonya Iwate Japan Village - 51 km
Oguni Iwate Japan Village - 51 km
Anazawa Iwate Japan Village - 53 km
Taneichi Iwate Japan Village - 53 km
Sasasawa Iwate Japan Village - 53 km
Kado Iwate Japan Village - 53 km
Tamagawa Iwate Japan Village - 53 km
Shimohata Iwate Japan Village - 53 km
Seki Iwate Japan Village - 54 km
Akedo Iwate Japan Village - 54 km
Sakamoto Iwate Japan Village - 54 km
Miyako Iwate Japan City 51000 people 54 km
Ono Iwate Japan Village - 55 km
Okubo Iwate Japan Village - 56 km
Owatari Iwate Japan Village - 56 km
Kawai Iwate Japan Village - 56 km
Asanai Iwate Japan Village - 57 km
Omoe Iwate Japan Village - 57 km
Ochiai Iwate Japan Village - 57 km
Tetsuzan Iwate Japan Village - 57 km
Sekiguchi Iwate Japan Village - 58 km
Neichi Iwate Japan Village - 58 km
Kawasiri Iwate Japan Village - 58 km
Roki Iwate Japan Village - 59 km
Utsuno Iwate Japan Village - 59 km
Hinosawa Iwate Japan Village - 59 km
Akamae Iwate Japan Village - 60 km
Hikime Iwate Japan Village - 60 km
Jonai Iwate Japan Village - 61 km
Denkiani Iwate Japan Village - 61 km
Kawajiri Iwate Japan Village - 61 km
Nikarube Iwate Japan Village - 61 km
Toyaba Iwate Japan Village - 61 km
Kadonohama Iwate Japan Village - 61 km
Ushigasawa Iwate Japan Village - 62 km
Tsugaruishi Iwate Japan Village - 62 km
Wainai Iwate Japan Village - 62 km
Matakubo Iwate Japan Village - 62 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
Hachinohe HHE 46 Mil. Paved Yes 7300 83 km
Ippongibara 304 0 99 km

Ports

Name LOCODE Country Distance
Fudai Japan 25 km
Miyako JPMYK Japan 54 km
Yamada Japan 72 km
Hachinohe JPHHE Japan 75 km
Kamaishi JPKIS Japan 94 km

Dams

Reservoir Dam Name River Year Distance
Setsukinaidamuko Setsukinai Setsukinaigawa 1986 62 km
Yukiyagawa Yukiyagawa Yukiyagawa 1976 65 km
Gandoko Gando Tandogawa 1960 78 km
Sotoyama Sotoyama Sotoyamagawa 1943 87 km
Tsunatori Tsunatori Nagatsugawa 1982 96 km
Nanbukatafujiko Shijushida Kitakamigawa 1968 99 km

More information

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