M 5.7 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: 5.7M
Depth: 44.77 Km
Lat/Lon: 40.076 , 142.2531
Event Date: 05 Oct 2021 17:46 UTC
06 Oct 2021 02:46 Local
Exposed Population: 210000 people in MMI
680 thousand in 100km
Source: NEIC us6000frzg
Inserted at: 18 Oct 2021 16:12 UTC
INFORM Coping capacity of the alert score: 1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000frzg Scaled population (raster) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 0.57  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


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 ,of Tohoku (population 246,382) . The alertlevel for this event is GREEN

Intensity Population
99000 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1400474 40.081/142.223 5.6 53.5 3.771 05 Oct 2021 18:23 00:37 (new episode)
2 0 1400474 40.081/142.223 5.6 53.5 3.771 05 Oct 2021 18:45 00:59 (upd of #1)
3 0 1400633 40.081/142.223 5.6 53.5 4.833 05 Oct 2021 19:51 02:05 (new episode)
4 0 1400633 40.076/142.253 5.7 44.8 4.993 06 Oct 2021 17:51 1d 00:05 (upd of #3)

Affected Provinces

Intensity Region Province Country Population
Tohoku Japan 600000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Fudai Iwate Japan Village - 29 km
Shimanokoe Iwate Japan Village - 31 km
Noda-Tamagawa Iwate Japan Village - 34 km
Omoto Iwate Japan Village - 35 km
Noda Iwate Japan Village - 37 km
Otomo Iwate Japan Village - 38 km
Kuji Iwate Japan Village - 39 km
Settai Iwate Japan Village - 40 km
Numafukuro Iwate Japan Village - 41 km
Kudschi Iwate Japan Village - 42 km
Motomura Iwate Japan Village - 45 km
Taro Iwate Japan Village - 45 km
Mikkamachi Iwate Japan Village - 45 km
Iwaizumi Iwate Japan Village - 46 km
Uge Iwate Japan Village - 48 km
Futatsuya Iwate Japan Village - 51 km
Kami-ugei Iwate Japan Village - 52 km
Sasasawa Iwate Japan Village - 54 km
Miyako Iwate Japan City 51000 people 54 km
Taneichi Iwate Japan Village - 55 km
Kado Iwate Japan Village - 55 km
Akedo Iwate Japan Village - 56 km
Ono Iwate Japan Village - 58 km
Kawajiri Iwate Japan Village - 63 km
Kanahama Aomori Japan Village - 70 km
Toda Iwate Japan Village - 71 km
Tashiro Aomori Japan Village - 73 km
Karumai Iwate Japan Village - 73 km
Esashika Iwate Japan Village - 74 km
Ichinosawa Aomori Japan Village - 78 km
Hachinohe Aomori Japan City 240000 people 80 km
Fukuoka Iwate Japan Village - 84 km
Kenyoshi Aomori Japan Village - 87 km
Sannohe Aomori Japan Village - 89 km
Ichikawa Aomori Japan Village - 89 km
Ogida Aomori Japan Village - 90 km
Mita Aomori Japan Village - 90 km
Tegurabashi Aomori Japan Village - 94 km
Johoji Iwate Japan Village - 94 km
Gonohe Aomori Japan Village - 95 km
Furumagi Aomori Japan Village - 97 km
Takko Aomori Japan Village - 98 km
Shikada Aomori Japan Village - 100 km
Misawa Aomori Japan Village 43000 people 101 km
Fujishima Aomori Japan Village - 103 km
Shimizugashira Aomori Japan Village - 103 km
Sambongi Aomori Japan Village - 106 km
Tanichito Aomori Japan Village - 108 km
Ogara Aomori Japan Village - 109 km
Horyo Aomori Japan Village - 111 km

see full list


Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Hachinohe HHE 46 Mil. Paved Yes 7300 85 km
Misawa Naf MSJ 36 Mil. Paved Yes 10000 102 km

Ports

Intensity Name LOCODE Country Distance
Fudai Japan 27 km
Miyako JPMYK Japan 54 km
Hachinohe JPHHE Japan 78 km

Dams

Intensity Reservoir Dam Name River Year Distance
Setsukinaidamuko Setsukinai Setsukinaigawa 1986 65 km
Yukiyagawa Yukiyagawa Yukiyagawa 1976 67 km

More information

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