M 6 in Japan on 06 Oct 2017 07:59 UTC

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: 6.0M
Depth: 10 Km
Lat/Lon: 37.485 , 143.9537
Event Date: 06 Oct 2017 07:59 UTC
06 Oct 2017 17:59 Local
Exposed Population: No people within 100km
Source: NEIC us2000b1v8
Inserted at: 06 Oct 2017 08:19 UTC
INFORM Coping capacity of the alert score: 1.1 (Japan)


For more info on GDACS alert score click here.
Tsunami GDACS score
NEIC 0 0 0
us2000b1v8 Scaled population (vector) 0 Max wave scenario 0m  
  C1 shakemap 0 Max wave realtime 0m  
  C2 shakemap 0      
  Country Vulnerability 0      
  INFORM_normalised 0      
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
1183027 0 06 Oct 2017 07:59 6M, 10km 2.8 No people affected 0m (at 00:00) 00:19 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 9,984,608) . The alertlevel for this event is GREEN

Intensity Population
no people
no people
no people

Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1183027 37.485/143.954 6 10 2.8 06 Oct 2017 08:20 00:20 (new episode)
2 0 1183027 37.485/143.954 6 10 2.8 06 Oct 2017 10:40 02:40 (upd of #1)

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
Ishinomaki Miyagi Japan City 110000 people 256 km
Kamata Miyagi Japan Village5 - 259 km
Shinden Miyagi Japan Village5 - 265 km
Kamimachi Miyagi Japan Village5 - 267 km
Wabuchi Miyagi Japan Village5 - 267 km
Nishino Miyagi Japan Village5 - 273 km
Oyanagi Miyagi Japan Village5 - 273 km
Wakuya Miyagi Japan City 18000 people 273 km
Hirawata Miyagi Japan Village5 - 273 km
Sanuma Miyagi Japan City - 276 km
Matsuyama Miyagi Japan Village5 - 279 km
Iinosaka Miyagi Japan Village5 - 280 km
Wakayanagi Miyagi Japan Village5 - 281 km
Tajiri Miyagi Japan Village5 - 283 km
Furukawa Miyagi Japan City 75000 people 289 km

see full list

Critical infrastructure

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


Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Matsushima 2 Civ. Paved Yes 8800
Sendai SDJ 5 Civ. Paved Yes 9800
Kasuminome 5 0


Intensity Reservoir Dam Name River Year
Naganuma Naganuma Hazamagawa 2005

More information

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