M 5.5 in Japan on 30 Dec 2016 20:08 UTC
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: 5.5M
Depth: 11.94 Km
Lat/Lon: 37.3973 , 141.4103
Event Date: 30 Dec 2016 20:08 UTC
31 Dec 2016 05:08 Local
Exposed Population: 680000 people within 100km
Source: NEIC us10007ntd
Inserted at: 30 Dec 2016 20:27 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us10007ntd Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
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
1152450 0 30 Dec 2016 20:08 5.5M, 11.94km N/A 690 thousand (in 100km) 00:18 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 653,330) . The alertlevel for this event is Green

Intensity Population
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1152450 37.397/141.41 5.5 11.94 0 30 Dec 2016 20:28 00:20 (new episode)
2 0 1152450 37.397/141.41 5.5 11.94 0 30 Dec 2016 22:13 02:05 (upd of #1)
3 0 1152450 37.397/141.41 5.5 11.94 0 08 Feb 2017 07:16 39d 11:08 (upd of #2)

Affected Provinces

Intensity Region Province Country Population
Tohoku Japan 650000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Tomioka Fukushima Japan Village - 36 km
Namie Fukushima Japan Village 22000 people 38 km
Odaka Fukushima Japan Village - 41 km
Yotsukura Fukushima Japan Village - 46 km
Haramachi Fukushima Japan Village 47000 people 48 km
Kashima Fukushima Japan Village - 51 km
Mishima Fukushima Japan Village - 57 km
Taira Fukushima Japan City - 58 km
Nakumura Fukushima Japan Village - 62 km
Ena Fukushima Japan Village - 62 km
Onahama Fukushima Japan City - 68 km
Sakamoto Miyagi Japan Village - 72 km
Ueda Fukushima Japan City - 79 km
Yamashita Miyagi Japan Village - 80 km
Watari Miyagi Japan Village 36000 people 86 km
Kakuda Miyagi Japan Village 33000 people 87 km
Iinosaka Miyagi Japan Village - 95 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
Sendai SDJ 5 Civ. Paved Yes 9800 93 km
Kasuminome 5 0 102 km

Ports

Intensity Name LOCODE Country Distance
Soma JPSMA Japan 62 km
Onahama JPONA Japan 68 km

Dams

Intensity Reservoir Dam Name River Year Distance
Sakashita Sakashita Okawaragawa 1973 41 km
Ogaki Ogaki Ukedogawa 1985 49 km
Yokokawa Yokokawa Otagawa 1983 50 km
Takanokura Takanokura Mizunashigawa 1975 53 km

More information

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