M 4.9 in Japan on 25 May 2016 05:22 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: 4.9M
Depth: 55.87 Km
Lat/Lon: 41.0825 , 142.1672
Event Date: 25 May 2016 05:22 UTC
25 May 2016 14:22 Local
Exposed Population:
587450 people within 100km
Source: NEIC
Inserted at: 25 May 2016 05:42 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.1 0.1
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.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1129229 0.1 25 May 2016 05:22 4.9M, 55.87km N/A 590 thousand (in 100km) 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 , Region of Tohoku (population 9,984,608) . The nearest places are Tomari, Kodanosawa, Dedo, Oibegawa, Sarugamori, Shinaya, Rokkasho, Takahoko, Shiriya, and Ichiyanagi.

Radius Population
100 km 550000 people
75 km 18000 people
50 km no 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
Sakhalinskaya oblast' Russian Federation 730000 people
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Tomari Aomori Japan Village - 65 km
Kodanosawa Aomori Japan Village - 67 km
Dedo Aomori Japan Village - 67 km
Oibegawa Aomori Japan Village - 68 km
Sarugamori Aomori Japan Village - 69 km
Shinaya Aomori Japan Village - 69 km
Rokkasho Aomori Japan Village - 69 km
Takahoko Aomori Japan Village - 69 km
Shiriya Aomori Japan Village - 70 km
Ichiyanagi Aomori Japan Village - 70 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
Misawa Naf MSJ 36 Mil. Paved Yes 10000 79 km
Hachinohe HHE 46 Mil. Paved Yes 7300 83 km

Ports

Name LOCODE Country Distance
Hachinohe JPHHE Japan 80 km
Ominato JPOMT Japan 86 km

Dams

Reservoir Dam Name River Year Distance
Tenma Tenma Tsubokawa 1968 99 km

Nuclear plants

Name Country Reactors Distance
HIGASHI DORI JAPAN 1 74 km

More information

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