M 4.5 in Japan on 25 Jan 2015 13:02 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This is a preliminary assessment. The final GDACS Alert Level has been/will be published using more detailed information.

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 4.5M
Depth: 77.34 Km
Lat/Lon: 39.9243 , 141.7415
Event Date: 25 Jan 2015 13:02 UTC
25 Jan 2015 22:02 Local
Exposed Population:
1639722 people within 100km
Source: NEIC
Inserted at: 25 Jan 2015 15:47 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC n.a n.a
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
1070335 n.a 25 Jan 2015 13:02 4.5M, 77.34km N/A 1.6 million (in 100km) 02:44 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 Morioka, Takasuka, and Honden.

Radius Population
100 km 1.6 million people
75 km 1.1 million people
50 km 210000 people
20 km 24000 people
10 km 6100 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Tohoku Japan 10 million people

Affected populated places

Name Region Province Country City class Population Distance
Takasuka Iwate Japan Village - 4 km
Honden Iwate Japan Village - 5 km
Morioka Iwate Japan Major city 290000 people 56 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
Ippongibara 304 55 km
Hachinohe HHE 46 Mil. Paved Yes 7300 74 km
Hanamaki HNA 91 Civ. Paved Yes 6500 75 km

Ports

Name LOCODE Country Distance
Fudai Japan 19 km
Miyako JPMYK Japan 38 km

Dams

Reservoir Dam Name River Year Distance
Setsukinaidamuko Setsukinai Setsukinaigawa 1986 30 km

More information

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