M 5.6 in Japan on 25 Feb 2018 16:28 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: 5.6M
Depth: 30.77 Km
Lat/Lon: 37.5905 , 141.7455
Event Date: 25 Feb 2018 16:28 UTC
26 Feb 2018 01:28 Local
Exposed Population: 530000 people within 100km
Source: NEIC us2000d7pu
Inserted at: 25 Feb 2018 17:21 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
us2000d7pu Scaled population (vector) -8  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 0.57  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1200549 0 25 Feb 2018 16:28 5.5M, 41.25km 3.82 N/A (in MMI>=VII) 00:19 NEIC
1200552 0 25 Feb 2018 16:28 5.6M, 30.77km 4 N/A (in MMI>=VII) 00:52 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 Kayahama, Onaba, Kiyohashi, Minami-Ibi, Futaba, Odaka, Namie, Takahira, Oragahama, Onoda, and Kashima.

Radius Population
100 km 540000 people
75 km 76000 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
Kanto Japan 38.5 million people
Chubu Japan 5.2 million people
Hokkaido Japan 5.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Kayahama Fukushima Japan Village - 65 km
Onaba Fukushima Japan Village - 65 km
Kiyohashi Fukushima Japan Village - 65 km
Minami-Ibi Fukushima Japan Village - 66 km
Futaba Fukushima Japan Village - 66 km
Odaka Fukushima Japan Village - 67 km
Namie Fukushima Japan Village 22000 people 67 km
Takahira Fukushima Japan Village - 67 km
Oragahama Fukushima Japan Village - 68 km
Onoda Fukushima Japan Village - 69 km
Isobe Fukushima Japan Village - 69 km
Kariyado Fukushima Japan Village - 70 km
Kashima Fukushima 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
Sendai SDJ 5 Civ. Paved Yes 9800 95 km

Ports

Name LOCODE Country Distance
Soma JPSMA Japan 74 km
Onagawa JPONG Japan 98 km
Ishinomaki JPISM Japan 99 km

Dams

Reservoir Dam Name River Year Distance
Yokokawa Yokokawa Otagawa 1983 74 km
Sakashita Sakashita Okawaragawa 1973 75 km
Takanokura Takanokura Mizunashigawa 1975 76 km
Ogaki Ogaki Ukedogawa 1985 77 km
Tamanotameike Tamano Udagawa 1945 91 km

Nuclear plants

Name Country Reactors Distance
FUKUSHIMA-DAIICHI JAPAN 6 66 km
FUKUSHIMA-DAINI JAPAN 4 70 km
ONAGAWA JAPAN 3 92 km

More information

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