M 4.9 in Japan on 17 Apr 2017 18:57 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: 11.96 Km
Lat/Lon: 27.7378 , 130.2658
Event Date: 17 Apr 2017 18:57 UTC
18 Apr 2017 03:57 Local
Exposed Population:
About 9000 people within 100km
Source: NEIC us10008iey
Inserted at: 17 Apr 2017 23:03 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us10008iey Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1164350 0 17 Apr 2017 18:57 4.8M, 21.34km N/A 10 thousand (in 100km) 02:41 NEIC
1164358 0 17 Apr 2017 18:57 4.9M, 11.96km N/A 9 thousand (in 100km) 04:05 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 Kyushu (population 13,296,000) . The nearest places are Urabaru, Uekatsu, Aden, Araki, Somachi, Akatsure, and Shitooke.

Radius Population
100 km 11000 people
75 km 8100 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
Kyushu Japan 13.3 million people
Okinawa Japan 1.2 million people

Affected populated places

Name Region Province Country City class Population Distance
Urabaru Okinawa Japan Village - 64 km
Uekatsu Okinawa Japan Village - 65 km
Aden Okinawa Japan Village - 65 km
Araki Okinawa Japan Village - 67 km
Somachi Okinawa Japan Village - 67 km
Akatsure Okinawa Japan Village - 68 km
Shitooke Okinawa Japan Village - 69 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
Kikai 6 Civ. Paved Yes 3900 69 km
Amami O Shima ASJ 8 Civ. Paved Yes 6500 91 km

More information

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