M 5.3 in Japan on 15 Jul 2013 13:41 UTC
EQ parameters

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: 5.3M
Depth: 31.5 Km
Lat/Lon: 23.7993 , 122.8695
Event Date: 15 Jul 2013 13:41 UTC
15 Jul 2013 21:41 Local
Exposed Population:
About 2316 people within 100km
Source: NEIC
Inserted at: 15 Jul 2013 16:11 UTC


For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
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
1000654 0 15 Jul 2013 13:41 5.3M, 31.5km N/A 2 thousand (in 100km) 02:29 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 Okinawa (population 1,242,315) . The nearest places are and Hua-lien.

Radius Population
100 km 2300 people
75 km 1300 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
Okinawa Japan 1.2 million people

Affected populated places

Name Region Province Country City class Population Distance
Hua-lien Hua-lien Taiwan Major city - 131 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.


Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Yonaguni OGN 21 Civ. Paved Yes 4900 75 km
Hateruma HTR unknown 97 km

More information

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