M 4.7 in Indonesia on 01 Apr 2013 16:40 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: 4.7M
Depth: 33.5 Km
Lat/Lon: 1.1418 , 97.1357
Event Date: 01 Apr 2013 16:40 UTC
01 Apr 2013 23:40 Local
Exposed Population:
740000 people within 100km
Source: NEIC us2013nlah
Inserted at: 01 Apr 2013 18:29 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
us2013nlah 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
123549 0.5 01 Apr 2013 16:40 4.7M, 33.5km N/A 740 thousand (in 100km) 01:48 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 Indonesia , Province of Sumatera Utara (population 9,319,344) .

Radius Population
100 km 760000 people
75 km 460000 people
50 km 220000 people
20 km 13000 people
10 km <1000 people
5 km no people
2 km no people

Affected Provinces

Country Region Province Population
Indonesia Sumatera Utara 9.3 million people
Indonesia Aceh 4.3 million people

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
Gunungsitoli GNS unknown 52 km
Binaka 6 61 km

Ports

Name LOCODE Country Distance
Gunungsitoli Indonesia 51 km

More information

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