M 5.1 in Indonesia on 21 Jun 2011 16:25 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.

Updated: this report is based on episode 1.

Earthquake Magnitude: 5.1M
Depth: Km
Lat/Lon: -1.8426 , 100.167
Event Date: 21 Jun 2011 16:25 UTC
21 Jun 2011 23:25 Local
Exposed Population:
270000 people within 100km
Source: NEIC usc0004czk
Inserted at: 21 Jun 2011 17:24 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc0004czk 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
110114 0.5 21 Jun 2011 16:25 5.1M, 21km N/A 960 thousand (in 100km) 00:20 NEIC
110118 0.5 21 Jun 2011 16:25 5.1M, 33.2km N/A 910 thousand (in 100km) 00:51 NEIC
110119 0.5 21 Jun 2011 16:25 5.1M, 41.5km N/A 270 thousand (in 100km) 00:59 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 Barat (population 4,301,938) . The nearest places are Sirantih, Pasartaluk, Kambang, Limaumanis, Sikabur, Kajoesabatang, Pasarkuok, Kotabaroe, Painan, Pasar Baharoe, and Padang.

Radius Population
100 km 1.1 million people
75 km 200000 people
50 km 1900 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Sumatera Barat Indonesia 4.3 million people
Jambi Indonesia 2.2 million people
Bengkulu Indonesia 1.3 million people
Riau Indonesia 3.5 million people
Sumatera Selatan Indonesia 6.6 million people
Sumatera Utara Indonesia 9.3 million people
Johor Malaysia 2.3 million people
Melaka Malaysia 640000 people
Aceh Indonesia 4.3 million people

Affected populated places

Name Region Province Country City class Population Distance
Sirantih Sumatera Barat Indonesia Village - 52 km
Pasartaluk Sumatera Barat Indonesia Village - 53 km
Kambang Sumatera Barat Indonesia Village - 53 km
Limaumanis Sumatera Barat Indonesia Village - 54 km
Sikabur Sumatera Barat Indonesia Village - 55 km
Kajoesabatang Sumatera Barat Indonesia Village - 59 km
Pasarkuok Sumatera Barat Indonesia Village - 60 km
Kotabaroe Sumatera Barat Indonesia Village - 64 km
Painan Sumatera Barat Indonesia Village - 64 km
Pasar Baharoe Sumatera Barat Indonesia Village - 64 km
Sungaitalang Sumatera Barat Indonesia Village - 67 km
Kotatinggi Sumatera Barat Indonesia Village - 67 km
Paritpandjang Sumatera Barat Indonesia Village - 68 km
Ganting Sumatera Barat Indonesia Village - 69 km
Padang Sumatera Barat Indonesia Major city 830000 people 97 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
Sipora Rokot RKO unknown 0 69 km

Ports

Name LOCODE Country Distance
Telukbayur Indonesia 92 km
Padang (Teluk Bajur), Sumatra IDPDG Indonesia 98 km

More information

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