M 4.7 in El Salvador on 28 Dec 2012 16:23 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: 181.1 Km
Lat/Lon: 13.7823 , -88.9038
Event Date: 28 Dec 2012 16:23 UTC
28 Dec 2012 10:23 Local
Exposed Population:
6750000 people within 100km
Source: NEIC usc000eh31
Inserted at: 28 Dec 2012 17:04 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000eh31 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
121673 0.5 28 Dec 2012 16:23 4.7M, 181.1km N/A 6.8 million (in 100km) 00:40 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 El Salvador , Department of Cabanas (population 214,395) . The nearest places are San Salvador, and Cerro Colorado.

Radius Population
100 km 6.8 million people
75 km 5.2 million people
50 km 3.7 million people
20 km 490000 people
10 km 190000 people
5 km 22000 people
2 km 4300 people

Affected Provinces

Region Province Country Population
Cabanas El Salvador 210000 people
Cuscatlan El Salvador 230000 people
San Vicente El Salvador 230000 people
La Paz El Salvador 310000 people
San Salvador El Salvador 1.2 million people
Chalatenango El Salvador 270000 people

Affected populated places

Name Region Province Country City class Population Distance
Cerro Colorado Cabanas El Salvador Village - 2 km
San Salvador San Salvador El Salvador Capital 520000 people 33 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
Ilopango International 616 Civ. Paved Yes 7300 25 km
El Playon 79 40 km

Ports

Name LOCODE Country Distance
La Libertad SVLLD El Salvador 56 km
Puerto El Triunfo El Salvador 69 km

Dams

Reservoir Dam Name River Year Distance
Cerron Grande Lempa 1973 18 km

More information

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