M 4.7 in Algeria on 21 Mar 2015 22:56 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: 10 Km
Lat/Lon: 35.83 , 5.54
Event Date: 21 Mar 2015 22:56 UTC
21 Mar 2015 23:56 Local
Exposed Population:
4667274 people within 100km
Source: EMSC http://www.emsc-csem.org/Earthquake/earthquake.php?id=433095
Inserted at: 21 Mar 2015 23:18 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
EMSC 0.1 0.1
http://www.emsc-csem.org/Earthquake/earthquake.php?id=433095 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
1074430 0.1 21 Mar 2015 22:55 4.8M, 10km N/A 4 million (in 100km) 00:21 NEIC
1074431 0.1 21 Mar 2015 22:56 4.7M, 10km N/A 4.7 million (in 100km) 00:22 EMSC
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 Algeria , Province of Batna (population 910,537) . The nearest places are and Mechtat el Hammam.

Radius Population
100 km 4 million people
75 km 2.4 million people
50 km 1.1 million people
20 km 140000 people
10 km 67000 people
5 km 7300 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Batna Algeria 910000 people
Setif Algeria 1000000 people

Affected populated places

Name Region Province Country City class Population Distance
Mechtat el Hammam Batna Algeria Village - 1 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
Mostepha Ben Boulaid BLJ 822 60 km
Setif QSF 1024 71 km

Dams

Reservoir Dam Name River Year Distance
Ain Zada Bou Sellam 1986 78 km

More information

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