M 4.1 in Georgia on 18 Oct 2011 23:26 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: 4.1M
Depth: 2 Km
Lat/Lon: 42.53 , 44.09
Event Date: 18 Oct 2011 23:26 UTC
19 Oct 2011 03:26 Local
Exposed Population:
1460000 people within 100km
Source: EMSC
Inserted at: 19 Oct 2011 04:52 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
EMSC 0.5 0.5
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
112240 0.5 18 Oct 2011 23:26 4.1M, 2km N/A 1.5 million (in 100km) 05:25 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 Georgia , Autonomous Region of T'bilisi. The nearest places are Vladikavkaz, and Bagiata.

Radius Population
100 km no people
75 km no 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
T'bilisi Georgia -
Respublika Severnaya Osetiya Russian Federation 650000 people

Affected populated places

Name Region Province Country City class Population Distance
Bagiata Georgia Village - 5 km
Vladikavkaz Severnaya Osetiya-Alaniya Russia Major city 310000 people 73 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
Tskhinvali South 732 47 km
Sachkhere 443 56 km

Dams

Reservoir Dam Name River Year Distance
Zhinvali Aragvi n/a 72 km

More information

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