M 5.3 in South Africa on 05 Aug 2014 10:22 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a medium humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 5.3M
Depth: 10 Km
Lat/Lon: -26.99 , 26.74
Event Date: 05 Aug 2014 10:22 UTC
05 Aug 2014 12:22 Local
Exposed Population: 1220000 people within 100km
Source: NEIC
Inserted at: 05 Aug 2014 10:45 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 1.4 1.4
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
1056816 1.4 05 Aug 2014 10:22 5.3M, 10km N/A 1.2 million (in 100km) 00:22 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 South Africa , Province of Free State (population 2,535,947) . The nearest places are Johannesburg, and Vaal Reefs.

Radius Population
100 km 1.2 million people
75 km 680000 people
50 km 510000 people
20 km 310000 people
10 km 46000 people
5 km 6200 people
2 km 1700 people

Affected Provinces

Region Province Country Population
Free State South Africa 2.5 million people
North West South Africa 3.3 million people

Affected populated places

Name Region Province Country City class Population Distance
Vaal Reefs North West South Africa Village - 6 km
Johannesburg Gauteng (PWV) South Africa Major city 2 million people 161 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
Klerksdorp KXE 1355 Civ. Paved No 4900 13 km
Hendrik Potgieter 1291 Civ. Paved No 4000 44 km
Potchefstroom 1378 Civ. Paved No 4800 49 km

Dams

Reservoir Dam Name River Year Distance
Joan Neser Schoonspruit 1977 23 km

More information

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