M 6.9 in New Zealand from 21 Jul 2013 05:09 UTC to 05:09

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: 6.9M
Depth: 31 Km
Lat/Lon: -42.05 , 174.94
Event Date: 21 Jul 2013 05:09 UTC
21 Jul 2013 17:09 Local
Exposed Population:
300000 people within 100km
Source: NEIC
Inserted at: 21 Jul 2013 07:20 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0.8 0 0.8
Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0.09m  
  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
1000744 0.8 21 Jul 2013 05:09 6.9M, 31km N/A 310 thousand (in 100km) 0.1m (at 00:25) 02:11 NEIC
1000745 0.8 21 Jul 2013 05:09 6.9M, 10.1km N/A 430 thousand (in 100km) 0.5m (at 01:04) 02:20 NEIC
1000748 0.1 21 Jul 2013 05:09 6.5M, 14km N/A 420 thousand (in 100km) 0.2m (at 01:06) 02:56 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 New Zealand , County of Wellington (population 154,454) . The nearest places are and Wellington.

Radius Population
100 km 310000 people
75 km 2100 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
Wellington New Zealand 150000 people

Affected populated places

Name Region Province Country City class Population Distance
Wellington Wellington New Zealand Capital 180000 people 83 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
Wellington International WLG 12 Civ. Paved Yes 6300 81 km

Ports

Name LOCODE Country Distance
Cape Palliser New Zealand 56 km
Cape Campbell New Zealand 66 km

Dams

Reservoir Dam Name River Year Distance
Upper Karori Kaiwharawhara 1908 85 km
Lower Karori Kaiwharawhara 1872 86 km
Morton Wainuiomata 1911 88 km

More information

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