M 4.5 in New Zealand on 21 Jul 2013 15:22 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: 4.5M
Depth: 10 Km
Lat/Lon: -41.46 , 174.29
Event Date: 21 Jul 2013 15:22 UTC
22 Jul 2013 03:22 Local
Exposed Population:
518026 people within 100km
Source: NEIC
Inserted at: 21 Jul 2013 18:50 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
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
1000761 0 21 Jul 2013 15:22 4.5M, 10km N/A 520 thousand (in 100km) 03:28 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 Nelson-Marlborough. The nearest places are and Wellington.

Radius Population
100 km 520000 people
75 km 400000 people
50 km 190000 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Nelson-Marlborough New Zealand -

Affected populated places

Name Region Province Country City class Population Distance
Wellington Wellington New Zealand Capital 180000 people 43 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
Picton Koromiko PCN unknown 25 km
Woodbourne BHE 33 Civ. Paved Yes 4600 36 km

Ports

Name LOCODE Country Distance
Blenheim NZBHE New Zealand 28 km
Cape Campbell New Zealand 30 km
Picton NZPCN New Zealand 31 km

Dams

Reservoir Dam Name River Year Distance
Taylor Taylor n/a 33 km

More information

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