M 4.7 in New Zealand on 21 Jul 2013 12:39 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: 12.3 Km
Lat/Lon: -41.6769 , 174.3564
Event Date: 21 Jul 2013 12:39 UTC
22 Jul 2013 00:39 Local
Exposed Population:
427599 people within 100km
Source: NEIC
Inserted at: 21 Jul 2013 15:17 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
1000756 0 21 Jul 2013 12:39 4.7M, 12.3km N/A 430 thousand (in 100km) 02:38 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 Hauwai, Blind River, Taimate, Seddon, Dashwood, Ward, Mirza, Wharanui, Blenheim, Grovetown, and Homedale.

Radius Population
100 km 410000 people
75 km 210000 people
50 km 30000 people
20 km <1000 people
10 km <1000 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
Hauwai Marlborough New Zealand Village - 16 km
Blind River Marlborough New Zealand Village - 17 km
Taimate Marlborough New Zealand Village - 18 km
Seddon Marlborough New Zealand Village <1000 people 21 km
Dashwood Marlborough New Zealand Village - 22 km
Ward Marlborough New Zealand Village - 22 km
Mirza Marlborough New Zealand Village - 26 km
Wharanui Marlborough New Zealand Village - 32 km
Blenheim Marlborough New Zealand City 28000 people 36 km
Grovetown Marlborough New Zealand Village - 38 km
Altimarloch Marlborough New Zealand Village - 39 km
Spring Creek Marlborough New Zealand Village - 40 km
Welds Hill Marlborough New Zealand Village - 40 km
Tuamarina Marlborough New Zealand Village - 42 km
Rapaura Marlborough New Zealand Village - 43 km
Woodbourne Marlborough New Zealand Village - 44 km
Kekerengu Canterbury New Zealand Village - 44 km
Renwick Marlborough New Zealand Village - 46 km
Para Marlborough New Zealand Village - 48 km
Koromiko Marlborough New Zealand Village - 50 km
Kaituna Marlborough New Zealand Village - 51 km
Picton Marlborough New Zealand Village 4200 people 51 km
Awapiri Marlborough New Zealand Village - 52 km
Waikawa Marlborough New Zealand Village - 52 km
Island Bay Wellington New Zealand Village - 54 km
Okukari Marlborough New Zealand Village - 55 km
Berhampore Wellington New Zealand Village - 55 km
Okaramio Marlborough New Zealand Village - 56 km
Brooklyn Wellington New Zealand Village - 56 km
Wellington Wellington New Zealand Capital 180000 people 56 km
Karori Wellington New Zealand Village - 56 km
Camden Marlborough New Zealand Village - 57 km
Kilbirnie Wellington New Zealand Village - 57 km
Grove Marlborough New Zealand Village - 57 km
Hataitai Wellington New Zealand Village - 58 km
Avondale Marlborough New Zealand Village - 58 km
Seatoun Wellington New Zealand Village - 58 km
Miramar Wellington New Zealand Village - 58 km
Linkwater Marlborough New Zealand Village - 59 km
Wadestown Wellington New Zealand Village - 60 km
Kenepuru Head Marlborough New Zealand Village - 61 km
Kaiwharawhara Wellington New Zealand Village - 61 km
Ngaio Wellington New Zealand Village - 61 km
Clarence Canterbury New Zealand Village - 61 km
Broughton Bay Marlborough New Zealand Village - 62 km
Khandallah Wellington New Zealand Village - 63 km
Erina Marlborough New Zealand Village - 63 km
Onauku Marlborough New Zealand Village - 64 km
Ngauranga Wellington New Zealand Village - 64 km
Eastbourne Wellington New Zealand Village - 64 km
Glenlee Marlborough New Zealand Village - 64 km
Johnsonville Wellington New Zealand Village - 65 km
Havelock Marlborough New Zealand Village <1000 people 65 km
Ohariu Wellington New Zealand Village - 66 km
Days Bay Wellington New Zealand Village - 66 km
Crail Bay Marlborough New Zealand Village - 67 km
Manaroa Marlborough New Zealand Village - 68 km
Endeavour Inlet Marlborough New Zealand Village - 68 km
Wairau Valley Marlborough New Zealand Village - 68 km
Korokoro Wellington New Zealand Village - 69 km
Petone Wellington New Zealand Village - 69 km
Deep Creek Marlborough New Zealand Village - 69 km
Homedale Wellington New Zealand Village - 70 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
Woodbourne BHE 33 Civ. Paved Yes 4600 43 km
Picton Koromiko PCN unknown 0 45 km
Wellington International WLG 12 Civ. Paved Yes 6300 57 km

Ports

Name LOCODE Country Distance
Cape Campbell New Zealand 7 km
Blenheim NZBHE New Zealand 21 km
Picton NZPCN New Zealand 52 km
Wellington NZWLG New Zealand 57 km
Petone New Zealand 69 km
Lower Hutt New Zealand 76 km
Porirua New Zealand 89 km

Dams

Reservoir Dam Name River Year Distance
Taylor Taylor n/a 36 km
Upper Karori Kaiwharawhara 1908 56 km
Lower Karori Kaiwharawhara 1872 57 km
Waihopai Waihopai 1927 63 km
Morton Wainuiomata 1911 73 km

More information

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