M 5.6 in New Zealand on 21 Oct 2021 21:58 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: 5.6M
Depth: 223.09 Km
Lat/Lon: -39.0609 , 174.9544
Event Date: 21 Oct 2021 21:58 UTC
22 Oct 2021 10:58 Local
Exposed Population: 190 thousand in 100km
Source: NEIC us6000fwke
Inserted at: 21 Oct 2021 22:17 UTC
INFORM Coping capacity of the alert score: 2 (New Zealand)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000fwke Scaled population (raster) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 0.63  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1403756 0 21 Oct 2021 21:58 5.6M, 223.09km 3.94 N/A (in MMI>=VII) 00:18 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 ,of Wanganui-Manawatu (population 180,393) . The alertlevel for this event is GREEN

Intensity Population
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1403756 -39.061/174.954 5.6 223.1 3.693 21 Oct 2021 22:18 00:20 (new episode)
2 0 1403756 -39.061/174.954 5.6 223.1 3.937 21 Oct 2021 23:20 01:21 (upd of #1)
3 0 1403756 -39.061/174.954 5.6 223.1 3.937 22 Oct 2021 00:02 02:03 (upd of #2)
4 0 1403756 -39.061/174.954 5.6 223.1 3.936 22 Oct 2021 22:19 1d 00:21 (upd of #3)
5 0 1403756 -39.061/174.941 5.6 227.5 3.937 24 Oct 2021 01:28 2d 03:29 (upd of #4)
6 0 1403756 -39.015/174.96 5.6 226.0 3.939 24 Oct 2021 02:07 2d 04:09 (upd of #5)

Affected Provinces

Intensity Region Province Country Population
Wanganui-Manawatu New Zealand 180000 people
Taranaki New Zealand 1000 people
Hawke's Bay New Zealand 90000 people
Wellington New Zealand <1000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Waverley Taranaki New Zealand Village <1000 people 83 km
Wanganui Manawatu Wanganui New Zealand City 40000 people 97 km
Castlecliff Manawatu Wanganui New Zealand Village - 98 km
Tiriraukawa Manawatu Wanganui New Zealand Village - 98 km
Otairi Manawatu Wanganui New Zealand Village - 99 km
Fordell Manawatu Wanganui New Zealand Village - 102 km
Utiku Manawatu Wanganui New Zealand Village - 107 km
Mangaweka Manawatu Wanganui New Zealand Village - 110 km
Ohingaiti Manawatu Wanganui New Zealand Village - 110 km
Ratana Manawatu Wanganui New Zealand Village <1000 people 111 km
Hunterville Manawatu Wanganui New Zealand Village <1000 people 111 km
Turakina Manawatu Wanganui New Zealand Village - 112 km
Rata Manawatu Wanganui New Zealand Village - 114 km
Marton Manawatu Wanganui New Zealand Village 4600 people 118 km
Rewa Manawatu Wanganui New Zealand Village - 118 km
Rangiwahia Manawatu Wanganui New Zealand Village - 124 km
Apiti Manawatu Wanganui New Zealand Village - 128 km
Halcombe Manawatu Wanganui New Zealand Village <1000 people 129 km
Bulls Manawatu Wanganui New Zealand Village 1800 people 129 km
Kimbolton Manawatu Wanganui New Zealand Village - 131 km
Sanson Manawatu Wanganui New Zealand Village <1000 people 135 km
Wakarara Hawke's Bay New Zealand Village - 138 km
Feilding Manawatu Wanganui New Zealand Village 14000 people 139 km
Tangimoana Manawatu Wanganui New Zealand Village - 140 km
Awahuri Manawatu Wanganui New Zealand Village - 143 km
Pohangina Manawatu Wanganui New Zealand Village - 143 km
Rongotea Manawatu Wanganui New Zealand Village <1000 people 143 km
Bunnythorpe Manawatu Wanganui New Zealand Village - 148 km
Ashley Clinton Hawke's Bay New Zealand Village - 150 km
Ashhurst Manawatu Wanganui New Zealand Village - 153 km
Palmerston North Manawatu Wanganui New Zealand City 75000 people 154 km
Norsewood Manawatu Wanganui New Zealand Village - 156 km
Matamau Manawatu Wanganui New Zealand Village - 159 km
Foxton Manawatu Wanganui New Zealand Village 4800 people 159 km
Dannevirke Manawatu Wanganui New Zealand Village 5400 people 160 km
Takapau Hawke's Bay New Zealand Village <1000 people 160 km
Linton Manawatu Wanganui New Zealand Village - 161 km
Makotuku Manawatu Wanganui New Zealand Village - 161 km
Woodville Manawatu Wanganui New Zealand Village 1500 people 163 km
Tokomaru Manawatu Wanganui New Zealand Village <1000 people 164 km
Omahu Hawke's Bay New Zealand Village - 166 km
Waitarere Manawatu Wanganui New Zealand Village - 167 km
Shannon Manawatu Wanganui New Zealand Village 1400 people 170 km
Pahiatua Manawatu Wanganui New Zealand Village 2600 people 174 km
Hastings Hawke's Bay New Zealand City 61000 people 175 km
Clive Hawke's Bay New Zealand Village - 178 km
Havelock North Hawke's Bay New Zealand City - 179 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Wanganui WAG 8 Civ. Paved Yes 4500 100 km
Ohakea OHA 50 Mil. Paved Yes 8000 133 km
Palmerston North PMR 45 Civ. Paved Yes 6200 151 km
Foxpine 11 0 157 km
Dannevirke 194 Civ. Unpaved No 3900 162 km
Hastings 22 Civ. Paved No 3500 169 km
Napier NPE 2 Civ. Paved Yes 4200 171 km

Ports

Intensity Name LOCODE Country Distance
Wanganui NZWAG New Zealand 99 km

More information

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