M 5.5 in New Caledonia on 05 Dec 2018 21:32 UTC

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: 5.5M
Depth: 10 Km
Lat/Lon: -21.769 , 169.7314
Event Date: 05 Dec 2018 21:32 UTC
06 Dec 2018 08:32 Local
Exposed Population: No people within 100km
Source: NEIC us1000i32q
Inserted at: 05 Dec 2018 21:52 UTC
INFORM Coping capacity of the alert score: 1.1 (New Caledonia)


For more info on GDACS alert score click here.
GDACS score
NEIC 0 0
us1000i32q Scaled population (vector) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
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
1240040 0 05 Dec 2018 21:32 5.5M, 10km 3.07 No people affected 00:20 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 Caledonia ,of New Caledonia (population 178,000) . The alertlevel for this event is GREEN

Intensity Population
no people
15000 people

Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1240040 -21.769/169.731 5.5 10 3.07 05 Dec 2018 21:53 00:20 (new episode)
2 0 1240040 -21.769/169.731 5.5 10 3.07 05 Dec 2018 23:35 02:03 (upd of #1)

Affected Provinces

Intensity Region Province Country Population
New Caledonia New Caledonia 4800 people
Vanuatu Vanuatu <1000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Umetch Vanuatu Village5 - 170 km
Kurine New Caledonia Village5 - 170 km
Anelghowhat Vanuatu Village5 - 171 km
Tawaïnèdre New Caledonia Village5 - 173 km
Hnadid New Caledonia Village5 - 173 km
Isino Vanuatu Village5 - 175 km
Port Patrick Vanuatu Village5 - 181 km
Eni New Caledonia Village5 - 184 km
Miramas New Caledonia Village5 - 184 km
Médu New Caledonia Village5 - 185 km
Ménaku New Caledonia Village5 - 186 km
Wabao New Caledonia Village5 - 187 km
Tadine New Caledonia Village4 7400 people 193 km
Thogone New Caledonia Village5 - 193 km
New Caledonia Village5 - 198 km
Nécé New Caledonia Village5 - 198 km

see full list

Critical infrastructure

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


Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Mare la Roche MEE 43 Civ. Paved No 3200


Intensity Name LOCODE Country
Aneityum Island Vanuatu
Matthew Island New Caledonia
Tadine New Caledonia

More information

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