M 4.9 in Vanuatu on 31 Oct 2021 12:32 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: 4.9M
Depth: 126.2 Km
Lat/Lon: -21.8651 , 170.8184
Event Date: 31 Oct 2021 12:32 UTC
31 Oct 2021 23:32 Local
Exposed Population:
Few people affected in 100km
Source: NEIC us7000fq9s
Inserted at: 31 Oct 2021 12:50 UTC
INFORM Coping capacity of the alert score
1.1 (Vanuatu)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000fq9s Scaled population (vector) -0.15  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1405959 0 31 Oct 2021 12:32 4.9M, 126.2km N/A Few people (in 100km) 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 Vanuatu , of Vanuatu (population 165,000) .

Radius Population
100 km <1000 people
75 km no 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
Vanuatu Vanuatu 170000 people
New Caledonia New Caledonia 180000 people

Critical infrastructure

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

Ports

Name LOCODE Country Distance
Matthew Island New Caledonia 77 km

More information

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