M 4.9 in Vanuatu on 21 May 2017 07:10 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This is a preliminary assessment. The final GDACS Alert Level has been/will be published using more detailed information.

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: 83.23 Km
Lat/Lon: -20.3891 , 169.3974
Event Date: 21 May 2017 07:10 UTC
21 May 2017 18:10 Local
Exposed Population:
About 22000 people within 100km
Source: NEIC us10008tzy
Inserted at: 21 May 2017 07:36 UTC
INFORM Coping capacity of the alert score
6.1 (Vanuatu)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC n.a n.a
us10008tzy Scaled population (vector) 0  
  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
1168553 n.a 21 May 2017 07:10 4.9M, 83.23km N/A 20 thousand (in 100km) 00:25 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) . The nearest places are Isino, Anelghowhat, Umetch, and Port Patrick.

Radius Population
100 km 23000 people
75 km <1000 people
50 km <1000 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

Affected populated places

Name Region Province Country City class Population Distance
Isino Vanuatu Village - 43 km
Anelghowhat Vanuatu Village - 44 km
Umetch Vanuatu Village - 51 km
Port Patrick Vanuatu Village - 52 km

see full list

Critical infrastructure

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

Ports

Name LOCODE Country Distance
Aneityum Island Vanuatu 43 km

More information

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