M 6.6 in Vanuatu on 20 Oct 2012 23:00 UTC
EQ parameters

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: 6.6M
Depth: 35.4 Km
Lat/Lon: -13.5724 , 166.594
Event Date: 20 Oct 2012 23:00 UTC
21 Oct 2012 10:00 Local
Exposed Population:
About 2499 people within 100km
Source: NEIC usb000d9v1
Inserted at: 20 Oct 2012 23:20 UTC


For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0 1 0.5
usb000d9v1 Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0m  
  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
120338 0.5 20 Oct 2012 23:00 6.6M, 35.4km N/A 2 thousand (in 100km) 0m (at 00:00) 00:19 NEIC
120339 0 20 Oct 2012 23:00 6.2M, 35.6km N/A 3 thousand (in 100km) 01:06 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 Vipaka, and Gavigamana.

Radius Population
100 km 2500 people
75 km 1500 people
50 km 1300 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Vanuatu Vanuatu 170000 people
Solomon Is. Solomon Islands 370000 people

Affected populated places

Name Region Province Country City class Population Distance
Vipaka Vanuatu Village - 23 km
Gavigamana Vanuatu Village - 49 km

see full list

Critical infrastructure

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


Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Torres TOH unknown 0 27 km

More information

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