M 6.4 in Southeast Of Loyalty Islands on 14 Aug 2022 21:04 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: 6.4M
Depth: 78 Km
Lat/Lon: -22.0854 , 170.961
Event Date: 14 Aug 2022 21:04 UTC
15 Aug 2022 08:04 Local
Exposed Population: Less then 100 people in MMI VI
Few people affected in MMI&>=V
Source: NEIC us6000iav7
Inserted at: 16 Aug 2022 06:32 UTC
INFORM Coping capacity of the alert score: 1.1 ()


For more info on GDACS alert score click here.
(Rapid Impact)
Tsunami GDACS score
NEIC 0 0 0
us6000iav7 Scaled population (raster) 0 Max wave scenario 0m  
  C1 rapid impact -0.59 Max wave realtime 0m  
  C2 rapid impact 0.53      
  Country Vulnerability 0      
  INFORM_normalised 1      
Maximum expected impact using different data sources.

The green area correspond to areas affected by strong shaking (MMI VI or higher) according to the simulation.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1456901 0 14 Aug 2022 21:04 6.2M, 105km 4.9 less than 100 (in MMI>=VII) 0m (at 00:00) 1d 09:22 GEOFON
1456905 0 14 Aug 2022 21:04 6.2M, 82.536km 5.08 less than 100 (in MMI>=VII) 0m (at 00:00) 1d 09:23 NEIC
1456937 0 14 Aug 2022 21:04 6.1M, 80.644km 4.88 less than 100 (in MMI>=VII) N/A 1d 09:25 NEIC
1457070 0 14 Aug 2022 21:04 6.4M, 78km 5.59 less than 100 (in MMI>=VII) 0m (at 00:00) 1d 09:27 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.

Rapid Impact

The results presented below are calculated with the ShakeMap open source software (USGS) using only earthquake hypocenter information to provide a rapid estimation of the ground motion and shaking intensity without taking into account any instrumental observations or earthquake source scaling laws.

Exposed population

The earthquake happened in unknowed a zone. The alertlevel for this event is GREEN

Intensity Population
<1000 people
<1000 people

Affected Provinces

Critical infrastructure

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


Intensity Name LOCODE Country Distance
Matthew Island New Caledonia 49 km

More information

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