M 5.6 in Tonga Islands on 05 Dec 2022 16:19 UTC

Hazard models

Rapid Impact
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: 5.6M
Depth: 10 Km
Lat/Lon: -15.223 , -173.1206
Event Date: 05 Dec 2022 16:19 UTC
05 Dec 2022 04:19 Local
Exposed Population: 1 thousand in MMI III
Source: NEIC us6000j71p
Inserted at: 11 Dec 2022 21:36 UTC
INFORM Coping capacity of the alert score: 1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000j71p Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
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
1477079 0 05 Dec 2022 16:19 5.7M, 35km 3.82 N/A (in MMI>=VII) 00:22 NEIC
1477080 0 05 Dec 2022 16:19 5.6M, 35km 3.74 N/A (in MMI>=VII) 00:34 NEIC
1478245 0 05 Dec 2022 16:19 5.6M, 10km 3.52 N/A (in MMI>=VII) 6d 05:17 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 Samoa ,of Samoa (population 319) . The alertlevel for this event is GREEN

Intensity Population
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1477079 -173.051/-15.292 5.7 35 3.818 05 Dec 2022 16:45 00:25 (new episode)
2 0 1477080 -173.051/-15.292 5.7 35 3.818 05 Dec 2022 16:54 00:35 (new episode)
3 0 1477080 -173.042/-15.289 5.6 35 3.747 05 Dec 2022 17:00 00:40 (upd of #2)
4 0 1477080 -173.042/-15.289 5.6 35 3.747 05 Dec 2022 18:28 02:09 (upd of #3)
5 0 1477080 -173.042/-15.289 5.6 35 3.747 06 Dec 2022 16:40 1d 00:21 (upd of #4)
6 0 1477080 -173.037/-15.285 5.6 35 3.743 06 Dec 2022 20:40 1d 04:21 (upd of #5)
7 0 1478245 -173.121/-15.223 5.6 10 3.524 12 Dec 2022 00:51 6d 08:31 (new episode)

Affected Provinces

Intensity Region Province Country Population
Samoa Samoa <1000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Falehau Tonga Village - 103 km
Hihifo Tonga Village <1000 people 107 km

see full list


Critical infrastructure

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

More information

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