M 5.7 in Tonga Islands from 05 Dec 2022 16:19 UTC to 16:19

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: 5.7M
Depth: 35 Km
Lat/Lon: -15.292 , -173.0513
Event Date: 05 Dec 2022 16:19 UTC
05 Dec 2022 04:19 Local
Exposed Population: 1 thousand in MMI IV
Source: NEIC us6000j71p
Inserted at: 05 Dec 2022 16:42 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 (vector) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

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 off shore.

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

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.