M 5.7 in Tonga on 28 Jun 2024 13:00 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: 5.7M
Depth: 10 Km
Lat/Lon: -20.6842 , -175.6828
Event Date: 28 Jun 2024 13:00 UTC
28 Jun 2024 01:00 Local
Exposed Population: 80 thousand in MMI&>=IV
Source: NEIC us6000n8vk
Inserted at: 28 Jun 2024 13:33 UTC
INFORM Coping capacity of the alert score
1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 0 0
us6000n8vk Scaled population (vector) 0  
  C1 rapid impact 0  
  C2 rapid impact 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1579201 0 28 Jun 2024 13:00 5.8M, 10km 5.65 N/A (in MMI>=VII) 00:17 NEIC
1579203 0 28 Jun 2024 13:00 5.7M, 10km 4.86 80 thousand (in 100km) 00:32 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 81000 people
75 km 68000 people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Affected populated places

Name Region Province Country City class Population Distance
Foui Tonga Village - 60 km
Nukunuku Tonga Village - 64 km
Houma Tonga Village - 67 km
Nuku'alofa Tonga Capital 24000 people 70 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Fua'amotu International TBU 38 Civ. Paved Yes 8700 84 km

Ports

Name LOCODE Country Distance
Nuku'alofa TOTBU Tonga 70 km

More information

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