M 5.6 in Tonga on 03 Jun 2018 00:48 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: 5.6M
Depth: 10 Km
Lat/Lon: -19.4045 , -173.6821
Event Date: 03 Jun 2018 00:48 UTC
Exposed Population: About 20000 people within 100km
Source: NEIC us1000ehmb
Inserted at: 03 Jun 2018 01:10 UTC
INFORM Coping capacity: 4.6 (TON)

Gdacs Score

For more info on GDACS alert score click here.

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.

Exposed population

The earthquake happened in Tonga ,of Tonga (population 98,000) . The alertlevel for this event is GREEN

Intensity Population
no people

Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0.01 1212911 -19.404/-173.682 5.6 10 3.55 03 Jun 2018 01:15 00:27 (new episode)
2 0.01 1212911 -19.404/-173.682 5.6 10 3.85 03 Jun 2018 02:56 02:08 (upd of #1)

Affected Provinces

Intensity Region Province Country Population
Tonga Tonga 8600 people
Tonga Tonga 41000 people

Affected populated places

Intensity Name Region Province Country City class Population Distance
Neiafu Tonga Village5 4200 people 89 km
Pangai Tonga Village5 1700 people 84 km
Niutoua Tonga Village5 - 240 km
Kolonga Tonga Village5 - 241 km
Mua Tonga Village5 - 248 km
Fatumu Tonga Village5 - 250 km
Nuku'alofa Tonga Capital 24000 people 250 km
Ohonua Tonga Village5 1200 people 252 km
Pea Tonga Village5 - 254 km
Nukunuku Tonga Village5 - 255 km
Fuaamotu Tonga Village5 - 256 km
Foui Tonga Village5 - 256 km
Houma Tonga Village5 - 258 km

see full list

Critical infrastructure

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


Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Haapai HPA 12 Civ. Unpaved Yes 3900
Vavau International VAV 72 Civ. Unpaved Yes 5500
Fua'amotu International TBU 38 Civ. Paved Yes 8700
Eua Kaufana EUA unknown 0


Intensity Name LOCODE Country
Pangai TOPAN Tonga
Neiafu TONEI Tonga
Nuku'alofa TOTBU Tonga
Eua Island Tonga

More information

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