Jun 10, 2017

Green earthquake alert (4.6M,depth:64.26km) in Tonga at 6/10/2017 2:17:22 AM

Green Earthquake in Tonga


Population Density near epicenter (people/km2). Image area: 6x4 decimal degrees (approx. 650x450km2).


This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

  • Earthquake Magnitude 4.6M, Depth:64.26km
  • 10 Jun 2017 02:17:22 UTC
  • About 13611 people within 100km

Whether international humanitarian aid is needed must be decided by an expert.

See the GDACS website for live news coverage (including OCHA Situation Reports), the full earthquake report

For information on emergency response, please consult the GDACS Virtual OSOCC.


Earthquake Event


  • Magnitude: 4.6 M
  • Depth: 64.26 km (deep)
  • Source: NEIC NEIC
  • Location (latitude/longitude): -18.591, -173.1179
  • Time (UTC): 10 Jun 2017 02:17:22
  • Time (ECT): 10 Jun 2017 04:17:22

Earthquake Impact Details

The earthquake happened off shore, near Tonga, of Tonga (population 98,000). The distance to the nearest coast is 84km.

The following vulnerable infrastructure is nearby and may be affected.

For logistics, the following access points are nearby. The nearest airports are Vavau International (runway 5500ft, 89km). The nearest ports are Neiafu (91km).

The maximum altitude nearby is NaNm.

The population near the earthquake is shown in the table below.

Radius Population Density (people/km2)
75 km no people 0
50 km no people 0
20 km no people 0
10 km no people 0



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