GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 4.7 in Tonga on 16 Apr 2018 05:53 UTC
GDACS Event Report - Summary


This earthquake can have a low humanitarian impact based on the Magnitude and the affected population and their vulnerability.

  • Earthquake Magnitude: 4.7M
  • Depth: 352.6 Km
  • Event Date: 16 Apr 2018 05:53 UTC
  • Exposed Population: No people within 100km
  • Inserted at: 16 Apr 2018 07:18 UTC
  • INFORM Coping capacity of the alert score: 1.1 ()


Known identifiers for this event: us2000e0ts (neicid)

Latest media headlines

Articles: 1 | About casualties: 0 | Last hour: 0

5.2 quake to the south of Tonga

Mon, 16 Apr 2018 06:06:00 +0200rnzi (en)

According to the US Geological Survey, this quake was centred at a depth of 10 kilometres, about 250 km south of Tonga's 'Eua island. The quake occurred at around 12:40PM Tonga time. A magnitude-6.1 earthquake of has struck under the sea 170km west of Neiafu in Tonga. A 6.3 magnitude earthquake hit northwest of Tonga early this morning.

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Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: NEIC (8), EMM (1), JRC (68), (2), OCHA (1), INGV (1), WMO (1), USGS (2), INFORM (2),

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