Overall Green Earthquake in Tonga from 21 May 2010 01:05 UTC to 01:05

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

M 5.8 in Tonga from 21 May 2010 01:05 UTC to 01:05

Event summary

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

GDACS ID	EQ 86935
Earthquake Magnitude:	5.8M
Depth:	Km
Lat/Lon:	-19.87 , -174
Event Date:	21 May 2010 01:05 UTC 20 May 2010 13:05 Local
Exposed Population:	about 7000 people within 100km
Inserted at:	21 May 2010 01:20 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
GEOFON	0.5		0.5
	Scaled population (vector)	n.a
	C1 earthquake	n.a
	C2 earthquake	n.a
	Country Vulnerability	n.a
	INFORM_normalised	n.a

Maximum expected impact using different data sources.

Virtual OSOCC

Meteo assessment

Satellite products

Analytical products

Detailed event map. European Union, 2026. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Analytical products

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (41), NEIC (2), OCHA (1), WMO (1), (2), INFORM (2), USGS (2),

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