Overall Green Earthquake in Tonga Islands Region on 11 Aug 2026 18:45 UTC

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 4.6 in Tonga Islands Region on 11 Aug 2026 18:45 UTC

Event summary

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

GDACS ID	EQ 1557490
Earthquake Magnitude:	4.6M
Depth:	10 Km
Lat/Lon:	-19.0842 , -172.9513
Event Date:	11 Aug 2026 18:45 UTC 11 Aug 2026 06:45 Local
Exposed Population:
Inserted at:	11 Aug 2026 19:54 UTC
INFORM Coping capacity:	1.1 ()

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Rapid Impact)		GDACS score
NEIC	0		0
us6000tk14	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.

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)

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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 (4), OCHA (1), (2), INFORM (1), USGS (2),

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