Overall Green Earthquake alert in Tonga on 07 Sep 2024 22:39 UTC

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 6 in Tonga on 07 Sep 2024 22:39 UTC

Hazard models

Rapid Impact

Shakemap

Tsunami

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:	6.0M
Depth:	10 Km
Lat/Lon:	-21.2926 , -173.7204
Event Date:	07 Sep 2024 22:39 UTC 07 Sep 2024 10:39 Local
Exposed Population:	Few people affected in MMI -
Source:	NEIC us6000nqd8
Inserted at:	07 Sep 2024 23:00 UTC
INFORM Coping capacity of the alert score:	1.1 (Tonga)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000nqd8	Scaled population (raster)	0
	C1 shakemap	0
	C2 shakemap	0
	Country Vulnerability	0
	INFORM_normalised	0

Maximum expected impact using different data sources.

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.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1592268		0	07 Sep 2024 22:39	6M, 10km	4.09	N/A (in MMI>=VII)		00:21	NEIC

The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.

The episode that has the last updated information.

* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in Tonga ,of Tonga (population 29,622) . The alertlevel for this event is GREEN

Intensity	Population
	no people

Shakemaps Timeline

Alert	Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
	1	0	1592268	-173.72/-21.293	6	10	4.087	07 Sep 2024 23:04	00:25	(new episode)
	2	0	1592268	-173.72/-21.293	6	10	4.059	08 Sep 2024 00:43	02:04	(upd of #1)

Affected Provinces

Intensity	Region Province	Country	Population
	Tonga	Tonga	30000 people

Affected populated places. Areas of interest

Name	Country	City class	Population	Distance
Ohonua	Tonga	Village	1200 people	127 km
Niutoua	Tonga	Village	-	138 km
Kolonga	Tonga	Village	-	142 km
Fatumu	Tonga	Village	-	145 km
Mua	Tonga	Village	-	146 km
Fuaamotu	Tonga	Village	-	147 km
Nuku'alofa	Tonga	Capital	24000 people	156 km
Houma	Tonga	Village	-	164 km
Nukunuku	Tonga	Village	-	165 km
Foui	Tonga	Village	-	169 km
Pangai	Tonga	Village	1700 people	176 km

see full list

Critical infrastructure

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

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
Eua Kaufana	EUA	unknown				0	129 km
Fua'amotu International	TBU	38	Civ.	Paved	Yes	8700	148 km
Haapai	HPA	12	Civ.	Unpaved	Yes	3900	180 km

Ports

Intensity	Name	LOCODE	Country	Distance
	Eua Island		Tonga	123 km
	Nuku'alofa	TOTBU	Tonga	155 km

More information

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

Disclaimer
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