Overall Green Earthquake alert in Samoa on 23 Jul 2016 20:09 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 5.7 in Samoa on 23 Jul 2016 20:09 UTC

Hazard models

EQ parameters

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:	5.7M
Depth:	10 Km
Lat/Lon:	-15.0935 , -173.6239
Event Date:	23 Jul 2016 20:09 UTC 23 Jul 2016 08:09 Local
Exposed Population:	About 900 people within 100km
Source:	NEIC us20006h4k
Inserted at:	23 Jul 2016 20:33 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0		0
us20006h4k	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.

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
1134631		0	23 Jul 2016 20:09	5.7M, 10km	3.92	Few people (in 100km)		00:23	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 unknowed a zone. 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	1134631	-15.094/-173.624	5.7	10	3.92	17 Oct 2016 11:26	85d 15:17	(new episode)

Affected Provinces

Affected populated places. Areas of interest

Intensity	Name	Region Province	Country	City class	Population	Distance
	Falehau		Tonga	Village	-	95 km
	Hihifo		Tonga	Village	<1000 people	98 km

see full list

Critical infrastructure

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

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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