Overall Green Earthquake alert in South Georgia and the South Sandwich Islands on 08 Dec 2021 00:17 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 5.5 in South Georgia and the South Sandwich Islands on 08 Dec 2021 00:17 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:	5.5M
Depth:	74.07 Km
Lat/Lon:	-59.731 , -26.3721
Event Date:	08 Dec 2021 00:17 UTC 07 Dec 2021 22:17 Local
Exposed Population:	No people affected in 100km
Source:	NEIC us6000ga9r
Inserted at:	08 Dec 2021 00:37 UTC
INFORM Coping capacity of the alert score	1.1 (South Georgia & the South Sandwich Is.)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000ga9r	Scaled population (raster)	0
	C1 shakemap	-0.59
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	1

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1414357		0	08 Dec 2021 00:17	5.5M, 74.07km	3.69	No people affected (in 100km)		00:20	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 South Georgia and the South Sandwich Islands , of South Georgia & the South Sandwich Is..

Radius	Population
100 km	no people
75 km	no people
50 km	no people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
South Georgia & the South Sandwich Is.	South Georgia and the South Sandwich Islands	-

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.

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