Overall Green Earthquake alert in Antarctica on 23 Jan 2021 23:36 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 6.9 in Antarctica on 23 Jan 2021 23:36 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:	6.9M
Depth:	9.58 Km
Lat/Lon:	-61.825 , -55.4937
Event Date:	23 Jan 2021 23:36 UTC 23 Jan 2021 19:36 Local
Exposed Population:	No people within 100km
Source:	NEIC us7000d2rx
Inserted at:	24 Jan 2021 00:48 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		Tsunami		GDACS score
NEIC	0		0		0
us7000d2rx	Scaled population (raster)	0	Max wave alert	0m
	C1 shakemap	-0.59	Max wave realtime	0m
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	1

Maximum expected impact using different data sources.

Episode Timeline

ID	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1354501	23 Jan 2021 23:36	7.3M, 10km	N/A	No people affected (in 100km)	0m (at 00:00)	00:14	NTWC
1354505	23 Jan 2021 23:36	7M, 7.76km	4.86	No people affected (in 100km)	0m (at 00:00)	00:19	NEIC
1354516	23 Jan 2021 23:36	6.9M, 9.58km	5.18	No people affected (in 100km)	0m (at 00:00)	01:11	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 Antarctica , of Antarctica.

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
Antarctica	Antarctica	-

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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