Overall Green Earthquake alert in Antarctica on 10 Apr 2021 07:14 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 Antarctica on 10 Apr 2021 07:14 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:	10 Km
Lat/Lon:	-62.4009 , -58.3064
Event Date:	10 Apr 2021 07:14 UTC 10 Apr 2021 04:14 Local
Exposed Population:	No people within 100km
Source:	NEIC us6000e0j2
Inserted at:	10 Apr 2021 07:36 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000e0j2	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.

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
1369435		0	10 Apr 2021 07:14	5.5M, 10km	4.37	No people affected (in 100km)		00:22	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. The alertlevel for this event is GREEN

Intensity	Population

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1369435	-62.401/-58.306	5.5	10.0	4.104	10 Apr 2021 07:40	00:26	(new episode)
2	1369435	-62.401/-58.306	5.5	10.0	4.196	10 Apr 2021 08:38	01:24	(upd of #1)
3	1369435	-62.401/-58.306	5.5	10.0	4.196	10 Apr 2021 09:19	02:05	(upd of #2)
4	1369435	-62.401/-58.306	5.5	10.0	4.372	11 Apr 2021 07:17	1d 00:03	(upd of #3)

Affected Provinces

Intensity	Region Province	Country	Population
	Antarctica	Antarctica	no people

Critical infrastructure

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

Airports

Intensity	Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
	Teniente Rodolfo Marsh Martin	TNM	45				0	42 km

Ports

Intensity	Name	LOCODE	Country	Distance
	Admiralty Bay		Antarctica	36 km

More information

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

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