M 5.5 in Antarctica on 24 Jan 2021 12:14 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: -61.778 , -55.3732
Event Date: 24 Jan 2021 12:14 UTC
24 Jan 2021 08:14 Local
Exposed Population: No people within 100km
Source: NEIC us7000d2wh
Inserted at: 24 Jan 2021 12:51 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us7000d2wh Scaled population (vector) 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

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1354608 0 24 Jan 2021 12:14 5.6M, 10km 3.79 No people affected (in 100km) 00:21 NEIC
1354611 0 24 Jan 2021 12:14 5.5M, 10km 3.71 N/A (in MMI>=VII) 00:36 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
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1354608 -61.769/-55.333 5.6 10.0 3.793 24 Jan 2021 12:39 00:24 (new episode)
2 0 1354611 -61.778/-55.373 5.5 10.0 3.706 24 Jan 2021 13:25 01:10 (new episode)
3 0 1354611 -61.778/-55.373 5.5 10.0 3.706 24 Jan 2021 14:19 02:04 (upd of #2)
4 0 1354611 -61.778/-55.373 5.5 10.0 3.706 25 Jan 2021 12:19 1d 00:05 (upd of #3)
5 0 1354611 -61.778/-55.373 5.5 10.0 3.706 25 Jan 2021 14:19 1d 02:05 (upd of #4)

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.

More information

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