M 5.5 in South Georgia and the South Sandwich Islands on 10 Sep 2021 17:07 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: -60.5762 , -26.5402
Event Date: 10 Sep 2021 17:07 UTC
10 Sep 2021 15:07 Local
Exposed Population: No people affected in 100km
Source: NEIC us7000fa2u
Inserted at: 10 Sep 2021 17:28 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
us7000fa2u 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

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1396283 0 10 Sep 2021 17:07 5.5M, 10km 2.88 No people affected (in 100km) 00:21 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


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1396283 -60.576/-26.54 5.5 10.0 2.882 10 Sep 2021 17:32 00:25 (new episode)
2 0 1396283 -60.576/-26.54 5.5 10.0 2.882 10 Sep 2021 19:41 02:34 (upd of #1)
3 0 1396283 -60.576/-26.54 5.5 10.0 2.882 11 Sep 2021 17:14 1d 00:07 (upd of #2)
4 0 1396283 -60.586/-26.576 5.5 10.0 2.877 11 Sep 2021 19:45 1d 02:37 (upd of #3)

Affected Provinces



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.