M 6.5 in East Of South Sandwich Islands on 29 Sep 2022 03:03 UTC

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: 6.5M
Depth: 11 Km
Lat/Lon: -60.8461 , -20.027
Event Date: 29 Sep 2022 03:03 UTC
29 Sep 2022 02:03 Local
Exposed Population:
Source: NEIC us6000ip57
Inserted at: 29 Sep 2022 20:55 UTC
INFORM Coping capacity of the alert score: 1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)
Tsunami GDACS score
NEIC 0 0 0
us6000ip57 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.

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
1464749 0 29 Sep 2022 03:03 6.5M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:10 GEOFON
1464750 0 29 Sep 2022 03:03 6.7M, 33km 6.18 No people affected (in 100km) 0m (at 00:00) 00:15 PTWC
1464751 0 29 Sep 2022 03:03 6.7M, 33km 6.18 No people affected (in 100km) 0m (at 00:00) 00:18 NTWC
1464753 0 29 Sep 2022 03:03 6.8M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:22 NEIC
1464755 0 29 Sep 2022 03:03 6.5M, 11km N/A N/A (in MMI>=VII) 0m (at 00:00) 00:36 NEIC
1464921 0 29 Sep 2022 03:03 6.5M, 11km N/A No people affected (in 100km) 0m (at 00:00) 17:51 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 1464755 -60.804/-20.017 6.8 10.0 None 29 Sep 2022 03:27 00:24 (new episode)
2 0 1464755 -60.82/-19.969 6.5 11.0 None 29 Sep 2022 03:41 00:37 (upd of #1)
3 0 1464755 -60.82/-19.969 6.5 11.0 None 29 Sep 2022 05:07 02:04 (upd of #2)
4 0 1464921 -60.846/-20.027 6.5 11.0 None 29 Sep 2022 21:40 18:36 (new episode)
5 0 1464921 -60.846/-20.027 6.5 11.0 None 30 Sep 2022 03:40 1d 00:37 (upd of #4)
6 0 1464921 -60.836/-20.027 6.5 11.0 None 06 Oct 2022 05:42 7d 02:39 (upd of #5)

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.