M 6.8 in South Georgia and the South Sandwich Islands on 10 May 2017 23:23 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: 6.8M
Depth: 10 Km
Lat/Lon: -56.4162 , -25.7382
Event Date: 10 May 2017 23:23 UTC
10 May 2017 21:23 Local
Exposed Population: No people within 100km
Source: NEIC us10008rb6
Inserted at: 10 May 2017 23:42 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 Tsunami GDACS score
NEIC 0 1 1
us10008rb6 Scaled population (vector) 0 Max wave scenario 0m  
  C1 earthquake 1 Max wave realtime 0m  
  C2 earthquake 0      
  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
1167336 1 10 May 2017 23:23 6.8M, 41.1km N/A No people affected (in 100km) 0m (at 00:00) 00:09 PTWC
1167337 1 10 May 2017 23:23 6.8M, 71km N/A No people affected (in 100km) 0m (at 00:00) 00:12 NTWC    
1167341 1 10 May 2017 23:23 6.8M, 10km 3.92 N/A (in MMI>=VII) 0m (at 00:00) 00:18 NEIC
1167352 1 10 May 2017 23:23 6.5M, 10km 3.92 No people affected (in 100km) 0m (at 00:00) 02:06 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
no people
no people
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1167341 -56.416/-25.738 6.8 10 4.02 10 May 2017 23:43 00:19 (new episode)
2 0 1167341 -56.416/-25.738 6.8 10 4.1 11 May 2017 01:25 02:01 (upd of #1)
3 0 1167341 -56.408/-25.764 6.5 10 3.92 11 May 2017 01:28 02:04 (upd of #2)

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.