M 6.9 in South Georgia and the South Sandwich Islands on 29 Jun 2014 07:52 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: 6.9M
Depth: 16.46 Km
Event Date: 29 Jun 2014 07:52 UTC
29 Jun 2014 05:52 Local
Exposed Population: No people within 100km
Source: NEIC
Inserted at: 29 Jun 2014 08:58 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0 0 0.5
Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0m  
  C2 earthquake n.a      
  Country Vulnerability n.a      
  INFORM_normalised n.a      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1054202 0.5 29 Jun 2014 07:52 7.2M, 24.6km N/A No people affected (in 100km) 0m (at 00:00) 00:10 NEIC
1054204 0.5 29 Jun 2014 07:52 6.9M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:12 GEOFON
1054206 0.5 29 Jun 2014 07:52 7.2M, 35km N/A No people affected (in 100km) 0m (at 00:00) 00:14 NEIC
1054210 0.5 29 Jun 2014 07:52 7.1M, 14.7km N/A No people affected (in 100km) 0m (at 00:00) 00:21 NEIC
1054218 0.5 29 Jun 2014 07:52 6.9M, 16.46km N/A No people affected (in 100km) 0m (at 00:00) 01:05 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.

Tsunami affected locations

Alert Date (UTC) Name Country Wave height (m)

See full locations list (RSS)


Initial conditions

Title: "M6.97 South Sandwich Islands Region"

Fault parameters

  • Latitude: -55.357
  • Longitude: -28.398
  • Length: 48 km
  • Width: 13 km
  • Magnitude: 7 M

Okada parameters:

  • Slip: 1.3 m
  • Strike: 290 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 18 km

Calculation parameters

  • Calculation space (lon/lat): -32.898, -59.857, -23.898, -50.857
  • Instead of Step -> use Cell size:.46 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

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