M 6.8 in South Georgia and the South Sandwich Islands from 10 May 2017 23:23 UTC to 23:23

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: 71 Km
Event Date: 10 May 2017 23:23 UTC
10 May 2017 21:23 Local
Exposed Population: No people within 100km
Source: NTWC     at00oprfnh
Inserted at: 10 May 2017 23:36 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
NTWC     n.a 1 1
at00oprfnh 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.
Click on image to zoom it.

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.

Tsunami affected locations

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

See full locations list (RSS)


Initial conditions

Title: "South Sandwich Islands region"

Fault parameters

  • Latitude: -56.542
  • Longitude: -25.853
  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 317 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 71 km

Calculation parameters

  • Calculation space (lon/lat): -28.853, -59.542, -22.853, -53.542
  • Instead of Step -> use Cell size:.31 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.