M 5.5 in South Georgia and the South Sandwich Islands from 11 May 2017 15:57 UTC to 15:57

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: 35 Km
Lat/Lon: -56.6107 , -25.9148
Event Date: 11 May 2017 15:57 UTC
11 May 2017 13:57 Local
Exposed Population: No people within 100km
Source: NEIC us10008rhm
Inserted at: 11 May 2017 16:18 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 GDACS score
NEIC 0 0
us10008rhm Scaled population (vector) 0  
  C1 earthquake 1  
  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
1167445 0 11 May 2017 15:57 5.5M, 35km 3.23 N/A (in MMI>=VII) 00:20 NEIC
1167455 0 11 May 2017 15:57 5.5M, 10km 3.08 N/A (in MMI>=VII) 00:56 NEIC
1167584 0 11 May 2017 15:57 5.3M, 6.33km 3.08 No people affected (in 100km) 23:23 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


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1167445 -56.611/-25.915 5.5 35 3.2 11 May 2017 16:18 00:20 (new episode)
2 0 1167445 -56.591/-25.88 5.5 10 3.23 11 May 2017 16:53 00:55 (upd of #1)
3 0 1167455 -56.591/-25.88 5.5 10 3.23 11 May 2017 17:58 02:01 (new episode)
4 0 1167455 -56.612/-25.898 5.3 6.33 3.08 12 May 2017 15:19 23:21 (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.