M 5.6 in Southern Mid-Atlantic Ridge on 03 Mar 2023 19:00 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: 5.6M
Depth: 10 Km
Lat/Lon: -30.8617 , -13.4478
Event Date: 03 Mar 2023 19:00 UTC
03 Mar 2023 18:00 Local
Exposed Population:
Source: NEIC us7000jh5j
Inserted at: 03 Mar 2023 19:22 UTC
INFORM Coping capacity of the alert score
1.1 ()


For more info on GDACS alert score click here.
GDACS score
NEIC 0 0
us7000jh5j Scaled population (vector) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1493329 0 03 Mar 2023 19:00 5.6M, 10km N/A N/A (in MMI>=VII) 00:22 NEIC
1493500 0 03 Mar 2023 19:00 5.5M, 10km N/A N/A (in MMI>=VII) 20:17 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 off shore.

Radius Population
100 km no people
75 km no people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

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.