M 5.6 in Southern Mid-Atlantic Ridge on 03 Mar 2023 19:00 UTC

Hazard models

Rapid Impact
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: 5.6M
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 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 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.

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
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 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 1493329 -13.448/-30.862 5.6 10 0 03 Mar 2023 19:25 00:25 (new episode)
2 0 1493329 -13.448/-30.862 5.6 10 0 03 Mar 2023 21:03 02:02 (upd of #1)
3 0 1493500 -13.439/-30.846 5.5 10 0 04 Mar 2023 15:40 20:40 (new episode)
4 0 1493500 -13.439/-30.846 5.5 10 0 04 Mar 2023 20:40 1d 01:40 (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.