M 5.5 Off-shore on 24 May 2023 10:33 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: 5.5M
Depth: 10 Km
Lat/Lon: -56.8559 , -140.8423
Event Date: 24 May 2023 10:33 UTC
24 May 2023 01:33 Local
Exposed Population:
Source: NEIC us7000k3fh
Inserted at: 24 May 2023 10:52 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
us7000k3fh 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
1507393 0 24 May 2023 10:33 5.5M, 10km N/A N/A (in MMI>=VII) 00:19 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 1507393 -140.842/-56.856 5.5 10 0 24 May 2023 10:55 00:22 (new episode)
2 0 1507393 -140.842/-56.856 5.5 10 0 24 May 2023 12:37 02:04 (upd of #1)
3 0 1507393 -140.846/-56.87 5.5 10 0 24 May 2023 16:40 06:07 (upd of #2)
4 0 1507393 -140.846/-56.87 5.5 10 0 25 May 2023 10:40 1d 00:07 (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.