M 5.6 Off-shore on 31 Mar 2023 22:36 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: -50.0285 , 113.9109
Event Date: 31 Mar 2023 22:36 UTC
01 Apr 2023 06:36 Local
Exposed Population:
Source: NEIC us6000k18y
Inserted at: 31 Mar 2023 23:04 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
us6000k18y 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
1498333 0 31 Mar 2023 22:36 5.6M, 10km 6.38 No people affected (in 100km) 00:26 NEIC
1498334 0 31 Mar 2023 22:36 5.6M, 10km N/A N/A (in MMI>=VII) 00:28 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 1498334 113.832/-50.051 5.6 10 0 31 Mar 2023 23:06 00:30 (new episode)
2 0 1498334 113.911/-50.028 5.6 10 0 31 Mar 2023 23:12 00:36 (upd of #1)
3 0 1498334 113.911/-50.028 5.6 10 0 01 Apr 2023 00:40 02:04 (upd of #2)
4 0 1498334 113.911/-50.028 5.6 10 0 02 Apr 2023 02:40 1d 04:04 (upd of #3)
5 0 1498334 114.08/-50.003 5.6 10 0 08 Apr 2023 23:50 8d 01:14 (upd of #4)

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.