M 5.8 in West Of Macquarie Island on 05 Mar 2023 22:21 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: 5.8M
Depth: 10 Km
Lat/Lon: -55.7338 , 147.3432
Event Date: 05 Mar 2023 22:21 UTC
06 Mar 2023 08:21 Local
Exposed Population:
Source: NEIC us7000jhir
Inserted at: 05 Mar 2023 22:42 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
us7000jhir 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
1493723 0 05 Mar 2023 22:21 5.8M, 10km N/A N/A (in MMI>=VII) 00:20 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 1493723 147.343/-55.734 5.8 10 0 05 Mar 2023 22:46 00:25 (new episode)
2 0 1493723 147.343/-55.734 5.8 10 0 06 Mar 2023 00:25 02:04 (upd of #1)
3 0 1493723 147.343/-55.734 5.8 10 0 06 Mar 2023 22:40 1d 00:18 (upd of #2)
4 0 1493723 147.332/-55.721 5.8 10 0 07 Mar 2023 04:40 1d 06:18 (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.