M 5.5 in Pacific-Antarctic Ridge on 14 Mar 2023 04:24 UTC
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: -56.6034 , -141.75
Event Date: 14 Mar 2023 04:24 UTC
13 Mar 2023 19:24 Local
Exposed Population:
Source: NEIC us7000jju1
Inserted at: 15 Mar 2023 02:25 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
us7000jju1 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
1495329 0 14 Mar 2023 04:24 5.5M, 10km N/A N/A (in MMI>=VII) 10:23 NEIC
1495427 0 14 Mar 2023 04:24 5.5M, 10km N/A N/A (in MMI>=VII) 22:00 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 1495329 -141.83/-56.65 5.5 10 0 14 Mar 2023 14:52 10:27 (new episode)
2 0 1495427 -141.75/-56.603 5.5 10 0 15 Mar 2023 02:40 22:15 (new episode)
3 0 1495427 -141.75/-56.603 5.5 10 0 15 Mar 2023 04:40 1d 00:15 (upd of #2)

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.