M 5.5 in Pacific-Antarctic Ridge from 14 Mar 2023 04:24 UTC to 04:24

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: -56.6497 , -141.8297
Event Date: 14 Mar 2023 04:24 UTC
13 Mar 2023 19:24 Local
Exposed Population:
Source: NEIC us7000jju1
Inserted at: 14 Mar 2023 14:48 UTC
INFORM Coping capacity of the alert score
1.1 ()


For more info on GDACS alert score click here.
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.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1495329 0 14 Mar 2023 04:24 5.5M, 10km N/A less than 100 (in MMI>=VII) 10:23 NEIC
1495427 0 14 Mar 2023 04:24 5.5M, 10km N/A less than 100 (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 off shore.

Radius Population
100 km no people
75 km no people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

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.