M 4.5 in Greece on 21 Mar 2023 00:20 UTC
Rapid Impact

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: 4.5M
Depth: 10 Km
Lat/Lon: 38.9974 , 21.131
Event Date: 21 Mar 2023 00:20 UTC
21 Mar 2023 02:20 Local
Exposed Population:
6 thousand in MMI V
Source: NEIC us7000jljx
Inserted at: 21 Mar 2023 00:53 UTC
INFORM Coping capacity of the alert score: 2.5 (Greece)


For more info on GDACS alert score click here.
(Rapid Impact)
GDACS score
NEIC 0 0
us7000jljx Scaled population (raster) 0  
  C1 rapid impact 0  
  C2 rapid impact 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

The green area correspond to areas affected by strong shaking (MMI VI or higher) according to the simulation.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1496569 0 21 Mar 2023 00:20 4.5M, 10km 5.39 N/A (in MMI>=VII) N/A 00:33 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.

Rapid Impact

The results presented below are calculated with the ShakeMap open source software (USGS) using only earthquake hypocenter information to provide a rapid estimation of the ground motion and shaking intensity without taking into account any instrumental observations or earthquake source scaling laws.

Exposed population

The earthquake happened in Greece ,of Central Greece and Evvoia (population -99,999) . The alertlevel for this event is GREEN

Intensity Population
6000 people

Affected Provinces

Intensity Region Province Country Population
Central Greece and Evvoia Greece 4700 people
Ipiros Greece 1800 people
Central Greece and Evvoia Greece <1000 people
Ipiros Greece 5600 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Menidi Greece Village - 4 km
Krikellos Aitoloakarnania Greece Village - 6 km
Sparta Greece Village - 12 km
Komobotion Arta Greece City - 13 km
Neokh├│ri Arta Greece Village - 13 km

see full list

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.