Earthquake with magnitude of ML 5.9 on date 04-03-2021 and time 18:38:00 (UTC) in region Greece

A magnitude ML 5.9 earthquake occured in region: Greece, on

  • 04-03-2021 18:38:00 (UTC)
  • 04-03-2021 19:38:00 (UTC +01:00) Italian time
  • 04-03-2021 20:38:00 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 39.7700, 22.1000 at 11 km depth.

The earthquake was located by: National Observatory of Athens (NOA).

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
ML 5.9 2021-03-04
39.77 22.1 11 2021-03-04
National Observatory of Athens (NOA) 87731211
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2021-03-04 18:38:00
Latitude 39.7700
Longitude 22.1000
Depth (km) 11 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-NOA
Event type earthquake
Origin ID 87731211


Field Value
Preferred uncertainty description
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 0.0
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec)
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitude information


Field Value
Value 5.9
Num. used stations
Type of magnitude ML
Reference to an origin 87731211
Agency INGV
Autore National Observatory of Athens (NOA)
Time of creation (UTC) 2021-03-04 19:14:27
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download