Earthquake with magnitude of ML-VAX 3.2 on date 21-05-1998 and time 16:44:29 (UTC) in region Costa Greca Ionica (GRECIA)

A magnitude ML-VAX 3.2 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 21-05-1998 16:44:29 (UTC)
  • 21-05-1998 18:44:29 (UTC +02:00) Italian time
  • 21-05-1998 19:44:29 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.6940, 20.6730 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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-VAX 3.2 1998-05-21
37.694 20.673 10 2013-07-15
Bollettino Sismico Italiano INGV 339229
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 1998-05-21 16:44:29 ± 0.929
Latitude 37.6940 ± 0.0629
Longitude 20.6730 ± 0.0667
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 339229


Field Value
Preferred uncertainty description horizontal uncertainty
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) 9126.0
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 274
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.02202
Epicentral distance of station farthest from the epicenter (degree) 0.04541
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information


Field Value
Value 3.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 339229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SGO.Z. 1998-05-21T16:45:44.89 10.0 undecidable manual PN 306 0.0454 0.5 0.3
--.MU9.Z. 1998-05-21T16:45:44.90 10.0 undecidable manual PN 308 0.0454 -0.3 0.7
--.MO9.Z. 1998-05-21T16:45:29.22 10.0 undecidable manual PN 275 0.0355 0.04 1.5
--.TDS.Z. 1998-05-21T16:45:28.49 10.0 undecidable manual PN 301 0.0351 -0.29 0.9
--.TIR.Z. 1998-05-21T16:45:26.00 10.0 undecidable manual PN 350 0.0333 0.08 1.5
--.KBN.Z. 1998-05-21T16:45:15.00 10.0 undecidable manual PN 1 0.0263 -0.28 1
--.LSK.Z. 1998-05-21T16:45:09.00 10.0 undecidable manual PN 358 0.0220 0.23 1.1
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