Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of M 3.9 on date 24-05-1988 and time 01:39:46 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude M 3.9 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 23-05-1988 23:39:46 (UTC)
  • 24-05-1988 01:39:46 (UTC +02:00) Italian time
  • 24-05-1988 02:39:46 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.3310, 20.5370 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.

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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
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		M 3.9 1988-05-23
23:39:46		 38.331 20.537 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 70119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-05-23 23:39:46 ± 0.275
Latitude 38.3310 ± 0.0210
Longitude 20.5370 ± 0.0336
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 70119

Uncertainty

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) 3745.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.09034
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitude information

M:3.9

Field Value
Value 3.9
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 70119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:54:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FVI.Z. 1988-05-23T23:43:56.50 10.0 undecidable manual SN 328 10.0233 1.16 0.2
--.FVI.Z. 1988-05-23T23:42:09.00 10.0 undecidable manual PN 328 10.0233 -0.99 0.6
--.ARV.Z. 1988-05-23T23:41:37.50 10.0 undecidable manual PN 314 7.7145 -0.55 0.9
--.SDI.Z. 1988-05-23T23:41:17.50 10.0 undecidable manual PN 305 6.1494 0.87 0.9
--.DUI.Z. 1988-05-23T23:41:11.60 10.0 undecidable manual PN 307 5.7165 0.95 0.8
--.MS1.Z. 1988-05-23T23:40:59.00 10.0 undecidable manual PN 315 4.8618 -0.01 1.4
--.SGO.Z. 1988-05-23T23:40:56.50 10.0 undecidable manual PN 300 4.5954 1.1 0.8
--.MGR.Z. 1988-05-23T23:40:50.50 10.0 undecidable manual PN 296 4.2513 -0.08 1.5
--.CDM.Z. 1988-05-23T23:40:49.50 10.0 undecidable manual PN 311 4.2624 -1.32 0.6
--.TTG.Z. 1988-05-23T23:40:48.00 10.0 undecidable manual PN 347 4.2069 -1.91 0.3
--.MMN.Z. 1988-05-23T23:40:46.40 10.0 undecidable manual PN 295 3.8406 1.36 0.7
--.BAI.Z. 1988-05-23T23:40:46.00 10.0 undecidable manual PN 315 3.9405 -0.35 1.5
--.CSI.Z. 1988-05-23T23:40:43.20 10.0 undecidable manual PN 295 3.5964 1.67 0.4
--.ULC.Z. 1988-05-23T23:40:42.70 10.0 undecidable manual PN 345 3.7518 -1.05 1
--.ORI.Z. 1988-05-23T23:40:42.00 10.0 undecidable manual PN 299 3.6075 0.37 1.5
--.CZI.Z. 1988-05-23T23:40:41.90 10.0 undecidable manual PN 285 3.5409 1.13 0.9
--.TDS.Z. 1988-05-23T23:40:40.50 10.0 undecidable manual PN 293 3.5187 0.03 1.6
--.BRT.Z. 1988-05-23T23:40:40.50 10.0 undecidable manual PN 315 3.6408 -1.63 0.4
--.PE1.Z. 1988-05-23T23:40:39.00 10.0 undecidable manual PN 316 3.441 -0.41 1.5
--.ROI.Z. 1988-05-23T23:40:39.70 10.0 undecidable manual PN 293 3.3189 1.93 0.3
--.SOI.Z. 1988-05-23T23:40:39.50 10.0 undecidable manual PN 267 3.5187 -1.08 0.8
--.PHP.Z. 1988-05-23T23:40:37.50 10.0 undecidable manual PN 358 3.3522 -0.69 1.3
--.GRI.Z. 1988-05-23T23:40:35.50 10.0 undecidable manual PN 279 3.2412 -1.3 0.7
--.SRN.Z. 1988-05-23T23:40:34.80 10.0 undecidable manual SN 345 1.5984 0.13 0.6
--.TIR.Z. 1988-05-23T23:40:33.20 10.0 undecidable manual PN 350 3.0525 -0.9 1.1
--.OHR.Z. 1988-05-23T23:40:30.90 10.0 positive manual PN 4 2.775 0.54 2.7
--.ATH.Z. 1988-05-23T23:40:28.20 10.0 undecidable manual PN 97 2.5197 1.43 0.6
--.KBN.Z. 1988-05-23T23:40:24.10 10.0 undecidable manual PN 4 2.2866 0.42 1.4
--.KZN.Z. 1988-05-23T23:40:22.80 10.0 undecidable manual PN 25 2.1867 0.58 1.3
--.SRN.Z. 1988-05-23T23:40:13.90 10.0 undecidable manual PN 345 1.5984 -0.23 1.6
--.VLS.Z. 1988-05-23T23:39:52.70 10.0 undecidable manual SG 165 0.1554 -0.41 0.5
--.VLS.Z. 1988-05-23T23:39:49.50 10.0 undecidable manual PG 165 0.1554 -0.63 1.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download