Earthquake with magnitude of M 4.2 on date 05-04-1988 and time 17:50:19 (UTC) in region Costa Greca Ionica (GRECIA)

A magnitude M 4.2 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 05-04-1988 17:50:19 (UTC)
  • 05-04-1988 19:50:19 (UTC +02:00) Italian time
  • 05-04-1988 20:50:19 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.72, 20.87 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
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 M 4.2 1988-04-05
17:50:19
37.72 20.87 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 65769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-04-05 17:50:19 ± 0.403
Latitude 37.72 ± 0.04
Longitude 20.87 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 65769

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) 4934.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00445
Epicentral distance of station farthest from the epicenter (degree) 0.05229
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

M:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 65769
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 Takeoff_angle Residual Weight
--.SGO.Z. 1988-04-05T17:52:33.00 10.0 undecidable manual SN 304 0.0464 0.05 0.6
--.MEU.Z. 1988-04-05T17:52:24.10 10.0 undecidable manual SN 264 0.0435 -1.16 0.2
--.ATN.Z. 1988-04-05T17:52:12.15 10.0 undecidable manual SN 277 0.0385 0.02 0.7
--.BRT.Z. 1988-04-05T17:52:10.93 10.0 undecidable manual SN 318 0.0384 -0.79 0.4
--.TDS.Z. 1988-04-05T17:52:07.00 10.0 undecidable manual SN 299 0.0362 0.89 0.4
--.SOR.Z. 1988-04-05T17:51:44.80 10.0 undecidable manual PN 301 0.0523 -0.88 0.8
--.MS1.Z. 1988-04-05T17:51:39.50 10.0 undecidable manual PN 317 0.0494 -1.8 0.2
--.SGO.Z. 1988-04-05T17:51:36.55 10.0 undecidable manual PN 304 0.0464 -0.14 1.5
--.MEU.Z. 1988-04-05T17:51:32.22 10.0 undecidable manual PN 264 0.0435 0.01 1.6
--.MGR.Z. 1988-04-05T17:51:31.92 10.0 undecidable manual PN 301 0.043 0.36 1.4
--.ATN.Z. 1988-04-05T17:51:26.11 10.0 undecidable manual PN 277 0.0385 1.43 0.4
--.BRT.Z. 1988-04-05T17:51:23.10 10.0 undecidable manual PN 318 0.0384 -1.34 0.5
--.ORI.Z. 1988-04-05T17:51:23.00 10.0 undecidable manual PN 305 0.0373 0.09 1.7
--.TDS.Z. 1988-04-05T17:51:22.00 10.0 undecidable manual PN 299 0.0362 0.8 1.1
--.LCI.Z. 1988-04-05T17:51:12.61 10.0 undecidable manual PN 321 0.0304 0.4 1.5
--.ATH.Z. 1988-04-05T17:50:57.00 10.0 undecidable manual PN 82 0.0203 0.04 1.7
--.VLS.Z. 1988-04-05T17:50:31.00 10.0 negative manual PG 334 0.0045 0.71 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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