Earthquake with magnitude of Md 3.6 on date 18-10-1988 and time 19:28:31 (UTC) in region Costa Greca Ionica (GRECIA)

A magnitude Md 3.6 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 18-10-1988 19:28:31 (UTC)
  • 18-10-1988 20:28:31 (UTC +01:00) Italian time
  • 18-10-1988 21:28:31 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.9950, 20.8870 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
Bulletin
Rev1000
Md 3.6
M 3.8
1988-10-18
19:28:31
37.995 20.887 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 79119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-18 19:28:31 ± 0.38
Latitude 37.9950 ± 0.0338
Longitude 20.8870 ± 0.0249
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 79119

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) 4347.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.04517
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:3.6

Field Value
Value 3.6
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 79119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:14:27

M:3.8

Field Value
Value 3.8
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 79119
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
--.FE2.Z. 1988-10-18T19:30:12.50 10.0 undecidable manual SN 271 3.774 1.05 0.1
--.SGO.Z. 1988-10-18T19:29:46.55 10.0 undecidable manual PN 302 5.0172 0.48 0.9
--.PZI.Z. 1988-10-18T19:29:41.95 10.0 undecidable manual PN 260 4.7841 -1.12 0.2
--.MGR.Z. 1988-10-18T19:29:41.91 10.0 undecidable manual PN 298 4.6398 0.78 0.6
--.BCI.Z. 1988-10-18T19:29:37.90 10.0 undecidable manual PN 351 4.4067 0.13 1.3
--.SDA.Z. 1988-10-18T19:29:33.50 10.0 undecidable manual PN 345 4.1514 -0.73 0.6
--.BRT.Z. 1988-10-18T19:29:32.43 10.0 undecidable manual PN 315 4.0737 -0.68 0.7
--.FE2.Z. 1988-10-18T19:29:30.12 10.0 undecidable manual PN 271 3.774 1.06 0.3
--.CZI.Z. 1988-10-18T19:29:30.54 10.0 undecidable manual PN 289 3.8961 -0.28 1.3
--.VAY.Z. 1988-10-18T19:29:26.00 10.0 undecidable manual PN 20 3.5631 -0.16 1.4
--.LCI.Z. 1988-10-18T19:29:20.58 10.0 undecidable manual PN 318 3.1746 -0.2 1.4
--.OHR.Z. 1988-10-18T19:29:20.00 10.0 undecidable manual PN 358 3.108 0.05 3
--.KBN.Z. 1988-10-18T19:29:13.50 10.0 undecidable manual PN 358 2.6196 0.24 1.4
--.KZN.Z. 1988-10-18T19:29:11.00 10.0 undecidable manual PN 16 2.3976 0.74 0.7
--.ATH.Z. 1988-10-18T19:29:07.60 10.0 undecidable manual PN 89 2.22 -0.18 1.4
--.VLS.Z. 1988-10-18T19:28:37.00 10.0 undecidable manual PG 307 0.2886 -0.72 0.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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