Earthquake with magnitude of M 4.2 on date 08-07-1986 and time 16:15:09 (UTC) in region Costa Greca Ionica (GRECIA)

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

  • 08-07-1986 16:15:09 (UTC)
  • 08-07-1986 18:15:09 (UTC +02:00) Italian time
  • 08-07-1986 19:15:09 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.92, 21.06 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 1986-07-08
16:15:09
37.92 21.06 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 30779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-07-08 16:15:09 ± 0.512
Latitude 37.92 ± 0.03
Longitude 21.06 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 30779

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) 4827.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 279
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.02987
Epicentral distance of station farthest from the epicenter (degree) 0.09633
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

M:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 30779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:30:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CTI.Z. 1986-07-08T16:19:34.50 10.0 undecidable manual SN 320 0.0963 0.12 0.5
--.FO1.Z. 1986-07-08T16:19:32.00 10.0 undecidable manual SN 325 0.0954 0.04 0.8
--.CTI.Z. 1986-07-08T16:17:42.00 10.0 undecidable manual PN 320 0.0963 -0.36 1
--.FO1.Z. 1986-07-08T16:17:41.00 10.0 undecidable manual PN 325 0.0954 0.03 1.3
--.ARV.Z. 1986-07-08T16:17:08.70 10.0 undecidable manual PN 312 0.0746 -0.56 0.8
--.MNS.Z. 1986-07-08T16:17:03.00 10.0 undecidable manual PN 305 0.0702 0.56 0.9
--.BRT.Z. 1986-07-08T16:16:59.60 10.0 undecidable manual SN 313 0.038 -0.65 0.3
--.SAR.Z. 1986-07-08T16:16:40.80 10.0 undecidable manual PN 340 0.0564 -0.73 0.6
--.SOR.Z. 1986-07-08T16:16:34.70 10.0 undecidable manual PN 297 0.0525 -0.9 0.4
--.GIB.Z. 1986-07-08T16:16:31.00 10.0 undecidable manual PN 271 0.0499 -0.45 1.2
--.SGO.Z. 1986-07-08T16:16:27.00 10.0 undecidable manual PN 300 0.0465 0.59 0.9
--.BRT.Z. 1986-07-08T16:16:13.50 10.0 undecidable manual PN 313 0.038 0.13 1.7
--.ORI.Z. 1986-07-08T16:16:13.50 10.0 undecidable manual PN 300 0.0375 0.86 0.4
--.TS9.Z. 1986-07-08T16:16:12.00 10.0 undecidable manual PN 294 0.0366 0.76 0.6
--.SO9.Z. 1986-07-08T16:16:09.00 10.0 undecidable manual PN 271 0.0355 -0.52 1.1
--.GR9.Z. 1986-07-08T16:16:07.00 10.0 undecidable manual PN 283 0.0336 0.32 1.5
--.PHP.Z. 1986-07-08T16:16:07.90 10.0 undecidable manual PN 351 0.0342 0.35 1.4
--.TIR.Z. 1986-07-08T16:16:04.20 10.0 undecidable manual PN 343 0.0319 0.08 1.7
--.LCI.Z. 1986-07-08T16:16:01.00 10.0 undecidable manual PN 315 0.0299 -0.02 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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