Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of M 4.1 on date 27-05-1986 and time 16:41:52 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude M 4.1 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 27-05-1986 14:41:52 (UTC)
  • 27-05-1986 16:41:52 (UTC +02:00) Italian time
  • 27-05-1986 17:41:52 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.3510, 20.4460 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 4.1 1986-05-27
14:41:52		 37.351 20.446 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 28069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-27 14:41:52 ± 0.469
Latitude 37.3510 ± 0.0378
Longitude 20.4460 ± 0.0301
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 28069

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) 4975.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
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) 0.02291
Epicentral distance of station farthest from the epicenter (degree) 0.05164
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitude information

M:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 28069
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
--.FG3.Z. 1986-05-27T14:44:15.00 10.0 undecidable manual SN 322 5.55 -0.01 0.6
--.CDM.Z. 1986-05-27T14:43:59.00 10.0 undecidable manual SN 320 4.9284 -0.93 0.3
--.PZI.Z. 1986-05-27T14:43:48.00 10.0 undecidable manual SN 267 4.3734 1 0.3
--.GR9.Z. 1986-05-27T14:43:27.00 10.0 undecidable manual SN 295 3.4743 1.51 0.1
--.SOR.Z. 1986-05-27T14:43:17.90 10.0 undecidable manual PN 305 5.7276 0.81 0.9
--.FG3.Z. 1986-05-27T14:43:14.00 10.0 undecidable manual PN 322 5.55 -0.66 1
--.TR9.Z. 1986-05-27T14:43:14.80 10.0 undecidable manual PN 313 5.4612 1.4 0.3
--.FG4.Z. 1986-05-27T14:43:12.00 10.0 undecidable manual PN 316 5.3613 0.03 1.5
--.SGO.Z. 1986-05-27T14:43:10.00 10.0 undecidable manual PN 310 5.1171 1.43 0.3
--.GIB.Z. 1986-05-27T14:43:09.50 10.0 undecidable manual PN 278 5.106 0.99 0.7
--.CDM.Z. 1986-05-27T14:43:06.00 10.0 undecidable manual PN 320 4.9284 0.05 1.6
--.MG9.Z. 1986-05-27T14:43:03.50 10.0 undecidable manual PN 307 4.7064 0.42 1.4
--.SDA.Z. 1986-05-27T14:43:02.80 10.0 undecidable manual PN 351 4.7064 -0.25 1.5
--.BAI.Z. 1986-05-27T14:43:01.10 10.0 undecidable manual PN 324 4.6509 -1.14 0.6
--.BRT.Z. 1986-05-27T14:42:58.00 10.0 undecidable manual PN 324 4.3401 0 1.7
--.MMN.Z. 1986-05-27T14:42:57.80 10.0 undecidable manual PN 307 4.2957 0.42 1.5
--.PZI.Z. 1986-05-27T14:42:57.50 10.0 undecidable manual PN 267 4.3734 -0.99 0.8
--.PHP.Z. 1986-05-27T14:42:56.80 10.0 undecidable manual PN 359 4.3179 -0.97 0.8
--.TIR.Z. 1986-05-27T14:42:54.00 10.0 undecidable manual PN 353 4.0071 0.55 1.3
--.CZI.Z. 1986-05-27T14:42:50.70 10.0 undecidable manual PN 299 3.8517 -0.6 1.3
--.DR2.Z. 1986-05-27T14:42:50.20 10.0 undecidable manual PN 291 3.774 0 1.7
--.GA2.Z. 1986-05-27T14:42:49.10 10.0 undecidable manual PN 283 3.7296 -0.48 1.4
--.ROI.Z. 1986-05-27T14:42:48.70 10.0 undecidable manual PN 307 3.7518 -1.19 0.6
--.LCI.Z. 1986-05-27T14:42:46.40 10.0 undecidable manual PN 329 3.4854 0.21 1.6
--.GR9.Z. 1986-05-27T14:42:45.50 10.0 undecidable manual PN 295 3.4743 -0.57 1.3
--.FE2.Z. 1986-05-27T14:42:45.40 10.0 undecidable manual PN 282 3.5076 -1.12 0.6
--.KBN.Z. 1986-05-27T14:42:43.00 10.0 undecidable manual PN 4 3.2745 -0.31 1.6
--.KZN.Z. 1986-05-27T14:42:40.50 10.0 undecidable manual PN 18 3.1191 -0.73 1.1
--.ATH.Z. 1986-05-27T14:42:35.50 10.0 undecidable manual PN 75 2.6529 0.7 1.1
--.SRN.Z. 1986-05-27T14:42:34.60 10.0 undecidable manual PN 352 2.5419 1.31 0.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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