Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of M 3.8 on date 03-10-1986 and time 11:28:39 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude M 3.8 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 03-10-1986 10:28:39 (UTC)
  • 03-10-1986 11:28:39 (UTC +01:00) Italian time
  • 03-10-1986 12:28:39 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.3510, 20.6030 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3.8 1986-10-03
10:28:39		 38.351 20.603 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 35209
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-03 10:28:39 ± 0.565
Latitude 38.3510 ± 0.0424
Longitude 20.6030 ± 0.0499
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 35209

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) 6418.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.08224
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitude information

M:3.8

Field Value
Value 3.8
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 35209
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
--.VOY.Z. 1986-10-03T10:30:49.50 10.0 undecidable manual PN 329 9.1242 -1.67 0.4
--.CEY.Z. 1986-10-03T10:30:44.50 10.0 undecidable manual PN 330 8.6802 -0.45 1
--.ARV.Z. 1986-10-03T10:30:31.00 10.0 undecidable manual PN 314 7.7256 -0.91 0.9
--.SD1.Z. 1986-10-03T10:30:12.00 10.0 undecidable manual PN 305 6.1716 1.41 0.7
--.SGG.Z. 1986-10-03T10:30:05.00 10.0 undecidable manual PN 304 5.6388 1.7 0.5
--.SOR.Z. 1986-10-03T10:29:58.50 10.0 undecidable manual PN 296 5.3169 -0.25 1.4
--.SGO.Z. 1986-10-03T10:29:51.50 10.0 undecidable manual PN 300 4.6398 2.1 0.3
--.NKY.Z. 1986-10-03T10:29:47.00 10.0 undecidable manual PN 345 4.6176 -2.11 0.3
--.MG9.Z. 1986-10-03T10:29:45.50 10.0 undecidable manual PN 296 4.2846 0.88 1.2
--.BCI.Z. 1986-10-03T10:29:43.00 10.0 undecidable manual PN 354 4.0293 1.96 0.4
--.TTG.Z. 1986-10-03T10:29:42.50 10.0 undecidable manual PN 346 4.1958 -0.85 1.3
--.BDV.Z. 1986-10-03T10:29:41.00 10.0 undecidable manual PN 341 4.1514 -1.71 0.6
--.ORI.Z. 1986-10-03T10:29:36.00 10.0 undecidable manual PN? 299 3.6297 0.35 0.6
--.SDA.Z. 1986-10-03T10:29:36.20 10.0 undecidable manual PN 347 3.7518 -1.05 1.1
--.SO9.Z. 1986-10-03T10:29:35.00 10.0 undecidable manual PN 266 3.5742 0.17 1.6
--.SKO.Z. 1986-10-03T10:29:35.50 10.0 undecidable manual PN 9 3.663 -0.61 1.4
--.BRT.Z. 1986-10-03T10:29:35.00 10.0 undecidable manual PN? 314 3.6519 -0.97 0.5
--.PHP.Z. 1986-10-03T10:29:31.20 10.0 undecidable manual PN 357 3.33 -0.27 1.6
--.GR9.Z. 1986-10-03T10:29:31.00 10.0 undecidable manual PN 279 3.2856 0.14 1.6
--.TIR.Z. 1986-10-03T10:29:26.70 10.0 undecidable manual PN 349 3.0414 -0.8 1.3
--.LCI.Z. 1986-10-03T10:29:24.00 10.0 undecidable manual PN 316 2.7639 0.41 1.5
--.OHR.Z. 1986-10-03T10:29:24.20 10.0 undecidable manual PN 3 2.7639 0.61 1.4
--.ATH.Z. 1986-10-03T10:29:21.50 10.0 undecidable manual PN 97 2.4753 1.86 0.5
--.KBN.Z. 1986-10-03T10:29:17.40 10.0 undecidable manual PN 3 2.2755 0.5 1.5
--.KZN.Z. 1986-10-03T10:29:16.00 10.0 undecidable manual PN 24 2.1423 0.79 1.3
--.SRN.Z. 1986-10-03T10:29:07.90 10.0 undecidable manual PN 343 1.5873 0.3 1.6
--.VLS.Z. 1986-10-03T10:28:42.00 10.0 undecidable manual PG 183 0.1665 -1.93 0.5
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