Earthquake with magnitude of M 4.4 on date 22-04-1986 and time 20:33:39 (UTC) in region Costa Greca Ionica (GRECIA)

A magnitude M 4.4 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 22-04-1986 20:33:39 (UTC)
  • 22-04-1986 22:33:39 (UTC +02:00) Italian time
  • 22-04-1986 23:33:39 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.22, 20.49 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 4.4 1986-04-22
20:33:39
38.22 20.49 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 25909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-04-22 20:33:39 ± 0.296
Latitude 38.22 ± 0.02
Longitude 20.49 ± 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 25909

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) 3452.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.09414
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 39
Magnitude information

M:4.4

Field Value
Value 4.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 25909
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
--.CTI.Z. 1986-04-22T20:37:53.00 10.0 undecidable manual SN 323 0.0918 0.56 0.4
--.FO1.Z. 1986-04-22T20:37:50.50 10.0 undecidable manual SN 328 0.0911 0.05 0.5
--.RBL.Z. 1986-04-22T20:37:41.00 10.0 undecidable manual SN 330 0.0871 1.04 0.2
--.TRI.Z. 1986-04-22T20:37:25.00 10.0 undecidable manual SN 328 0.081 1.16 0.2
--.SAL.Z. 1986-04-22T20:36:08.50 10.0 undecidable manual PN 318 0.0941 -0.45 1.1
--.FO1.Z. 1986-04-22T20:36:03.50 10.0 undecidable manual PN 328 0.0911 -0.8 0.9
--.CTI.Z. 1986-04-22T20:36:03.50 10.0 undecidable manual PN 323 0.0918 -1.95 0.1
--.RBL.Z. 1986-04-22T20:35:58.20 10.0 undecidable manual PN 330 0.0871 -0.04 1.2
--.VOY.Z. 1986-04-22T20:35:50.00 10.0 undecidable manual PN 330 0.0829 -1.85 0.2
--.TRI.Z. 1986-04-22T20:35:47.00 10.0 undecidable manual PN 328 0.081 -1.94 0.2
--.LJU.Z. 1986-04-22T20:35:47.40 10.0 undecidable manual PN 332 0.0809 -1.3 0.5
--.FG3.Z. 1986-04-22T20:35:46.00 10.0 undecidable manual SN 316 0.0443 -0.91 0.4
--.CEY.Z. 1986-04-22T20:35:44.10 10.0 undecidable manual PN 331 0.0788 -1.56 0.3
--.CRE.Z. 1986-04-22T20:35:42.00 10.0 undecidable manual PN 312 0.0757 1.2 0.5
--.PZI.Z. 1986-04-22T20:35:37.00 10.0 undecidable manual SN 256 0.0408 -0.61 0.4
--.ASS.Z. 1986-04-22T20:35:32.00 10.0 undecidable manual PN 311 0.069 1.41 0.4
--.ARV.Z. 1986-04-22T20:35:31.70 10.0 undecidable manual PN 315 0.0699 -0.33 1.3
--.MNS.Z. 1986-04-22T20:35:25.50 10.0 undecidable manual PN 307 0.0653 0.44 1.3
--.ALP.Z. 1986-04-22T20:35:21.90 10.0 undecidable manual PN 313 0.0627 0.16 1.4
--.AQU.Z. 1986-04-22T20:35:20.00 10.0 undecidable manual PN 309 0.0612 1.26 0.5
--.SD1.Z. 1986-04-22T20:35:10.70 10.0 undecidable manual PN 306 0.0557 0.34 1.5
--.DUI.Z. 1986-04-22T20:35:05.70 10.0 undecidable manual PN 308 0.0518 1.27 0.6
--.SAR.Z. 1986-04-22T20:35:05.40 10.0 undecidable manual PN 345 0.0528 -0.45 1.5
--.GIB.Z. 1986-04-22T20:34:56.50 10.0 undecidable manual PN 269 0.0457 1.34 0.6
--.LCI.Z. 1986-04-22T20:34:55.50 10.0 undecidable manual SN 319 0.0252 -0.95 0.4
--.FG3.Z. 1986-04-22T20:34:53.00 10.0 positive manual PN 316 0.0443 0.02 3.3
--.PZI.Z. 1986-04-22T20:34:46.70 10.0 undecidable manual PN 256 0.0408 -0.9 0.9
--.MG9.Z. 1986-04-22T20:34:44.20 10.0 undecidable manual PN 298 0.0384 0.14 1.6
--.BCI.Z. 1986-04-22T20:34:42.50 10.0 undecidable manual PN 355 0.0374 0.02 1.6
--.ORI.Z. 1986-04-22T20:34:36.20 10.0 undecidable manual PN 301 0.0326 0.99 0.9
--.CSI.Z. 1986-04-22T20:34:36.10 10.0 undecidable manual PN 297 0.0325 1.12 0.7
--.BRT.Z. 1986-04-22T20:34:35.50 10.0 undecidable manual PN 317 0.0333 -0.63 1.4
--.DR2.Z. 1986-04-22T20:34:34.90 10.0 undecidable manual PN 278 0.0323 0.24 1.6
--.CZI.Z. 1986-04-22T20:34:34.40 10.0 undecidable manual PN 287 0.0318 0.45 1.5
--.PHP.Z. 1986-04-22T20:34:33.00 10.0 undecidable manual PN 359 0.0312 0 1.6
--.FE2.Z. 1986-04-22T20:34:32.20 10.0 undecidable manual PN 268 0.0312 -0.7 1.1
--.SO9.Z. 1986-04-22T20:34:32.50 10.0 undecidable manual PN 269 0.0313 -0.71 1.1
--.ROI.Z. 1986-04-22T20:34:30.60 10.0 undecidable manual PN 295 0.03 -0.56 1.4
--.GR9.Z. 1986-04-22T20:34:30.00 10.0 undecidable manual PN 282 0.0291 0.32 1.6
--.RI2.Z. 1986-04-22T20:34:29.20 10.0 undecidable manual PN 275 0.0283 0.67 1.3
--.TIR.Z. 1986-04-22T20:34:29.00 10.0 undecidable manual PN 351 0.0285 0.18 1.5
--.SE2.Z. 1986-04-22T20:34:26.70 10.0 undecidable manual PN 286 0.0274 -0.46 1.4
--.LCI.Z. 1986-04-22T20:34:23.00 10.0 undecidable manual PN 319 0.0252 -0.84 1.1
--.KZN.Z. 1986-04-22T20:34:18.00 10.0 undecidable manual PN 25 0.0208 0.88 0.8
--.SRN.Z. 1986-04-22T20:34:09.30 10.0 undecidable manual PN 347 0.0153 0.52 1.2
--.VLS.Z. 1986-04-22T20:33:42.00 10.0 undecidable manual PG 115 0.0007 -0.09 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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