Earthquake with magnitude of M 4.2 on date 20-04-1989 and time 18:47:43 (UTC) in region Greece [Sea]

A magnitude M 4.2 earthquake occured in region: Greece [Sea], on

  • 20-04-1989 18:47:43 (UTC)
  • 20-04-1989 20:47:43 (UTC +02:00) Italian time
  • 20-04-1989 21:47:43 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 35.8, 21.72 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 1989-04-20
18:47:43
35.8 21.72 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 90219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-04-20 18:47:43 ± 0.423
Latitude 35.80 ± 0.03
Longitude 21.72 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 90219

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) 4273.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 62
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.01247
Epicentral distance of station farthest from the epicenter (degree) 0.13607
Number of stations at which the event was observed 50
Number of stations from which data was used for origin computation 50
Magnitude information

M:4.2

Field Value
Value 4.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 90219
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
--.VOY.Z. 1989-04-20T18:52:33.00 10.0 undecidable manual SN 332 0.1063 -1.82 0.1
--.VBY.Z. 1989-04-20T18:52:11.40 10.0 undecidable manual SN 335 0.0978 -0.98 0.3
--.PRU.Z. 1989-04-20T18:51:15.50 10.0 undecidable manual P 342 0.1361 -1.64 0.2
--.KHC.Z. 1989-04-20T18:51:09.90 10.0 undecidable manual P 338 0.1315 -0.25 0.8
--.VOY.Z. 1989-04-20T18:50:30.50 10.0 undecidable manual PN 332 0.1063 -1.22 0.5
--.CEY.Z. 1989-04-20T18:50:27.50 10.0 undecidable manual PN 333 0.1022 1.91 0.2
--.BRT.Z. 1989-04-20T18:50:21.20 10.0 undecidable manual SN 326 0.0559 -0.45 0.5
--.VBY.Z. 1989-04-20T18:50:18.30 10.0 undecidable manual PN 335 0.0978 -0.46 0.9
--.MEU.Z. 1989-04-20T18:50:08.32 10.0 undecidable manual SN 285 0.0512 -1.03 0.3
--.PZI.Z. 1989-04-20T18:50:07.66 10.0 undecidable manual SN 285 0.0503 0.73 0.4
--.ATN.Z. 1989-04-20T18:50:05.14 10.0 undecidable manual SN 297 0.0497 -0.23 0.6
--.LCI.Z. 1989-04-20T18:50:00.46 10.0 undecidable manual SN 329 0.0481 -0.67 0.5
--.MO9.Z. 1989-04-20T18:50:00.70 10.0 undecidable manual SN 296 0.0476 0.14 0.6
--.GRI.Z. 1989-04-20T18:49:56.43 10.0 undecidable manual SN 307 0.0466 -0.85 0.4
--.SOI.Z. 1989-04-20T18:49:54.77 10.0 undecidable manual SN 298 0.0456 0.34 0.5
--.SDI.Z. 1989-04-20T18:49:46.59 10.0 undecidable manual PN 316 0.0768 -0.2 1.2
--.LSK.Z. 1989-04-20T18:49:41.00 10.0 undecidable manual SN 348 0.0398 1.55 0.3
--.SRN.Z. 1989-04-20T18:49:37.70 10.0 undecidable manual SN 342 0.0386 1.54 0.3
--.FG2.Z. 1989-04-20T18:49:37.36 10.0 undecidable manual PN 321 0.0709 -0.42 1.2
--.SOR.Z. 1989-04-20T18:49:32.40 10.0 undecidable manual PN 311 0.0676 -0.38 1.2
--.SGO.Z. 1989-04-20T18:49:25.20 10.0 undecidable manual PN 315 0.0623 0.5 1.2
--.CDM.Z. 1989-04-20T18:49:22.00 10.0 undecidable manual PN 322 0.061 -0.7 1.1
--.BCI.Z. 1989-04-20T18:49:21.00 10.0 undecidable manual PN 349 0.0601 -0.36 1.3
--.KKS.Z. 1989-04-20T18:49:20.00 10.0 undecidable manual PN! 351 0.0571 3.21 0
--.BAI.Z. 1989-04-20T18:49:20.00 10.0 undecidable manual PN 326 0.0586 0.93 0.9
--.SDA.Z. 1989-04-20T18:49:19.00 10.0 undecidable manual PN 345 0.058 0.91 0.9
--.KDZ.Z. 1989-04-20T18:49:18.00 10.0 negative manual PN 24 0.0583 -0.61 2.3
--.MGR.Z. 1989-04-20T18:49:18.89 10.0 positive manual PN 313 0.0585 -0.08 2.8
--.PUK.Z. 1989-04-20T18:49:16.60 10.0 undecidable manual PN 347 0.0576 -0.8 1
--.BRT.Z. 1989-04-20T18:49:15.80 10.0 undecidable manual PN 326 0.0559 0.97 0.9
--.MMN.Z. 1989-04-20T18:49:14.50 10.0 undecidable manual PN 314 0.0548 1.23 0.7
--.CSI.Z. 1989-04-20T18:49:13.54 10.0 undecidable manual PN! 314 0.0526 3.63 0
--.SKO.Z. 1989-04-20T18:49:13.00 10.0 undecidable manual PN 358 0.0554 -1.29 1.3
--.RDO.Z. 1989-04-20T18:49:12.60 10.0 undecidable manual PN 28 0.055 -0.98 0.9
--.PHP.Z. 1989-04-20T18:49:11.50 10.0 positive manual PN 350 0.0537 0 2.9
--.TDS.Z. 1989-04-20T18:49:08.47 10.0 undecidable manual PN 313 0.0516 0.03 1.4
--.MEU.Z. 1989-04-20T18:49:07.55 10.0 undecidable manual PN 285 0.0512 -0.18 1.4
--.TIR.Z. 1989-04-20T18:49:07.00 10.0 undecidable manual PN 346 0.0515 -1.24 0.7
--.PZI.Z. 1989-04-20T18:49:05.89 10.0 undecidable manual PN 285 0.0503 -0.44 1.3
--.ATN.Z. 1989-04-20T18:49:05.87 10.0 undecidable manual PN 297 0.0497 0.44 1.3
--.VAY.Z. 1989-04-20T18:49:04.80 10.0 undecidable manual PN 6 0.0499 -1.05 1.7
--.LCI.Z. 1989-04-20T18:49:02.25 10.0 undecidable manual PN 329 0.0481 -0.73 1.1
--.MO9.Z. 1989-04-20T18:49:02.38 10.0 undecidable manual PN 296 0.0476 0.09 1.4
--.OHR.Z. 1989-04-20T18:49:02.80 10.0 negative manual PN 352 0.0482 -0.3 2.7
--.GRI.Z. 1989-04-20T18:49:00.32 10.0 positive manual PN 307 0.0466 -0.44 2.6
--.VLO.Z. 1989-04-20T18:49:00.70 10.0 undecidable manual PN! 340 0.0448 2.73 0
--.FE2.Z. 1989-04-20T18:48:59.12 10.0 undecidable manual PN 298 0.0452 0.52 1.3
--.PRK.Z. 1989-04-20T18:48:59.50 10.0 undecidable manual PN 45 0.0448 1.48 0.5
--.SOI.Z. 1989-04-20T18:48:58.97 10.0 positive manual PN 298 0.0456 -0.15 2.8
--.KBN.Z. 1989-04-20T18:48:58.00 10.0 undecidable manual PN 351 0.0438 1.48 0.5
--.RI2.Z. 1989-04-20T18:48:57.72 10.0 undecidable manual PN 303 0.0443 0.5 1.3
--.TPE.Z. 1989-04-20T18:48:55.50 10.0 negative manual PN 343 0.0411 3.11 0
--.PLG.Z. 1989-04-20T18:48:55.40 10.0 undecidable manual PN 16 0.0428 0.38 1.3
--.KZN.Z. 1989-04-20T18:48:51.60 10.0 undecidable manual PN 0 0.0405 0.21 1.4
--.LSK.Z. 1989-04-20T18:48:50.10 10.0 undecidable manual PN 348 0.0398 -0.36 1.3
--.SRN.Z. 1989-04-20T18:48:49.20 10.0 undecidable manual PN 342 0.0386 0.63 1.2
--.KEK.Z. 1989-04-20T18:48:46.60 10.0 undecidable manual PN 339 0.0377 -0.56 1.2
--.NEO.Z. 1989-04-20T18:48:41.00 10.0 undecidable manual PN 18 0.0333 0.63 1.2
--.ATH.Z. 1989-04-20T18:48:28.50 10.0 undecidable manual PN 35 0.0242 1.96 0.2
--.VLS.Z. 1989-04-20T18:48:25.00 10.0 undecidable manual PN 339 0.0228 0.54 1.2
--.VAM.Z. 1989-04-20T18:48:17.00 10.0 undecidable manual PN 95 0.0182 -0.38 1.3
--.ITM.Z. 1989-04-20T18:48:06.40 10.0 undecidable manual PN 6 0.0125 -2.23 0.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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