Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of M 5.4 on date 28-02-1987 and time 00:34:56 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude M 5.4 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 27-02-1987 23:34:56 (UTC)
  • 28-02-1987 00:34:56 (UTC +01:00) Italian time
  • 28-02-1987 01:34:56 (UTC +02:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 38.5640, 20.3390 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 5.4 1987-02-27
23:34:56		 38.564 20.339 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 42189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-02-27 23:34:56 ± 0.267
Latitude 38.5640 ± 0.0255
Longitude 20.3390 ± 0.0192
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 42189

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) 3288.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 135
Number of defining phases 135
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) 0.02218
Epicentral distance of station farthest from the epicenter (degree) 0.15331
Number of stations at which the event was observed 127
Number of stations from which data was used for origin computation 127
Magnitude information

M:5.4

Field Value
Value 5.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 42189
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
--.MFF.Z. 1987-02-27T23:38:55.00 10.0 undecidable manual P 303 17.0163 -0.96 0.7
--.DOU.Z. 1987-02-27T23:38:43.00 10.0 undecidable manual P 319 16.0506 0.27 0.9
--.LFF.Z. 1987-02-27T23:38:40.70 10.0 undecidable manual P 298 15.8841 0.23 0.9
--.LSF.Z. 1987-02-27T23:38:37.00 10.0 undecidable manual P 304 15.8064 -2.39 0.1
--.RJF.Z. 1987-02-27T23:38:34.60 10.0 undecidable manual P 300 15.4845 -0.25 0.9
--.BNS.Z. 1987-02-27T23:38:34.30 10.0 positive manual P 326 15.4623 -0.41 1.8
--.STB.Z. 1987-02-27T23:38:32.10 10.0 negative manual P 324 15.3402 -0.88 1.5
--.TRI.Z. 1987-02-27T23:38:32.70 10.0 undecidable manual SN 326 8.6247 0.76 0.6
--.TCF.Z. 1987-02-27T23:38:32.60 10.0 undecidable manual P 304 15.3957 -1.03 0.7
--.GRC.Z. 1987-02-27T23:38:30.10 10.0 negative manual P 309 15.3069 -2.34 0.3
--.CAF.Z. 1987-02-27T23:38:29.20 10.0 undecidable manual P 299 14.985 1.09 0.7
--.OFD.Z. 1987-02-27T23:38:29.00 10.0 undecidable manual P 264 15.0627 -0.13 0.9
--.MAF.Z. 1987-02-27T23:38:29.30 10.0 undecidable manual P 304 15.1404 -0.86 0.7
--.SSF.Z. 1987-02-27T23:38:24.70 10.0 undecidable manual P 308 14.9295 -2.64 0.1
--.AVF.Z. 1987-02-27T23:38:24.20 10.0 undecidable manual P 307 14.8962 -2.66 0.1
--.LOR.Z. 1987-02-27T23:38:23.30 10.0 undecidable manual P 310 14.8296 -2.55 0.1
--.LBF.Z. 1987-02-27T23:38:20.70 10.0 undecidable manual P 309 14.6076 -2.25 0.2
--.ZAG.Z. 1987-02-27T23:38:19.50 10.0 undecidable manual SN! 336 7.9254 4.22 0
--.SMF.Z. 1987-02-27T23:38:19.60 10.0 undecidable manual P 307 14.5299 -2.24 0.2
--.ABA.Z. 1987-02-27T23:38:11.00 10.0 undecidable manual PN 266 13.764 -0.3 1.9
--.HAU.Z. 1987-02-27T23:38:10.40 10.0 undecidable manual PN 316 13.8417 -1.92 0.3
--.GWF.Z. 1987-02-27T23:38:10.00 10.0 undecidable manual PN 321 13.8417 -2.28 0.2
--.CLL.Z. 1987-02-27T23:38:09.70 10.0 negative manual PN 338 13.7196 -1.05 1.4
--.CDF.Z. 1987-02-27T23:38:08.00 10.0 undecidable manual PN 319 13.6197 -1.32 0.6
--.MOX.Z. 1987-02-27T23:38:06.00 10.0 undecidable manual PN 334 13.542 -2.27 0.2
--.BSF.Z. 1987-02-27T23:38:06.00 10.0 undecidable manual PN 316 13.4976 -1.62 0.4
--.MOF.Z. 1987-02-27T23:38:04.60 10.0 undecidable manual PN 317 13.32 -0.73 0.9
--.ROF.Z. 1987-02-27T23:38:04.20 10.0 undecidable manual PN 316 13.3422 -1.34 0.6
--.STU.Z. 1987-02-27T23:38:00.00 10.0 undecidable manual PN 324 12.9648 -0.31 1
--.FEL.Z. 1987-02-27T23:37:58.60 10.0 undecidable manual PN 318 12.8982 -0.72 0.9
--.BBS.Z. 1987-02-27T23:37:58.60 10.0 undecidable manual PN 316 12.8871 -0.66 0.9
--.ZLA.Z. 1987-02-27T23:37:53.30 10.0 undecidable manual PN 318 12.4542 0.03 1.1
--.SLE.Z. 1987-02-27T23:37:53.30 10.0 undecidable manual PN 319 12.5763 -1.75 0.4
--.EMS.Z. 1987-02-27T23:37:52.70 10.0 undecidable manual PN 310 12.3876 0.23 1
--.LPG.Z. 1987-02-27T23:37:50.90 10.0 undecidable manual PN 307 12.1989 1.02 0.8
--.BNI.Z. 1987-02-27T23:37:49.00 10.0 undecidable manual PN 305 12.0324 1.46 0.5
--.DIX.Z. 1987-02-27T23:37:49.60 10.0 undecidable manual PN 311 12.1212 0.88 0.8
--.PRU.Z. 1987-02-27T23:37:48.00 10.0 undecidable manual PN 340 12.1212 -0.77 0.9
--.MMK.Z. 1987-02-27T23:37:46.50 10.0 undecidable manual PN 312 11.7882 2.38 0.2
--.SAX.Z. 1987-02-27T23:37:45.40 10.0 undecidable manual PN 319 11.8104 0.98 0.8
--.LLS.Z. 1987-02-27T23:37:44.30 10.0 undecidable manual PN 317 11.7105 1.23 0.7
--.LRG.Z. 1987-02-27T23:37:42.30 10.0 undecidable manual PN 298 11.5884 0.86 0.9
--.DA9.Z. 1987-02-27T23:37:41.00 10.0 undecidable manual PN 304 11.433 1.84 0.4
--.KHC.Z. 1987-02-27T23:37:40.60 10.0 positive manual PN 336 11.6106 -1.05 1.6
--.FUR.Z. 1987-02-27T23:37:40.90 10.0 positive manual PN 327 11.6106 -0.8 1.8
--.LMR.Z. 1987-02-27T23:37:39.80 10.0 undecidable manual PN 297 11.4441 0.33 1.1
--.KRA.Z. 1987-02-27T23:37:39.50 10.0 undecidable manual PN 357 11.4774 -0.37 1.1
--.FRF.Z. 1987-02-27T23:37:39.80 10.0 undecidable manual PN 298 11.433 0.51 1
--.VDL.Z. 1987-02-27T23:37:38.00 10.0 undecidable manual PN 316 11.2332 1.5 0.5
--.TMA.Z. 1987-02-27T23:37:36.80 10.0 undecidable manual PN 314 11.3109 -0.79 0.9
--.GAP.Z. 1987-02-27T23:37:36.60 10.0 negative manual PN 324 11.1666 1.01 1.6
--.SBF.Z. 1987-02-27T23:37:35.00 10.0 undecidable manual PN 301 11.0223 1.33 0.6
--.ROB.Z. 1987-02-27T23:37:35.00 10.0 undecidable manual PN 304 10.9335 2.59 0.1
--.VAI.Z. 1987-02-27T23:37:35.50 10.0 undecidable manual PN 312 11.2221 -0.88 0.9
--.OSS.Z. 1987-02-27T23:37:34.00 10.0 undecidable manual PN 319 11.0223 0.35 1.1
--.CKI.Z. 1987-02-27T23:37:31.00 10.0 undecidable manual PN 305 10.7337 1.34 0.6
--.SPC.Z. 1987-02-27T23:37:28.50 10.0 undecidable manual PN 358 10.6005 0.58 2.1
--.BHG.Z. 1987-02-27T23:37:27.80 10.0 positive manual PN 330 10.6227 -0.35 2.2
--.MDI.Z. 1987-02-27T23:37:27.00 10.0 undecidable manual PN 314 10.6449 -1.49 0.6
--.KMR.Z. 1987-02-27T23:37:26.00 10.0 undecidable manual PN 335 10.4895 -0.24 2.3
--.GEN.Z. 1987-02-27T23:37:26.80 10.0 undecidable manual PN 306 10.323 2.77 0.1
--.CO9.Z. 1987-02-27T23:37:24.00 10.0 undecidable manual PN 309 10.2009 1.66 0.5
--.SAL.Z. 1987-02-27T23:37:20.00 10.0 undecidable manual PN 315 10.101 -0.98 0.9
--.KBA.Z. 1987-02-27T23:37:17.80 10.0 positive manual PN 329 9.9123 -0.59 2.1
--.CTI.Z. 1987-02-27T23:37:16.20 10.0 undecidable manual PN 320 9.8346 -1.13 0.8
--.FO1.Z. 1987-02-27T23:37:15.00 10.0 undecidable manual PN 326 9.7347 -1.05 0.9
--.CVF.Z. 1987-02-27T23:37:13.20 10.0 undecidable manual PN 297 9.5571 -0.36 1.2
--.SOP.Z. 1987-02-27T23:37:11.80 10.0 positive manual PN 342 9.5016 -0.99 1.8
--.BAC.Z. 1987-02-27T23:37:10.00 10.0 undecidable manual PN 27 9.3351 -0.49 1.1
--.SRO.Z. 1987-02-27T23:37:09.20 10.0 undecidable manual PN 350 9.3462 -1.41 0.7
--.BDI.Z. 1987-02-27T23:37:09.00 10.0 undecidable manual PN 308 9.1242 1.41 0.7
--.RBL.Z. 1987-02-27T23:37:09.50 10.0 undecidable manual PN 328 9.3018 -0.47 1.2
--.PS9.Z. 1987-02-27T23:37:08.00 10.0 undecidable manual PN 306 8.9799 2.33 0.2
--.BUD.Z. 1987-02-27T23:37:04.00 10.0 negative manual PN 352 8.9466 -1.2 1.6
--.VRI.Z. 1987-02-27T23:37:03.20 10.0 negative manual PN 29 8.6913 1.57 1.1
--.LJU.Z. 1987-02-27T23:37:00.10 10.0 positive manual PN 330 8.6025 -0.3 2.4
--.FIR.Z. 1987-02-27T23:36:59.00 10.0 undecidable manual PN 308 8.5692 -0.98 0.9
--.TRI.Z. 1987-02-27T23:36:59.00 10.0 positive manual PN 326 8.6247 -1.71 1
--.MF9.Z. 1987-02-27T23:36:58.50 10.0 undecidable manual PN 311 8.2806 2.65 0.1
--.BRY.Z. 1987-02-27T23:36:57.20 10.0 undecidable manual SN! 341 4.5288 2.67 0
--.CEY.Z. 1987-02-27T23:36:57.30 10.0 positive manual PN 329 8.3805 -0.1 2.5
--.MLR.Z. 1987-02-27T23:36:54.80 10.0 positive manual PN 27 8.0697 1.7 1
--.NKY.Z. 1987-02-27T23:36:54.50 10.0 undecidable manual SN! 345 4.3623 4.15 0
--.CRE.Z. 1987-02-27T23:36:53.00 10.0 undecidable manual PN 309 8.0697 -0.1 1.2
--.MAO.Z. 1987-02-27T23:36:52.50 10.0 undecidable manual PN 300 7.9476 1 0.9
--.ZAG.Z. 1987-02-27T23:36:50.50 10.0 undecidable manual PN 336 7.9254 -0.59 1.1
--.HCY.Z. 1987-02-27T23:36:48.50 10.0 undecidable manual SN! 339 4.1181 3.88 0
--.ASS.Z. 1987-02-27T23:36:45.00 10.0 undecidable manual PN 308 7.3371 2.05 0.3
--.ARV.Z. 1987-02-27T23:36:44.80 10.0 undecidable manual PN 312 7.4259 0.55 1.1
--.BDV.Z. 1987-02-27T23:36:42.80 10.0 undecidable manual SN! 341 3.885 3.75 0
--.AM8.Z. 1987-02-27T23:36:41.43 10.0 undecidable manual PN 315 7.0929 1.71 0.5
--.CM8.Z. 1987-02-27T23:36:41.43 10.0 undecidable manual PN 311 7.1262 1.35 0.7
--.ISK.Z. 1987-02-27T23:36:40.40 10.0 undecidable manual PN 65 7.1373 0.2 1.2
--.IST.Z. 1987-02-27T23:36:40.00 10.0 negative manual PN 65 7.0818 0.5 2.3
--.RMP.Z. 1987-02-27T23:36:35.00 10.0 undecidable manual PN 300 6.66 1.32 0.7
--.AQU.Z. 1987-02-27T23:36:33.00 10.0 undecidable manual PN 306 6.4824 1.77 0.5
--.ULC.Z. 1987-02-27T23:36:29.50 10.0 undecidable manual SN 345 3.4854 -0.2 0.5
--.CIN.Z. 1987-02-27T23:36:28.50 10.0 undecidable manual PN 95 6.1494 1.72 0.5
--.ERC.Z. 1987-02-27T23:36:26.50 10.0 undecidable manual PN 266 6.0939 0.63 1.1
--.CV9.Z. 1987-02-27T23:36:24.00 10.0 undecidable manual PN 262 5.9829 -0.46 1.2
--.SD1.Z. 1987-02-27T23:36:24.20 10.0 undecidable manual PN 302 5.883 1.18 0.8
--.MSC.Z. 1987-02-27T23:36:19.50 10.0 undecidable manual PN 298 5.5389 1.29 0.7
--.DUI.Z. 1987-02-27T23:36:19.00 10.0 undecidable manual PN 304 5.4501 2.01 0.3
--.SGG.Z. 1987-02-27T23:36:17.10 10.0 undecidable manual PN 302 5.3502 1.34 0.7
--.IZM.Z. 1987-02-27T23:36:16.60 10.0 undecidable manual PN 88 5.4057 0.11 2.5
--.FAI.Z. 1987-02-27T23:36:15.00 10.0 undecidable manual PN 256 5.3946 -1.44 0.6
--.NPS.Z. 1987-02-27T23:36:14.00 10.0 undecidable manual PN 125 5.3502 -1.65 0.5
--.OVO.Z. 1987-02-27T23:36:13.70 10.0 undecidable manual PN 296 5.0838 1.63 0.5
--.ATH.Z. 1987-02-27T23:36:11.10 10.0 undecidable manual SN 100 2.7084 -0.02 0.5
--.SOR.Z. 1987-02-27T23:36:11.60 10.0 undecidable manual PN 294 5.0283 0.24 1.2
--.KDZ.Z. 1987-02-27T23:36:10.00 10.0 negative manual PN 48 4.9062 0.42 2.4
--.GIB.Z. 1987-02-27T23:36:09.00 10.0 undecidable manual PN 263 4.9728 -1.55 0.6
--.PLE.Z. 1987-02-27T23:36:09.50 10.0 positive manual PN 350 4.8063 1.27 1.5
--.EZN.Z. 1987-02-27T23:36:08.00 10.0 undecidable manual PN 71 4.7952 -0.07 2.5
--.PRK.Z. 1987-02-27T23:36:06.80 10.0 undecidable manual PN 78 4.6509 0.66 1.1
--.TR9.Z. 1987-02-27T23:36:06.60 10.0 undecidable manual PN 302 4.6287 0.79 1
--.MS1.Z. 1987-02-27T23:36:05.50 10.0 undecidable manual PN 313 4.5954 0.28 1.2
--.BRY.Z. 1987-02-27T23:36:04.20 10.0 positive manual PN 341 4.5288 -0.27 2.4
--.SGO.Z. 1987-02-27T23:36:04.00 10.0 undecidable manual PN 297 4.3512 2.05 0.3
--.IVA.Z. 1987-02-27T23:36:03.20 10.0 positive manual PN 354 4.3179 1.8 0.9
--.NKY.Z. 1987-02-27T23:36:02.20 10.0 positive manual PN 345 4.3623 0.15 2.5
--.MG9.Z. 1987-02-27T23:35:59.00 10.0 undecidable manual PN 293 4.0071 1.73 0.5
--.HCY.Z. 1987-02-27T23:35:58.40 10.0 positive manual PN 339 4.1181 -0.34 2.4
--.TTG.Z. 1987-02-27T23:35:56.80 10.0 positive manual PN 346 3.9405 0.47 2.3
--.BDV.Z. 1987-02-27T23:35:55.20 10.0 positive manual PN 341 3.885 -0.32 2.4
--.CDM.Z. 1987-02-27T23:35:55.50 10.0 undecidable manual PN 308 3.996 -1.6 0.6
--.MSI.Z. 1987-02-27T23:35:53.00 10.0 undecidable manual PN 264 3.7518 -0.8 1
--.BAI.Z. 1987-02-27T23:35:53.00 10.0 undecidable manual PN 313 3.663 0.44 1.2
--.SDA.Z. 1987-02-27T23:35:51.00 10.0 positive manual PN 348 3.5076 0.72 2.1
--.ULC.Z. 1987-02-27T23:35:50.20 10.0 positive manual PN 345 3.4854 0.08 2.5
--.TS9.Z. 1987-02-27T23:35:50.00 10.0 undecidable manual PN 289 3.2745 2.71 0.1
--.ORI.Z. 1987-02-27T23:35:49.50 10.0 undecidable manual PN 296 3.3522 1.28 0.7
--.GR9.Z. 1987-02-27T23:35:43.80 10.0 undecidable manual PN 274 3.0525 -0.33 1.2
--.ATH.Z. 1987-02-27T23:35:37.60 10.0 negative manual PN 100 2.7084 -1.8 0.9
--.LCI.Z. 1987-02-27T23:35:36.50 10.0 undecidable manual PN 315 2.4642 0.54 1.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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