Earthquake with magnitude of M 4.4 on date 21-02-1985 and time 06:21:37 (UTC) in region Macedonia [Land]

A magnitude M 4.4 earthquake occured in region: Macedonia [Land], on

  • 21-02-1985 06:21:37 (UTC)
  • 21-02-1985 07:21:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.5, 20.62 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 1985-02-21
06:21:37
41.5 20.62 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 2109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-21 06:21:37 ± 0.256
Latitude 41.50 ± 0.02
Longitude 20.62 ± 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 2109

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) 3090.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 84
Number of defining phases 84
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1
Epicentral distance of station closest to the epicenter (degree) 0.0021
Epicentral distance of station farthest from the epicenter (degree) 0.0909
Number of stations at which the event was observed 73
Number of stations from which data was used for origin computation 73
Magnitude information

M:4.4

Field Value
Value 4.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 2109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:30:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.DDS.Z. 1985-02-21T06:25:02.20 10.0 undecidable manual SN 305 0.0729 1.23 0.3
--.PAN.Z. 1985-02-21T06:25:02.70 10.0 undecidable manual SN 307 0.0729 1.41 0.3
--.CAE.Z. 1985-02-21T06:24:45.70 10.0 undecidable manual SN 310 0.0668 0.66 0.4
--.RCL.Z. 1985-02-21T06:24:45.90 10.0 undecidable manual SN 311 0.0665 1.66 0.2
--.PRG.Z. 1985-02-21T06:24:24.00 10.0 undecidable manual SN 287 0.0565 6.19 0
--.CM8.Z. 1985-02-21T06:24:08.10 10.0 undecidable manual SN 289 0.052 2.38 0.2
--.PO9.Z. 1985-02-21T06:24:08.50 10.0 undecidable manual SN 283 0.0521 2.24 0.3
--.STV.Z. 1985-02-21T06:24:05.50 10.0 undecidable manual PN? 290 0.0909 2.79 0
--.ENR.Z. 1985-02-21T06:24:03.00 10.0 undecidable manual PN 290 0.0903 1.23 0.7
--.ORO.Z. 1985-02-21T06:24:00.00 10.0 undecidable manual PN 298 0.0903 -1.7 0.5
--.ROB.Z. 1985-02-21T06:23:58.50 10.0 undecidable manual PN 291 0.0876 0.88 0.8
--.IMP.Z. 1985-02-21T06:23:57.50 10.0 undecidable manual PN 288 0.0868 1.11 0.8
--.VDL.Z. 1985-02-21T06:23:55.30 10.0 undecidable manual PN 305 0.0849 1.79 0.5
--.FIN.Z. 1985-02-21T06:23:53.00 10.0 undecidable manual PN 290 0.0853 -1.12 0.8
--.OSS.Z. 1985-02-21T06:23:50.20 10.0 undecidable manual PN 308 0.0822 0.87 0.9
--.SD1.Z. 1985-02-21T06:23:50.00 10.0 undecidable manual SN? 274 0.0458 0.54 0
--.BG1.Z. 1985-02-21T06:23:45.50 10.0 undecidable manual PN 302 0.0807 -1.62 0.6
--.VEA.Z. 1985-02-21T06:23:43.00 10.0 undecidable manual PN 296 0.0783 -0.38 1
--.BVT.Z. 1985-02-21T06:23:40.50 10.0 undecidable manual PN 294 0.0758 0.72 1
--.RNI.Z. 1985-02-21T06:23:40.30 10.0 undecidable manual PN 305 0.0763 -0.09 1.1
--.SAL.Z. 1985-02-21T06:23:38.00 10.0 undecidable manual PN 302 0.0754 -1.05 0.9
--.PAG.Z. 1985-02-21T06:23:37.30 10.0 undecidable manual PN 307 0.0748 -0.86 0.9
--.DDS.Z. 1985-02-21T06:23:34.20 10.0 undecidable manual PN 305 0.0729 -0.96 0.9
--.PAN.Z. 1985-02-21T06:23:34.50 10.0 undecidable manual PN 307 0.0729 -0.84 0.9
--.BS1.Z. 1985-02-21T06:23:34.50 10.0 undecidable manual SN 262 0.0397 1 0.7
--.BD1.Z. 1985-02-21T06:23:32.50 10.0 undecidable manual PN 292 0.07 1.69 0.6
--.PS9.Z. 1985-02-21T06:23:32.00 10.0 undecidable manual PN 290 0.0697 1.67 0.7
--.CTI.Z. 1985-02-21T06:23:31.50 10.0 undecidable manual PN 308 0.0712 -1.05 0.9
--.SGO.Z. 1985-02-21T06:23:28.00 10.0 undecidable manual SN 258 0.037 1.85 0.3
--.ZOU.Z. 1985-02-21T06:23:26.60 10.0 undecidable manual PN 315 0.0672 0.12 1.2
--.CAE.Z. 1985-02-21T06:23:25.00 10.0 undecidable manual PN 310 0.0668 -0.96 1
--.RCL.Z. 1985-02-21T06:23:25.00 10.0 undecidable manual PN 311 0.0665 -0.5 1.1
--.BOO.Z. 1985-02-21T06:23:23.30 10.0 undecidable manual PN 314 0.0652 -0.18 1.2
--.MPR.Z. 1985-02-21T06:23:23.00 10.0 undecidable manual PN 313 0.0653 -0.64 1.1
--.BUA.Z. 1985-02-21T06:23:22.60 10.0 undecidable manual PN 313 0.0645 0.16 1.2
--.RBL.Z. 1985-02-21T06:23:22.00 10.0 undecidable manual PN 316 0.0637 0.81 1
--.BAD.Z. 1985-02-21T06:23:21.60 10.0 undecidable manual PN 314 0.064 -0.1 1.2
--.COL.Z. 1985-02-21T06:23:19.80 10.0 undecidable manual PN 314 0.0628 -0.01 1.2
--.PRG.Z. 1985-02-21T06:23:18.00 10.0 undecidable manual PN 287 0.0565 7.76 0
--.DRE.Z. 1985-02-21T06:23:18.70 10.0 undecidable manual PN 315 0.0618 0.47 1.2
--.CH1.Z. 1985-02-21T06:23:17.00 10.0 undecidable manual PN 291 0.0605 0.68 1.1
--.VOY.Z. 1985-02-21T06:23:15.50 10.0 undecidable manual PN 315 0.0597 0.35 1.2
--.TRI.Z. 1985-02-21T06:23:13.00 10.0 undecidable manual PN 312 0.0585 -0.29 1.2
--.LJU.Z. 1985-02-21T06:23:11.30 10.0 undecidable manual PN 317 0.0569 0.52 1.2
--.CEY.Z. 1985-02-21T06:23:09.60 10.0 undecidable manual PN 315 0.0554 0.94 1.1
--.ORI.Z. 1985-02-21T06:23:09.50 10.0 undecidable manual SN 246 0.0312 -1.5 0.5
--.AS1.Z. 1985-02-21T06:23:07.50 10.0 undecidable manual PN 287 0.0548 -0.13 1.3
--.MNS.Z. 1985-02-21T06:23:06.50 10.0 undecidable manual PN 281 0.0537 0.63 1.2
--.AR1.Z. 1985-02-21T06:23:05.50 10.0 undecidable manual PN 291 0.0539 -0.83 1.1
--.PO9.Z. 1985-02-21T06:23:04.50 10.0 negative manual PN 283 0.0521 0.93 2.3
--.CM8.Z. 1985-02-21T06:23:02.50 10.0 undecidable manual PN 289 0.052 -0.76 1.2
--.AQU.Z. 1985-02-21T06:22:58.50 10.0 undecidable manual PN 281 0.0489 -0.06 1.4
--.SD1.Z. 1985-02-21T06:22:53.70 10.0 undecidable manual PN 274 0.0458 -0.17 1.3
--.OVO.Z. 1985-02-21T06:22:49.30 10.0 undecidable manual PN 263 0.0425 0.43 1.3
--.DUI.Z. 1985-02-21T06:22:48.50 10.0 positive manual PN 273 0.0414 1.27 2
--.SOR.Z. 1985-02-21T06:22:48.90 10.0 undecidable manual PN 261 0.0434 -1.28 0.9
--.SGG.Z. 1985-02-21T06:22:47.90 10.0 undecidable manual PN 270 0.042 -0.26 1.3
--.BS1.Z. 1985-02-21T06:22:46.00 10.0 positive manual PN 262 0.0397 1.34 2
--.SGO.Z. 1985-02-21T06:22:40.00 10.0 undecidable manual PN 258 0.037 -0.41 1.3
--.TR9.Z. 1985-02-21T06:22:39.30 10.0 undecidable manual PN 265 0.0366 -0.58 1.2
--.MMN.Z. 1985-02-21T06:22:36.60 10.0 undecidable manual PN 246 0.0346 -0.31 1.3
--.CSI.Z. 1985-02-21T06:22:34.70 10.0 undecidable manual PN 243 0.0333 -0.05 1.4
--.ROI.Z. 1985-02-21T06:22:34.20 10.0 undecidable manual PN 239 0.0326 0.41 2.7
--.ORI.Z. 1985-02-21T06:22:30.50 10.0 undecidable manual PN 246 0.0312 -1.17 1
--.BEO.Z. 1985-02-21T06:22:30.10 10.0 undecidable manual PN 357 0.0299 0.44 1.3
--.BAI.Z. 1985-02-21T06:22:22.00 10.0 undecidable manual PN 263 0.0255 -0.89 1.1
--.BRT.Z. 1985-02-21T06:22:20.00 10.0 undecidable manual PN 257 0.0241 -0.81 1.1
--.PE1.Z. 1985-02-21T06:22:17.00 10.0 undecidable manual PN 254 0.0225 -1.32 0.9
--.PLE.Z. 1985-02-21T06:22:14.00 10.0 undecidable manual PN 334 0.0184 1.95 0.6
--.BRY.Z. 1985-02-21T06:22:13.20 10.0 positive manual PN 313 0.0187 0.64 2.5
--.HCY.Z. 1985-02-21T06:22:09.00 10.0 undecidable manual PN 301 0.0165 -0.25 1.3
--.VAY.Z. 1985-02-21T06:22:07.00 10.0 positive manual PN 95 0.0132 2.78 0.7
--.BDV.Z. 1985-02-21T06:22:04.00 10.0 undecidable manual PN 301 0.0139 -1.23 1
--.IVA.Z. 1985-02-21T06:22:03.20 10.0 undecidable manual PN 338 0.0133 -1.05 1.1
--.VLO.Z. 1985-02-21T06:22:03.00 10.0 undecidable manual PN 219 0.0119 0.75 1.3
--.TTG.Z. 1985-02-21T06:22:00.50 10.0 negative manual PN 313 0.0123 -2.36 0.9
--.PVY.Z. 1985-02-21T06:21:58.00 10.0 negative manual PN 336 0.0108 -2.45 0.8
--.ULC.Z. 1985-02-21T06:21:55.50 10.0 undecidable manual PN 294 0.01 -3.9 0.1
--.SDA.Z. 1985-02-21T06:21:55.00 10.0 negative manual PG 302 0.0088 -2.27 1
--.KBN.Z. 1985-02-21T06:21:54.60 10.0 positive manual PG 171 0.0079 -0.73 2.1
--.SKO.Z. 1985-02-21T06:21:53.50 10.0 undecidable manual PG 51 0.007 0.06 1.4
--.OHR.Z. 1985-02-21T06:21:46.60 10.0 positive manual PG 160 0.0036 0.03 2.7
--.TIR.Z. 1985-02-21T06:21:46.00 10.0 positive manual PG! 255 0.0052 -3.88 0
--.PHP.Z. 1985-02-21T06:21:36.00 10.0 negative manual PG! 325 0.0021 -7.38 0
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download