Earthquake with magnitude of M 4.1 on date 21-02-1985 and time 06:35:52 (Italy) in region Macedonia [Land]

A magnitude M 4.1 earthquake occured in region: Macedonia [Land], on

  • 21-02-1985 05:35:52 (UTC)
  • 21-02-1985 06:35:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.5210, 20.5730 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
Bulletin
Rev1000
M 4.1 1985-02-21
05:35:52
41.521 20.573 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 2099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-21 05:35:52 ± 0.213
Latitude 41.5210 ± 0.0166
Longitude 20.5730 ± 0.0240
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2099

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) 2718.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 59
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.07593
Number of stations at which the event was observed 58
Number of stations from which data was used for origin computation 58
Magnitude information

M:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 2099
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(km) Takeoff_angle Residual Weight
--.RNI.Z. 1985-02-21T05:37:55.70 10.0 undecidable manual PN 305 8.4249 1.82 0.3
--.BVT.Z. 1985-02-21T05:37:55.00 10.0 undecidable manual PN 294 8.3805 1.71 0.3
--.SAL.Z. 1985-02-21T05:37:52.50 10.0 undecidable manual PN 302 8.325 -0.04 1.1
--.PAG.Z. 1985-02-21T05:37:51.10 10.0 undecidable manual PN 307 8.2584 -0.55 0.9
--.PAN.Z. 1985-02-21T05:37:48.30 10.0 undecidable manual PN 307 8.0586 -0.53 1
--.DDS.Z. 1985-02-21T05:37:47.90 10.0 undecidable manual PN 305 8.0364 -0.75 0.9
--.CTI.Z. 1985-02-21T05:37:45.00 10.0 undecidable manual PN 308 7.8477 -1.04 0.7
--.FO1.Z. 1985-02-21T05:37:42.00 10.0 undecidable manual PN 314 7.5369 0.3 1.1
--.ZOU.Z. 1985-02-21T05:37:40.50 10.0 undecidable manual PN 315 7.4148 0.53 1
--.SGO.Z. 1985-02-21T05:37:40.00 10.0 undecidable manual SN 258 4.0737 0.43 0.5
--.RCL.Z. 1985-02-21T05:37:39.20 10.0 undecidable manual PN 311 7.3371 0.21 1.1
--.CAE.Z. 1985-02-21T05:37:38.90 10.0 undecidable manual PN 310 7.3815 -0.55 1
--.MPR.Z. 1985-02-21T05:37:37.60 10.0 undecidable manual PN 313 7.2039 0.46 1.1
--.BOO.Z. 1985-02-21T05:37:37.10 10.0 undecidable manual PN 314 7.1928 0.12 1.1
--.BAD.Z. 1985-02-21T05:37:35.30 10.0 undecidable manual PN 314 7.0596 0.1 1.2
--.COL.Z. 1985-02-21T05:37:34.20 10.0 undecidable manual PN 314 6.9264 0.89 0.8
--.DRE.Z. 1985-02-21T05:37:32.30 10.0 undecidable manual PN 315 6.8154 0.58 1
--.VOY.Z. 1985-02-21T05:37:29.80 10.0 undecidable manual PN 315 6.5823 1.15 0.7
--.CH1.Z. 1985-02-21T05:37:29.00 10.0 undecidable manual PN 291 6.6711 -0.84 0.9
--.TRI.Z. 1985-02-21T05:37:27.00 10.0 undecidable manual PN 312 6.4491 0.21 1.2
--.LJU.Z. 1985-02-21T05:37:24.80 10.0 undecidable manual PN 318 6.2715 0.52 1.1
--.CEY.Z. 1985-02-21T05:37:23.70 10.0 undecidable manual PN 315 6.1161 1.54 1
--.AS1.Z. 1985-02-21T05:37:22.00 10.0 undecidable manual PN 287 6.0384 0.84 1
--.MNS.Z. 1985-02-21T05:37:21.00 10.0 undecidable manual PN 280 5.9163 1.57 0.5
--.AR1.Z. 1985-02-21T05:37:19.50 10.0 undecidable manual PN 291 5.9496 -0.34 1.2
--.PO9.Z. 1985-02-21T05:37:18.00 10.0 undecidable manual PN 283 5.7498 0.88 1
--.CM8.Z. 1985-02-21T05:37:15.60 10.0 undecidable manual PN 289 5.7276 -1.18 0.8
--.AQU.Z. 1985-02-21T05:37:13.00 10.0 undecidable manual PN 281 5.3835 0.88 1
--.SD1.Z. 1985-02-21T05:37:07.50 10.0 undecidable manual PN 274 5.0505 0.04 1.4
--.SOR.Z. 1985-02-21T05:37:02.70 10.0 undecidable manual PN 260 4.7841 -1.16 0.8
--.OVO.Z. 1985-02-21T05:37:02.70 10.0 undecidable manual PN 263 4.6953 0.17 1.4
--.SGG.Z. 1985-02-21T05:37:01.60 10.0 undecidable manual PN 270 4.6287 -0.17 1.5
--.DUI.Z. 1985-02-21T05:37:01.00 10.0 undecidable manual PN 273 4.5621 0.17 1.5
--.BS1.Z. 1985-02-21T05:36:59.50 10.0 undecidable manual PN 261 4.3845 1.17 0.8
--.SGO.Z. 1985-02-21T05:36:54.00 10.0 undecidable manual PN 258 4.0737 -0.12 1.5
--.TR9.Z. 1985-02-21T05:36:52.80 10.0 undecidable manual PN 264 4.0293 -0.72 1.2
--.MMN.Z. 1985-02-21T05:36:50.30 10.0 undecidable manual PN 246 3.8295 -0.41 1.4
--.ROI.Z. 1985-02-21T05:36:47.40 10.0 undecidable manual PN 238 3.6075 -0.26 1.4
--.ORI.Z. 1985-02-21T05:36:46.00 10.0 undecidable manual PN 246 3.441 0.53 1.3
--.VLS.Z. 1985-02-21T05:36:46.00 10.0 undecidable manual PN 179 3.33 2.05 0.3
--.BEO.Z. 1985-02-21T05:36:43.80 10.0 undecidable manual PN 358 3.2856 0.44 1.4
--.BRT.Z. 1985-02-21T05:36:35.50 10.0 undecidable manual PN 256 2.6529 0.98 1
--.BAI.Z. 1985-02-21T05:36:35.00 10.0 undecidable manual PN 262 2.7972 -1.55 0.6
--.PE1.Z. 1985-02-21T05:36:30.50 10.0 undecidable manual PN 254 2.4753 -1.55 0.6
--.PLE.Z. 1985-02-21T05:36:27.40 10.0 undecidable manual PN 334 2.0091 1.8 0.4
--.BRY.Z. 1985-02-21T05:36:27.50 10.0 undecidable manual PN 313 2.0313 1.45 0.6
--.HCY.Z. 1985-02-21T05:36:22.70 10.0 undecidable manual PN 301 1.7871 -0.05 1.5
--.KZN.Z. 1985-02-21T05:36:20.80 10.0 positive manual PN 142 1.5096 1.95 0.6
--.IVA.Z. 1985-02-21T05:36:17.20 10.0 undecidable manual PN 339 1.443 -0.63 1.3
--.BDV.Z. 1985-02-21T05:36:17.00 10.0 undecidable manual PN 300 1.4985 -1.73 0.4
--.VLO.Z. 1985-02-21T05:36:16.90 10.0 undecidable manual PN 217 1.3209 0.58 1.3
--.TTG.Z. 1985-02-21T05:36:14.20 10.0 negative manual PN 313 1.332 -2.16 0.5
--.PVY.Z. 1985-02-21T05:36:12.00 10.0 positive manual PN 337 1.1544 -2.02 0.6
--.SDA.Z. 1985-02-21T05:36:09.80 10.0 negative manual PG 301 0.9324 -0.76 2.4
--.KBN.Z. 1985-02-21T05:36:08.60 10.0 positive manual PG 169 0.9102 -1.4 1.3
--.SKO.Z. 1985-02-21T05:36:07.30 10.0 positive manual PG 54 0.777 -0.43 2.7
--.OHR.Z. 1985-02-21T05:36:00.40 10.0 positive manual PG 157 0.444 -0.94 2
--.TIR.Z. 1985-02-21T05:36:00.00 10.0 undecidable manual PG! 252 0.555 -3.49 0
--.PHP.Z. 1985-02-21T05:35:50.60 10.0 positive manual PG! 329 0.1887 -6.11 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download