Earthquake with magnitude of M 4.1 on date 21-05-1985 and time 23:27:02 (UTC) in region Confine Grecia Albania (GRECIA, ALBANIA)

A magnitude M 4.1 earthquake occured in region: Confine Grecia Albania (GRECIA, ALBANIA), on

  • 21-05-1985 23:27:02 (UTC)
  • 22-05-1985 01:27:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.88, 20.39 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 4.1 1985-05-21
23:27:02
39.88 20.39 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 7029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-21 23:27:02 ± 0.491
Latitude 39.88 ± 0.04
Longitude 20.39 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7029

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) 5464.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
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) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.08297
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitude information

M:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 7029
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
--.SAL.Z. 1985-05-21T23:30:51.00 10.0 undecidable manual SN 311 0.083 -0.84 0.3
--.TRI.Z. 1985-05-21T23:30:14.00 10.0 undecidable manual SN 322 0.0682 1.18 0.3
--.CM2.Z. 1985-05-21T23:29:44.50 10.0 undecidable manual SN 303 0.0571 0.98 0.5
--.SAL.Z. 1985-05-21T23:29:15.00 10.0 undecidable manual PN 311 0.083 0.27 1.1
--.PA1.Z. 1985-05-21T23:29:13.50 10.0 undecidable manual SN 237 0.0463 -1.37 0.3
--.FO1.Z. 1985-05-21T23:29:08.00 10.0 undecidable manual PN 322 0.0783 0.5 1
--.CTI.Z. 1985-05-21T23:29:08.50 10.0 undecidable manual PN 316 0.0798 -1.44 0.5
--.PS9.Z. 1985-05-21T23:29:03.80 10.0 undecidable manual PN 300 0.0746 1.92 0.2
--.FIR.Z. 1985-05-21T23:28:55.00 10.0 undecidable manual PN 302 0.0704 -0.64 1
--.TRI.Z. 1985-05-21T23:28:52.20 10.0 undecidable manual PN 322 0.0682 0.01 1.3
--.CH1.Z. 1985-05-21T23:28:48.80 10.0 undecidable manual PN 303 0.0658 0.2 1.3
--.AS1.Z. 1985-05-21T23:28:39.00 10.0 undecidable manual PN 301 0.0594 0.2 1.3
--.PO9.Z. 1985-05-21T23:28:35.00 10.0 undecidable manual PN 297 0.0559 1.65 0.4
--.CM2.Z. 1985-05-21T23:28:34.70 10.0 undecidable manual PN 303 0.0571 -0.58 1.2
--.AM1.Z. 1985-05-21T23:28:32.50 10.0 undecidable manual PN 307 0.0562 -1.41 0.6
--.AQU.Z. 1985-05-21T23:28:29.00 10.0 undecidable manual PN 297 0.0523 1.13 0.8
--.ALP.Z. 1985-05-21T23:28:28.50 10.0 positive manual PN 301 0.0529 -0.34 1.4
--.GIB.Z. 1985-05-21T23:28:22.00 10.0 undecidable manual PN 250 0.0476 1.2 0.8
--.SD1.Z. 1985-05-21T23:28:21.50 10.0 undecidable manual PN 292 0.0477 0.62 1.3
--.MSC.Z. 1985-05-21T23:28:17.10 10.0 undecidable manual PN 286 0.0454 -0.28 1.5
--.PA1.Z. 1985-05-21T23:28:16.00 10.0 undecidable manual PN 237 0.0463 -2.74 0.1
--.DUI.Z. 1985-05-21T23:28:15.50 10.0 undecidable manual PN 293 0.0434 1.13 0.9
--.SGG.Z. 1985-05-21T23:28:15.00 10.0 undecidable manual PN 289 0.0431 1.01 1
--.OVO.Z. 1985-05-21T23:28:13.20 10.0 undecidable manual PN 283 0.0419 1.13 0.9
--.SOR.Z. 1985-05-21T23:28:12.80 10.0 negative manual PN 280 0.042 0.56 2.8
--.BS1.Z. 1985-05-21T23:28:08.00 10.0 undecidable manual PN 283 0.0389 0.41 1.5
--.TR9.Z. 1985-05-21T23:28:04.30 10.0 negative manual PN 287 0.0367 0.02 3.2
--.SGO.Z. 1985-05-21T23:28:02.00 10.0 undecidable manual PN 281 0.0354 -0.14 1.6
--.MS1.Z. 1985-05-21T23:27:59.50 10.0 undecidable manual PN 299 0.0344 -1.13 0.9
--.LCI.Z. 1985-05-21T23:27:56.50 10.0 undecidable manual SN 285 0.0161 1.2 0.3
--.CSI.Z. 1985-05-21T23:27:50.90 10.0 undecidable manual PN 269 0.0283 -0.38 1.5
--.ROI.Z. 1985-05-21T23:27:48.60 10.0 undecidable manual PN 264 0.0266 -0.06 1.6
--.BRT.Z. 1985-05-21T23:27:43.80 10.0 undecidable manual PN 292 0.0239 -0.82 1.2
--.VLO.Z. 1985-05-21T23:27:32.00 10.0 undecidable manual SG 310 0.0081 -0.85 0.5
--.LCI.Z. 1985-05-21T23:27:32.50 10.0 undecidable manual PN 285 0.0161 -0.3 1.5
--.KZN.Z. 1985-05-21T23:27:24.60 10.0 undecidable manual PN 67 0.0102 0.86 1.1
--.VLO.Z. 1985-05-21T23:27:17.50 10.0 undecidable manual PG 310 0.0081 -2.34 0.1
--.KBN.Z. 1985-05-21T23:27:16.80 10.0 undecidable manual PG 21 0.0071 -1.18 0.9
--.SRN.Z. 1985-05-21T23:27:07.40 10.0 undecidable manual PG 269 0.0027 -1.3 0.7
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