Earthquake with magnitude of Md 3.1 on date 20-09-1989 and time 08:55:23 (Italy) in region Greece [Land]

A magnitude Md 3.1 earthquake occured in region: Greece [Land], on

  • 20-09-1989 06:55:23 (UTC)
  • 20-09-1989 08:55:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.4720, 20.7170 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
Md 3.1
M 3.7
1989-09-20
06:55:23
39.472 20.717 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 99819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-20 06:55:23 ± 0.536
Latitude 39.4720 ± 0.0276
Longitude 20.7170 ± 0.0451
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99819

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) 4940.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 247
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
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) 0.00615
Epicentral distance of station farthest from the epicenter (degree) 0.07423
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 99819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:33:14

M:3.7

Field Value
Value 3.7
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 99819
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
--.VOY.Z. 1989-09-20T06:58:51.40 10.0 undecidable manual SN 324 8.2362 0.96 0.3
--.VBY.Z. 1989-09-20T06:58:27.50 10.0 undecidable manual SN 327 7.2372 0.83 0.3
--.VOY.Z. 1989-09-20T06:57:21.00 10.0 undecidable manual PN 324 8.2362 -2.14 0.2
--.MT9.Z. 1989-09-20T06:57:18.70 10.0 undecidable manual SN 281 4.3956 -0.33 0.6
--.MGR.Z. 1989-09-20T06:57:11.00 10.0 undecidable manual SN 280 4.0071 1.1 0.4
--.VBY.Z. 1989-09-20T06:57:07.50 10.0 undecidable manual PN 327 7.2372 -1.91 0.3
--.BRY.Z. 1989-09-20T06:57:04.30 10.0 undecidable manual SN 334 3.7962 -0.32 0.7
--.NKY.Z. 1989-09-20T06:57:01.00 10.0 undecidable manual SN 338 3.5742 1.51 0.3
--.HCY.Z. 1989-09-20T06:56:54.00 10.0 undecidable manual SN 330 3.4077 -1.5 0.3
--.PVY.Z. 1989-09-20T06:56:52.50 10.0 undecidable manual SN! 349 3.1635 2.74 0
--.TTG.Z. 1989-09-20T06:56:50.00 10.0 undecidable manual SN 339 3.1413 0.66 0.6
--.BDV.Z. 1989-09-20T06:56:48.50 10.0 undecidable manual SN 333 3.1413 -0.79 0.6
--.SGG.Z. 1989-09-20T06:56:43.30 10.0 undecidable manual PN 293 5.1726 2.17 0.2
--.SOR.Z. 1989-09-20T06:56:38.10 10.0 undecidable manual PN 284 4.995 -0.56 1.4
--.ULC.Z. 1989-09-20T06:56:37.00 10.0 undecidable manual SN 335 2.7195 -2.19 0.1
--.MT9.Z. 1989-09-20T06:56:30.90 10.0 undecidable manual PN 281 4.3956 0.54 1.4
--.SGO.Z. 1989-09-20T06:56:29.00 10.0 undecidable manual PN 285 4.2624 0.32 1.6
--.MS1.Z. 1989-09-20T06:56:26.50 10.0 undecidable manual PN 302 4.2513 -1.85 0.5
--.MGR.Z. 1989-09-20T06:56:25.00 10.0 undecidable manual PN 280 4.0071 -0.09 1.7
--.SOI.Z. 1989-09-20T06:56:24.00 10.0 undecidable manual PN 249 3.885 0.65 1.4
--.FE2.Z. 1989-09-20T06:56:21.22 10.0 undecidable manual PN 249 3.8739 -1.99 0.4
--.CDM.Z. 1989-09-20T06:56:21.50 10.0 undecidable manual PN 296 3.7407 0.1 1.8
--.BRY.Z. 1989-09-20T06:56:21.00 10.0 undecidable manual PN 334 3.7962 -1.04 1.2
--.NKY.Z. 1989-09-20T06:56:19.60 10.0 undecidable manual PN 338 3.5742 0.52 1.6
--.CZI.Z. 1989-09-20T06:56:19.32 10.0 undecidable manual PN 266 3.5409 0.65 1.5
--.CSI.Z. 1989-09-20T06:56:18.00 10.0 undecidable manual PN 276 3.4188 1.14 1
--.GRI.Z. 1989-09-20T06:56:17.00 10.0 undecidable manual PN 259 3.3855 0.5 1.6
--.HCY.Z. 1989-09-20T06:56:15.20 10.0 undecidable manual PN 330 3.4077 -1.58 0.7
--.PVY.Z. 1989-09-20T06:56:14.20 10.0 undecidable manual PN 349 3.1635 0.74 1.4
--.TDS.Z. 1989-09-20T06:56:14.80 10.0 undecidable manual PN 274 3.3744 -1.51 0.8
--.TTG.Z. 1989-09-20T06:56:13.90 10.0 undecidable manual PN 339 3.1413 0.68 1.5
--.BDV.Z. 1989-09-20T06:56:12.50 10.0 undecidable manual PN 333 3.1413 -0.69 1.6
--.VLO.Z. 1989-09-20T06:56:08.40 10.0 undecidable manual SN 316 1.3542 1.55 0.2
--.ULC.Z. 1989-09-20T06:56:07.00 10.0 undecidable manual PN 335 2.7195 -0.36 1.8
--.PUK.Z. 1989-09-20T06:56:07.00 10.0 undecidable manual PN 346 2.6307 0.78 1.4
--.KBN.Z. 1989-09-20T06:56:02.00 10.0 undecidable manual SN 1 1.1544 0.24 0.7
--.PHP.Z. 1989-09-20T06:56:01.80 10.0 undecidable manual PN 354 2.22 1.33 0.8
--.LCI.Z. 1989-09-20T06:56:00.00 10.0 undecidable manual PN 293 2.1645 0.22 1.8
--.TIR.Z. 1989-09-20T06:55:58.00 10.0 undecidable manual PN 340 1.9758 0.84 1.3
--.VLO.Z. 1989-09-20T06:55:48.70 10.0 undecidable manual PN 316 1.3542 0.01 1.8
--.SRN.Z. 1989-09-20T06:55:47.60 10.0 undecidable manual SG 306 0.6882 -0.2 0.7
--.KBN.Z. 1989-09-20T06:55:45.50 10.0 undecidable manual PN 1 1.1544 -0.25 1.8
--.SRN.Z. 1989-09-20T06:55:37.10 10.0 undecidable manual PG 306 0.6882 -0.59 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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