Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.3 on date 12-02-1985 and time 17:50:01 (UTC) in region 5 km SE Belluno (BL)

A magnitude Md 2.3 earthquake occured in region: 5 km SE Belluno (BL), on

  • 12-02-1985 17:50:01 (UTC)
  • 12-02-1985 18:50:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.1180, 12.2680 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Belluno BL 5 35870 35870
Ponte nelle Alpi BL 7 8363 44233
Limana BL 7 5209 49442
Alpago BL 9 6994 56436
Soverzene BL 10 389 56825
Chies d'Alpago BL 11 1377 58202
Trichiana BL 12 4868 63070
Tambre BL 12 1371 64441
Sedico BL 13 9997 74438
Fregona TV 13 3013 77451
Revine Lago TV 14 2208 79659
Vittorio Veneto TV 14 28232 107891
Sospirolo BL 15 3140 111031
Mel BL 16 5984 117015
Tarzo TV 16 4399 121414
Longarone BL 17 5359 126773
Santa Giustina BL 18 6807 133580
Cappella Maggiore TV 18 4710 138290
Sarmede TV 18 3086 141376
San Gregorio nelle Alpi BL 19 1613 142989
Cison di Valmarino TV 19 2647 145636
Erto e Casso PN 20 387 146023

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Pordenone (51229 inhabitants)
50 Km N of Treviso (83731 inhabitants)
75 Km W of Udine (99169 inhabitants)
76 Km N of Venezia (263352 inhabitants)
82 Km SE of Bolzano (106441 inhabitants)
84 Km NE of Vicenza (112953 inhabitants)
85 Km NE of Padova (210401 inhabitants)
89 Km E of Trento (117317 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 2.3
M 2.2 		1985-02-12
17:50:01		 46.118 12.268 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 1589
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-12 17:50:01 ± 0.324
Latitude 46.1180 ± 0.0169
Longitude 12.2680 ± 0.0249
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 1589

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) 2682.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00858
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 1589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:06:40

M:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 1589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.DRE.Z. 1985-02-12T17:50:36.60 10.0 undecidable manual SG 86 0.9546 2.33 0
--.ZOU.Z. 1985-02-12T17:50:24.80 10.0 undecidable manual SG 47 0.6438 0.13 0.8
--.BAD.Z. 1985-02-12T17:50:24.80 10.0 undecidable manual SG 79 0.6882 -0.84 0.3
--.BOO.Z. 1985-02-12T17:50:22.20 10.0 undecidable manual SG 70 0.5994 -1.02 0.2
--.FO1.Z. 1985-02-12T17:50:22.50 10.0 undecidable manual SG 36 0.5883 -0.17 0.6
--.DRE.Z. 1985-02-12T17:50:21.50 10.0 undecidable manual PG 86 0.9546 0.98 0.3
--.MPR.Z. 1985-02-12T17:50:20.00 10.0 undecidable manual SG 75 0.5106 -0.13 0.6
--.ZOU.Z. 1985-02-12T17:50:15.10 10.0 undecidable manual PG 47 0.6438 0.13 1.3
--.BAD.Z. 1985-02-12T17:50:15.20 10.0 undecidable manual PG 79 0.6882 -0.34 1.1
--.FO1.Z. 1985-02-12T17:50:14.50 10.0 undecidable manual PG 36 0.5883 0.68 0.8
--.BOO.Z. 1985-02-12T17:50:13.70 10.0 undecidable manual PG 70 0.5994 -0.44 1.1
--.MPR.Z. 1985-02-12T17:50:12.30 10.0 undecidable manual PG 75 0.5106 -0.05 1.5
--.RCL.Z. 1985-02-12T17:50:11.70 10.0 undecidable manual SG 81 0.2664 -0.62 0.5
--.CTI.Z. 1985-02-12T17:50:10.50 10.0 undecidable manual PG 261 0.4329 -0.38 1.2
--.CAE.Z. 1985-02-12T17:50:08.50 10.0 undecidable manual SG 133 0.1554 -0.34 0.8
--.RCL.Z. 1985-02-12T17:50:07.80 10.0 negative manual PG 81 0.2664 -0.05 3
--.CAE.Z. 1985-02-12T17:50:06.00 10.0 positive manual PG 133 0.1554 0.16 2.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download