Earthquake with magnitude of Md 2.9 on date 03-12-1987 and time 20:34:27 (Italy) in region 3 km N Alpago (BL)

A magnitude Md 2.9 earthquake occured in region: 3 km N Alpago (BL), on

  • 03-12-1987 19:34:27 (UTC)
  • 03-12-1987 20:34:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.19, 12.35 at 0 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Alpago BL 3 6994 6994
Soverzene BL 4 389 7383
Chies d'Alpago BL 4 1377 8760
Ponte nelle Alpi BL 4 8363 17123
Tambre BL 9 1371 18494
Longarone BL 9 5359 23853
Erto e Casso PN 10 387 24240
Belluno BL 12 35870 60110
Cimolais PN 13 397 60507
Claut PN 15 956 61463
Ospitale di Cadore BL 15 292 61755
Barcis PN 16 256 62011
Limana BL 17 5209 67220

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of Pordenone (51229 inhabitants)
59 Km N of Treviso (83731 inhabitants)
70 Km W of Udine (99169 inhabitants)
83 Km E of Bolzano (106441 inhabitants)
84 Km N of Venezia (263352 inhabitants)
95 Km NE of Padova (210401 inhabitants)
95 Km NE of Vicenza (112953 inhabitants)
96 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
Rev 1000 Md 2.9
ML-VAX 2.4
1987-12-03
19:34:27
46.19 12.35 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 59239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-12-03 19:34:27 ± 0.415
Latitude 46.19 ± 0.03
Longitude 12.35 ± 0.03
Depth (km) 0 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 59239

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) 3582.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.0017
Epicentral distance of station farthest from the epicenter (degree) 0.03359
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 59239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:56:37

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 59239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ZST.Z. 1987-12-03T19:35:30.20 10.0 undecidable manual PN 57 0.0336 3.8 0
--.SAL.Z. 1987-12-03T19:35:12.90 10.0 undecidable manual SN 245 0.0125 -1.05 0.3
--.TRI.Z. 1987-12-03T19:35:05.31 10.0 undecidable manual SG 115 0.0098 -1.23 0.3
--.RBL.Z. 1987-12-03T19:34:58.96 10.0 undecidable manual SG 73 0.0079 -0.52 0.5
--.SAL.Z. 1987-12-03T19:34:54.72 10.0 undecidable manual PN 245 0.0125 0.38 1.1
--.KBA.Z. 1987-12-03T19:34:51.10 10.0 positive manual PG 37 0.01 0.65 2.3
--.TRI.Z. 1987-12-03T19:34:50.70 10.0 undecidable manual PG 115 0.0098 0.01 1.3
--.CTI.Z. 1987-12-03T19:34:46.15 10.0 undecidable manual SG 253 0.0045 -0.89 0.4
--.RBL.Z. 1987-12-03T19:34:46.30 10.0 undecidable manual PG 73 0.0079 0.3 1.4
--.FVI.Z. 1987-12-03T19:34:45.61 10.0 undecidable manual SG 36 0.0045 -1.13 0.4
--.BAD.Z. 1987-12-03T19:34:40.30 10.0 undecidable manual PG 85 0.0055 -0.94 1.1
--.BUA.Z. 1987-12-03T19:34:39.30 10.0 undecidable manual PG 87 0.0048 -0.17 1.4
--.CTI.Z. 1987-12-03T19:34:38.86 10.0 undecidable manual PG 253 0.0045 0.05 1.5
--.FVI.Z. 1987-12-03T19:34:38.23 10.0 undecidable manual PG 36 0.0045 -0.41 1.4
--.BOO.Z. 1987-12-03T19:34:38.70 10.0 undecidable manual PG 76 0.0048 -0.72 1.2
--.RCL.Z. 1987-12-03T19:34:33.00 10.0 undecidable manual PG 99 0.0019 0.71 1.2
--.CAE.Z. 1987-12-03T19:34:32.70 10.0 undecidable manual PG 162 0.0017 0.77 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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