Earthquake with magnitude of Md 2.1 on date 02-04-1985 and time 15:36:48 (Italy) in region 5 km SE Venzone (UD)

A magnitude Md 2.1 earthquake occured in region: 5 km SE Venzone (UD), on

  • 02-04-1985 13:36:48 (UTC)
  • 02-04-1985 15:36:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.31, 13.2 at 8 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
Venzone UD 5 2117 2117
Gemona del Friuli UD 6 10964 13081
Montenars UD 6 538 13619
Bordano UD 7 754 14373
Lusevera UD 7 643 15016
Artegna UD 8 2885 17901
Magnano in Riviera UD 9 2336 20237
Trasaghis UD 10 2227 22464
Resiutta UD 10 309 22773
Tarcento UD 11 9012 31785
Osoppo UD 11 2936 34721
Amaro UD 11 823 35544
Resia UD 11 1033 36577
Moggio Udinese UD 11 1714 38291
Buja UD 12 6563 44854
Taipana UD 13 636 45490
Nimis UD 13 2740 48230
Treppo Grande UD 13 1708 49938
Cavazzo Carnico UD 14 1052 50990
Chiusaforte UD 14 672 51662
Cassacco UD 15 2938 54600
Attimis UD 16 1805 56405
Tricesimo UD 16 7600 64005
Colloredo di Monte Albano UD 16 2223 66228
Majano UD 17 5945 72173
Tolmezzo UD 18 10440 82613
Verzegnis UD 18 863 83476
Reana del Rojale UD 18 4966 88442
Dogna UD 18 175 88617
Forgaria nel Friuli UD 20 1786 90403

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of Udine (99169 inhabitants)
57 Km NE of Pordenone (51229 inhabitants)
86 Km NW of Trieste (204420 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 2.1 1985-04-02
13:36:48
46.31 13.2 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 3939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-02 13:36:48 ± 0.166
Latitude 46.31 ± 0.02
Longitude 13.20 ± 0.02
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3939

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) 2248.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00988
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 3939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CTI.Z. 1985-04-02T13:37:11.00 10.0 undecidable manual PN 256 0.0099 0.91 0
--.FO1.Z. 1985-04-02T13:37:03.20 10.0 undecidable manual SG 314 0.0036 -0.64 0.1
--.RBL.Z. 1985-04-02T13:37:01.00 10.0 undecidable manual SG 62 0.0025 0.87 0
--.FO1.Z. 1985-04-02T13:36:57.20 10.0 undecidable manual PG 314 0.0036 -0.23 0.9
--.RBL.Z. 1985-04-02T13:36:55.00 10.0 undecidable manual PG 62 0.0025 -0.29 0.9
--.DRE.Z. 1985-04-02T13:36:55.70 10.0 undecidable manual PG 113 0.003 -0.51 0.5
--.MPR.Z. 1985-04-02T13:36:55.10 10.0 undecidable manual SG 244 0.0014 -0.34 0.5
--.COL.Z. 1985-04-02T13:36:53.60 10.0 negative manual PG 144 0.0019 -0.16 2.3
--.BAD.Z. 1985-04-02T13:36:53.00 10.0 undecidable manual SG 155 0.0006 0.1 0.7
--.MPR.Z. 1985-04-02T13:36:52.40 10.0 positive manual PG 244 0.0014 -0.18 2.2
--.BOO.Z. 1985-04-02T13:36:52.40 10.0 undecidable manual SG 279 0.0006 -0.18 0.7
--.BAD.Z. 1985-04-02T13:36:51.30 10.0 positive manual PG 155 0.0006 0.19 2.2
--.BOO.Z. 1985-04-02T13:36:51.20 10.0 negative manual PG 279 0.0006 0.27 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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