ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Md 2.0 on date 16-02-1985 and time 08:21:52 (Italy) in region 6 km NE Lusevera (UD)

A magnitude Md 2.0 earthquake occured in region: 6 km NE Lusevera (UD), on

  • 16-02-1985 07:21:52 (UTC)
  • 16-02-1985 08:21:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.31, 13.31 at 12 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
Lusevera UD 6 643 643
Resia UD 7 1033 1676
Taipana UD 7 636 2312
Chiusaforte UD 11 672 2984
Resiutta UD 11 309 3293
Montenars UD 12 538 3831
Tarcento UD 13 9012 12843
Nimis UD 13 2740 15583
Venzone UD 13 2117 17700
Gemona del Friuli UD 14 10964 28664
Attimis UD 14 1805 30469
Magnano in Riviera UD 14 2336 32805
Moggio Udinese UD 14 1714 34519
Artegna UD 14 2885 37404
Dogna UD 15 175 37579
Bordano UD 16 754 38333
Treppo Grande UD 18 1708 40041
Faedis UD 18 2945 42986
Amaro UD 18 823 43809
Cassacco UD 18 2938 46747
Tricesimo UD 18 7600 54347
Buja UD 18 6563 60910
Trasaghis UD 18 2227 63137
Reana del Rojale UD 19 4966 68103
Osoppo UD 19 2936 71039

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of Udine (99169 inhabitants)
64 Km NE of Pordenone (51229 inhabitants)
82 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 2.0
M 2.1
1985-02-16
07:21:52
46.31 13.31 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 1819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-16 07:21:52 ± 0.111
Latitude 46.31 ± 0.01
Longitude 13.31 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 1819

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) 1058.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.0106
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 1819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:06:51

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 1819
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 Takeoff_angle Residual Weight
--.CTI.Z. 1985-02-16T07:22:30.50 10.0 undecidable manual SN 257 0.0106 -0.18 0.2
--.CTI.Z. 1985-02-16T07:22:14.50 10.0 undecidable manual PN 257 0.0106 -0.02 0.7
--.FO1.Z. 1985-02-16T07:22:09.00 10.0 undecidable manual SG 307 0.0041 -0.17 0.4
--.ZOU.Z. 1985-02-16T07:22:05.10 10.0 undecidable manual SG 316 0.003 -0.11 0.8
--.DRE.Z. 1985-02-16T07:22:03.10 10.0 undecidable manual SG 120 0.0023 0.11 0.9
--.MPR.Z. 1985-02-16T07:22:01.70 10.0 undecidable manual SG 252 0.002 -0.19 0.5
--.FO1.Z. 1985-02-16T07:22:01.50 10.0 undecidable manual PG 307 0.0041 -0.6 0.2
--.COL.Z. 1985-02-16T07:22:00.20 10.0 undecidable manual SG 165 0.0016 -0.14 0.8
--.ZOU.Z. 1985-02-16T07:22:00.30 10.0 negative manual PG 316 0.003 0.48 0.9
--.BUA.Z. 1985-02-16T07:21:59.00 10.0 undecidable manual SG 234 0.0014 -0.57 0.1
--.BOO.Z. 1985-02-16T07:21:59.10 10.0 undecidable manual SG 273 0.0013 -0.05 0.9
--.DRE.Z. 1985-02-16T07:21:58.70 10.0 undecidable manual PG 120 0.0023 0.17 1.3
--.MPR.Z. 1985-02-16T07:21:58.00 10.0 undecidable manual PG 252 0.002 0.1 1.4
--.COL.Z. 1985-02-16T07:21:57.10 10.0 undecidable manual PG 165 0.0016 0.09 2.9
--.BAD.Z. 1985-02-16T07:21:57.20 10.0 undecidable manual SG 211 0.0007 -0.37 0.4
--.RBL.Z. 1985-02-16T07:21:57.00 10.0 undecidable manual PG 53 0.0019 -0.63 0.2
--.BUA.Z. 1985-02-16T07:21:56.40 10.0 undecidable manual PG 234 0.0014 -0.16 1.3
--.BOO.Z. 1985-02-16T07:21:56.50 10.0 positive manual PG 273 0.0013 0.18 2.5
--.BAD.Z. 1985-02-16T07:21:55.60 10.0 positive manual PG 211 0.0007 0.19 2.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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