ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of M 2.6 on date 14-02-1985 and time 02:40:54 (Italy) in region 4 km SW Resia (UD)

A magnitude M 2.6 earthquake occured in region: 4 km SW Resia (UD), on

  • 14-02-1985 01:40:54 (UTC)
  • 14-02-1985 02:40:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.34, 13.28 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Resia UD 4 1033 1033
Resiutta UD 8 309 1342
Chiusaforte UD 8 672 2014
Lusevera UD 9 643 2657
Moggio Udinese UD 10 1714 4371
Venzone UD 11 2117 6488
Taipana UD 11 636 7124
Montenars UD 12 538 7662
Dogna UD 12 175 7837
Gemona del Friuli UD 13 10964 18801
Bordano UD 14 754 19555
Artegna UD 15 2885 22440
Tarcento UD 15 9012 31452
Magnano in Riviera UD 15 2336 33788
Amaro UD 15 823 34611
Nimis UD 16 2740 37351
Attimis UD 17 1805 39156
Trasaghis UD 17 2227 41383
Osoppo UD 18 2936 44319
Pontebba UD 19 1433 45752
Cavazzo Carnico UD 19 1052 46804
Buja UD 19 6563 53367
Treppo Grande UD 19 1708 55075
Cassacco UD 20 2938 58013

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of Udine (99169 inhabitants)
64 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 M 2.6 1985-02-14
01:40:54
46.34 13.28 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 1659
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-14 01:40:54 ± 0.162
Latitude 46.34 ± 0.01
Longitude 13.28 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 1659

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) 1439.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00267
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

M:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 1659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:39:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ZOU.Z. 1985-02-14T01:41:06.70 10.0 undecidable manual SG 315 0.0027 0.67 0
--.DRE.Z. 1985-02-14T01:41:05.60 10.0 undecidable manual SG 123 0.0027 -0.36 0.3
--.MPR.Z. 1985-02-14T01:41:03.30 10.0 undecidable manual SG 243 0.002 -0.25 0.5
--.COL.Z. 1985-02-14T01:41:03.60 10.0 undecidable manual SG 161 0.0019 0.3 0.3
--.BUA.Z. 1985-02-14T01:41:02.00 10.0 undecidable manual SG 221 0.0015 0.44 0.1
--.ZOU.Z. 1985-02-14T01:41:01.10 10.0 positive manual PG 315 0.0027 -0.01 2.3
--.BAD.Z. 1985-02-14T01:41:00.00 10.0 undecidable manual SG 194 0.0009 0.26 0.5
--.DRE.Z. 1985-02-14T01:41:00.80 10.0 undecidable manual PG 123 0.0027 -0.26 0.7
--.MPR.Z. 1985-02-14T01:40:59.40 10.0 undecidable manual PG 243 0.002 -0.27 0.8
--.COL.Z. 1985-02-14T01:40:59.70 10.0 undecidable manual PG 161 0.0019 0.17 1.1
--.BOO.Z. 1985-02-14T01:40:59.90 10.0 undecidable manual SG 260 0.0011 -0.45 0.2
--.BUA.Z. 1985-02-14T01:40:58.50 10.0 positive manual PG 221 0.0015 -0.03 2.8
--.BOO.Z. 1985-02-14T01:40:57.70 10.0 positive manual PG 260 0.0011 -0.13 2.5
--.BAD.Z. 1985-02-14T01:40:57.70 10.0 positive manual PG 194 0.0009 0.23 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download