ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Md 2.5 on date 05-08-1985 and time 19:37:10 (Italy) in region 2 km NW Nimis (UD)

A magnitude Md 2.5 earthquake occured in region: 2 km NW Nimis (UD), on

  • 05-08-1985 17:37:10 (UTC)
  • 05-08-1985 19:37:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.21, 13.26 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
Nimis UD 2 2740 2740
Tarcento UD 3 9012 11752
Attimis UD 5 1805 13557
Lusevera UD 6 643 14200
Magnano in Riviera UD 7 2336 16536
Tricesimo UD 7 7600 24136
Cassacco UD 7 2938 27074
Reana del Rojale UD 7 4966 32040
Montenars UD 8 538 32578
Taipana UD 8 636 33214
Treppo Grande UD 8 1708 34922
Artegna UD 9 2885 37807
Faedis UD 10 2945 40752
Buja UD 10 6563 47315
Colloredo di Monte Albano UD 11 2223 49538
Povoletto UD 11 5471 55009
Pagnacco UD 11 5044 60053
Gemona del Friuli UD 12 10964 71017
Tavagnacco UD 13 14910 85927
Majano UD 14 5945 91872
Osoppo UD 14 2936 94808
Moruzzo UD 15 2456 97264
Remanzacco UD 15 6185 103449
Trasaghis UD 16 2227 105676
Martignacco UD 16 6924 112600
Venzone UD 16 2117 114717
Torreano UD 16 2139 116856
Bordano UD 16 754 117610
Moimacco UD 17 1675 119285
Udine UD 17 99169 218454
Fagagna UD 17 6385 224839
Pulfero UD 18 962 225801
Resia UD 18 1033 226834
Pasian di Prato UD 19 9444 236278
Cividale del Friuli UD 19 11292 247570
San Pietro al Natisone UD 20 2171 249741
San Daniele del Friuli UD 20 8013 257754
Rive d'Arcano UD 20 2444 260198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km N of Udine (99169 inhabitants)
54 Km NE of Pordenone (51229 inhabitants)
74 Km NW of Trieste (204420 inhabitants)
99 Km NE of Treviso (83731 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 2.5 1985-08-05
17:37:10
46.21 13.26 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 11319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-05 17:37:10 ± 0.321
Latitude 46.21 ± 0.03
Longitude 13.26 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 11319

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) 3663.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.01117
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 11319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:14:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CAV.Z. 1985-08-05T17:37:34.60 10.0 undecidable manual PN 274 0.0112 1.39 0.3
--.CTI.Z. 1985-08-05T17:37:33.50 10.0 undecidable manual PN 262 0.0101 1.9 0.2
--.TRI.Z. 1985-08-05T17:37:31.50 10.0 undecidable manual SG 144 0.0055 -0.21 0.5
--.TRI.Z. 1985-08-05T17:37:22.50 10.0 undecidable manual PG 144 0.0055 -0.07 1.3
--.RBL.Z. 1985-08-05T17:37:22.00 10.0 undecidable manual SG 42 0.0028 0.02 0.6
--.RBL.Z. 1985-08-05T17:37:18.00 10.0 undecidable manual PG 42 0.0028 1.05 0.9
--.DRE.Z. 1985-08-05T17:37:15.00 10.0 undecidable manual PG 98 0.0023 -1.16 0.8
--.BUA.Z. 1985-08-05T17:37:14.50 10.0 undecidable manual SG 272 0.0008 -0.59 0.8
--.BUA.Z. 1985-08-05T17:37:12.60 10.0 positive manual PG 272 0.0008 -0.37 2.9
--.BOO.Z. 1985-08-05T17:37:12.90 10.0 positive manual PG 313 0.0014 -1.12 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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