Earthquake with magnitude of M 1.8 on date 07-03-1986 and time 00:00:58 (Italy) in region 2 km W Gemona del Friuli (UD)

A magnitude M 1.8 earthquake occured in region: 2 km W Gemona del Friuli (UD), on

  • 06-03-1986 23:00:58 (UTC)
  • 07-03-1986 00:00:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.2730, 13.1220 at 9 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
Gemona del Friuli UD 2 10964 10964
Osoppo UD 4 2936 13900
Trasaghis UD 4 2227 16127
Artegna UD 4 2885 19012
Bordano UD 5 754 19766
Montenars UD 5 538 20304
Magnano in Riviera UD 6 2336 22640
Buja UD 7 6563 29203
Venzone UD 7 2117 31320
Treppo Grande UD 9 1708 33028
Tarcento UD 10 9012 42040
Majano UD 10 5945 47985
Lusevera UD 11 643 48628
Amaro UD 12 823 49451
Colloredo di Monte Albano UD 12 2223 51674
Cassacco UD 12 2938 54612
Cavazzo Carnico UD 12 1052 55664
Forgaria nel Friuli UD 13 1786 57450
Vito d'Asio PN 13 769 58219
Nimis UD 14 2740 60959
Tricesimo UD 14 7600 68559
San Daniele del Friuli UD 15 8013 76572
Ragogna UD 15 2909 79481
Resiutta UD 16 309 79790
Moggio Udinese UD 16 1714 81504
Verzegnis UD 16 863 82367
Reana del Rojale UD 17 4966 87333
Clauzetto PN 17 380 87713
Pinzano al Tagliamento PN 17 1525 89238
Tolmezzo UD 17 10440 99678
Attimis UD 17 1805 101483
Moruzzo UD 17 2456 103939
Pagnacco UD 17 5044 108983
Taipana UD 17 636 109619
Rive d'Arcano UD 18 2444 112063
Fagagna UD 18 6385 118448
Resia UD 18 1033 119481
Castelnovo del Friuli PN 19 880 120361
Martignacco UD 19 6924 127285

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Udine (99169 inhabitants)
50 Km NE of Pordenone (51229 inhabitants)
85 Km NW of Trieste (204420 inhabitants)
95 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
Bulletin
Rev1000
M 1.8 1986-03-06
23:00:58
46.273 13.122 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 23729
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-03-06 23:00:58 ± 0.191
Latitude 46.2730 ± 0.0144
Longitude 13.1220 ± 0.0206
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 23729

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) 2255.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00040
Epicentral distance of station farthest from the epicenter (degree) 0.00332
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

M:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 23729
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(km) Takeoff_angle Residual Weight
--.DRE.Z. 1986-03-06T23:01:12.20 10.0 undecidable manual SG 105 0.3663 -0.43 0.2
--.ZOU.Z. 1986-03-06T23:01:10.30 10.0 undecidable manual SG 340 0.2997 -0.02 0.7
--.DRE.Z. 1986-03-06T23:01:06.50 10.0 undecidable manual PG? 105 0.3663 -0.2 0.3
--.ZOU.Z. 1986-03-06T23:01:05.30 10.0 undecidable manual PG 340 0.2997 -0.06 1.2
--.BAD.Z. 1986-03-06T23:01:03.40 10.0 undecidable manual SG 113 0.0888 0.04 1
--.BUA.Z. 1986-03-06T23:01:01.10 10.0 negative manual PG 178 0.0555 0.3 2.2
--.BAD.Z. 1986-03-06T23:01:01.50 10.0 positive manual PG 113 0.0888 0.16 2.9
--.BOO.Z. 1986-03-06T23:01:01.90 10.0 undecidable manual SG 342 0.0444 -0.44 0.4
--.BUA.Z. 1986-03-06T23:01:01.50 10.0 undecidable manual SG 178 0.0555 -0.93 0
--.BOO.Z. 1986-03-06T23:01:01.00 10.0 undecidable manual PG 342 0.0444 0.25 1.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download