Earthquake with magnitude of Md 2.2 on date 04-10-1986 and time 16:09:25 (UTC) in region 4 km NE Lusevera (UD)

A magnitude Md 2.2 earthquake occured in region: 4 km NE Lusevera (UD), on

  • 04-10-1986 16:09:25 (UTC)
  • 04-10-1986 17:09:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.2980, 13.2830 at 5 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 4 643 643
Taipana UD 7 636 1279
Resia UD 9 1033 2312
Montenars UD 9 538 2850
Tarcento UD 10 9012 11862
Nimis UD 11 2740 14602
Magnano in Riviera UD 11 2336 16938
Gemona del Friuli UD 11 10964 27902
Artegna UD 12 2885 30787
Resiutta UD 12 309 31096
Venzone UD 12 2117 33213
Attimis UD 12 1805 35018
Chiusaforte UD 13 672 35690
Bordano UD 14 754 36444
Moggio Udinese UD 14 1714 38158
Treppo Grande UD 15 1708 39866
Buja UD 16 6563 46429
Cassacco UD 16 2938 49367
Tricesimo UD 16 7600 56967
Trasaghis UD 16 2227 59194
Osoppo UD 16 2936 62130
Amaro UD 17 823 62953
Reana del Rojale UD 17 4966 67919
Faedis UD 17 2945 70864
Dogna UD 17 175 71039
Colloredo di Monte Albano UD 18 2223 73262
Povoletto UD 20 5471 78733

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Udine (99169 inhabitants)
61 Km NE of Pordenone (51229 inhabitants)
81 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
Bulletin
Rev1000
Md 2.2 1986-10-04
16:09:25
46.298 13.283 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 35279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-04 16:09:25 ± 0.272
Latitude 46.2980 ± 0.0248
Longitude 13.2830 ± 0.0262
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 35279

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) 3413.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.01036
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 35279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:35:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CTI.Z. 1986-10-04T16:10:05.50 10.0 undecidable manual SN 258 1.1544 0.66 0.1
--.CTI.Z. 1986-10-04T16:09:48.00 10.0 undecidable manual PN 258 1.1544 -0.21 1
--.VOY.Z. 1986-10-04T16:09:45.20 10.0 undecidable manual SG 122 0.4995 0.81 0.1
--.RBL.Z. 1986-10-04T16:09:35.00 10.0 undecidable manual SG 54 0.2331 0.01 0.7
--.VOY.Z. 1986-10-04T16:09:35.90 10.0 undecidable manual PG 122 0.4995 -0.5 0.7
--.RBL.Z. 1986-10-04T16:09:31.00 10.0 positive manual PG 54 0.2331 0.03 3.4
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