Earthquake with magnitude of Md 2.4 on date 04-03-1986 and time 21:27:03 (Italy) in region 9 km S Tarvisio (UD)

A magnitude Md 2.4 earthquake occured in region: 9 km S Tarvisio (UD), on

  • 04-03-1986 20:27:03 (UTC)
  • 04-03-1986 21:27:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4230, 13.5700 at 8 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
Tarvisio UD 9 4326 4326
Malborghetto Valbruna UD 14 951 5277
Dogna UD 20 175 5452
Chiusaforte UD 20 672 6124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Udine (99169 inhabitants)
87 Km NE of Pordenone (51229 inhabitants)
87 Km N 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 2.4 1986-03-04
20:27:03
46.423 13.57 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 23599
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-03-04 20:27:03 ± 0.147
Latitude 46.4230 ± 0.0074
Longitude 13.5700 ± 0.0099
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 23599

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) 1118.1
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 16
Number of defining phases 16
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) 0.00016
Epicentral distance of station farthest from the epicenter (degree) 0.01238
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 23599
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:25:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CTI.Z. 1986-03-04T20:27:28.40 10.0 undecidable manual PN 254 1.3764 -0.73 0.1
--.FOA.Z. 1986-03-04T20:27:24.50 10.0 undecidable manual SG 286 0.5661 0.03 0.6
--.ZOU.Z. 1986-03-04T20:27:20.10 10.0 undecidable manual SG 288 0.4329 0.09 0.9
--.VOY.Z. 1986-03-04T20:27:20.60 10.0 undecidable manual SG 150 0.444 0.01 1
--.BUA.Z. 1986-03-04T20:27:18.80 10.0 undecidable manual SG 236 0.3663 0.78 0.1
--.BOO.Z. 1986-03-04T20:27:17.20 10.0 undecidable manual SG 252 0.333 0.15 0.9
--.FOA.Z. 1986-03-04T20:27:16.20 10.0 undecidable manual PG 286 0.5661 0.48 0.5
--.BAD.Z. 1986-03-04T20:27:15.00 10.0 undecidable manual SG 230 0.2886 -0.32 0.6
--.VOY.Z. 1986-03-04T20:27:13.60 10.0 undecidable manual PG 150 0.444 0.12 1.5
--.DRE.Z. 1986-03-04T20:27:13.90 10.0 undecidable manual SG 168 0.2553 -0.01 1
--.ZOU.Z. 1986-03-04T20:27:12.90 10.0 undecidable manual PG 288 0.4329 -0.24 1.2
--.BOO.Z. 1986-03-04T20:27:11.30 10.0 undecidable manual PG 252 0.333 -0.14 1.5
--.BUA.Z. 1986-03-04T20:27:11.90 10.0 undecidable manual PG 236 0.3663 -0.09 1.6
--.BAD.Z. 1986-03-04T20:27:10.40 10.0 undecidable manual PG 230 0.2886 -0.04 1.6
--.DRE.Z. 1986-03-04T20:27:09.70 10.0 undecidable manual PG 168 0.2553 0.09 1.6
--.RBL.Z. 1986-03-04T20:27:05.50 10.0 undecidable manual PG 354 0.0222 0.16 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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