Earthquake with magnitude of Md 3.2 on date 04-03-1985 and time 03:32:17 (Italy) in region 8 km SE Tarvisio (UD)

A magnitude Md 3.2 earthquake occured in region: 8 km SE Tarvisio (UD), on

  • 04-03-1985 02:32:17 (UTC)
  • 04-03-1985 03:32:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.44, 13.61 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
Tarvisio UD 8 4326 4326
Malborghetto Valbruna UD 15 951 5277

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km NE of Udine (99169 inhabitants)
89 Km N of Trieste (204420 inhabitants)
91 Km NE of Pordenone (51229 inhabitants)
Recent and historical Seismicity
Seismic hazard
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 Md 3.2 1985-03-04
46.44 13.61 10 2013-07-15
Bollettino Sismico Italiano INGV 2979
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 1985-03-04 02:32:17 ± 2.391
Latitude 46.44 ± 0.17
Longitude 13.61 ± 0.15
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2979


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) 21988.5
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 302
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.1
Epicentral distance of station closest to the epicenter (degree) 0.02064
Epicentral distance of station farthest from the epicenter (degree) 0.03586
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information


Field Value
Value 3.2
Num. used stations 1
Type of magnitude Md
Reference to an origin 2979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BG1.Z. 1985-03-04T02:33:34.50 10.0 undecidable manual SN 255 0.025 0.6 0.7
--.SAL.Z. 1985-03-04T02:33:22.00 10.0 undecidable manual SN 247 0.0206 -0.36 0.7
--.ORO.Z. 1985-03-04T02:33:20.50 10.0 undecidable manual PN 258 0.0359 2.39 0.4
--.BD1.Z. 1985-03-04T02:33:08.00 10.0 undecidable manual PN 220 0.0286 0.93 1.4
--.CH1.Z. 1985-03-04T02:33:05.00 10.0 undecidable manual PN 201 0.0274 -0.19 1.8
--.BG1.Z. 1985-03-04T02:33:00.00 10.0 undecidable manual PN 255 0.025 -1.54 1
--.SAL.Z. 1985-03-04T02:32:53.20 10.0 undecidable manual PN 247 0.0206 -1.68 0.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download