Earthquake with magnitude of Md 3.3 on date 04-03-1985 and time 03:32:12 (Italy) in region 6 km E Paularo (UD)

A magnitude Md 3.3 earthquake occured in region: 6 km E Paularo (UD), on

  • 04-03-1985 02:32:12 (UTC)
  • 04-03-1985 03:32:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.54, 13.19 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
Paularo UD 6 2623 2623
Ligosullo UD 9 116 2739
Pontebba UD 10 1433 4172
Treppo Carnico UD 11 618 4790
Paluzza UD 13 2217 7007
Dogna UD 14 175 7182
Arta Terme UD 15 2171 9353
Moggio Udinese UD 15 1714 11067
Zuglio UD 15 595 11662
Cercivento UD 15 679 12341
Sutrio UD 15 1332 13673
Resiutta UD 17 309 13982
Chiusaforte UD 18 672 14654
Malborghetto Valbruna UD 20 951 15605
Amaro UD 20 823 16428

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km N of Udine (99169 inhabitants)
77 Km NE of Pordenone (51229 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 3.3
ML-VAX 3.0
1985-03-04
02:32:12
46.54 13.19 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-04 02:32:12 ± 0.402
Latitude 46.54 ± 0.09
Longitude 13.19 ± 0.04
Depth (km) 5 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2969

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) 10744.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.02267
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 2969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:48

ML:3

Field Value
Value 3
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 2969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BG1.Z. 1985-03-04T02:32:54.00 10.0 undecidable manual PN 253 0.0227 -0.46 0.6
--.CTI.Z. 1985-03-04T02:32:52.50 10.0 undecidable manual SN 245 0.0105 -0.16 0.5
--.SAL.Z. 1985-03-04T02:32:48.50 10.0 undecidable manual PN 244 0.0186 0.31 0.8
--.TRI.Z. 1985-03-04T02:32:46.50 10.0 undecidable manual SG 154 0.0083 0.99 0.2
--.CTI.Z. 1985-03-04T02:32:36.20 10.0 undecidable manual PN 245 0.0105 0.33 1.1
--.TRI.Z. 1985-03-04T02:32:30.50 10.0 undecidable manual PG 154 0.0083 -1.25 0.1
--.RBL.Z. 1985-03-04T02:32:23.50 10.0 undecidable manual SG 111 0.0025 -0.38 0.7
--.FO1.Z. 1985-03-04T02:32:23.50 10.0 undecidable manual SG 280 0.0025 -0.51 0.4
--.FO1.Z. 1985-03-04T02:32:19.50 10.0 negative manual PG 280 0.0025 0.17 2.9
--.RBL.Z. 1985-03-04T02:32:19.50 10.0 negative manual PG 111 0.0025 0.24 2.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download