Earthquake with magnitude of Md 1.9 on date 05-04-1985 and time 14:14:38 (Italy) in region 3 km NE Arta Terme (UD)

A magnitude Md 1.9 earthquake occured in region: 3 km NE Arta Terme (UD), on

  • 05-04-1985 12:14:38 (UTC)
  • 05-04-1985 14:14:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.4940, 13.0530 at 13 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
Arta Terme UD 3 2171 2171
Zuglio UD 4 595 2766
Treppo Carnico UD 5 618 3384
Paluzza UD 5 2217 5601
Sutrio UD 5 1332 6933
Ligosullo UD 5 116 7049
Cercivento UD 6 679 7728
Paularo UD 7 2623 10351
Tolmezzo UD 10 10440 20791
Ravascletto UD 11 536 21327
Lauco UD 12 729 22056
Verzegnis UD 12 863 22919
Villa Santina UD 13 2233 25152
Amaro UD 14 823 25975
Cavazzo Carnico UD 14 1052 27027
Comeglians UD 14 516 27543
Ovaro UD 14 1922 29465
Moggio Udinese UD 14 1714 31179
Raveo UD 15 458 31637
Enemonzo UD 16 1319 32956
Rigolato UD 16 448 33404
Resiutta UD 17 309 33713
Preone UD 18 246 33959
Venzone UD 19 2117 36076
Pontebba UD 19 1433 37509
Prato Carnico UD 20 904 38413

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km NW of Udine (99169 inhabitants)
67 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
Bulletin
Rev1000
Md 1.9 1985-04-05
12:14:38
46.494 13.053 13 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 4089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-05 12:14:38 ± 0.121
Latitude 46.4940 ± 0.0078
Longitude 13.0530 ± 0.0085
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4089

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) 1082.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00461
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 4089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.DRE.Z. 1985-04-05T12:14:57.00 10.0 undecidable manual SG 127 0.5106 0.03 0.6
--.BAD.Z. 1985-04-05T12:14:50.00 10.0 undecidable manual SG 152 0.2886 0.33 0.1
--.DRE.Z. 1985-04-05T12:14:49.20 10.0 undecidable manual PG 127 0.5106 0.07 1
--.FO1.Z. 1985-04-05T12:14:47.00 10.0 undecidable manual SG 298 0.2109 -0.28 0.3
--.POB.Z. 1985-04-05T12:14:45.30 10.0 undecidable manual SG 82 0.1554 -0.25 0.2
--.BOO.Z. 1985-04-05T12:14:45.80 10.0 undecidable manual SG 169 0.1665 -0.39 0
--.BAD.Z. 1985-04-05T12:14:44.90 10.0 negative manual PG 152 0.2886 -0.01 1.5
--.ZOU.Z. 1985-04-05T12:14:43.70 10.0 undecidable manual SG 318 0.0777 -0.04 0.7
--.FO1.Z. 1985-04-05T12:14:43.50 10.0 positive manual PG 298 0.2109 -0.03 3.3
--.POB.Z. 1985-04-05T12:14:42.40 10.0 undecidable manual PG 82 0.1554 -0.13 1.3
--.BOO.Z. 1985-04-05T12:14:42.80 10.0 negative manual PG 169 0.1665 -0.1 1.4
--.ZOU.Z. 1985-04-05T12:14:41.70 10.0 negative manual PG 318 0.0777 0.21 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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