Earthquake with magnitude of Md 2.2 on date 11-04-1985 and time 07:51:22 (Italy) in region 6 km SE Paularo (UD)

A magnitude Md 2.2 earthquake occured in region: 6 km SE Paularo (UD), on

  • 11-04-1985 05:51:22 (UTC)
  • 11-04-1985 07:51:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.48, 13.15 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
Moggio Udinese UD 9 1714 4453
Arta Terme UD 9 2171 6624
Zuglio UD 9 595 7219
Treppo Carnico UD 10 618 7837
Resiutta UD 11 309 8146
Paluzza UD 11 2217 10363
Amaro UD 12 823 11186
Sutrio UD 12 1332 12518
Pontebba UD 13 1433 13951
Tolmezzo UD 13 10440 24391
Cercivento UD 13 679 25070
Dogna UD 14 175 25245
Cavazzo Carnico UD 15 1052 26297
Chiusaforte UD 15 672 26969
Verzegnis UD 15 863 27832
Venzone UD 16 2117 29949
Resia UD 17 1033 30982
Lauco UD 17 729 31711
Ravascletto UD 18 536 32247
Villa Santina UD 18 2233 34480
Bordano UD 19 754 35234

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km N of Udine (99169 inhabitants)
69 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 2.2 1985-04-11
05:51:22
46.48 13.15 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 4509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-11 05:51:22 ± 0.212
Latitude 46.48 ± 0.01
Longitude 13.15 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4509

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) 1749.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01336
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 4509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PAG.Z. 1985-04-11T05:52:10.30 10.0 undecidable manual SN 257 0.0134 0.5 0.2
--.DDS.Z. 1985-04-11T05:52:08.90 10.0 undecidable manual SN 246 0.0133 -0.62 0.1
--.PAN.Z. 1985-04-11T05:52:06.10 10.0 undecidable manual SN 251 0.0121 -0.09 0.4
--.PAG.Z. 1985-04-11T05:51:50.60 10.0 undecidable manual PN 257 0.0134 0.83 0.2
--.DDS.Z. 1985-04-11T05:51:49.90 10.0 undecidable manual PN 246 0.0133 0.3 0.7
--.PAN.Z. 1985-04-11T05:51:47.90 10.0 undecidable manual PN 251 0.0121 0.22 0.9
--.CTI.Z. 1985-04-11T05:51:43.50 10.0 undecidable manual PN 247 0.01 -1.15 0
--.DRE.Z. 1985-04-11T05:51:39.80 10.0 undecidable manual SG 131 0.0041 -0.27 0.5
--.COL.Z. 1985-04-11T05:51:37.30 10.0 undecidable manual SG 155 0.0034 0.13 0.6
--.RBL.Z. 1985-04-11T05:51:37.50 10.0 undecidable manual SG? 97 0.0026 3.72 0
--.BAD.Z. 1985-04-11T05:51:32.00 10.0 undecidable manual SG 164 0.0023 -0.23 0.8
--.FO1.Z. 1985-04-11T05:51:32.50 10.0 undecidable manual SG 294 0.0024 -0.65 0.2
--.DRE.Z. 1985-04-11T05:51:32.50 10.0 positive manual PG 131 0.0041 -0.1 2.9
--.BUA.Z. 1985-04-11T05:51:31.50 10.0 undecidable manual SG 183 0.0023 -1.11 0
--.COL.Z. 1985-04-11T05:51:30.90 10.0 positive manual PG 155 0.0034 -0.03 2.9
--.RBL.Z. 1985-04-11T05:51:29.00 10.0 undecidable manual PG 97 0.0026 0.03 1.5
--.BUA.Z. 1985-04-11T05:51:28.10 10.0 positive manual PG 183 0.0023 -0.19 1.3
--.BAD.Z. 1985-04-11T05:51:28.30 10.0 positive manual PG 164 0.0023 0.22 2.6
--.FO1.Z. 1985-04-11T05:51:28.50 10.0 undecidable manual PG 294 0.0024 -0.11 1.4
--.BOO.Z. 1985-04-11T05:51:26.60 10.0 positive manual PG 191 0.0015 0.46 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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