Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 3.0 on date 20-04-1994 and time 16:40:38 (Italy) in region 8 km SW Forni di Sotto (UD)

A magnitude Md 3.0 earthquake occured in region: 8 km SW Forni di Sotto (UD), on

  • 20-04-1994 14:40:38 (UTC)
  • 20-04-1994 16:40:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.33, 12.63 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Forni di Sotto UD 8 600 600
Claut PN 11 956 1556
Forni di Sopra UD 11 993 2549
Tramonti di Sopra PN 13 321 2870
Tramonti di Sotto PN 14 387 3257
Andreis PN 14 259 3516
Frisanco PN 15 622 4138
Cimolais PN 15 397 4535
Barcis PN 16 256 4791
Ampezzo UD 16 1006 5797
Sauris UD 17 416 6213
Socchieve UD 17 908 7121
Meduno PN 18 1574 8695
Fanna PN 19 1583 10278
Maniago PN 19 11698 21976
Cavasso Nuovo PN 19 1525 23501
Montereale Valcellina PN 19 4433 27934

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Pordenone (51229 inhabitants)
56 Km NW of Udine (99169 inhabitants)
79 Km NE of Treviso (83731 inhabitants)
99 Km E of Bolzano (106441 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 3.0 1994-04-20
14:40:38		 46.33 12.63 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 207969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-04-20 14:40:38 ± 0.13
Latitude 46.33 ± 0.01
Longitude 12.63 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 207969

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) 1922.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.06055
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 47
Magnitude information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 207969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:15:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BGF.Z. 1994-04-20T14:43:30.70 10.0 undecidable manual SN 275 0.0605 -0.16 0.4
--.PGF.Z. 1994-04-20T14:42:38.20 10.0 undecidable manual SN 215 0.0412 -1.45 0.2
--.HAU.Z. 1994-04-20T14:42:37.20 10.0 undecidable manual SN! 293 0.0412 -2.48 0
--.SBF.Z. 1994-04-20T14:42:35.79 10.0 undecidable manual SN 237 0.0397 0.1 0.5
--.BSF.Z. 1994-04-20T14:42:31.00 10.0 undecidable manual SN 292 0.0381 -0.64 0.4
--.BGF.Z. 1994-04-20T14:42:18.00 10.0 undecidable manual PN 275 0.0605 -0.18 0.9
--.AVF.Z. 1994-04-20T14:42:14.80 10.0 undecidable manual PN 277 0.0575 1.41 0.4
--.LOR.Z. 1994-04-20T14:42:08.00 10.0 undecidable manual PN 282 0.0546 -1.04 0.6
--.LBF.Z. 1994-04-20T14:42:08.59 10.0 undecidable manual PN 279 0.0537 0.96 0.7
--.CLL.Z. 1994-04-20T14:41:53.70 10.0 undecidable manual PN 2 0.0448 -0.45 2
--.HAU.Z. 1994-04-20T14:41:48.59 10.0 undecidable manual PN 293 0.0412 -0.04 1.2
--.PGF.Z. 1994-04-20T14:41:47.91 10.0 undecidable manual PN 215 0.0412 -0.7 1
--.SBF.Z. 1994-04-20T14:41:46.70 10.0 undecidable manual PN 237 0.0397 0.37 1.2
--.MOX.Z. 1994-04-20T14:41:45.59 10.0 undecidable manual PN 351 0.0393 -0.07 1.2
--.BSF.Z. 1994-04-20T14:41:44.00 10.0 undecidable manual PN 292 0.0381 0.01 1.3
--.LPL.Z. 1994-04-20T14:41:43.91 10.0 undecidable manual PN 260 0.0376 0.84 0.9
--.CDF.Z. 1994-04-20T14:41:43.41 10.0 undecidable manual PN 301 0.0376 0.35 1.3
--.LPG.Z. 1994-04-20T14:41:42.70 10.0 undecidable manual PN 260 0.0375 -0.25 1.2
--.ECH.Z. 1994-04-20T14:41:42.25 10.0 undecidable manual PN 299 0.0374 -0.57 1
--.ENR.Z. 1994-04-20T14:41:42.40 10.0 undecidable manual PN 242 0.038 -1.64 0.3
--.STV.Z. 1994-04-20T14:41:41.99 10.0 undecidable manual PN! 242 0.0384 -2.27 0
--.MOF.Z. 1994-04-20T14:41:41.30 10.0 undecidable manual PN 294 0.0363 0.18 1.3
--.PZZ.Z. 1994-04-20T14:41:41.30 10.0 undecidable manual PN! 246 0.0385 -3.49 0
--.MDI.Z. 1994-04-20T14:41:39.50 10.0 undecidable manual SN 255 0.0189 -1.07 0.3
--.ROB.Z. 1994-04-20T14:41:39.11 10.0 undecidable manual PN 240 0.0351 -0.25 1.3
--.RSP.Z. 1994-04-20T14:41:37.28 10.0 undecidable manual PN! 254 0.0353 -2.33 0
--.FIN.Z. 1994-04-20T14:41:36.41 10.0 undecidable manual PN 237 0.0338 -0.95 0.8
--.FEL.Z. 1994-04-20T14:41:33.78 10.0 undecidable manual PN 298 0.0314 0.07 1.4
--.PCP.Z. 1994-04-20T14:41:32.20 10.0 undecidable manual PN 239 0.0304 0.14 1.5
--.RIY.Z. 1994-04-20T14:41:29.20 10.0 undecidable manual SN 128 0.0141 1.05 0.5
--.SLE.Z. 1994-04-20T14:41:29.50 10.0 undecidable manual PN 298 0.0284 0.4 1.4
--.SAL.Z. 1994-04-20T14:41:28.60 10.0 undecidable manual SN 244 0.0146 -0.84 0.4
--.KHC.Z. 1994-04-20T14:41:25.00 10.0 undecidable manual PN 12 0.0258 -0.16 1.5
--.CEY.Z. 1994-04-20T14:41:25.70 10.0 undecidable manual SN! 114 0.0124 2.11 0
--.CRE.Z. 1994-04-20T14:41:23.00 10.0 undecidable manual PN 190 0.0247 -0.48 1.4
--.BOB.Z. 1994-04-20T14:41:22.00 10.0 undecidable manual PN 236 0.0244 -1.04 0.9
--.TMA.Z. 1994-04-20T14:41:22.70 10.0 undecidable manual PN 266 0.0234 1.21 0.8
--.LLS.Z. 1994-04-20T14:41:22.41 10.0 negative manual PN 283 0.0228 1.84 0.6
--.PTJ.Z. 1994-04-20T14:41:18.70 10.0 undecidable manual PN 99 0.0211 0.63 2.5
--.VDL.Z. 1994-04-20T14:41:17.20 10.0 undecidable manual PN 275 0.0196 1.53 0.5
--.MDI.Z. 1994-04-20T14:41:16.00 10.0 undecidable manual PN 255 0.0189 1.5 0.5
--.TRI.Z. 1994-04-20T14:41:15.50 10.0 undecidable manual SG 127 0.009 1.51 0.2
--.KMR.Z. 1994-04-20T14:41:15.20 10.0 undecidable manual PN 30 0.0181 1.93 0.5
--.VBY.Z. 1994-04-20T14:41:14.41 10.0 undecidable manual PN 113 0.0181 1.14 0.8
--.FUR.Z. 1994-04-20T14:41:14.30 10.0 undecidable manual PN 334 0.0185 0.41 1.5
--.OSS.Z. 1994-04-20T14:41:09.50 10.0 positive manual PN 282 0.0156 -0.18 3
--.SAL.Z. 1994-04-20T14:41:08.00 10.0 undecidable manual PN 244 0.0146 -0.07 1.5
--.RIY.Z. 1994-04-20T14:41:07.90 10.0 positive manual PN 128 0.0141 -0.24 3
--.BHG.Z. 1994-04-20T14:41:06.30 10.0 negative manual PN 7 0.0125 1.32 1.4
--.CEY.Z. 1994-04-20T14:41:05.90 10.0 undecidable manual PN 114 0.0124 0.39 1.4
--.LJU.Z. 1994-04-20T14:41:05.90 10.0 undecidable manual PN 101 0.0121 0.88 1
--.CTI.Z. 1994-04-20T14:41:03.50 10.0 undecidable manual SG 247 0.0066 -1.75 0.1
--.TRI.Z. 1994-04-20T14:40:59.20 10.0 negative manual PG 127 0.009 0.04 3.1
--.VOY.Z. 1994-04-20T14:40:56.00 10.0 undecidable manual PG 108 0.0083 -1.71 0.4
--.KBA.Z. 1994-04-20T14:40:55.70 10.0 positive manual PG 33 0.008 -1.46 0.9
--.GE9.Z. 1994-04-20T14:40:53.00 10.0 undecidable manual SG 97 0.0032 0.25 0.6
--.CTI.Z. 1994-04-20T14:40:52.40 10.0 undecidable manual PG 247 0.0066 -1.71 0.3
--.FVI.Z. 1994-04-20T14:40:48.50 10.0 undecidable manual SG 21 0.0025 -1.5 0.2
--.GE9.Z. 1994-04-20T14:40:46.00 10.0 negative manual PG 97 0.0032 -0.89 2.1
--.FVI.Z. 1994-04-20T14:40:44.20 10.0 negative manual PG 21 0.0025 -1.11 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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