Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.4 on date 23-04-1994 and time 13:49:49 (Italy) in region 9 km SW Forni di Sopra (UD)

A magnitude Md 2.4 earthquake occured in region: 9 km SW Forni di Sopra (UD), on

  • 23-04-1994 11:49:49 (UTC)
  • 23-04-1994 13:49:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.3600, 12.5140 at 6 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 Sopra UD 9 993 993
Cimolais PN 10 397 1390
Claut PN 10 956 2346
Perarolo di Cadore BL 13 380 2726
Forni di Sotto UD 13 600 3326
Pieve di Cadore BL 13 3794 7120
Domegge di Cadore BL 14 2441 9561
Erto e Casso PN 14 387 9948
Calalzo di Cadore BL 14 2085 12033
Lorenzago di Cadore BL 14 549 12582
Ospitale di Cadore BL 15 292 12874
Lozzo di Cadore BL 15 1383 14257
Valle di Cadore BL 16 1964 16221
Vigo di Cadore BL 16 1440 17661
Cibiana di Cadore BL 17 393 18054
Longarone BL 19 5359 23413
Sauris UD 19 416 23829
Barcis PN 19 256 24085
Andreis PN 19 259 24344

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km N of Pordenone (51229 inhabitants)
65 Km W of Udine (99169 inhabitants)
80 Km N of Treviso (83731 inhabitants)
90 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 2.4
ML-VAX 1.8 		1994-04-23
11:49:49		 46.36 12.514 7 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 208379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-04-23 11:49:49 ± 0.511
Latitude 46.3600 ± 0.0239
Longitude 12.5140 ± 0.0249
Depth (km) 7 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 208379

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) 3267.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.01878
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 208379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:16:19

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 208379
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(km) Takeoff_angle Residual Weight
--.VBY.Z. 1994-04-23T11:50:55.30 10.0 undecidable manual SN! 113 2.0868 4.28 0
--.CEY.E. 1994-04-23T11:50:39.60 10.0 undecidable manual SN! 114 1.4541 3.43 0
--.LJU.E. 1994-04-23T11:50:38.40 10.0 undecidable manual SN! 102 1.4208 3.09 0
--.VBY.Z. 1994-04-23T11:50:28.30 10.0 undecidable manual PN! 113 2.0868 3.09 0
--.TRI.Z. 1994-04-23T11:50:27.28 10.0 undecidable manual SN 126 1.0767 0.15 0.7
--.VOY.N. 1994-04-23T11:50:24.50 10.0 undecidable manual SG 108 1.0101 -0.39 0.6
--.KBA.Z. 1994-04-23T11:50:20.79 10.0 undecidable manual SG 38 0.9102 -1.14 0.5
--.CEY.Z. 1994-04-23T11:50:18.10 10.0 undecidable manual PN 114 1.4541 1.47 0.5
--.LJU.Z. 1994-04-23T11:50:18.00 10.0 undecidable manual PN 102 1.4208 1.87 0.2
--.CTI.Z. 1994-04-23T11:50:13.82 10.0 undecidable manual SG 242 0.666 -0.33 0.6
--.TRI.Z. 1994-04-23T11:50:11.76 10.0 undecidable manual PN 126 1.0767 0.35 1.8
--.VOY.Z. 1994-04-23T11:50:09.30 10.0 undecidable manual PG 108 1.0101 -0.81 1
--.KBA.Z. 1994-04-23T11:50:08.70 10.0 positive manual PG 38 0.9102 0.29 3.6
--.GE9.Z. 1994-04-23T11:50:05.62 10.0 undecidable manual SG 100 0.4329 -0.95 0.3
--.CTI.Z. 1994-04-23T11:50:03.38 10.0 undecidable manual PG 242 0.666 -0.54 1.4
--.FVI.Z. 1994-04-23T11:50:01.35 10.0 undecidable manual SG 38 0.2997 -0.26 0.7
--.GE9.Z. 1994-04-23T11:49:58.88 10.0 undecidable manual PG 100 0.4329 -0.66 1.2
--.FVI.Z. 1994-04-23T11:49:56.87 10.0 undecidable manual PG 38 0.2997 0.2 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download