Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 16-07-2021 and time 00:44:44 (UTC) in region 5 km E Venzone (UD)

A magnitude ML 1.2 earthquake occured in region: 5 km E Venzone (UD), on

  • 16-07-2021 00:44:44 (UTC)
  • 16-07-2021 02:44:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.3460, 13.1980 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Venzone UD 5 2117 2117
Resiutta UD 6 309 2426
Moggio Udinese UD 7 1714 4140
Bordano UD 8 754 4894
Amaro UD 9 823 5717
Gemona del Friuli UD 9 10964 16681
Resia UD 9 1033 17714
Montenars UD 10 538 18252
Lusevera UD 10 643 18895
Chiusaforte UD 11 672 19567
Trasaghis UD 12 2227 21794
Artegna UD 12 2885 24679
Cavazzo Carnico UD 12 1052 25731
Magnano in Riviera UD 13 2336 28067
Osoppo UD 14 2936 31003
Tarcento UD 15 9012 40015
Dogna UD 15 175 40190
Taipana UD 15 636 40826
Tolmezzo UD 16 10440 51266
Buja UD 16 6563 57829
Verzegnis UD 16 863 58692
Nimis UD 17 2740 61432
Treppo Grande UD 17 1708 63140
Zuglio UD 18 595 63735
Cassacco UD 19 2938 66673
Attimis UD 19 1805 68478
Arta Terme UD 19 2171 70649
Pontebba UD 20 1433 72082
Majano UD 20 5945 78027

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Udine (99169 inhabitants)
60 Km NE of Pordenone (51229 inhabitants)
89 Km NW of Trieste (204420 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
Reviewed
Rev100 		ML 1.2 2021-07-16
00:44:44		 46.3455 13.1983 10 2021-07-16
00:54:25		 Sala Sismica INGV-Roma 92802831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-16 00:44:44 ± 0.08
Latitude 46.3455 ± 0.0045
Longitude 13.1983 ± 0.0052
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92802831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 491
Semi-minor axis of confidence ellipse (meter) 221
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.46765
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 92802831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-16 00:54:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.SABO.HHZ. 2021-07-16T00:45:01.64 0.6 undecidable manual S 140 51.9036 50 0.88 36
OX.DRE.HHZ. 2021-07-16T00:44:57.34 0.6 undecidable manual S 119 39.2274 50 -0.03 48
OX.CLUD.HHZ. 2021-07-16T00:44:54.20 0.6 undecidable manual S 297 27.2505 50 0.04 49
NI.PALA.HHZ. 2021-07-16T00:44:53.00 0.6 undecidable manual S 242 23.754 113 -0.23 47
OX.PLRO.HHZ. 2021-07-16T00:44:53.09 0.6 undecidable manual S 350 22.9548 114 0.14 48
OX.SABO.HHZ. 2021-07-16T00:44:53.70 0.6 positive manual P 140 51.9036 50 -0.08 46
OX.FUSE.HHZ. 2021-07-16T00:44:51.37 0.6 undecidable manual S 297 16.872 121 0.27 47
OX.DRE.HHZ. 2021-07-16T00:44:51.19 0.6 undecidable manual P 119 39.2274 50 -0.64 41
IV.PTCC.HHZ. 2021-07-16T00:44:50.09 0.6 undecidable manual S 60 13.7751 127 -0.1 49
OX.PLRO.HHZ. 2021-07-16T00:44:49.28 1.0 negative manual P 350 22.9548 114 0.01 25
OX.CLUD.HHZ. 2021-07-16T00:44:49.75 1.0 undecidable manual P 297 27.2505 50 -0.22 23
RF.GEPF.HHZ. 2021-07-16T00:44:49.24 0.6 undecidable manual S 210 9.0798 138 0.26 48
NI.VINO.HHZ. 2021-07-16T00:44:49.56 0.6 undecidable manual S 150 11.7771 131 -0.09 49
NI.PALA.HHZ. 2021-07-16T00:44:49.21 0.6 positive manual P 242 23.754 113 -0.22 47
OX.FUSE.HHZ. 2021-07-16T00:44:48.10 0.6 undecidable manual P 297 16.872 121 -0.1 49
NI.VINO.HHZ. 2021-07-16T00:44:47.33 0.1 positive manual P 150 11.7771 131 -0.04 100
IV.PTCC.HHZ. 2021-07-16T00:44:47.72 0.1 negative manual P 60 13.7751 127 0.04 100
RF.GEPF.HHZ. 2021-07-16T00:44:47.08 0.6 positive manual P 210 9.0798 138 0.1 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHE. ML:1.0 0.000147 0.34 AML other m 2021-07-16T00:44:49.39
RF.GEPF.HHN. ML:1.5 0.00038449999999999997 0.14 AML other m 2021-07-16T00:44:49.41
NI.VINO.HHN. ML:1.1 0.0001291 0.24 AML other m 2021-07-16T00:44:49.62
NI.VINO.HHE. ML:1.1 0.0001292 0.18 AML other m 2021-07-16T00:44:49.69
IV.PTCC.HHE. ML:1.0 0.000114 0.24 AML other m 2021-07-16T00:44:50.25
IV.PTCC.HHN. ML:1.0 0.00010650000000000001 0.16 AML other m 2021-07-16T00:44:50.49
OX.PLRO.HHE. ML:1.2 0.00010035 0.3 AML other m 2021-07-16T00:44:53.45
OX.PLRO.HHN. ML:1.3 0.00014050000000000003 0.58 AML other m 2021-07-16T00:44:53.29
NI.PALA.HHN. ML:1.1 0.0000826 0.74 AML other m 2021-07-16T00:44:53.98
NI.PALA.HHE. ML:1.0 0.00006665000000000001 0.72 AML other m 2021-07-16T00:44:54.74
OX.CLUD.HHN. ML:0.7 0.000023800000000000003 0.38 AML other m 2021-07-16T00:44:54.44
OX.CLUD.HHE. ML:0.8 0.0000326 0.56 AML other m 2021-07-16T00:44:54.22
OX.SABO.HHE. ML:1.3 0.00004770000000000001 1.5 AML other m 2021-07-16T00:45:03.09
OX.SABO.HNN. ML:1.9 0.000194 1.48 AML other m 2021-07-16T00:45:04.78
OX.SABO.HNE. ML:2.0 0.000224 0.46 AML other m 2021-07-16T00:45:05.37
OX.SABO.HHN. ML:1.3 0.0000516 0.3 AML other m 2021-07-16T00:45:05.37
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