Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 03-03-2021 and time 14:35:46 (UTC) in region 6 km E Zuglio (UD)

A magnitude ML 1.7 earthquake occured in region: 6 km E Zuglio (UD), on

  • 03-03-2021 14:35:46 (UTC)
  • 03-03-2021 15:35:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.45, 13.11 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
Zuglio UD 6 595 595
Arta Terme UD 7 2171 2766
Moggio Udinese UD 8 1714 4480
Amaro UD 9 823 5303
Tolmezzo UD 9 10440 15743
Paularo UD 9 2623 18366
Ligosullo UD 10 116 18482
Treppo Carnico UD 11 618 19100
Cavazzo Carnico UD 11 1052 20152
Resiutta UD 11 309 20461
Verzegnis UD 11 863 21324
Paluzza UD 11 2217 23541
Sutrio UD 11 1332 24873
Cercivento UD 13 679 25552
Venzone UD 13 2117 27669
Lauco UD 14 729 28398
Villa Santina UD 15 2233 30631
Bordano UD 15 754 31385
Dogna UD 16 175 31560
Pontebba UD 16 1433 32993
Chiusaforte UD 16 672 33665
Ravascletto UD 17 536 34201
Resia UD 17 1033 35234
Enemonzo UD 18 1319 36553
Raveo UD 18 458 37011
Trasaghis UD 19 2227 39238
Ovaro UD 19 1922 41160
Preone UD 19 246 41406
Gemona del Friuli UD 19 10964 52370
Comeglians UD 20 516 52886

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km N of Udine (99169 inhabitants)
65 Km NE of Pordenone (51229 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.7 2021-03-03
14:35:46		 46.45 13.11 10 2021-03-03
14:42:09		 Sala Sismica INGV-Roma 87669531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-03 14:35:46 ± 0.06
Latitude 46.45 ± 0.00
Longitude 13.11 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87669531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 371
Semi-minor axis of confidence ellipse (meter) 352
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.58816
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 87669531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-03 14:42:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SCHR.EHZ. 2021-03-03T14:37:41.70 3.0 undecidable manual Pg 16.92 0
IX.STN3.HHZ.02 2021-03-03T14:37:23.33 3.0 undecidable manual Pn 4.23 0
IV.FIR.HHZ. 2021-03-03T14:37:08.97 3.0 undecidable manual Sn -3.07 0
IV.VOBA.EHZ. 2021-03-03T14:36:54.24 3.0 undecidable manual Sg 5.8 0
IV.IMOL.HNZ. 2021-03-03T14:36:54.28 3.0 undecidable manual Sn -1.17 0
IV.MONC.HHZ. 2021-03-03T14:36:53.44 3.0 negative manual Pn 5.71 0
IV.FDMO.HHZ. 2021-03-03T14:36:49.61 3.0 undecidable manual Pg 8.81 0
SL.BOJS.BHZ. 2021-03-03T14:36:45.22 3.0 undecidable manual Sg 2.14 0
IV.SARZ.HHZ. 2021-03-03T14:36:43.46 3.0 undecidable manual Pn 3.23 0
SI.LUSI.HHZ. 2021-03-03T14:36:40.24 3.0 undecidable manual Sg 1.52 0
IV.ARVD.HHZ. 2021-03-03T14:36:35.27 3.0 undecidable manual Pn 0.77 0
ST.PANI.EHZ. 2021-03-03T14:36:31.96 3.0 undecidable manual S 0.25 0
IV.VOBA.EHZ. 2021-03-03T14:36:23.38 3.0 positive manual Pn 1.71 0
OX.SABO.HHZ. 2021-03-03T14:35:58.58 1.0 undecidable manual P 142 0.5882 50 0.72 19
OX.DRE.HHZ. 2021-03-03T14:35:56.05 0.6 positive manual P 127 0.4623 50 0.35 44
NI.PALA.HHZ. 2021-03-03T14:35:56.07 0.6 undecidable manual S 212 0.2428 50 -0.01 50
NI.VINO.HHZ. 2021-03-03T14:35:55.50 0.6 undecidable manual S 150 0.2275 50 -0.15 48
OX.BAD.HHZ. 2021-03-03T14:35:55.63 0.6 undecidable manual S 157 0.2356 50 -0.26 47
OX.CIMO.HHZ. 2021-03-03T14:35:55.78 0.1 undecidable manual P 253 0.4793 50 -0.21 91
OX.MPRI.HNZ. 2021-03-03T14:35:55.88 0.6 undecidable manual S 202 0.2266 50 0.27 47
IV.PTCC.HHZ. 2021-03-03T14:35:53.80 0.6 undecidable manual S 104 0.1736 118 -0.09 50
OX.CLUD.HHZ. 2021-03-03T14:35:53.33 0.6 undecidable manual S 272 0.1574 121 0 51
RF.GEPF.HHZ. 2021-03-03T14:35:53.89 0.6 undecidable manual S 174 0.1772 118 -0.11 49
NI.PALA.HHZ. 2021-03-03T14:35:52.13 0.3 undecidable manual P 212 0.2428 50 0.19 72
IV.FVI.HHZ. 2021-03-03T14:35:52.39 1.0 positive manual P 303 0.2689 50 -0.01 25
OX.BOO.HNZ. 2021-03-03T14:35:52.41 0.6 undecidable manual S 183 0.1313 125 -0.1 50
OX.MPRI.HNZ. 2021-03-03T14:35:51.35 0.1 undecidable manual P 202 0.2266 50 -0.31 94
NI.VINO.HHZ. 2021-03-03T14:35:51.73 0.3 negative manual P 150 0.2275 50 0.04 74
OX.PLRO.HNZ. 2021-03-03T14:35:51.28 0.6 undecidable manual S 15 0.1016 133 -0.32 48
OX.BAD.HHZ. 2021-03-03T14:35:51.79 0.1 undecidable manual P 157 0.2356 50 -0.04 99
OX.FUSE.HHZ. 2021-03-03T14:35:50.90 0.3 undecidable manual S 244 0.0836 138 -0.21 74
RF.GEPF.HHZ. 2021-03-03T14:35:50.95 1.0 negative manual P 174 0.1772 118 0.21 24
OX.BOO.HNZ. 2021-03-03T14:35:50.06 0.1 undecidable manual P 183 0.1313 125 0.18 98
IV.PTCC.HHZ. 2021-03-03T14:35:50.57 1.0 undecidable manual P 104 0.1736 118 -0.1 25
OX.CLUD.HHZ. 2021-03-03T14:35:50.45 0.1 negative manual P 272 0.1574 121 0.1 99
OX.FUSE.HHZ. 2021-03-03T14:35:49.26 0.1 negative manual P 244 0.0836 138 0.19 99
OX.PLRO.HNZ. 2021-03-03T14:35:49.46 0.1 undecidable manual P 15 0.1016 133 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHN. ML:1.4 0.000191 1.8 AML other m 2021-03-03T14:35:54.02
IV.PTCC.HHE. ML:1.4 0.0001975 0.48 AML other m 2021-03-03T14:35:54.24
OX.CLUD.HNN. ML:1.5 0.0002635 0.5 AML other m 2021-03-03T14:35:54.66
OX.CLUD.HHN. ML:1.5 0.000245 0.5 AML other m 2021-03-03T14:35:54.66
RF.GEPF.HHE. ML:1.4 0.0001755 1.46 AML other m 2021-03-03T14:35:54.00
IV.PTCC.HHN. ML:1.4 0.000202 0.64 AML other m 2021-03-03T14:35:54.93
OX.CLUD.HNE. ML:1.3 0.000161 0.58 AML other m 2021-03-03T14:35:55.91
OX.CLUD.HHE. ML:1.3 0.0001625 0.4 AML other m 2021-03-03T14:35:55.91
NI.VINO.HHN. ML:1.9 0.0004645 0.18 AML other m 2021-03-03T14:35:55.89
NI.VINO.HHE. ML:1.6 0.000248 1.84 AML other m 2021-03-03T14:35:56.01
IV.FVI.HHE. ML:1.8 0.000301 0.82 AML other m 2021-03-03T14:35:56.80
NI.PALA.HHN. ML:1.7 0.0002975 0.72 AML other m 2021-03-03T14:35:56.99
IV.FVI.HHN. ML:1.6 0.0002115 0.24 AML other m 2021-03-03T14:35:57.25
NI.PALA.HHE. ML:1.8 0.000344 0.42 AML other m 2021-03-03T14:35:57.94
OX.CIMO.HHE. ML:0.9 2.12E-5 0.42 AML other m 2021-03-03T14:36:04.63
OX.CIMO.HHN. ML:0.9 2.105E-5 0.94 AML other m 2021-03-03T14:36:05.53
OX.SABO.HNN. ML:2.4 0.000453 0.78 AML other m 2021-03-03T14:36:12.58
OX.SABO.HHN. ML:1.8 0.0001245 0.78 AML other m 2021-03-03T14:36:12.58
OX.SABO.HHE. ML:1.8 0.0001039 0.74 AML other m 2021-03-03T14:36:12.78
OX.SABO.HNE. ML:2.4 0.000469 0.74 AML other m 2021-03-03T14:36:12.79
ST.PANI.EHN. ML:2.1 7.595E-5 0.28 AML other m 2021-03-03T14:36:32.31
ST.PANI.EHE. ML:2 4.94E-5 0.9 AML other m 2021-03-03T14:36:32.90
IV.IMOL.HNN. ML:3.8 0.001225 0.06 AML other m 2021-03-03T14:36:55.67
IV.IMOL.HNE. ML:3.8 0.001005 0.18 AML other m 2021-03-03T14:36:55.76
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download