Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 17-01-2021 and time 01:00:40 (Italy) in region 2 km W Verzegnis (UD)

A magnitude ML 1.9 earthquake occured in region: 2 km W Verzegnis (UD), on

  • 17-01-2021 00:00:40 (UTC)
  • 17-01-2021 01:00:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4, 12.97 at 7 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
Verzegnis UD 2 863 863
Tolmezzo UD 4 10440 11303
Villa Santina UD 4 2233 13536
Lauco UD 4 729 14265
Cavazzo Carnico UD 6 1052 15317
Enemonzo UD 7 1319 16636
Preone UD 8 246 16882
Zuglio UD 8 595 17477
Raveo UD 9 458 17935
Arta Terme UD 9 2171 20106
Amaro UD 10 823 20929
Socchieve UD 11 908 21837
Ovaro UD 13 1922 23759
Sutrio UD 13 1332 25091
Bordano UD 14 754 25845
Ampezzo UD 14 1006 26851
Cercivento UD 15 679 27530
Venzone UD 15 2117 29647
Ravascletto UD 15 536 30183
Trasaghis UD 15 2227 32410
Paluzza UD 15 2217 34627
Comeglians UD 15 516 35143
Treppo Carnico UD 16 618 35761
Tramonti di Sopra PN 17 321 36082
Moggio Udinese UD 17 1714 37796
Ligosullo UD 18 116 37912
Osoppo UD 18 2936 40848
Vito d'Asio PN 18 769 41617
Tramonti di Sotto PN 18 387 42004
Gemona del Friuli UD 19 10964 52968
Paularo UD 19 2623 55591
Clauzetto PN 19 380 55971
Resiutta UD 19 309 56280
Prato Carnico UD 19 904 57184
Forgaria nel Friuli UD 19 1786 58970
Rigolato UD 19 448 59418

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of Udine (99169 inhabitants)
55 Km NE of Pordenone (51229 inhabitants)
99 Km NE of Treviso (83731 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 1.9 2021-01-17
00:00:40		 46.4 12.97 7 2021-01-17
00:12:25		 Sala Sismica INGV-Roma 86313471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 00:00:40 ± 0.09
Latitude 46.40 ± 0.00
Longitude 12.97 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86313471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 438
Semi-minor axis of confidence ellipse (meter) 84
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.51531
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 86313471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 00:12:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIR.HHZ. 2021-01-17T00:02:02.91 3.0 undecidable manual Sn -2.15 0
IV.MAGA.HHZ. 2021-01-17T00:01:39.44 3.0 undecidable manual Sn 1.95 0
IV.MBAL.EHZ. 2021-01-17T00:01:34.57 3.0 undecidable manual Sn -0.07 0
ST.VARA.EHZ. 2021-01-17T00:01:32.98 3.0 undecidable manual Sn 0.19 0
ST.OZOL.EHZ. 2021-01-17T00:01:29.15 3.0 undecidable manual S 1.77 0
SL.LJU.BHZ. 2021-01-17T00:01:20.62 3.0 undecidable manual S -0.39 0
SL.BOJS.BHZ. 2021-01-17T00:01:14.57 3.0 negative manual Pg 1.7 0
ST.VARA.EHZ. 2021-01-17T00:01:11.25 3.0 negative manual Pg 1.32 0
ST.OZOL.EHZ. 2021-01-17T00:01:08.08 3.0 positive manual P 1.19 0
ST.DOSS.HHZ. 2021-01-17T00:01:07.72 3.0 positive manual P 0.67 0
ST.PANI.EHZ. 2021-01-17T00:01:05.85 3.0 positive manual P 0.9 0
IV.FREG.EHZ. 2021-01-17T00:01:03.44 3.0 undecidable manual S -1.58 0
SI.KOSI.HHZ. 2021-01-17T00:01:02.95 3.0 positive manual P -0.87 0
MN.TRI.HHZ. 2021-01-17T00:00:58.51 3.0 positive manual P -0.26 0
OX.SABO.HHZ. 2021-01-17T00:00:52.60 3.0 positive manual P -1.15 0
IV.PTCC.HHZ. 2021-01-17T00:00:51.07 0.3 undecidable manual S 88 0.2626 104 0.48 65
OX.DRE.HHZ. 2021-01-17T00:00:50.49 0.3 undecidable manual P 115 0.5153 50 -0.38 64
IV.STAL.HHZ. 2021-01-17T00:00:49.12 0.3 undecidable manual S 233 0.2266 106 -0.14 71
IV.FVI.HHZ. 2021-01-17T00:00:49.47 0.3 undecidable manual S 326 0.2392 105 -0.24 69
OX.PLRO.HHE. 2021-01-17T00:00:48.10 0.3 undecidable manual S 38 0.1943 109 0.06 72
OX.ACOM.HHZ. 2021-01-17T00:00:48.85 0.1 undecidable manual P 68 0.402 50 -0.07 92
OX.CIMO.HHZ. 2021-01-17T00:00:47.93 3.0 negative manual P -1.68 0
OX.MPRI.HHZ. 2021-01-17T00:00:46.75 0.3 undecidable manual S 176 0.1565 113 0.05 73
RF.GEPF.HHZ. 2021-01-17T00:00:46.87 0.3 undecidable manual S 137 0.1673 111 -0.21 71
IV.STAL.HHZ. 2021-01-17T00:00:45.30 0.1 undecidable manual P 233 0.2266 106 -0.11 95
OX.BOO.HHE. 2021-01-17T00:00:45.42 0.3 undecidable manual S 132 0.116 120 0.12 73
IV.PTCC.HHZ. 2021-01-17T00:00:45.99 0.6 undecidable manual P 88 0.2626 104 -0.19 46
IV.FVI.HHZ. 2021-01-17T00:00:45.66 0.1 negative manual P 326 0.2392 105 -0.01 97
NI.VINO.HHZ. 2021-01-17T00:00:45.76 0.1 undecidable manual P 124 0.2536 105 -0.21 93
OX.MPRI.HHZ. 2021-01-17T00:00:44.19 0.1 negative manual P 176 0.1565 113 0.26 93
OX.CLUD.HHZ. 2021-01-17T00:00:44.63 0.3 undecidable manual S 314 0.0863 127 0.28 71
OX.PLRO.HHE. 2021-01-17T00:00:44.78 0.3 undecidable manual P 38 0.1943 109 0.07 72
RF.GEPF.HHZ. 2021-01-17T00:00:44.22 0.1 undecidable manual P 137 0.1673 111 0.07 97
OX.BOO.HHE. 2021-01-17T00:00:43.36 0.1 undecidable manual P 132 0.116 120 0.24 95
OX.CLUD.HHZ. 2021-01-17T00:00:42.96 0.1 negative manual P 314 0.0863 127 0.39 92
OX.FUSE.HNZ. 2021-01-17T00:00:42.09 0.3 undecidable manual S 49 0.0261 159 -0.79 61
OX.FUSE.HNZ. 2021-01-17T00:00:41.68 0.1 undecidable manual P 49 0.0261 159 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CLUD.HNE. ML:1.9 0.001135 0.3 AML other m 2021-01-17T00:00:44.82
OX.CLUD.HHE. ML:1.9 0.001195 0.3 AML other m 2021-01-17T00:00:44.82
OX.CLUD.HHN. ML:2 0.0015 0.3 AML other m 2021-01-17T00:00:44.83
OX.CLUD.HNN. ML:2 0.00142 0.3 AML other m 2021-01-17T00:00:44.83
OX.MPRI.HNE. ML:1.6 0.000407 1.02 AML other m 2021-01-17T00:00:48.04
RF.GEPF.HHN. ML:1.7 0.000422 0.26 AML other m 2021-01-17T00:00:48.06
OX.MPRI.HHN. ML:1.9 0.000698 0.38 AML other m 2021-01-17T00:00:48.39
OX.MPRI.HNN. ML:1.8 0.000548 0.32 AML other m 2021-01-17T00:00:48.39
OX.MPRI.HHE. ML:1.7 0.0004965 1.04 AML other m 2021-01-17T00:00:48.78
IV.STAL.HHN. ML:1.8 0.000349 0.16 AML other m 2021-01-17T00:00:49.52
RF.GEPF.HHE. ML:1.6 0.0003235 1.36 AML other m 2021-01-17T00:00:49.97
IV.FVI.HHN. ML:1.7 0.000317 0.08 AML other m 2021-01-17T00:00:50.16
IV.FVI.HHE. ML:1.8 0.000383 0.62 AML other m 2021-01-17T00:00:50.49
IV.STAL.HNN. ML:1.9 0.0005355 0.42 AML other m 2021-01-17T00:00:50.72
IV.STAL.HNE. ML:1.8 0.0004 0.48 AML other m 2021-01-17T00:00:51.40
NI.VINO.HHE. ML:1.6 0.000211 0.96 AML other m 2021-01-17T00:00:51.03
NI.VINO.HHN. ML:1.5 0.000179 0.44 AML other m 2021-01-17T00:00:52.22
IV.STAL.HHE. ML:1.7 0.0002905 1.06 AML other m 2021-01-17T00:00:53.13
OX.CIMO.HHN. ML:1.1 4.595E-5 0.82 AML other m 2021-01-17T00:00:54.45
OX.ACOM.HNE. ML:2 0.0003325 0.32 AML other m 2021-01-17T00:00:56.67
OX.ACOM.HHE. ML:2 0.0003165 0.3 AML other m 2021-01-17T00:00:56.66
OX.ACOM.HNN. ML:1.9 0.0002535 0.68 AML other m 2021-01-17T00:00:57.65
OX.CIMO.HHE. ML:1 3.46E-5 0.52 AML other m 2021-01-17T00:00:57.34
OX.ACOM.HHN. ML:1.9 0.0002195 0.48 AML other m 2021-01-17T00:00:57.65
IV.FREG.EHE. ML:1.7 8.525E-5 0.42 AML other m 2021-01-17T00:01:05.13
OX.SABO.HHN. ML:1.8 0.000114 0.82 AML other m 2021-01-17T00:01:06.46
OX.SABO.HNN. ML:2.4 0.000441 1.42 AML other m 2021-01-17T00:01:06.18
OX.SABO.HHE. ML:1.8 0.00010715 1.46 AML other m 2021-01-17T00:01:07.08
OX.SABO.HNE. ML:2.4 0.0004595 1.48 AML other m 2021-01-17T00:01:07.08
IV.FREG.EHN. ML:1.5 6.135E-5 1.66 AML other m 2021-01-17T00:01:11.14
MN.TRI.HHN. ML:1.4 2.6E-5 1.42 AML other m 2021-01-17T00:01:15.98
MN.TRI.HHE. ML:1.7 5.27E-5 0.62 AML other m 2021-01-17T00:01:15.52
SL.LJU.BHN. ML:2.8 0.000391 0.2 AML other m 2021-01-17T00:01:23.40
ST.PANI.EHN. ML:2.4 0.0001755 0.26 AML other m 2021-01-17T00:01:24.03
ST.PANI.EHE. ML:2.2 0.0001107 0.32 AML other m 2021-01-17T00:01:24.31
SL.LJU.BHE. ML:2.6 0.000274 1.5 AML other m 2021-01-17T00:01:24.85
ST.DOSS.HHN. ML:2.4 0.000123 1.02 AML other m 2021-01-17T00:01:28.16
ST.DOSS.HHE. ML:2.2 8.355E-5 1.08 AML other m 2021-01-17T00:01:29.69
ST.VARA.EHE. ML:2.4 0.00010425 1.18 AML other m 2021-01-17T00:01:36.63
ST.VARA.EHN. ML:2.2 6.95E-5 0.88 AML other m 2021-01-17T00:01:36.54
IV.MAGA.HHE. ML:2.5 9.55E-5 0.5 AML other m 2021-01-17T00:01:40.20
IV.MAGA.HHN. ML:2.2 4.54E-5 0.42 AML other m 2021-01-17T00:01:41.31
IV.FIR.HHE. ML:3.1 0.0001255 0.06 AML other m 2021-01-17T00:02:03.76
IV.FIR.HHN. ML:3.1 0.0001375 0.1 AML other m 2021-01-17T00:02:10.15
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