Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 17-01-2021 and time 01:58:04 (UTC) in region 2 km NW Verzegnis (UD)

A magnitude ML 1.7 earthquake occured in region: 2 km NW Verzegnis (UD), on

  • 17-01-2021 01:58:04 (UTC)
  • 17-01-2021 02:58:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4, 12.98 at 6 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.

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
Verzegnis UD 2 863 863
Tolmezzo UD 3 10440 11303
Lauco UD 4 729 12032
Villa Santina UD 5 2233 14265
Cavazzo Carnico UD 6 1052 15317
Zuglio UD 8 595 15912
Enemonzo UD 8 1319 17231
Preone UD 9 246 17477
Arta Terme UD 9 2171 19648
Amaro UD 9 823 20471
Raveo UD 9 458 20929
Socchieve UD 12 908 21837
Sutrio UD 13 1332 23169
Ovaro UD 13 1922 25091
Bordano UD 14 754 25845
Cercivento UD 14 679 26524
Venzone UD 14 2117 28641
Ampezzo UD 14 1006 29647
Paluzza UD 15 2217 31864
Ravascletto UD 15 536 32400
Trasaghis UD 15 2227 34627
Comeglians UD 15 516 35143
Treppo Carnico UD 16 618 35761
Moggio Udinese UD 17 1714 37475
Ligosullo UD 17 116 37591
Tramonti di Sopra PN 18 321 37912
Paularo UD 18 2623 40535
Osoppo UD 18 2936 43471
Gemona del Friuli UD 18 10964 54435
Resiutta UD 18 309 54744
Vito d'Asio PN 19 769 55513
Tramonti di Sotto PN 19 387 55900
Rigolato UD 19 448 56348
Prato Carnico UD 19 904 57252
Forgaria nel Friuli UD 20 1786 59038
Clauzetto PN 20 380 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 1.7 2021-01-17
01:58:04		 46.4 12.98 6 2021-01-17
02:05:47		 Sala Sismica INGV-Roma 86315191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-17 01:58:04 ± 0.17
Latitude 46.40 ± 0.01
Longitude 12.98 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86315191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 710
Semi-minor axis of confidence ellipse (meter) 155
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25631
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 86315191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-17 02:05:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
SL.BOJS.BHZ. 2021-01-17T01:59:06.57 3.0 undecidable manual Sg 3.88 0
IV.MURB.HHZ. 2021-01-17T01:58:59.75 3.0 undecidable manual Pg 4.13 0
ST.DOSS.HHZ. 2021-01-17T01:58:51.56 3.0 undecidable manual S 0.1 0
ST.PANI.EHZ. 2021-01-17T01:58:47.65 3.0 undecidable manual S -0.07 0
SL.BOJS.BHZ. 2021-01-17T01:58:38.72 3.0 undecidable manual Pg 1.32 0
ST.OZOL.EHZ. 2021-01-17T01:58:32.09 3.0 undecidable manual P 1.11 0
ST.DOSS.HHZ. 2021-01-17T01:58:31.72 3.0 positive manual P 0.63 0
OX.SABO.HHZ. 2021-01-17T01:58:16.37 3.0 positive manual P -1.88 0
OX.DRE.HHZ. 2021-01-17T01:58:14.46 3.0 undecidable manual P -1.66 0
OX.CIMO.HHZ. 2021-01-17T01:58:12.05 3.0 negative manual P -1.42 0
OX.ACOM.HHZ. 2021-01-17T01:58:12.92 3.0 positive manual P -0.95 0
OX.PLRO.HHE. 2021-01-17T01:58:12.00 0.3 undecidable manual S 38 0.1871 106 0.19 71
OX.MPRI.HHZ. 2021-01-17T01:58:10.78 0.3 undecidable manual S 179 0.1601 109 -0.04 74
IV.PTCC.HHZ. 2021-01-17T01:58:10.02 0.3 undecidable manual P 88 0.2563 102 -0.12 72
IV.STAL.HHZ. 2021-01-17T01:58:09.44 0.3 negative manual P 233 0.2347 103 -0.21 71
OX.BOO.HHE. 2021-01-17T01:58:09.39 0.3 undecidable manual S 135 0.1142 115 0.21 72
NI.VINO.HHZ. 2021-01-17T01:58:09.76 0.1 undecidable manual P 126 0.25 102 -0.24 93
OX.CLUD.HHZ. 2021-01-17T01:58:08.63 0.3 undecidable manual S 309 0.089 121 0.31 71
OX.PLRO.HHE. 2021-01-17T01:58:08.76 0.3 undecidable manual P 38 0.1871 106 0.12 72
IV.FVI.HHZ. 2021-01-17T01:58:08.87 0.3 undecidable manual P 325 0.2392 103 -0.9 56
OX.MPRI.HHZ. 2021-01-17T01:58:08.19 0.1 negative manual P 179 0.1601 109 0.13 97
RF.GEPF.HHZ. 2021-01-17T01:58:08.20 0.1 undecidable manual P 139 0.1664 108 0.01 99
OX.BOO.HHE. 2021-01-17T01:58:07.31 0.3 undecidable manual P 135 0.1142 115 0.19 72
OX.CLUD.HHZ. 2021-01-17T01:58:06.99 0.1 negative manual P 309 0.089 121 0.37 93
OX.FUSE.HNZ. 2021-01-17T01:58:06.01 0.3 undecidable manual S 45 0.0189 161 -0.5 69
OX.FUSE.HNZ. 2021-01-17T01:58:05.69 0.1 negative manual P 45 0.0189 161 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CLUD.HHN. ML:1.6 0.0006905 1.42 AML other m 2021-01-17T01:58:08.28
OX.CLUD.HNE. ML:1.8 0.000907 1.68 AML other m 2021-01-17T01:58:09.84
OX.CLUD.HHE. ML:1.8 0.000934 1.68 AML other m 2021-01-17T01:58:09.84
OX.CLUD.HNN. ML:1.6 0.000673 0.56 AML other m 2021-01-17T01:58:09.28
OX.MPRI.HNN. ML:1.7 0.0004725 1.38 AML other m 2021-01-17T01:58:12.17
OX.MPRI.HHN. ML:1.8 0.000587 1.38 AML other m 2021-01-17T01:58:12.86
OX.MPRI.HNE. ML:1.4 0.000248 0.44 AML other m 2021-01-17T01:58:12.73
OX.MPRI.HHE. ML:1.5 0.000315 0.46 AML other m 2021-01-17T01:58:12.74
RF.GEPF.HHN. ML:1.6 0.000321 1.66 AML other m 2021-01-17T01:58:13.14
IV.STAL.HHN. ML:1.6 0.000251 0.16 AML other m 2021-01-17T01:58:13.53
RF.GEPF.HHE. ML:1.5 0.0002685 1.48 AML other m 2021-01-17T01:58:13.20
NI.VINO.HHE. ML:1.4 0.0001565 0.74 AML other m 2021-01-17T01:58:15.16
NI.VINO.HHN. ML:1.4 0.0001505 0.92 AML other m 2021-01-17T01:58:15.43
IV.PTCC.HHN. ML:1.7 0.000245 1.12 AML other m 2021-01-17T01:58:15.95
IV.PTCC.HHE. ML:1.5 0.000182 1.78 AML other m 2021-01-17T01:58:16.90
IV.STAL.HHE. ML:1.5 0.0001845 0.42 AML other m 2021-01-17T01:58:17.45
OX.ACOM.HHE. ML:1.9 0.0002505 0.26 AML other m 2021-01-17T01:58:20.61
OX.ACOM.HNE. ML:1.9 0.000266 0.26 AML other m 2021-01-17T01:58:20.49
OX.ACOM.HHN. ML:1.8 0.0001935 0.16 AML other m 2021-01-17T01:58:20.92
OX.ACOM.HNN. ML:1.8 0.000219 1.2 AML other m 2021-01-17T01:58:20.93
OX.CIMO.HHE. ML:0.9 2.3E-5 1.22 AML other m 2021-01-17T01:58:21.35
OX.CIMO.HHN. ML:1 3.385E-5 1.16 AML other m 2021-01-17T01:58:21.28
ST.PANI.EHN. ML:2.2 0.0001065 0.72 AML other m 2021-01-17T01:58:48.42
ST.PANI.EHE. ML:2.1 7.335E-5 0.32 AML other m 2021-01-17T01:58:48.18
ST.DOSS.HHN. ML:2.1 6.495E-5 0.34 AML other m 2021-01-17T01:58:53.58
ST.DOSS.HHE. ML:2.1 5.87E-5 1.1 AML other m 2021-01-17T01:58:54.56
ST.OZOL.EHE. ML:2.1 6.31E-5 0.3 AML other m 2021-01-17T01:58:54.46
ST.OZOL.EHN. ML:2 5.07E-5 0.42 AML other m 2021-01-17T01:59:10.46
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