Earthquake with magnitude of ML 0.6 on date 21-02-2021 and time 12:40:18 (Italy) in region 2 km S Zuglio (UD)

A magnitude ML 0.6 earthquake occured in region: 2 km S Zuglio (UD), on

  • 21-02-2021 11:40:18 (UTC)
  • 21-02-2021 12:40:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.44, 13.02 at 11 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.

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 2 595 595
Arta Terme UD 4 2171 2766
Tolmezzo UD 4 10440 13206
Verzegnis UD 6 863 14069
Lauco UD 7 729 14798
Villa Santina UD 8 2233 17031
Cavazzo Carnico UD 8 1052 18083
Sutrio UD 9 1332 19415
Amaro UD 9 823 20238
Paluzza UD 10 2217 22455
Cercivento UD 10 679 23134
Treppo Carnico UD 11 618 23752
Enemonzo UD 12 1319 25071
Ligosullo UD 12 116 25187
Raveo UD 12 458 25645
Ravascletto UD 12 536 26181
Paularo UD 12 2623 28804
Preone UD 13 246 29050
Ovaro UD 13 1922 30972
Moggio Udinese UD 14 1714 32686
Comeglians UD 15 516 33202
Venzone UD 15 2117 35319
Bordano UD 15 754 36073
Socchieve UD 16 908 36981
Resiutta UD 16 309 37290
Ampezzo UD 18 1006 38296
Rigolato UD 18 448 38744
Trasaghis UD 18 2227 40971
Prato Carnico UD 19 904 41875

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Udine (99169 inhabitants)
61 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 0.6 2021-02-21
11:40:18
46.44 13.02 11 2021-02-21
11:48:12
Sala Sismica INGV-Roma 87354891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-21 11:40:18 ± 0.04
Latitude 46.44 ± 0.00
Longitude 13.02 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87354891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 261
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.25631
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 87354891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-21 11:48:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.BAD.HHE. 2021-02-21T11:40:28.69 0.3 undecidable manual S 144 0.2563 50 -0.06 73
NI.VINO.HHE. 2021-02-21T11:40:28.71 0.3 undecidable manual S 137 0.2545 50 0 74
IV.PTCC.HHE. 2021-02-21T11:40:27.85 0.3 undecidable manual S 98 0.2293 50 -0.12 72
IV.FVI.HHZ. 2021-02-21T11:40:27.75 0.1 undecidable manual S 313 0.2293 50 -0.21 95
NI.PALA.HHZ. 2021-02-21T11:40:27.45 0.3 undecidable manual S 200 0.2068 50 0.15 72
OX.MPRI.HHZ. 2021-02-21T11:40:26.87 0.3 undecidable manual S 187 0.2005 50 -0.25 71
OX.PLRO.HHE. 2021-02-21T11:40:25.06 0.3 undecidable manual S 38 0.1385 125 -0.12 74
IV.PTCC.HHE. 2021-02-21T11:40:24.29 0.3 undecidable manual P 98 0.2293 50 0.25 70
OX.BOO.HHE. 2021-02-21T11:40:24.94 0.3 undecidable manual S 157 0.1313 127 -0.02 75
IV.FVI.HHZ. 2021-02-21T11:40:24.16 0.6 undecidable manual P 313 0.2293 50 0.13 48
OX.BAD.HHE. 2021-02-21T11:40:24.30 0.3 undecidable manual P 144 0.2563 50 -0.19 71
NI.VINO.HHE. 2021-02-21T11:40:24.40 0.3 undecidable manual P 137 0.2545 50 -0.07 73
NI.PALA.HHZ. 2021-02-21T11:40:23.84 0.3 undecidable manual P 200 0.2068 50 0.19 72
OX.MPRI.HHZ. 2021-02-21T11:40:23.79 0.3 undecidable manual P 187 0.2005 50 0.24 71
OX.CLUD.HHZ. 2021-02-21T11:40:23.97 0.1 undecidable manual S 280 0.0998 134 -0.06 100
OX.PLRO.HHE. 2021-02-21T11:40:22.61 0.1 undecidable manual P 38 0.1385 125 0.19 97
OX.FUSE.HHZ. 2021-02-21T11:40:22.40 0.1 undecidable manual S 211 0.0306 163 -0.2 98
OX.CLUD.HHZ. 2021-02-21T11:40:22.00 0.6 negative manual P 280 0.0998 134 0.24 48
OX.BOO.HHE. 2021-02-21T11:40:22.24 0.3 undecidable manual P 157 0.1313 127 -0.06 75
OX.FUSE.HHZ. 2021-02-21T11:40:21.08 0.1 positive manual P 211 0.0306 163 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FVI.HHN. ML:0.9 4.635E-5 0.12 AML other m 2021-02-21T11:40:27.86
IV.FVI.HHE. ML:0.8 3.56E-5 0.6 AML other m 2021-02-21T11:40:28.10
OX.MPRI.HHE. ML:0.6 2.4141785E-5 0.256 AML other m 2021-02-21T11:40:27.48
OX.MPRI.HHN. ML:0.5 1.939678E-5 0.1792 AML other m 2021-02-21T11:40:27.63
NI.PALA.HHE. ML:0.6 2.26742855E-5 0.2816 AML other m 2021-02-21T11:40:28.31
NI.PALA.HHN. ML:0.5 1.9865085E-5 0.3008 AML other m 2021-02-21T11:40:27.73
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