Earthquake with magnitude of ML 0.4 on date 03-02-2021 and time 17:36:21 (Italy) in region 3 km SW Amaro (UD)

A magnitude ML 0.4 earthquake occured in region: 3 km SW Amaro (UD), on

  • 03-02-2021 16:36:21 (UTC)
  • 03-02-2021 17:36:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.35, 13.08 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Amaro UD 3 823 823
Cavazzo Carnico UD 4 1052 1875
Bordano UD 4 754 2629
Venzone UD 5 2117 4746
Trasaghis UD 7 2227 6973
Verzegnis UD 8 863 7836
Tolmezzo UD 8 10440 18276
Gemona del Friuli UD 9 10964 29240
Osoppo UD 10 2936 32176
Moggio Udinese UD 12 1714 33890
Resiutta UD 12 309 34199
Montenars UD 13 538 34737
Zuglio UD 13 595 35332
Artegna UD 13 2885 38217
Lauco UD 14 729 38946
Villa Santina UD 14 2233 41179
Arta Terme UD 15 2171 43350
Magnano in Riviera UD 15 2336 45686
Vito d'Asio PN 15 769 46455
Buja UD 16 6563 53018
Forgaria nel Friuli UD 16 1786 54804
Enemonzo UD 17 1319 56123
Preone UD 17 246 56369
Lusevera UD 17 643 57012
Clauzetto PN 18 380 57392
Majano UD 18 5945 63337
Resia UD 18 1033 64370
Raveo UD 18 458 64828
Tarcento UD 19 9012 73840
Treppo Grande UD 19 1708 75548
Chiusaforte UD 19 672 76220
Sutrio UD 20 1332 77552

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Udine (99169 inhabitants)
54 Km NE of Pordenone (51229 inhabitants)
94 Km NW of Trieste (204420 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 0.4 2021-02-03
16:36:21
46.35 13.07 6 2021-02-03
16:44:43
Sala Sismica INGV-Roma 86811771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-03 16:36:21 ± 0.12
Latitude 46.35 ± 0.00
Longitude 13.07 ± 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 86811771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 446
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.2662
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:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 86811771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-03 16:44:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.PLRO.HNZ. 2021-02-03T16:36:30.11 0.6 undecidable manual S 14 0.2077 104 0.26 47
OX.BAD.HNZ. 2021-02-03T16:36:28.14 0.6 undecidable manual S 134 0.1628 108 -0.06 49
NI.VINO.HHZ. 2021-02-03T16:36:28.21 0.1 undecidable manual S 124 0.1673 108 -0.15 97
IV.STAL.HHZ. 2021-02-03T16:36:27.36 1.0 undecidable manual P 251 0.2662 101 -0.28 23
OX.MPRI.HHZ. 2021-02-03T16:36:26.88 0.6 undecidable manual S 209 0.1223 114 0.14 49
OX.PLRO.HNZ. 2021-02-03T16:36:26.14 0.1 undecidable manual P 14 0.2077 104 -0.22 94
IV.PTCC.HHZ. 2021-02-03T16:36:26.65 0.6 undecidable manual P 73 0.2014 105 0.41 45
OX.CLUD.HHZ. 2021-02-03T16:36:25.15 0.6 undecidable manual P 309 0.1727 107 -0.46 45
OX.FUSE.HNZ. 2021-02-03T16:36:25.40 0.3 undecidable manual S 323 0.0836 122 -0.02 76
OX.BAD.HNZ. 2021-02-03T16:36:25.41 0.3 undecidable manual P 134 0.1628 108 0 75
NI.VINO.HHZ. 2021-02-03T16:36:25.46 1.0 undecidable manual P 124 0.1673 108 -0.04 25
OX.MPRI.HHZ. 2021-02-03T16:36:24.72 0.3 positive manual P 209 0.1223 114 0.15 73
OX.BOO.HNZ. 2021-02-03T16:36:23.80 0.6 undecidable manual S 150 0.0324 149 -0.2 49
OX.BOO.HNZ. 2021-02-03T16:36:23.09 0.1 undecidable manual P 150 0.0324 149 0.1 100
OX.FUSE.HNZ. 2021-02-03T16:36:23.94 0.1 undecidable manual P 323 0.0836 122 0.14 98
RF.GEPF.HHZ. 2021-02-03T16:36:23.92 0.6 undecidable manual P 149 0.0845 122 0.1 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHE. ML:0.2 3.0436915E-5 0.128 AML other m 2021-02-03T16:36:25.44
RF.GEPF.HHN. ML:0.2 2.9168195E-5 0.1408 AML other m 2021-02-03T16:36:25.57
OX.MPRI.HHE. ML:0.5 3.71894735E-5 0.2176 AML other m 2021-02-03T16:36:27.14
OX.MPRI.HHN. ML:0.5 3.5948007E-5 0.2176 AML other m 2021-02-03T16:36:27.56
OX.MPRI.HNE. ML:0.5 4.0260525E-5 0.8064 AML other m 2021-02-03T16:36:25.75
OX.MPRI.HNN. ML:0.6 5.0952675E-5 0.6656 AML other m 2021-02-03T16:36:29.13
OX.CLUD.HNE. ML:0.6 3.109821E-5 0.704 AML other m 2021-02-03T16:36:34.00
OX.CLUD.HNN. ML:0.6 3.4112135E-5 1.0368 AML other m 2021-02-03T16:36:33.48
OX.CLUD.HHE. ML:-0.2 7.3605575E-6 0.2816 AML other m 2021-02-03T16:36:29.48
OX.CLUD.HHN. ML:0.1 9.2357095E-6 0.8064 AML other m 2021-02-03T16:36:35.07
NI.VINO.HHE. ML:0.4 1.9553705E-5 0.1792 AML other m 2021-02-03T16:36:28.32
NI.VINO.HHN. ML:0.5 2.3313743E-5 0.2048 AML other m 2021-02-03T16:36:28.44
IV.STAL.HNE. ML:1.3 9.8012745E-5 0.5248 AML other m 2021-02-03T16:36:34.02
IV.STAL.HNN. ML:1.4 0.000120554945 0.832 AML other m 2021-02-03T16:36:27.71
IV.STAL.HHE. ML:0.5 1.2664289E-5 0.3968 AML other m 2021-02-03T16:36:34.95
IV.STAL.HHN. ML:0.3 1.17690095E-5 0.1536 AML other m 2021-02-03T16:36:33.63
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