Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 25-11-2021 and time 02:37:31 (UTC) in region 6 km NW Fregona (TV)

A magnitude ML 0.9 earthquake occured in region: 6 km NW Fregona (TV), on

  • 25-11-2021 02:37:31 (UTC)
  • 25-11-2021 03:37:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.0560, 12.3120 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Fregona TV 6 3013 3013
Vittorio Veneto TV 7 28232 31245
Revine Lago TV 9 2208 33453
Sarmede TV 10 3086 36539
Cappella Maggiore TV 10 4710 41249
Tarzo TV 11 4399 45648
Limana BL 11 5209 50857
Belluno BL 12 35870 86727
Tambre BL 12 1371 88098
Alpago BL 13 6994 95092
Colle Umberto TV 13 5111 100203
Ponte nelle Alpi BL 13 8363 108566
Trichiana BL 14 4868 113434
Chies d'Alpago BL 14 1377 114811
Cordignano TV 14 7020 121831
Caneva PN 14 6424 128255
Polcenigo PN 15 3163 131418
Godega di Sant'Urbano TV 15 6062 137480
San Fior TV 15 6970 144450
Cison di Valmarino TV 16 2647 147097
Orsago TV 16 3873 150970
Soverzene BL 17 389 151359
San Pietro di Feletto TV 17 5321 156680
Refrontolo TV 17 1747 158427
Budoia PN 17 2569 160996
Sedico BL 18 9997 170993
Mel BL 18 5984 176977
San Vendemiano TV 18 10054 187031
Sacile PN 19 19837 206868
Follina TV 19 3873 210741
Conegliano TV 19 34891 245632
Fontanafredda PN 20 12205 257837

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of Pordenone (51229 inhabitants)
44 Km N of Treviso (83731 inhabitants)
69 Km N of Venezia (263352 inhabitants)
71 Km W of Udine (99169 inhabitants)
80 Km NE of Padova (210401 inhabitants)
82 Km NE of Vicenza (112953 inhabitants)
88 Km SE of Bolzano (106441 inhabitants)
92 Km E of Trento (117317 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 0.9 2021-11-25
02:37:31		 46.0565 12.3123 10 2022-03-30
13:04:36		 Bollettino Sismico Italiano INGV 100869551
Reviewed
Rev100 		ML 0.7 2021-11-25
02:37:31		 46.084 12.3197 0 2021-11-25
02:44:05		 Sala Sismica INGV-Roma 97770061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-25 02:37:31 ± 0.14
Latitude 46.0565 ± 0.0099
Longitude 12.3123 ± 0.0091
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100869551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1010
Semi-minor axis of confidence ellipse (meter) 700
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
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) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.34264
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 100869551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-11 11:31:27

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 97770061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 02:44:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.STAL.HHN. 2021-11-25T02:37:44.24 0.6 undecidable manual S 53 38.0286 50 0.19 46
OX.CIMO.HHZ. 2021-11-25T02:37:41.13 0.6 undecidable manual S 20 30.0477 50 -0.79 38
OX.MLN.HNE. 2021-11-25T02:37:40.91 0.6 undecidable manual S 66 25.4523 50 0.21 47
IV.STAL.HHN. 2021-11-25T02:37:38.72 0.3 undecidable manual P 53 38.0286 50 0.07 71
NI.POLC.HHZ. 2021-11-25T02:37:38.21 0.6 undecidable manual S 103 14.874 125 0.65 41
OX.VARN.HHZ. 2021-11-25T02:37:38.44 0.3 undecidable manual S 246 17.4714 121 0.11 72
OX.CIMO.HHZ. 2021-11-25T02:37:37.15 0.1 undecidable manual P 20 30.0477 50 -0.27 90
IT.PNAL.HNE. 2021-11-25T02:37:37.01 0.6 undecidable manual S 355 12.9759 129 -0.02 48
OX.MLN.HNE. 2021-11-25T02:37:37.00 0.3 undecidable manual P 66 25.4523 50 0.28 69
NI.POLC.HHZ. 2021-11-25T02:37:35.30 0.3 undecidable manual P 103 14.874 125 0.39 68
OX.VARN.HHZ. 2021-11-25T02:37:35.65 0.1 undecidable manual P 246 17.4714 121 0.3 93
OX.CAE.HHZ. 2021-11-25T02:37:35.99 0.3 undecidable manual S 119 10.9779 133 -0.53 67
IT.PNAL.HNE. 2021-11-25T02:37:34.85 0.6 undecidable manual P 355 12.9759 129 0.25 46
IV.FREG.EHZ. 2021-11-25T02:37:34.45 0.3 undecidable manual S 179 4.995 154 -0.82 60
OX.CAE.HHZ. 2021-11-25T02:37:34.38 0.3 undecidable manual P 119 10.9779 133 0.07 73
IV.FREG.EHZ. 2021-11-25T02:37:33.59 0.1 undecidable manual P 179 4.995 154 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FREG.HNN. ML:1.8 0.0009468772000000001 1.28 AML other m 2021-11-25T02:37:32.24
IV.FREG.HNE. ML:1.7 0.0008253304499999999 0.8 AML other m 2021-11-25T02:37:34.42
IV.FREG.EHE. ML:1.2 0.0002437232 0.3808 AML other m 2021-11-25T02:37:35.01
IV.FREG.EHN. ML:1.3 0.0003363258 0.4016 AML other m 2021-11-25T02:37:36.70
OX.CAE.HHE. ML:1.1 0.00014450000000000002 1.62 AML other m 2021-11-25T02:37:36.01
OX.CAE.HHN. ML:0.8 0.00007694999999999999 0.42 AML other m 2021-11-25T02:37:37.28
NI.POLC.HHN. ML:1.0 0.00010639185 0.4608 AML other m 2021-11-25T02:37:39.55
OX.VARN.HHE. ML:0.7 0.0000384071 0.1408 AML other m 2021-11-25T02:37:39.83
OX.VARN.HHN. ML:0.6 0.00003258046 1.72 AML other m 2021-11-25T02:37:41.97
OX.CIMO.HHE. ML:0.0 0.000006455716 0.0992 AML other m 2021-11-25T02:37:41.44
NI.POLC.HHE. ML:1.0 0.00009725543 0.48 AML other m 2021-11-25T02:37:41.26
OX.CIMO.HNN. ML:0.6 0.000022195851575000003 0.56 AML other m 2021-11-25T02:37:41.95
OX.CIMO.HHN. ML:0.3 0.000007845018500000001 0.1392 AML other m 2021-11-25T02:37:43.12
OX.CIMO.HNE. ML:0.7 0.000027424345 1.2992 AML other m 2021-11-25T02:37:44.78
OX.VARN.HNE. ML:0.7 0.00004022146999999999 0.3008 AML other m 2021-11-25T02:37:44.49
OX.VARN.HNN. ML:0.6 0.000034343119999999995 0.5408 AML other m 2021-11-25T02:37:46.76
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download