Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 16-12-2021 and time 19:18:49 (UTC) in region 2 km W Raveo (UD)

A magnitude ML 0.3 earthquake occured in region: 2 km W Raveo (UD), on

  • 16-12-2021 19:18:49 (UTC)
  • 16-12-2021 20:18:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4370, 12.8450 at 10 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
Raveo UD 2 458 458
Enemonzo UD 4 1319 1777
Socchieve UD 4 908 2685
Ampezzo UD 4 1006 3691
Preone UD 5 246 3937
Ovaro UD 6 1922 5859
Villa Santina UD 7 2233 8092
Lauco UD 7 729 8821
Comeglians UD 9 516 9337
Prato Carnico UD 10 904 10241
Sauris UD 11 416 10657
Ravascletto UD 12 536 11193
Rigolato UD 13 448 11641
Verzegnis UD 13 863 12504
Tolmezzo UD 14 10440 22944
Sutrio UD 14 1332 24276
Forni di Sotto UD 14 600 24876
Zuglio UD 14 595 25471
Arta Terme UD 15 2171 27642
Tramonti di Sopra PN 15 321 27963
Cercivento UD 15 679 28642
Paluzza UD 17 2217 30859
Cavazzo Carnico UD 17 1052 31911
Tramonti di Sotto PN 17 387 32298
Forni Avoltri UD 17 588 32886
Treppo Carnico UD 19 618 33504
Sappada BL 19 1317 34821

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km NW of Udine (99169 inhabitants)
55 Km N of Pordenone (51229 inhabitants)
97 Km NE of Treviso (83731 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
Reviewed
Rev100 		ML 0.3 2021-12-16
19:18:49		 46.4373 12.8447 10 2021-12-16
19:29:32		 Sala Sismica INGV-Roma 98598171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-16 19:18:49 ± 0.18
Latitude 46.4373 ± 0.0072
Longitude 12.8447 ± 0.0104
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98598171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 295
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.23652
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 98598171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-16 19:29:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.BOO.HHE. 2021-12-16T19:18:58.01 0.6 undecidable manual S 124 23.3544 114 -0.58 45
IV.STAL.HHZ. 2021-12-16T19:18:57.93 0.6 undecidable manual S 208 22.1556 115 -0.27 49
IV.FVI.HHZ. 2021-12-16T19:18:56.25 0.6 undecidable manual S 345 18.3705 119 -0.76 42
OX.FUSE.HHZ. 2021-12-16T19:18:55.56 0.6 undecidable manual S 102 12.2766 130 0.3 49
OX.PLRO.HHE. 2021-12-16T19:18:55.58 0.3 undecidable manual P 62 26.2515 50 0.28 73
OX.MPRI.HHE. 2021-12-16T19:18:55.11 0.3 undecidable manual P 153 24.3534 50 0.11 75
IV.STAL.HHZ. 2021-12-16T19:18:54.63 0.3 undecidable manual P 208 22.1556 115 0.02 77
OX.BOO.HHE. 2021-12-16T19:18:54.16 0.3 undecidable manual P 124 23.3544 114 -0.68 64
NI.PURA.HHE. 2021-12-16T19:18:54.32 0.6 undecidable manual S 261 7.9809 142 0.09 51
OX.CLUD.HHZ. 2021-12-16T19:18:53.49 0.3 undecidable manual S 52 3.5964 161 0 79
OX.FUSE.HHZ. 2021-12-16T19:18:53.26 0.3 undecidable manual P 102 12.2766 130 0.34 73
IV.FVI.HHZ. 2021-12-16T19:18:53.77 0.1 undecidable manual P 345 18.3705 119 -0.16 100
OX.CLUD.HHZ. 2021-12-16T19:18:52.21 0.1 positive manual P 52 3.5964 161 0.32 99
NI.PURA.HHE. 2021-12-16T19:18:52.58 0.1 undecidable manual P 261 7.9809 142 0.26 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.STAL.HHN. ML:0.7 0.000032400209999999996 0.1152 AML other m 2021-12-16T19:18:58.14
IV.STAL.HHE. ML:0.9 0.000048599999999999995 0.16 AML other m 2021-12-16T19:18:58.89
OX.CLUD.HHE. ML:0.2 0.000027046645000000003 0.0896 AML other m 2021-12-16T19:18:53.73
OX.CLUD.HHN. ML:0.2 0.000023998685 0.1024 AML other m 2021-12-16T19:18:53.63
OX.CLUD.HNE. ML:0.2 0.00002538127 0.0896 AML other m 2021-12-16T19:18:53.68
OX.CLUD.HNN. ML:0.3 0.000037471295 1.088 AML other m 2021-12-16T19:18:52.13
OX.FUSE.HHE. ML:0.3 0.00001753870075 0.1408 AML other m 2021-12-16T19:18:55.68
OX.FUSE.HHN. ML:0.5 0.000033820565 0.1792 AML other m 2021-12-16T19:18:55.72
IV.FVI.HHE. ML:0.4 0.000018253255 0.1664 AML other m 2021-12-16T19:18:56.70
IV.FVI.HHN. ML:-0.2 0.000006814713100000001 0.1152 AML other m 2021-12-16T19:18:56.38
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