Earthquake with magnitude of ML 0.6 on date 22-12-2020 and time 11:05:22 (UTC) in region 3 km NE Tolmezzo (UD)

A magnitude ML 0.6 earthquake occured in region: 3 km NE Tolmezzo (UD), on

  • 22-12-2020 11:05:22 (UTC)
  • 22-12-2020 12:05:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.42, 13.05 at 12 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
Tolmezzo UD 3 10440 10440
Zuglio UD 5 595 11035
Verzegnis UD 6 863 11898
Cavazzo Carnico UD 6 1052 12950
Arta Terme UD 6 2171 15121
Amaro UD 6 823 15944
Lauco UD 9 729 16673
Villa Santina UD 10 2233 18906
Sutrio UD 11 1332 20238
Moggio Udinese UD 11 1714 21952
Venzone UD 12 2117 24069
Paluzza UD 12 2217 26286
Treppo Carnico UD 13 618 26904
Bordano UD 13 754 27658
Cercivento UD 13 679 28337
Enemonzo UD 13 1319 29656
Ligosullo UD 13 116 29772
Paularo UD 13 2623 32395
Resiutta UD 14 309 32704
Raveo UD 14 458 33162
Preone UD 14 246 33408
Ravascletto UD 15 536 33944
Trasaghis UD 16 2227 36171
Ovaro UD 16 1922 38093
Comeglians UD 17 516 38609
Socchieve UD 17 908 39517
Gemona del Friuli UD 18 10964 50481
Osoppo UD 19 2936 53417
Ampezzo UD 20 1006 54423

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of Udine (99169 inhabitants)
60 Km NE of Pordenone (51229 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2020-12-22
11:05:22
46.42 13.05 12 2020-12-22
11:09:36
Sala Sismica INGV-Roma 85624621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-22 11:05:22 ± 0.07
Latitude 46.42 ± 0.01
Longitude 13.05 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85624621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 494
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.25451
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 85624621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-22 11:09:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTCC.HHZ. 2020-12-22T11:05:31.03 0.3 undecidable manual S 94 0.2095 97 -0.15 71
OX.MPRI.HHZ. 2020-12-22T11:05:30.39 0.1 undecidable manual S 193 0.1862 99 -0.09 98
IV.FVI.HHZ. 2020-12-22T11:05:28.38 0.3 undecidable manual P 313 0.2545 95 0.12 71
OX.CLUD.HHZ. 2020-12-22T11:05:28.42 0.1 undecidable manual S 287 0.1214 115 -0.21 95
OX.MPRI.HHZ. 2020-12-22T11:05:27.12 0.1 undecidable manual P 193 0.1862 99 0.02 97
IV.PTCC.HHZ. 2020-12-22T11:05:27.50 0.3 undecidable manual P 94 0.2095 97 0 73
NI.VINO.HHZ. 2020-12-22T11:05:27.81 0.3 undecidable manual P 137 0.2293 96 -0.02 73
OX.FUSE.HHZ. 2020-12-22T11:05:26.83 0.1 undecidable manual S 257 0.0351 158 -0.04 100
OX.CLUD.HHZ. 2020-12-22T11:05:26.13 0.3 undecidable manual P 287 0.1214 115 0.1 74
OX.FUSE.HHZ. 2020-12-22T11:05:25.25 0.1 undecidable manual P 257 0.0351 158 0.24 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CLUD.HHE. ML:0.3 2.16369425E-5 0.2944 AML other m 2020-12-22T11:05:28.70
OX.CLUD.HHN. ML:0.3 2.0956809E-5 0.16 AML other m 2020-12-22T11:05:28.84
OX.MPRI.HHE. ML:0.8 4.1919405E-5 0.1024 AML other m 2020-12-22T11:05:30.59
OX.MPRI.HHN. ML:0.8 3.959384E-5 0.1216 AML other m 2020-12-22T11:05:30.82
OX.MPRI.HNN. ML:0.7 3.6053945E-5 0.0768 AML other m 2020-12-22T11:05:30.60
IV.PTCC.HHE. ML:0.7 2.951562E-5 0.1792 AML other m 2020-12-22T11:05:31.59
IV.PTCC.HHN. ML:0.4 1.7148007E-5 0.1024 AML other m 2020-12-22T11:05:32.03
NI.VINO.HHE. ML:0.6 1.7782595E-5 0.16 AML other m 2020-12-22T11:05:32.05
NI.VINO.HHN. ML:0 7.1462335E-6 0.1408 AML other m 2020-12-22T11:05:31.96
IV.FVI.HHE. ML:1 4.5079795E-5 0.0768 AML other m 2020-12-22T11:05:32.70
IV.FVI.HHN. ML:1 4.6889185E-5 0.1024 AML other m 2020-12-22T11:05:32.82
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