Earthquake with magnitude of ML 0.8 on date 20-01-2022 and time 11:43:24 (Italy) in region 2 km N Trasaghis (UD)

A magnitude ML 0.8 earthquake occured in region: 2 km N Trasaghis (UD), on

  • 20-01-2022 10:43:24 (UTC)
  • 20-01-2022 11:43:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.3040, 13.0730 at 8 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
Trasaghis UD 2 2227 2227
Bordano UD 3 754 2981
Osoppo UD 5 2936 5917
Gemona del Friuli UD 6 10964 16881
Venzone UD 6 2117 18998
Cavazzo Carnico UD 8 1052 20050
Amaro UD 8 823 20873
Artegna UD 9 2885 23758
Montenars UD 10 538 24296
Buja UD 11 6563 30859
Verzegnis UD 11 863 31722
Magnano in Riviera UD 12 2336 34058
Vito d'Asio PN 12 769 34827
Forgaria nel Friuli UD 12 1786 36613
Tolmezzo UD 12 10440 47053
Majano UD 13 5945 52998
Treppo Grande UD 14 1708 54706
Clauzetto PN 15 380 55086
Tarcento UD 15 9012 64098
Lusevera UD 15 643 64741
Moggio Udinese UD 15 1714 66455
Resiutta UD 15 309 66764
Ragogna UD 16 2909 69673
Colloredo di Monte Albano UD 16 2223 71896
Pinzano al Tagliamento PN 16 1525 73421
San Daniele del Friuli UD 16 8013 81434
Cassacco UD 17 2938 84372
Villa Santina UD 17 2233 86605
Lauco UD 17 729 87334
Castelnovo del Friuli PN 17 880 88214
Zuglio UD 18 595 88809
Nimis UD 19 2740 91549
Preone UD 19 246 91795
Tricesimo UD 19 7600 99395
Enemonzo UD 19 1319 100714
Arta Terme UD 19 2171 102885
Travesio PN 19 1776 104661
Resia UD 20 1033 105694
Rive d'Arcano UD 20 2444 108138

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Udine (99169 inhabitants)
50 Km NE of Pordenone (51229 inhabitants)
90 Km NW of Trieste (204420 inhabitants)
95 Km NE of Treviso (83731 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.8 2022-01-20
10:43:24
46.3037 13.0727 8 2022-01-20
10:50:17
Sala Sismica INGV-Roma 99973851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-20 10:43:24 ± 0.11
Latitude 46.3037 ± 0.0036
Longitude 13.0727 ± 0.0039
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 99973851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 374
Semi-minor axis of confidence ellipse (meter) 125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25361
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:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 99973851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-20 10:50:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.STAL.HHZ. 2022-01-20T10:43:34.31 0.6 undecidable manual S 260 0.2536 105 -0.37 45
IV.PTCC.HHZ. 2022-01-20T10:43:33.00 0.6 undecidable manual S 62 0.2203 108 -0.42 45
NI.VINO.HHZ. 2022-01-20T10:43:31.03 0.6 undecidable manual S 110 0.1484 115 0.17 48
OX.BAD.HHE. 2022-01-20T10:43:30.41 0.3 undecidable manual S 120 0.1376 117 -0.06 74
IV.STAL.HHZ. 2022-01-20T10:43:30.03 0.3 positive manual P 260 0.2536 105 -0.35 68
OX.CLUD.HHZ. 2022-01-20T10:43:29.33 1.0 undecidable manual P 0.03 0.4
OX.FUSE.HHZ. 2022-01-20T10:43:29.98 0.6 undecidable manual S 336 0.1205 120 0.07 49
IV.PTCC.HHZ. 2022-01-20T10:43:29.58 0.3 undecidable manual P 62 0.2203 108 -0.08 73
NI.PALA.HHZ. 2022-01-20T10:43:29.84 0.1 undecidable manual S 240 0.1178 121 0.01 100
OX.MPRI.HHZ. 2022-01-20T10:43:28.76 0.1 undecidable manual S 223 0.0863 129 -0.04 100
NI.VINO.HHZ. 2022-01-20T10:43:28.16 0.6 negative manual P 110 0.1484 115 -0.02 50
OX.MPRI.HHZ. 2022-01-20T10:43:27.16 0.3 positive manual P 223 0.0863 129 0.17 73
OX.BOO.HHE. 2022-01-20T10:43:27.13 0.6 undecidable manual S 48 0.0234 161 -0.26 48
OX.BAD.HHE. 2022-01-20T10:43:27.95 0.3 undecidable manual P 120 0.1376 117 0 75
NI.PALA.HHZ. 2022-01-20T10:43:27.71 0.1 negative manual P 240 0.1178 121 0.13 98
RF.GEPF.HHZ. 2022-01-20T10:43:27.85 0.3 undecidable manual S 122 0.0540 143 -0.09 75
OX.FUSE.HHZ. 2022-01-20T10:43:27.88 0.1 undecidable manual P 336 0.1205 120 0.24 95
OX.BOO.HHE. 2022-01-20T10:43:26.29 0.1 undecidable manual P 48 0.0234 161 0.11 100
RF.GEPF.HHZ. 2022-01-20T10:43:26.70 0.1 negative manual P 122 0.0540 143 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHN. ML:1.4 0.0004145 1.8 AML other m 2022-01-20T10:43:28.08
RF.GEPF.HHE. ML:1.2 0.00023299999999999997 0.18 AML other m 2022-01-20T10:43:28.17
OX.MPRI.HHN. ML:0.9 0.000122 0.44 AML other m 2022-01-20T10:43:28.76
OX.MPRI.HHE. ML:0.8 0.0001048 0.4 AML other m 2022-01-20T10:43:29.38
NI.PALA.HHN. ML:0.9 0.0000959 0.18 AML other m 2022-01-20T10:43:30.26
NI.PALA.HHE. ML:1.0 0.00011549999999999999 0.4 AML other m 2022-01-20T10:43:30.49
OX.MPRI.HNE. ML:0.8 0.000097544715 0.4032 AML other m 2022-01-20T10:43:29.38
NI.VINO.HHE. ML:0.3 0.000018722464500000002 0.2624 AML other m 2022-01-20T10:43:31.61
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download