Earthquake with magnitude of ML 2.1 on date 21-10-2021 and time 04:30:24 (Italy) in region 4 km W Moggio Udinese (UD)

A magnitude ML 2.1 earthquake occured in region: 4 km W Moggio Udinese (UD), on

  • 21-10-2021 02:30:24 (UTC)
  • 21-10-2021 04:30:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.4210, 13.1460 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Moggio Udinese UD 4 1714 1714
Amaro UD 7 823 2537
Resiutta UD 7 309 2846
Venzone UD 10 2117 4963
Cavazzo Carnico UD 10 1052 6015
Zuglio UD 10 595 6610
Tolmezzo UD 10 10440 17050
Arta Terme UD 11 2171 19221
Bordano UD 12 754 19975
Verzegnis UD 12 863 20838
Paularo UD 12 2623 23461
Chiusaforte UD 13 672 24133
Dogna UD 13 175 24308
Resia UD 13 1033 25341
Ligosullo UD 14 116 25457
Treppo Carnico UD 15 618 26075
Pontebba UD 16 1433 27508
Paluzza UD 16 2217 29725
Sutrio UD 16 1332 31057
Gemona del Friuli UD 16 10964 42021
Lauco UD 16 729 42750
Trasaghis UD 16 2227 44977
Villa Santina UD 17 2233 47210
Cercivento UD 17 679 47889
Montenars UD 18 538 48427
Osoppo UD 19 2936 51363
Lusevera UD 20 643 52006
Artegna UD 20 2885 54891

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Udine (99169 inhabitants)
64 Km NE of Pordenone (51229 inhabitants)
98 Km NW of Trieste (204420 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
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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.1 2021-10-21
02:30:24
46.4213 13.146 10 2022-03-30
13:04:19
Bollettino Sismico Italiano INGV 98084611
Reviewed
Rev100
ML 2.1 2021-10-21
02:30:24
46.4247 13.134 15 2021-10-21
02:38:04
Sala Sismica INGV-Roma 96818761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-21 02:30:24 ± 0.1
Latitude 46.4213 ± 0.0063
Longitude 13.1460 ± 0.0078
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 98084611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 662
Semi-minor axis of confidence ellipse (meter) 531
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 198
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.85980
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 98084611
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-21 10:46:22

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 96818761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-21 02:38:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PARC.HHZ. 2021-10-21T02:31:55.27 3.0 undecidable manual Sg 8.41 0
IV.EL6.EHZ. 2021-10-21T02:31:45.79 3.0 undecidable manual Sn -7 0
IV.TST01.HHZ. 2021-10-21T02:31:41.16 3.0 negative manual Pn 4.31 0
IV.VAGA.HNZ. 2021-10-21T02:31:39.77 3.0 undecidable manual Pn -1.34 0
IV.GAVE.EHZ. 2021-10-21T02:31:33.84 3.0 negative manual Pg 10.97 0
IV.MURB.HNZ. 2021-10-21T02:31:21.03 3.0 undecidable manual Pg 5.61 0
IV.OSSC.HHZ. 2021-10-21T02:31:18.70 3.0 undecidable manual Pn 3.15 0
IV.CSP1.EHZ. 2021-10-21T02:31:15.37 3.0 negative manual Pn -1.95 0
IV.CPGN.EHZ. 2021-10-21T02:31:04.40 3.0 undecidable manual Pn -4.11 0
IV.MAGA.HHZ. 2021-10-21T02:30:59.44 0.3 undecidable manual P 251 1.8598 38 2.17 14
IV.MBAL.EHZ. 2021-10-21T02:30:57.77 0.3 undecidable manual P 246 1.7429 38 2.12 16
ST.VARA.EHZ. 2021-10-21T02:30:55.66 0.3 undecidable manual P 250 1.6682 38 1.05 35
ST.OZOL.EHZ. 2021-10-21T02:30:52.54 0.3 undecidable manual P 270 1.4434 50 1.51 31
ST.DOSS.HHZ. 2021-10-21T02:30:52.68 0.3 undecidable manual P 249 1.4587 50 1.38 33
OE.WTTA.HHZ. 2021-10-21T02:30:49.79 0.3 undecidable manual P 310 1.3319 50 0.66 49
IV.CTI.HHZ. 2021-10-21T02:30:46.53 0.3 undecidable manual P 251 1.0999 50 1.37 37
ST.ZIAN.EHZ. 2021-10-21T02:30:46.03 0.3 undecidable manual P 263 1.1017 50 0.84 48
SL.LJU.BHZ. 2021-10-21T02:30:45.17 0.6 undecidable manual P 111 1.0270 50 1.25 27
OX.VARN.HHZ. 2021-10-21T02:30:41.29 0.6 undecidable manual P 240 0.8382 50 0.61 38
MN.TRI.HHZ. 2021-10-21T02:30:41.29 0.6 undecidable manual P 149 0.8310 50 0.73 36
OX.DRE.HHZ. 2021-10-21T02:30:40.28 0.6 undecidable manual S 126 0.4245 50 0.24 45
IV.FREG.EHZ. 2021-10-21T02:30:39.06 0.6 undecidable manual P 235 0.7069 50 0.62 39
OX.PRED.HHE. 2021-10-21T02:30:35.63 0.3 undecidable manual S 86 0.2896 50 -0.41 67
IV.FVI.HHZ. 2021-10-21T02:30:35.48 0.3 undecidable manual S 305 0.3067 50 -1.07 52
OX.SABO.HHZ. 2021-10-21T02:30:35.28 0.6 undecidable manual P 142 0.5495 50 -0.46 42
OX.MLN.HHZ. 2021-10-21T02:30:34.08 0.6 undecidable manual P 234 0.4560 50 -0.07 47
OX.CIMO.HHZ. 2021-10-21T02:30:34.18 0.6 undecidable manual P 257 0.4955 50 -0.65 40
OX.MPRI.HHZ. 2021-10-21T02:30:33.36 0.3 undecidable manual S 211 0.2104 114 -0.32 70
NI.PALA.HHZ. 2021-10-21T02:30:33.85 0.3 undecidable manual S 221 0.2338 50 -0.54 66
OX.DRE.HHZ. 2021-10-21T02:30:33.04 0.1 undecidable manual P 126 0.4245 50 -0.57 84
OX.BAD.HNZ. 2021-10-21T02:30:33.20 0.3 undecidable manual S 160 0.1988 115 -0.06 74
NI.VINO.HHZ. 2021-10-21T02:30:32.85 0.3 undecidable manual S 152 0.1898 116 -0.09 73
OX.CLUD.HHZ. 2021-10-21T02:30:32.14 0.6 undecidable manual S 281 0.1853 116 -0.66 42
IV.STAL.HHZ. 2021-10-21T02:30:31.34 0.6 undecidable manual P 242 0.3408 50 -0.84 38
RF.GEPF.HHZ. 2021-10-21T02:30:31.64 0.3 undecidable manual S 182 0.1466 122 0.17 73
IV.PTCC.HHZ. 2021-10-21T02:30:31.54 0.3 undecidable manual S 95 0.1439 123 0.14 73
OX.ACOM.HHZ. 2021-10-21T02:30:31.37 0.3 undecidable manual P 63 0.2833 50 0.18 71
IV.FVI.HHZ. 2021-10-21T02:30:31.03 0.1 negative manual P 305 0.3067 50 -0.56 86
OX.PLRO.HHZ. 2021-10-21T02:30:30.97 0.3 undecidable manual S 1 0.1277 126 0.09 74
OX.FUSE.HHZ. 2021-10-21T02:30:30.09 0.3 undecidable manual S 266 0.0998 133 0.04 75
OX.PRED.HHE. 2021-10-21T02:30:30.93 0.3 undecidable manual P 86 0.2896 50 -0.37 68
NI.PURA.HHE. 2021-10-21T02:30:30.71 0.3 undecidable manual P 271 0.2788 50 -0.4 68
OX.BOO.HHZ. 2021-10-21T02:30:30.73 0.3 undecidable manual S 198 0.1070 131 0.48 69
OX.BAD.HNZ. 2021-10-21T02:30:29.41 0.3 undecidable manual P 160 0.1988 115 -0.28 70
OX.CLUD.HHZ. 2021-10-21T02:30:29.05 0.1 negative manual P 281 0.1853 116 -0.37 92
OX.MPRI.HHZ. 2021-10-21T02:30:29.55 0.3 undecidable manual P 211 0.2104 114 -0.38 69
NI.PALA.HHZ. 2021-10-21T02:30:29.88 0.1 negative manual P 221 0.2338 50 -0.46 90
NI.VINO.HHZ. 2021-10-21T02:30:29.24 0.1 undecidable manual P 152 0.1898 116 -0.26 94
IV.PTCC.HHZ. 2021-10-21T02:30:28.73 0.1 positive manual P 95 0.1439 123 0.12 98
OX.BOO.HHZ. 2021-10-21T02:30:28.10 0.1 undecidable manual P 198 0.1070 131 0.15 98
OX.PLRO.HHZ. 2021-10-21T02:30:28.47 0.1 undecidable manual P 1 0.1277 126 0.15 98
RF.GEPF.HHZ. 2021-10-21T02:30:28.57 0.1 negative manual P 182 0.1466 122 -0.09 99
OX.FUSE.HHZ. 2021-10-21T02:30:27.91 0.1 negative manual P 266 0.0998 133 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.PLRO.HHE. ML:2.4 0.00246 0.36 AML other m 2021-10-21T02:30:31.23
OX.PLRO.HHN. ML:2.4 0.002715 0.12 AML other m 2021-10-21T02:30:31.44
IV.PTCC.HHN. ML:2.2 0.0016 0.24 AML other m 2021-10-21T02:30:31.73
IV.PTCC.HHE. ML:2.2 0.001405 0.48 AML other m 2021-10-21T02:30:31.97
RF.GEPF.HHE. ML:1.8 0.0004965 0.28 AML other m 2021-10-21T02:30:31.98
RF.GEPF.HHN. ML:2.2 0.0013145 1.74 AML other m 2021-10-21T02:30:31.90
OX.CLUD.HNE. ML:1.6 0.00028649999999999997 0.64 AML other m 2021-10-21T02:30:32.24
OX.CLUD.HHE. ML:1.6 0.00030199999999999997 0.64 AML other m 2021-10-21T02:30:32.24
NI.VINO.HHE. ML:1.8 0.000527 0.74 AML other m 2021-10-21T02:30:33.49
NI.VINO.HHN. ML:2.0 0.000794 0.38 AML other m 2021-10-21T02:30:33.24
OX.MPRI.HNE. ML:1.9 0.0005875 1.86 AML other m 2021-10-21T02:30:33.93
OX.MPRI.HHE. ML:2.1 0.00075 1.86 AML other m 2021-10-21T02:30:33.93
OX.CLUD.HHN. ML:1.5 0.0002065 0.7 AML other m 2021-10-21T02:30:34.19
OX.CLUD.HNN. ML:1.4 0.0001995 0.7 AML other m 2021-10-21T02:30:34.19
OX.MPRI.HHN. ML:2.0 0.0006879999999999999 0.42 AML other m 2021-10-21T02:30:34.87
OX.MPRI.HNN. ML:1.9 0.00054 0.44 AML other m 2021-10-21T02:30:34.87
NI.PALA.HHE. ML:1.9 0.00047000000000000004 1.44 AML other m 2021-10-21T02:30:35.75
NI.PALA.HHN. ML:1.9 0.000446 0.12 AML other m 2021-10-21T02:30:35.78
IV.FVI.HHE. ML:2.2 0.0006255 1.8 AML other m 2021-10-21T02:30:35.97
IV.FVI.HHN. ML:1.8 0.0002735 1.54 AML other m 2021-10-21T02:30:36.11
OX.ACOM.HHN. ML:2.4 0.001345 0.52 AML other m 2021-10-21T02:30:36.31
OX.ACOM.HNE. ML:2.3 0.0010364999999999999 0.32 AML other m 2021-10-21T02:30:36.72
OX.ACOM.HHE. ML:2.4 0.001065 0.32 AML other m 2021-10-21T02:30:36.72
OX.ACOM.HNN. ML:2.4 0.001314 0.42 AML other m 2021-10-21T02:30:37.32
IV.STAL.HNE. ML:1.8 0.0002545 0.52 AML other m 2021-10-21T02:30:37.95
IV.STAL.HHN. ML:1.6 0.0001615 0.94 AML other m 2021-10-21T02:30:38.73
IV.STAL.HHE. ML:1.8 0.0002185 0.18 AML other m 2021-10-21T02:30:38.83
OX.CIMO.HHN. ML:1.0 0.00002615 0.16 AML other m 2021-10-21T02:30:43.12
IV.STAL.HNN. ML:1.9 0.0002675 0.78 AML other m 2021-10-21T02:30:43.39
OX.MLN.HHN. ML:1.2 0.000043249999999999994 1.5 AML other m 2021-10-21T02:30:44.98
OX.CIMO.HHE. ML:1.1 0.000031349999999999996 0.56 AML other m 2021-10-21T02:30:46.49
OX.SABO.HHE. ML:2.0 0.000184 0.22 AML other m 2021-10-21T02:30:46.66
OX.SABO.HNE. ML:2.6 0.0008335 0.22 AML other m 2021-10-21T02:30:46.67
OX.SABO.HHN. ML:2.1 0.000257 1.1 AML other m 2021-10-21T02:30:46.24
OX.SABO.HNN. ML:2.7 0.0009670000000000001 1.1 AML other m 2021-10-21T02:30:46.25
OX.MLN.HHE. ML:1.2 0.0000445 1.48 AML other m 2021-10-21T02:30:51.12
IV.FREG.EHE. ML:1.9 0.0001187 1.32 AML other m 2021-10-21T02:30:55.98
IV.FREG.EHN. ML:1.8 0.0000981 0.42 AML other m 2021-10-21T02:30:56.22
OX.VARN.HHN. ML:2.0 0.00011899999999999999 0.24 AML other m 2021-10-21T02:30:58.46
OX.VARN.HHE. ML:2.1 0.0001295 0.8 AML other m 2021-10-21T02:30:59.11
SL.LJU.BHN. ML:2.8 0.0005304999999999999 0.9 AML other m 2021-10-21T02:31:03.67
SL.LJU.BHE. ML:2.7 0.000399 1.1 AML other m 2021-10-21T02:31:03.42
ST.ZIAN.EHN. ML:1.8 0.00004905 0.26 AML other m 2021-10-21T02:31:04.69
IV.CTI.HHE. ML:2.4 0.000195 0.42 AML other m 2021-10-21T02:31:04.62
ST.ZIAN.EHE. ML:2.0 0.00006905 0.3 AML other m 2021-10-21T02:31:04.76
IV.CTI.HHN. ML:2.3 0.0001295 0.46 AML other m 2021-10-21T02:31:05.56
ST.OZOL.EHN. ML:2.5 0.00014000000000000001 1.06 AML other m 2021-10-21T02:31:15.31
ST.DOSS.HHN. ML:2.2 0.0000682 0.32 AML other m 2021-10-21T02:31:15.69
ST.DOSS.HHE. ML:2.3 0.0000811 1.68 AML other m 2021-10-21T02:31:16.02
ST.OZOL.EHE. ML:2.4 0.00012475 0.48 AML other m 2021-10-21T02:31:17.13
IV.MAGA.HHE. ML:2.7 0.000128 0.58 AML other m 2021-10-21T02:31:27.01
IV.MAGA.HHN. ML:2.3 0.00005495 0.76 AML other m 2021-10-21T02:31:30.96
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
Waveforms Seismic signals in miniseed + resp format Download