Earthquake with magnitude of ML 2.1 on date 21-10-2021 and time 04:30:24 (Italy) in region 5 km W Moggio Udinese (UD)

A magnitude ML 2.1 earthquake occured in region: 5 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) 46.425, 13.134 at 15 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
Moggio Udinese UD 5 1714 1714
Amaro UD 6 823 2537
Resiutta UD 8 309 2846
Zuglio UD 9 595 3441
Tolmezzo UD 9 10440 13881
Cavazzo Carnico UD 10 1052 14933
Arta Terme UD 10 2171 17104
Venzone UD 10 2117 19221
Verzegnis UD 11 863 20084
Paularo UD 12 2623 22707
Bordano UD 12 754 23461
Ligosullo UD 14 116 23577
Chiusaforte UD 14 672 24249
Treppo Carnico UD 14 618 24867
Dogna UD 14 175 25042
Resia UD 14 1033 26075
Sutrio UD 15 1332 27407
Paluzza UD 15 2217 29624
Lauco UD 15 729 30353
Cercivento UD 16 679 31032
Villa Santina UD 16 2233 33265
Pontebba UD 16 1433 34698
Trasaghis UD 16 2227 36925
Gemona del Friuli UD 16 10964 47889
Montenars UD 19 538 48427
Osoppo UD 19 2936 51363
Enemonzo UD 20 1319 52682
Ravascletto UD 20 536 53218

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Udine (99169 inhabitants)
64 Km NE of Pordenone (51229 inhabitants)
99 Km NW of Trieste (204420 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows 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 reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows 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 https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows 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 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 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 ± 0.05
Latitude 46.4247 ± 0.0027
Longitude 13.1340 ± 0.0026
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96818761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 77
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 360
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.55668
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 19
Magnitude information

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.MAGA.HHZ. 2021-10-21T02:31:24.03 3.0 undecidable manual Sn 1.2 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
ST.OZOL.EHZ. 2021-10-21T02:31:13.44 3.0 undecidable manual Sn 0.99 0
ST.DOSS.HHZ. 2021-10-21T02:31:13.14 3.0 undecidable manual Sn 0.14 0
IV.CPGN.EHZ. 2021-10-21T02:31:04.40 3.0 undecidable manual Pn -4.11 0
IV.MBAL.EHZ. 2021-10-21T02:30:58.81 3.0 negative manual Pg 3.18 0
ST.VARA.EHZ. 2021-10-21T02:30:56.67 3.0 negative manual Pn 2.08 0
ST.OZOL.EHZ. 2021-10-21T02:30:53.29 3.0 positive manual Pn 1.89 0
ST.DOSS.HHZ. 2021-10-21T02:30:52.94 3.0 undecidable manual Pn 1.23 0
OE.WTTA.HHZ. 2021-10-21T02:30:50.35 3.0 positive manual P 0.77 0
IV.CTI.HHZ. 2021-10-21T02:30:46.81 3.0 undecidable manual P 0.05 0
ST.ZIAN.EHZ. 2021-10-21T02:30:46.20 3.0 undecidable manual P -0.53 0
SL.LJU.BHZ. 2021-10-21T02:30:45.62 3.0 undecidable manual P 0.52 0
OX.VARN.HHZ. 2021-10-21T02:30:41.20 3.0 positive manual P -0.95 0
MN.TRI.HHZ. 2021-10-21T02:30:39.47 3.0 negative manual P -2.3 0
IV.FREG.EHZ. 2021-10-21T02:30:38.77 3.0 undecidable manual P -0.96 0
OX.SABO.HHZ. 2021-10-21T02:30:35.35 0.6 negative manual P 141 0.5567 94 -0.06 46
OX.PRED.HHE. 2021-10-21T02:30:35.63 0.3 undecidable manual S 86 0.2977 100 -0.17 71
IV.FVI.HHZ. 2021-10-21T02:30:35.48 0.3 undecidable manual S 305 0.2977 100 -0.33 69
OX.MLN.HHZ. 2021-10-21T02:30:34.08 0.6 undecidable manual P 233 0.4515 96 0.47 43
OX.CIMO.HHZ. 2021-10-21T02:30:34.18 0.6 undecidable manual P 257 0.4883 95 -0.06 46
OX.MPRI.HHZ. 2021-10-21T02:30:33.36 0.3 undecidable manual S 209 0.2095 108 0.09 73
NI.PALA.HHZ. 2021-10-21T02:30:33.85 0.3 undecidable manual S 219 0.2311 105 -0.02 74
OX.DRE.HHZ. 2021-10-21T02:30:33.07 0.1 negative manual P 125 0.4335 96 -0.23 91
OX.BAD.HNZ. 2021-10-21T02:30:33.20 0.3 undecidable manual S 158 0.205 108 0.06 74
OX.CLUD.HHZ. 2021-10-21T02:30:32.14 0.1 undecidable manual S 281 0.1772 113 -0.22 96
NI.VINO.HHZ. 2021-10-21T02:30:32.85 0.3 undecidable manual S 150 0.197 109 -0.06 74
RF.GEPF.HHZ. 2021-10-21T02:30:31.64 0.3 undecidable manual S 179 0.1493 119 0.01 75
OX.ACOM.HHZ. 2021-10-21T02:30:31.37 0.3 undecidable manual P 65 0.2887 101 0.51 66
IV.PTCC.HHZ. 2021-10-21T02:30:31.54 0.1 undecidable manual S 96 0.1529 118 -0.17 97
IV.STAL.HHZ. 2021-10-21T02:30:31.34 0.6 undecidable manual P 241 0.3354 98 -0.3 46
IV.FVI.HHZ. 2021-10-21T02:30:31.03 0.1 negative manual P 305 0.2977 100 0.03 97
NI.PURA.HHE. 2021-10-21T02:30:30.71 0.3 undecidable manual P 270 0.2698 102 0.17 71
OX.BOO.HHZ. 2021-10-21T02:30:30.73 0.3 undecidable manual S 193 0.1079 131 0.11 75
OX.FUSE.HHZ. 2021-10-21T02:30:30.09 0.3 undecidable manual S 264 0.0917 137 -0.19 73
OX.PRED.HHE. 2021-10-21T02:30:30.93 0.3 undecidable manual P 86 0.2977 100 -0.07 72
OX.PLRO.HHZ. 2021-10-21T02:30:30.97 0.3 undecidable manual S 4 0.125 126 -0.04 75
NI.VINO.HHZ. 2021-10-21T02:30:29.34 0.3 undecidable manual P 150 0.197 109 0.01 75
OX.BAD.HNZ. 2021-10-21T02:30:29.41 0.3 undecidable manual P 158 0.205 108 -0.05 74
OX.MPRI.HHZ. 2021-10-21T02:30:29.55 0.3 undecidable manual P 209 0.2095 108 0.01 75
NI.PALA.HHZ. 2021-10-21T02:30:29.88 0.1 negative manual P 219 0.2311 105 0 99
OX.CLUD.HHZ. 2021-10-21T02:30:29.05 0.1 negative manual P 281 0.1772 113 0.04 99
OX.PLRO.HHZ. 2021-10-21T02:30:28.47 0.1 undecidable manual P 4 0.125 126 0.24 96
RF.GEPF.HHZ. 2021-10-21T02:30:28.57 0.1 negative manual P 179 0.1493 119 -0.02 100
OX.BOO.HHZ. 2021-10-21T02:30:28.15 0.3 undecidable manual P 193 0.1079 131 0.14 74
IV.PTCC.HHZ. 2021-10-21T02:30:28.73 0.1 positive manual P 96 0.1529 118 0.09 99
OX.FUSE.HHZ. 2021-10-21T02:30:27.91 0.1 negative manual P 264 0.0917 137 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.PLRO.HHE. ML:2.5 0.00246 0.36 AML other m 2021-10-21T02:30:31.23
OX.PLRO.HHN. ML:2.5 0.002715 0.12 AML other m 2021-10-21T02:30:31.44
IV.PTCC.HHN. ML:2.3 0.0016 0.24 AML other m 2021-10-21T02:30:31.73
IV.PTCC.HHE. ML:2.3 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 0.0002865 0.64 AML other m 2021-10-21T02:30:32.24
OX.CLUD.HHE. ML:1.7 0.000302 0.64 AML other m 2021-10-21T02:30:32.24
NI.VINO.HHE. ML:1.9 0.000527 0.74 AML other m 2021-10-21T02:30:33.49
NI.VINO.HHN. ML:2.1 0.000794 0.38 AML other m 2021-10-21T02:30:33.24
OX.MPRI.HNE. ML:2 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.HNN. ML:1.5 0.0001995 0.7 AML other m 2021-10-21T02:30:34.19
OX.CLUD.HHN. ML:1.5 0.0002065 0.7 AML other m 2021-10-21T02:30:34.19
OX.MPRI.HHN. ML:2 0.000688 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:2 0.00047 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:2.5 0.001345 0.52 AML other m 2021-10-21T02:30:36.31
OX.ACOM.HNE. ML:2.4 0.0010365 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:2.5 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 2.615E-5 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 4.325E-5 1.5 AML other m 2021-10-21T02:30:44.98
OX.CIMO.HHE. ML:1.1 3.135E-5 0.56 AML other m 2021-10-21T02:30:46.49
OX.SABO.HHE. ML:2 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 0.000967 1.1 AML other m 2021-10-21T02:30:46.25
OX.MLN.HHE. ML:1.2 4.45E-5 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 9.81E-5 0.42 AML other m 2021-10-21T02:30:56.22
OX.VARN.HHN. ML:2 0.000119 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 0.0005305 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 4.905E-5 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 6.905E-5 0.3 AML other m 2021-10-21T02:31:04.76
IV.CTI.HHN. ML:2.2 0.0001295 0.46 AML other m 2021-10-21T02:31:05.56
ST.OZOL.EHN. ML:2.5 0.00014 1.06 AML other m 2021-10-21T02:31:15.31
ST.DOSS.HHN. ML:2.2 6.82E-5 0.32 AML other m 2021-10-21T02:31:15.69
ST.DOSS.HHE. ML:2.2 8.11E-5 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 5.495E-5 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

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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