Earthquake with magnitude of ML 1.5 on date 26-11-2021 and time 05:50:25 (UTC) in region 2 km N Amaro (UD)

A magnitude ML 1.5 earthquake occured in region: 2 km N Amaro (UD), on

  • 26-11-2021 05:50:25 (UTC)
  • 26-11-2021 06:50:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.3950, 13.0880 at 11 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
Amaro UD 2 823 823
Cavazzo Carnico UD 5 1052 1875
Tolmezzo UD 6 10440 12315
Verzegnis UD 7 863 13178
Venzone UD 8 2117 15295
Moggio Udinese UD 9 1714 17009
Zuglio UD 9 595 17604
Bordano UD 9 754 18358
Arta Terme UD 10 2171 20529
Resiutta UD 10 309 20838
Lauco UD 12 729 21567
Trasaghis UD 13 2227 23794
Villa Santina UD 13 2233 26027
Gemona del Friuli UD 14 10964 36991
Sutrio UD 15 1332 38323
Paularo UD 15 2623 40946
Osoppo UD 16 2936 43882
Treppo Carnico UD 16 618 44500
Paluzza UD 16 2217 46717
Enemonzo UD 16 1319 48036
Ligosullo UD 16 116 48152
Cercivento UD 17 679 48831
Preone UD 17 246 49077
Resia UD 17 1033 50110
Montenars UD 17 538 50648
Chiusaforte UD 17 672 51320
Raveo UD 17 458 51778
Artegna UD 18 2885 54663
Dogna UD 19 175 54838
Ravascletto UD 19 536 55374
Magnano in Riviera UD 20 2336 57710
Lusevera UD 20 643 58353
Ovaro UD 20 1922 60275

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Udine (99169 inhabitants)
59 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.5 2021-11-26
05:50:25
46.395 13.0878 11 2022-03-30
13:04:20
Bollettino Sismico Italiano INGV 98094341
Reviewed
Rev100
ML 1.5 2021-11-26
05:50:25
46.3972 13.0805 15 2021-11-26
05:55:25
Sala Sismica INGV-Roma 97803911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-26 05:50:25 ± 0.05
Latitude 46.3950 ± 0.0027
Longitude 13.0878 ± 0.0039
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98094341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 67
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 197
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
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 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.45146
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 98094341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-03 13:43:46

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 97803911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-26 05:55:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.CIMO.HHZ. 2021-11-26T05:50:41.62 0.3 undecidable manual S 260 0.4515 90 -0.12 70
OX.DRE.HNZ. 2021-11-26T05:50:41.83 0.6 undecidable manual S 120 0.4443 90 0.31 45
OX.MLN.HNZ. 2021-11-26T05:50:40.66 0.3 undecidable manual S 233 0.4083 90 0.2 68
OX.PRED.HNZ. 2021-11-26T05:50:38.09 0.6 undecidable manual S 82 0.3318 90 -0.12 46
OX.ACOM.HHZ. 2021-11-26T05:50:38.32 0.3 undecidable manual S 62 0.3310 90 0.16 71
IV.FVI.HHZ. 2021-11-26T05:50:36.67 0.6 undecidable manual S 314 0.2923 90 -0.35 45
NI.PURA.HHZ. 2021-11-26T05:50:35.39 0.3 undecidable manual S 277 0.2401 91 -0.1 73
OX.CIMO.HHZ. 2021-11-26T05:50:35.42 0.3 undecidable manual P 260 0.4515 90 0.37 65
OX.BAD.HNZ. 2021-11-26T05:50:34.26 0.3 undecidable manual S 146 0.1934 91 0.16 72
OX.MLN.HNZ. 2021-11-26T05:50:34.77 0.3 undecidable manual P 233 0.4083 90 0.46 64
OX.DRE.HNZ. 2021-11-26T05:50:34.70 0.3 undecidable manual P 120 0.4443 90 -0.23 67
NI.PALA.HHZ. 2021-11-26T05:50:33.80 0.3 undecidable manual S 217 0.1880 91 -0.13 73
OX.ACOM.HHZ. 2021-11-26T05:50:33.19 0.3 undecidable manual P 62 0.3310 90 0.2 70
NI.VINO.HHZ. 2021-11-26T05:50:33.82 0.3 undecidable manual S 137 0.1916 91 -0.22 71
OX.PLRO.HHZ. 2021-11-26T05:50:33.02 0.6 undecidable manual S 15 0.1592 92 -0.07 49
OX.MPRI.HHZ. 2021-11-26T05:50:33.38 0.3 undecidable manual S 204 0.1691 92 0.01 74
IV.PTCC.HHZ. 2021-11-26T05:50:33.62 0.6 undecidable manual S 86 0.1835 91 -0.2 47
IV.FVI.HHZ. 2021-11-26T05:50:32.20 0.3 undecidable manual P 314 0.2923 90 -0.12 71
OX.PRED.HNZ. 2021-11-26T05:50:32.78 0.1 undecidable manual P 82 0.3318 90 -0.23 91
OX.CLUD.HHZ. 2021-11-26T05:50:32.68 0.3 undecidable manual S 294 0.1547 92 -0.28 71
IV.STAL.HHZ. 2021-11-26T05:50:31.95 0.3 undecidable manual P 243 0.2932 90 -0.4 68
NI.PURA.HHZ. 2021-11-26T05:50:31.93 0.3 undecidable manual P 277 0.2401 91 0.49 66
OX.PLRO.HHZ. 2021-11-26T05:50:30.23 0.1 positive manual P 15 0.1592 92 0.17 97
OX.MPRI.HHZ. 2021-11-26T05:50:30.08 0.3 undecidable manual P 204 0.1691 92 -0.14 73
OX.FUSE.HHZ. 2021-11-26T05:50:30.58 0.1 undecidable manual S 288 0.0630 137 0.1 99
IV.PTCC.HHZ. 2021-11-26T05:50:30.37 0.1 undecidable manual P 86 0.1835 91 -0.11 96
OX.BOO.HNZ. 2021-11-26T05:50:30.66 0.1 undecidable manual S 174 0.0755 129 -0.1 99
NI.PALA.HHZ. 2021-11-26T05:50:30.36 0.3 undecidable manual P 217 0.1880 91 -0.18 72
OX.BAD.HNZ. 2021-11-26T05:50:30.54 0.3 undecidable manual P 146 0.1934 91 -0.1 73
NI.VINO.HHZ. 2021-11-26T05:50:30.56 0.3 undecidable manual P 137 0.1916 91 -0.05 74
RF.GEPF.HHZ. 2021-11-26T05:50:29.86 0.1 undecidable manual P 164 0.1250 99 0.39 92
OX.CLUD.HHZ. 2021-11-26T05:50:29.83 0.3 undecidable manual P 294 0.1547 92 -0.15 73
OX.FUSE.HHZ. 2021-11-26T05:50:28.69 0.1 negative manual P 288 0.0630 137 0.14 99
OX.BOO.HNZ. 2021-11-26T05:50:28.64 0.1 undecidable manual P 174 0.0755 129 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.FUSE.HHN. ML:1.6 0.0006014999999999999 0.14 AML other m 2021-11-26T05:50:30.71
OX.FUSE.HNE. ML:1.5 0.000393 0.18 AML other m 2021-11-26T05:50:30.81
OX.FUSE.HHE. ML:1.5 0.000446 0.18 AML other m 2021-11-26T05:50:30.81
OX.FUSE.HNN. ML:1.6 0.0005655 0.16 AML other m 2021-11-26T05:50:30.72
OX.PLRO.HNN. ML:1.8 0.0005620000000000001 0.32 AML other m 2021-11-26T05:50:33.17
OX.PLRO.HHN. ML:1.5 0.000244 0.36 AML other m 2021-11-26T05:50:33.37
OX.PLRO.HHE. ML:1.5 0.0002515 0.3 AML other m 2021-11-26T05:50:33.14
OX.PLRO.HNE. ML:1.7 0.0004425 0.84 AML other m 2021-11-26T05:50:33.13
IV.PTCC.HHN. ML:1.1 0.00009620000000000001 0.44 AML other m 2021-11-26T05:50:33.68
IV.PTCC.HHE. ML:1.0 0.00006805 0.46 AML other m 2021-11-26T05:50:33.99
NI.PALA.HHE. ML:1.2 0.0001148 0.56 AML other m 2021-11-26T05:50:35.60
NI.PALA.HHN. ML:1.3 0.0001225 0.46 AML other m 2021-11-26T05:50:40.28
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