Earthquake with magnitude of ML 0.4 on date 25-11-2021 and time 23:57:23 (Italy) in region 5 km S Preone (UD)

A magnitude ML 0.4 earthquake occured in region: 5 km S Preone (UD), on

  • 25-11-2021 22:57:23 (UTC)
  • 25-11-2021 23:57:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.348, 12.885 at 7 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
Preone UD 5 246 246
Enemonzo UD 7 1319 1565
Socchieve UD 8 908 2473
Villa Santina UD 8 2233 4706
Tramonti di Sopra PN 8 321 5027
Lauco UD 9 729 5756
Verzegnis UD 10 863 6619
Raveo UD 10 458 7077
Tramonti di Sotto PN 10 387 7464
Ampezzo UD 10 1006 8470
Tolmezzo UD 12 10440 18910
Cavazzo Carnico UD 12 1052 19962
Clauzetto PN 13 380 20342
Vito d'Asio PN 14 769 21111
Forgaria nel Friuli UD 15 1786 22897
Ovaro UD 15 1922 24819
Amaro UD 16 823 25642
Meduno PN 16 1574 27216
Trasaghis UD 16 2227 29443
Castelnovo del Friuli PN 17 880 30323
Zuglio UD 17 595 30918
Travesio PN 17 1776 32694
Forni di Sotto UD 17 600 33294
Bordano UD 17 754 34048
Arta Terme UD 18 2171 36219
Osoppo UD 18 2936 39155
Comeglians UD 19 516 39671
Pinzano al Tagliamento PN 19 1525 41196
Sauris UD 19 416 41612
Cavasso Nuovo PN 19 1525 43137
Frisanco PN 19 622 43759
Venzone UD 20 2117 45876
Sutrio UD 20 1332 47208
Ravascletto UD 20 536 47744

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NW of Udine (99169 inhabitants)
47 Km NE of Pordenone (51229 inhabitants)
90 Km NE of Treviso (83731 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 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
Reviewed
Rev100
ML 0.4 2021-11-25
22:57:23
46.3485 12.8853 7 2021-11-25
23:02:15
Sala Sismica INGV-Roma 97795461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-25 22:57:23 ± 0.23
Latitude 46.3485 ± 0.0045
Longitude 12.8853 ± 0.0091
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97795461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 656
Semi-minor axis of confidence ellipse (meter) 210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 660
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.10342
Epicentral distance of station farthest from the epicenter (degree) 0.2698
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:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 97795461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 23:02:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FVI.HHZ. 2021-11-25T22:57:33.47 0.3 undecidable manual S 344 0.2581 103 -0.28 70
OX.PLRO.HHZ. 2021-11-25T22:57:33.76 0.3 undecidable manual S 42 0.2698 103 -0.43 67
OX.PLRO.HHZ. 2021-11-25T22:57:29.90 0.1 undecidable manual P 42 0.2698 103 0.22 94
IV.STAL.HHZ. 2021-11-25T22:57:29.57 0.3 undecidable manual S 234 0.1493 112 -0.19 73
IV.FVI.HHZ. 2021-11-25T22:57:29.41 0.1 undecidable manual P 344 0.2581 103 -0.02 98
NI.PALA.HHZ. 2021-11-25T22:57:28.32 0.3 undecidable manual S 166 0.107 120 0.05 75
OX.CLUD.HHZ. 2021-11-25T22:57:28.69 0.3 undecidable manual S 359 0.1079 120 0.37 70
IV.STAL.HHZ. 2021-11-25T22:57:27.01 0.1 undecidable manual P 234 0.1493 112 -0.11 98
OX.FUSE.HHZ. 2021-11-25T22:57:27.79 0.3 undecidable manual S 50 0.1034 121 -0.36 70
OX.FUSE.HHZ. 2021-11-25T22:57:26.38 0.1 undecidable manual P 50 0.1034 121 0.19 98
OX.CLUD.HHZ. 2021-11-25T22:57:26.56 0.1 undecidable manual P 359 0.1079 120 0.27 96
NI.PALA.HHZ. 2021-11-25T22:57:26.33 0.1 undecidable manual P 166 0.107 120 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
NI.PALA.HHE. ML:0.5 4.1195425E-5 0.2048 AML other m 2021-11-25T22:57:28.65
NI.PALA.HHN. ML:0.5 4.446191E-5 0.1408 AML other m 2021-11-25T22:57:29.40
OX.FUSE.HNE. ML:0.3 2.3715814E-5 0.1664 AML other m 2021-11-25T22:57:28.18
OX.FUSE.HNN. ML:0.3 2.700248E-5 0.1792 AML other m 2021-11-25T22:57:29.26
OX.FUSE.HHE. ML:0.3 2.694379E-5 0.1664 AML other m 2021-11-25T22:57:28.18
OX.FUSE.HHN. ML:0.3 2.5636685E-5 0.1152 AML other m 2021-11-25T22:57:28.18
OX.CLUD.HNE. ML:0.5 4.200862E-5 0.8064 AML other m 2021-11-25T22:57:32.77
OX.CLUD.HNN. ML:0.4 3.596255E-5 0.832 AML other m 2021-11-25T22:57:32.99
OX.CLUD.HHE. ML:0.2 2.050906E-5 1.3568 AML other m 2021-11-25T22:57:34.12
OX.CLUD.HHN. ML:0.2 2.066054E-5 1.5232 AML other m 2021-11-25T22:57:33.93
IV.STAL.HHE. ML:0.4 2.250702E-5 0.1536 AML other m 2021-11-25T22:57:30.52
IV.STAL.HHN. ML:0.6 3.2624055E-5 0.1024 AML other m 2021-11-25T22:57:29.88
IV.STAL.HNE. ML:1 9.350173E-5 0.576 AML other m 2021-11-25T22:57:30.86
IV.STAL.HNN. ML:1.1 0.000126477905 0.7808 AML other m 2021-11-25T22:57:35.98
IV.FVI.HHE. ML:0.3 1.1649693E-5 0.1664 AML other m 2021-11-25T22:57:33.85
IV.FVI.HHN. ML:0 3.9443245E-6 0.2432 AML other m 2021-11-25T22:57:34.05
OX.PLRO.HHE. ML:0.3 1.2157879E-5 0.32 AML other m 2021-11-25T22:57:33.93
OX.PLRO.HHN. ML:0.6 1.9732131E-5 0.2432 AML other m 2021-11-25T22:57:35.88
OX.PLRO.HNE. ML:1.3 0.00010796407 0.7552 AML other m 2021-11-25T22:57:40.42
OX.PLRO.HNN. ML:1.3 0.000105090435 0.8064 AML other m 2021-11-25T22:57:44.98
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