Earthquake with magnitude of ML 0.7 on date 20-10-2021 and time 02:21:25 (Italy) in region 4 km W Raveo (UD)

A magnitude ML 0.7 earthquake occured in region: 4 km W Raveo (UD), on

  • 20-10-2021 00:21:25 (UTC)
  • 20-10-2021 02:21:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.446, 12.827 at 12 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
Raveo UD 4 458 458
Ampezzo UD 4 1006 1464
Socchieve UD 5 908 2372
Ovaro UD 5 1922 4294
Enemonzo UD 6 1319 5613
Preone UD 7 246 5859
Comeglians UD 8 516 6375
Villa Santina UD 8 2233 8608
Lauco UD 9 729 9337
Prato Carnico UD 9 904 10241
Sauris UD 9 416 10657
Ravascletto UD 12 536 11193
Rigolato UD 12 448 11641
Forni di Sotto UD 13 600 12241
Verzegnis UD 14 863 13104
Sutrio UD 15 1332 14436
Tolmezzo UD 15 10440 24876
Cercivento UD 15 679 25555
Tramonti di Sopra PN 15 321 25876
Zuglio UD 15 595 26471
Arta Terme UD 16 2171 28642
Forni Avoltri UD 16 588 29230
Paluzza UD 17 2217 31447
Sappada BL 17 1317 32764
Tramonti di Sotto PN 18 387 33151
Cavazzo Carnico UD 19 1052 34203
Forni di Sopra UD 19 993 35196
Treppo Carnico UD 19 618 35814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km NW of Udine (99169 inhabitants)
56 Km N of Pordenone (51229 inhabitants)
97 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 0.7 2021-10-20
00:21:25
46.4465 12.8272 12 2021-10-20
02:18:20
Sala Sismica INGV-Roma 96781361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-20 00:21:25 ± 0.08
Latitude 46.4465 ± 0.0036
Longitude 12.8272 ± 0.0039
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96781361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 366
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.36423
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 96781361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-20 02:18:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
NI.VINO.HHE. 2021-10-20T00:21:38.57 0.1 undecidable manual S 122 0.3642 91 0.22 90
OX.BAD.HHE. 2021-10-20T00:21:38.26 0.3 undecidable manual S 126 0.357 91 0.11 69
OX.MLN.HHZ. 2021-10-20T00:21:37.77 0.6 undecidable manual S 206 0.331 91 0.41 44
OX.CIMO.HHE. 2021-10-20T00:21:35.88 0.3 undecidable manual S 243 0.2959 91 -0.45 65
OX.MPRI.HHZ. 2021-10-20T00:21:34.37 0.3 undecidable manual S 152 0.2338 92 -0.11 72
OX.PLRO.HHZ. 2021-10-20T00:21:34.85 0.3 undecidable manual S 65 0.2437 92 0.08 71
IV.STAL.HHZ. 2021-10-20T00:21:33.37 0.1 undecidable manual S 203 0.2032 93 -0.2 94
OX.BOO.HHZ. 2021-10-20T00:21:33.97 0.6 undecidable manual S 124 0.2257 92 -0.28 47
OX.MLN.HHZ. 2021-10-20T00:21:32.32 0.3 undecidable manual P 206 0.331 91 0.14 70
NI.VINO.HHE. 2021-10-20T00:21:32.70 0.6 undecidable manual P 122 0.3642 91 -0.05 47
OX.BAD.HHE. 2021-10-20T00:21:32.67 0.1 undecidable manual P 126 0.357 91 0.04 94
OX.CIMO.HHE. 2021-10-20T00:21:31.58 0.3 undecidable manual P 243 0.2959 91 0 72
IV.FVI.HHZ. 2021-10-20T00:21:31.84 0.3 undecidable manual S 348 0.1538 96 -0.27 71
IV.STAL.HHZ. 2021-10-20T00:21:30.08 0.1 undecidable manual P 203 0.2032 93 0.09 97
OX.BOO.HHZ. 2021-10-20T00:21:30.25 0.3 undecidable manual P 124 0.2257 92 -0.14 72
OX.FUSE.HHZ. 2021-10-20T00:21:30.89 0.1 undecidable manual S 105 0.1241 105 -0.36 93
OX.MPRI.HHZ. 2021-10-20T00:21:30.44 0.1 undecidable manual P 152 0.2338 92 -0.08 97
OX.PLRO.HHZ. 2021-10-20T00:21:30.94 0.1 undecidable manual P 65 0.2437 92 0.25 92
IV.FVI.HHZ. 2021-10-20T00:21:29.22 0.1 undecidable manual P 348 0.1538 96 0.07 97
NI.PURA.HHZ. 2021-10-20T00:21:29.83 0.1 undecidable manual S 251 0.0621 139 0.12 100
OX.CLUD.HHZ. 2021-10-20T00:21:28.96 0.1 undecidable manual S 74 0.0387 153 -0.36 93
NI.PURA.HHZ. 2021-10-20T00:21:28.07 0.1 undecidable manual P 251 0.0621 139 0.31 95
OX.FUSE.HHZ. 2021-10-20T00:21:28.72 0.1 undecidable manual P 105 0.1241 105 0.07 98
OX.CLUD.HHZ. 2021-10-20T00:21:27.67 0.1 positive manual P 74 0.0387 153 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.CLUD.HHN. ML:0.6 5.4246045E-5 0.1 AML other m 2021-10-20T00:21:29.09
OX.CLUD.HHE. ML:0.7 6.755E-5 0.08 AML other m 2021-10-20T00:21:29.19
IV.FVI.HHN. ML:0.3 1.51039185E-5 0.14 AML other m 2021-10-20T00:21:31.86
IV.FVI.HHE. ML:0.6 3.24E-5 0.18 AML other m 2021-10-20T00:21:32.09
IV.STAL.HHN. ML:1.1 7.9195675E-5 0.14 AML other m 2021-10-20T00:21:33.61
IV.STAL.HHE. ML:1.3 0.00011865 0.18 AML other m 2021-10-20T00:21:34.35
OX.CLUD.HNE. ML:0.6 6.0880445E-5 0.08 AML other m 2021-10-20T00:21:29.19
OX.CLUD.HNN. ML:0.6 5.4190975E-5 0.2 AML other m 2021-10-20T00:21:29.44
IV.STAL.HNE. ML:1.3 0.000123765 0.2 AML other m 2021-10-20T00:21:34.35
IV.STAL.HNN. ML:1.4 0.00016154815 0.2 AML other m 2021-10-20T00:21:33.86
OX.MPRI.HHE. ML:0.6 2.0737273E-5 0.34 AML other m 2021-10-20T00:21:35.37
OX.MPRI.HHN. ML:0.7 2.55271385E-5 0.1 AML other m 2021-10-20T00:21:34.99
OX.PLRO.HHE. ML:0.4 1.5008375E-5 0.2 AML other m 2021-10-20T00:21:36.70
OX.PLRO.HHN. ML:0.4 1.5373905E-5 0.2 AML other m 2021-10-20T00:21:35.62
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