Earthquake with magnitude of ML 0.9 on date 04-03-2021 and time 06:02:19 (Italy) in region 2 km S Socchieve (UD)

A magnitude ML 0.9 earthquake occured in region: 2 km S Socchieve (UD), on

  • 04-03-2021 05:02:19 (UTC)
  • 04-03-2021 06:02:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.38, 12.82 at 10 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
Socchieve UD 2 908 908
Preone UD 4 246 1154
Ampezzo UD 4 1006 2160
Enemonzo UD 5 1319 3479
Raveo UD 7 458 3937
Villa Santina UD 9 2233 6170
Tramonti di Sopra PN 9 321 6491
Lauco UD 10 729 7220
Tramonti di Sotto PN 11 387 7607
Forni di Sotto UD 12 600 8207
Ovaro UD 12 1922 10129
Sauris UD 13 416 10545
Verzegnis UD 13 863 11408
Comeglians UD 15 516 11924
Tolmezzo UD 15 10440 22364
Prato Carnico UD 15 904 23268
Cavazzo Carnico UD 17 1052 24320
Ravascletto UD 18 536 24856
Zuglio UD 18 595 25451
Arta Terme UD 18 2171 27622
Rigolato UD 19 448 28070
Clauzetto PN 19 380 28450
Meduno PN 19 1574 30024
Sutrio UD 19 1332 31356
Forni di Sopra UD 19 993 32349
Vito d'Asio PN 20 769 33118

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NW of Udine (99169 inhabitants)
49 Km N of Pordenone (51229 inhabitants)
91 Km NE of Treviso (83731 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 0.9 2021-03-04
05:02:19
46.38 12.82 10 2021-03-04
05:08:12
Sala Sismica INGV-Roma 87699081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-04 05:02:19 ± 0.12
Latitude 46.38 ± 0.00
Longitude 12.82 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87699081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 573
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
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
Epicentral distance of station farthest from the epicenter (degree) 0.60524
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 87699081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-04 05:08:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.DRE.HHZ. 2021-03-04T05:02:40.75 0.3 undecidable manual S 110 0.6052 50 0.66 58
MN.TRI.HHZ. 2021-03-04T05:02:36.43 3.0 positive manual P -0.16 0
OX.DRE.HHZ. 2021-03-04T05:02:31.58 0.3 undecidable manual P 110 0.6052 50 0.21 65
NI.VINO.HHZ. 2021-03-04T05:02:31.86 0.3 undecidable manual S 113 0.3381 50 -0.31 68
IV.FVI.HHZ. 2021-03-04T05:02:27.96 0.3 undecidable manual S 352 0.214 113 -0.42 68
NI.VINO.HHZ. 2021-03-04T05:02:26.40 0.3 undecidable manual P 113 0.3381 50 -0.4 67
OX.MPRI.HHZ. 2021-03-04T05:02:26.98 0.1 undecidable manual S 142 0.1835 116 -0.33 93
IV.STAL.HHZ. 2021-03-04T05:02:26.17 0.3 undecidable manual S 212 0.1466 121 0.08 74
NI.PALA.HHZ. 2021-03-04T05:02:26.43 0.3 undecidable manual S 154 0.1556 120 0.04 74
OX.FUSE.HHZ. 2021-03-04T05:02:25.43 0.1 undecidable manual S 76 0.1259 126 0.02 100
IV.FVI.HHZ. 2021-03-04T05:02:24.51 0.1 undecidable manual P 352 0.214 113 -0.1 97
OX.CLUD.HNZ. 2021-03-04T05:02:24.33 0.1 undecidable manual S 29 0.0827 138 0.18 98
IV.STAL.HHZ. 2021-03-04T05:02:23.46 0.1 undecidable manual P 212 0.1466 121 0.18 96
NI.PALA.HHZ. 2021-03-04T05:02:23.44 0.1 undecidable manual P 154 0.1556 120 -0.02 99
OX.MPRI.HHZ. 2021-03-04T05:02:23.88 0.1 undecidable manual P 142 0.1835 116 -0.11 97
OX.CLUD.HNZ. 2021-03-04T05:02:22.43 0.1 undecidable manual P 29 0.0827 138 0.26 96
OX.FUSE.HHZ. 2021-03-04T05:02:22.95 0.1 positive manual P 76 0.1259 126 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.MPRI.HHE. ML:0.9 5.885E-5 0.5 AML other m 2021-03-04T05:02:27.68
IV.STAL.HHN. ML:0.9 7.635E-5 0.66 AML other m 2021-03-04T05:02:27.55
OX.MPRI.HHN. ML:1.1 8.5E-5 0.5 AML other m 2021-03-04T05:02:27.43
IV.STAL.HHE. ML:0.8 5.1E-5 0.14 AML other m 2021-03-04T05:02:27.75
IV.FVI.HHE. ML:1 7.225E-5 0.16 AML other m 2021-03-04T05:02:28.53
IV.FVI.HHN. ML:0.8 3.7E-5 0.54 AML other m 2021-03-04T05:02:28.62
NI.PALA.HHE. ML:1 7.335E-5 0.22 AML other m 2021-03-04T05:02:28.67
NI.PALA.HHN. ML:1 8.85E-5 1.6 AML other m 2021-03-04T05:02:28.81
IV.STAL.HNN. ML:1.1 0.0001104488 2.7296 AML other m 2021-03-04T05:02:27.76
OX.MPRI.HNN. ML:0.9 5.3845045E-5 0.3616 AML other m 2021-03-04T05:02:27.42
NI.VINO.HHE. ML:0.1 7.021926E-6 0.2624 AML other m 2021-03-04T05:02:33.91
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download