Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 29-03-2021 and time 17:10:37 (UTC) in region Confine Italia Slovenia (SLOVENIA)

A magnitude ML 1.2 earthquake occured in region: Confine Italia Slovenia (SLOVENIA), on

  • 29-03-2021 17:10:37 (UTC)
  • 29-03-2021 19:10:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.3600, 13.4390 at 16 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Resia UD 10 1033 1033
Chiusaforte UD 11 672 1705
Dogna UD 14 175 1880
Taipana UD 14 636 2516
Malborghetto Valbruna UD 17 951 3467
Resiutta UD 17 309 3776
Lusevera UD 17 643 4419
Tarvisio UD 19 4326 8745
Pontebba UD 19 1433 10178
Moggio Udinese UD 20 1714 11892

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Udine (99169 inhabitants)
75 Km NE of Pordenone (51229 inhabitants)
83 Km NW of Trieste (204420 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.2 2021-03-29
17:10:37		 46.3597 13.4388 16 2021-07-12
16:55:15		 Bollettino Sismico Italiano INGV 91320481
Reviewed
Rev100 		ML 1.7 2021-03-29
17:10:37		 46.3597 13.4388 16 2021-03-29
17:26:24		 Sala Sismica INGV-Roma 88591891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-29 17:10:37 ± 0.11
Latitude 46.3597 ± 0.0045
Longitude 13.4388 ± 0.0039
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 91320481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 411
Semi-minor axis of confidence ellipse (meter) 310
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
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 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.39660
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 91320481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-15 09:50:17

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 88591891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-29 17:26:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.CLUD.HHZ. 2021-03-29T17:10:51.71 0.3 undecidable manual S 284 44.0226 98 0.28 67
NI.PALA.HHZ. 2021-03-29T17:10:51.04 0.3 undecidable manual S 252 41.4252 99 0.28 68
OX.PLRO.HHE. 2021-03-29T17:10:48.16 0.3 undecidable manual S 314 30.5472 104 0.25 69
OX.DRE.HHZ. 2021-03-29T17:10:46.83 0.3 undecidable manual S 143 26.0517 107 0.09 73
RF.GEPF.HHZ. 2021-03-29T17:10:46.41 0.3 undecidable manual S 248 24.8529 109 -0.03 73
OX.BOO.HHE. 2021-03-29T17:10:46.42 0.3 undecidable manual S 260 26.4513 107 -0.43 67
OX.BAD.HNZ. 2021-03-29T17:10:45.72 0.3 undecidable manual S 227 20.4684 115 0.37 69
OX.CLUD.HHZ. 2021-03-29T17:10:45.24 0.3 undecidable manual P 284 44.0226 98 -0.16 69
OX.SABO.HHZ. 2021-03-29T17:10:45.51 0.1 undecidable manual P 160 43.9227 98 0.13 93
NI.VINO.HHZ. 2021-03-29T17:10:44.58 0.3 undecidable manual S 227 17.1717 121 0.01 74
NI.PALA.HHZ. 2021-03-29T17:10:44.76 0.3 undecidable manual P 252 41.4252 99 -0.25 68
OX.MPRI.HHZ. 2021-03-29T17:10:44.25 0.3 undecidable manual P 249 37.0296 100 -0.08 71
OX.PLRO.HHE. 2021-03-29T17:10:43.45 0.1 undecidable manual P 314 30.5472 104 0.09 95
OX.PRED.HNZ. 2021-03-29T17:10:43.56 0.3 undecidable manual S 46 13.3755 130 -0.18 73
OX.FUSE.HHZ. 2021-03-29T17:10:43.85 0.3 undecidable manual P 280 34.0437 102 -0.03 72
OX.BOO.HHE. 2021-03-29T17:10:42.56 0.1 undecidable manual P 260 26.4513 107 -0.19 94
OX.DRE.HHZ. 2021-03-29T17:10:42.66 0.1 undecidable manual P 143 26.0517 107 -0.03 97
IV.PTCC.HHZ. 2021-03-29T17:10:42.73 0.3 undecidable manual S 309 8.3805 146 -0.12 74
OX.BAD.HNZ. 2021-03-29T17:10:42.11 0.1 undecidable manual P 227 20.4684 115 0.23 95
RF.GEPF.HHZ. 2021-03-29T17:10:42.43 0.1 undecidable manual P 248 24.8529 109 -0.08 96
OX.PRED.HNZ. 2021-03-29T17:10:41.00 0.1 undecidable manual P 46 13.3755 130 0.05 99
NI.VINO.HHZ. 2021-03-29T17:10:41.22 0.1 undecidable manual P 227 17.1717 121 -0.22 95
IV.PTCC.HHZ. 2021-03-29T17:10:40.49 0.1 undecidable manual P 309 8.3805 146 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
NI.VINO.HHE. ML:1.0 0.000070549715 0.1792 AML other m 2021-03-29T17:10:44.83
RF.GEPF.HHE. ML:1.5 0.00018182465 0.3072 AML other m 2021-03-29T17:10:46.64
RF.GEPF.HHN. ML:2.0 0.0005549999999999999 0.24 AML other m 2021-03-29T17:10:46.86
NI.PALA.HHN. ML:1.5 0.0000983 1.6 AML other m 2021-03-29T17:10:51.11
OX.CLUD.HHE. ML:1.1 0.00004033858 0.32 AML other m 2021-03-29T17:10:52.85
OX.CLUD.HHN. ML:1.0 0.000032357275 0.3328 AML other m 2021-03-29T17:10:52.93
NI.VINO.HHN. ML:1.1 0.00008743748999999999 0.256 AML other m 2021-03-29T17:10:44.87
NI.PALA.HHE. ML:1.2 0.000050497399999999995 0.192 AML other m 2021-03-29T17:10:51.43
OX.CLUD.HNE. ML:1.1 0.00003777646 0.4608 AML other m 2021-03-29T17:10:52.16
OX.CLUD.HNN. ML:1.1 0.000034635685 0.6784 AML other m 2021-03-29T17:10:51.82
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