Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 16-03-2021 and time 17:07:40 (UTC) in region 5 km S Resiutta (UD)

A magnitude ML 1.0 earthquake occured in region: 5 km S Resiutta (UD), on

  • 16-03-2021 17:07:40 (UTC)
  • 16-03-2021 18:07:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.3520, 13.2180 at 9 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.

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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
Resiutta UD 5 309 309
Venzone UD 6 2117 2426
Moggio Udinese UD 7 1714 4140
Resia UD 7 1033 5173
Bordano UD 9 754 5927
Chiusaforte UD 10 672 6599
Amaro UD 10 823 7422
Lusevera UD 10 643 8065
Gemona del Friuli UD 10 10964 19029
Montenars UD 11 538 19567
Artegna UD 13 2885 22452
Dogna UD 13 175 22627
Trasaghis UD 13 2227 24854
Cavazzo Carnico UD 14 1052 25906
Magnano in Riviera UD 14 2336 28242
Taipana UD 15 636 28878
Osoppo UD 15 2936 31814
Tarcento UD 15 9012 40826
Tolmezzo UD 17 10440 51266
Nimis UD 17 2740 54006
Buja UD 17 6563 60569
Verzegnis UD 18 863 61432
Treppo Grande UD 18 1708 63140
Pontebba UD 19 1433 64573
Zuglio UD 19 595 65168
Attimis UD 19 1805 66973
Cassacco UD 20 2938 69911
Arta Terme UD 20 2171 72082

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Udine (99169 inhabitants)
62 Km NE of Pordenone (51229 inhabitants)
89 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
Reviewed
Rev100 		ML 1.0 2021-03-16
17:07:40		 46.3522 13.2177 9 2021-03-16
17:17:41		 Sala Sismica INGV-Roma 88188451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-16 17:07:40 ± 0.06
Latitude 46.3522 ± 0.0027
Longitude 13.2177 ± 0.0039
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88188451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 285
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
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) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.38761
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:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 88188451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-16 17:17:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FVI.HHZ. 2021-03-16T17:07:54.56 0.3 undecidable manual S 309 43.0236 50 -0.32 67
OX.DRE.HHZ. 2021-03-16T17:07:53.75 0.3 undecidable manual S 121 38.3283 50 0.12 70
OX.CLUD.HHZ. 2021-03-16T17:07:50.46 0.3 undecidable manual S 294 28.2495 107 -0.22 70
OX.PRED.HNZ. 2021-03-16T17:07:50.60 0.3 undecidable manual S 69 28.4493 107 -0.15 71
OX.DRE.HHZ. 2021-03-16T17:07:48.07 0.3 undecidable manual P 121 38.3283 50 0.02 71
OX.FUSE.HHZ. 2021-03-16T17:07:48.08 0.3 undecidable manual S 293 17.9709 116 0.72 61
OX.MPRI.HNZ. 2021-03-16T17:07:48.49 0.3 undecidable manual S 235 21.5673 112 0 74
OX.PLRO.HNZ. 2021-03-16T17:07:48.80 0.3 undecidable manual S 346 22.4553 111 0 74
IV.FVI.HHZ. 2021-03-16T17:07:48.80 0.1 undecidable manual P 309 43.0236 50 0.03 94
OX.PRED.HNZ. 2021-03-16T17:07:46.25 0.3 undecidable manual P 69 28.4493 107 -0.14 71
OX.CLUD.HHZ. 2021-03-16T17:07:46.27 0.1 undecidable manual P 294 28.2495 107 -0.08 96
IV.PTCC.HHZ. 2021-03-16T17:07:45.46 0.3 undecidable manual S 59 12.0768 126 -0.16 73
OX.BAD.HNZ. 2021-03-16T17:07:45.84 0.3 undecidable manual S 171 13.2756 123 -0.1 73
OX.MPRI.HNZ. 2021-03-16T17:07:45.00 0.1 undecidable manual P 235 21.5673 112 -0.08 97
OX.PLRO.HNZ. 2021-03-16T17:07:45.19 0.1 undecidable manual P 346 22.4553 111 -0.07 97
RF.GEPF.HHZ. 2021-03-16T17:07:45.00 0.3 undecidable manual S 215 10.4784 130 -0.17 73
NI.VINO.HHZ. 2021-03-16T17:07:45.58 0.3 undecidable manual S 158 11.7771 127 0.05 74
OX.FUSE.HHZ. 2021-03-16T17:07:44.99 0.3 undecidable manual P 293 17.9709 116 0.56 65
OX.BOO.HHZ. 2021-03-16T17:07:44.55 0.3 undecidable manual S 248 9.7791 132 -0.45 69
RF.GEPF.HHZ. 2021-03-16T17:07:43.24 0.1 undecidable manual P 215 10.4784 130 0.07 99
NI.VINO.HHZ. 2021-03-16T17:07:43.52 0.1 undecidable manual P 158 11.7771 127 0.15 97
OX.BOO.HHZ. 2021-03-16T17:07:43.04 0.1 undecidable manual P 248 9.7791 132 -0.03 100
IV.PTCC.HHZ. 2021-03-16T17:07:43.60 0.1 undecidable manual P 59 12.0768 126 0.18 97
OX.BAD.HNZ. 2021-03-16T17:07:43.71 0.1 undecidable manual P 171 13.2756 123 0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
RF.GEPF.HHN. ML:1.1 0.000168 0.24 AML other m 2021-03-16T17:07:45.08
NI.VINO.HHN. ML:1.4 0.0003 0.18 AML other m 2021-03-16T17:07:45.72
RF.GEPF.HHE. ML:0.7 0.00007198392500000001 0.0768 AML other m 2021-03-16T17:07:45.46
NI.VINO.HHE. ML:1.4 0.0003085 0.12 AML other m 2021-03-16T17:07:45.76
IV.PTCC.HHN. ML:0.8 0.000075717775 0.128 AML other m 2021-03-16T17:07:45.80
IV.PTCC.HHE. ML:0.7 0.00006516143 0.1408 AML other m 2021-03-16T17:07:45.77
IV.FVI.HHE. ML:1.0 0.00003015449 0.2176 AML other m 2021-03-16T17:07:55.24
IV.FVI.HHN. ML:0.8 0.00002167552 0.2176 AML other m 2021-03-16T17:07:55.22
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