Earthquake with magnitude of ML 0.8 on date 03-03-2023 and time 00:23:40 (UTC) in region 1 km SE Stregna (UD)

A magnitude ML 0.8 earthquake occured in region: 1 km SE Stregna (UD), on

  • 03-03-2023 00:23:40 (UTC)
  • 03-03-2023 01:23:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.1220, 13.5860 at 18 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Stregna UD 1 356 356
Grimacco UD 4 342 698
San Leonardo UD 5 1129 1827
Savogna UD 6 411 2238
Drenchia UD 7 115 2353
San Pietro al Natisone UD 8 2171 4524
Pulfero UD 10 962 5486
Prepotto UD 12 769 6255
Torreano UD 12 2139 8394
Cividale del Friuli UD 12 11292 19686
Dolegna del Collio GO 13 370 20056
San Floriano del Collio GO 15 796 20852
Moimacco UD 16 1675 22527
Premariacco UD 16 4163 26690
Corno di Rosazzo UD 18 3219 29909
Faedis UD 19 2945 32854
Cormons GO 20 7414 40268

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Udine (99169 inhabitants)
54 Km N of Trieste (204420 inhabitants)
74 Km E of Pordenone (51229 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 0.8 2023-03-03
00:23:40
46.122 13.5863 18 2024-03-01
17:17:59
Bollettino Sismico Italiano INGV 115559291
Reviewed
Rev100
ML 1.3 2023-03-03
00:23:40
46.1128 13.5438 15 2023-03-03
00:33:03
Sala Sismica INGV-Roma 114948441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-03 00:23:40 ± 0.21
Latitude 46.1220 ± 0.0072
Longitude 13.5863 ± 0.0143
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115559291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 869
Semi-minor axis of confidence ellipse (meter) 829
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.48653
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 115559291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-14 16:51:53

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 114948441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-03 00:33:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.DST2.HHE. 2023-03-03T00:23:58.20 0.3 undecidable manual S 162 54.0015 99 0.68 63
OX.MPRI.HNZ. 2023-03-03T00:23:56.88 0.3 undecidable manual S 286 47.8188 101 0.97 55
MN.TRI.HHZ. 2023-03-03T00:23:55.61 0.3 undecidable manual S 163 47.8188 101 -0.29 65
OX.BOO.HNZ. 2023-03-03T00:23:54.89 0.6 undecidable manual S 300 43.4232 103 0.14 47
OX.PRED.HHE. 2023-03-03T00:23:53.10 0.6 undecidable manual S 357 35.6421 106 0.36 46
RF.GEPF.HHZ. 2023-03-03T00:23:53.11 0.6 undecidable manual S 296 38.3283 105 -0.33 45
NI.VINO.HHZ. 2023-03-03T00:23:50.11 0.1 undecidable manual S 302 27.9498 112 -0.7 80
OX.BAD.HHE. 2023-03-03T00:23:50.44 0.6 undecidable manual S 295 29.1486 111 -0.65 41
OX.MPRI.HNZ. 2023-03-03T00:23:49.64 0.3 undecidable manual P 286 47.8188 101 0.24 69
MN.TRI.HHZ. 2023-03-03T00:23:49.35 0.3 undecidable manual P 163 47.8188 101 -0.05 69
NI.DST2.HHE. 2023-03-03T00:23:49.91 0.6 undecidable manual P 162 54.0015 99 -0.42 42
OX.BOO.HNZ. 2023-03-03T00:23:48.66 0.3 undecidable manual P 300 43.4232 103 -0.07 70
RF.GEPF.HHZ. 2023-03-03T00:23:48.00 0.3 undecidable manual P 296 38.3283 105 0.03 72
OX.PRED.HHE. 2023-03-03T00:23:47.72 0.3 undecidable manual P 357 35.6421 106 0.15 72
OX.SABO.HHZ. 2023-03-03T00:23:47.80 0.3 undecidable manual S 166 15.3735 132 -0.13 72
OX.BAD.HHE. 2023-03-03T00:23:46.68 0.1 undecidable manual P 295 29.1486 111 0.06 98
OX.DRE.HHZ. 2023-03-03T00:23:46.40 0.1 undecidable manual S 38 7.2927 154 -0.22 96
NI.VINO.HHZ. 2023-03-03T00:23:46.17 0.1 negative manual P 302 27.9498 112 -0.29 92
OX.DRE.HHZ. 2023-03-03T00:23:44.25 0.1 undecidable manual P 38 7.2927 154 0.22 100
OX.SABO.HHZ. 2023-03-03T00:23:44.96 0.1 positive manual P 166 15.3735 132 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.DRE.HHE. ML:1.9 0.000669 0.36 AML other m 2023-03-03T00:23:46.47
OX.DRE.HHN. ML:1.7 0.0004645 0.4 AML other m 2023-03-03T00:23:46.52
OX.SABO.HHE. ML:1.5 0.000202 0.22 AML other m 2023-03-03T00:23:48.14
OX.SABO.HHN. ML:1.3 0.0001435 0.14 AML other m 2023-03-03T00:23:48.57
NI.VINO.HHN. ML:0.8 0.0000316 0.26 AML other m 2023-03-03T00:23:50.24
NI.VINO.HHE. ML:1.1 0.000056999999999999996 0.18 AML other m 2023-03-03T00:23:50.23
RF.GEPF.HHE. ML:0.5 0.000012122045500000001 0.16 AML other m 2023-03-03T00:23:53.94
RF.GEPF.HHN. ML:0.5 0.000012285914 0.24 AML other m 2023-03-03T00:23:53.98
IV.PTCC.HHN. ML:0.4 0.000010713177000000001 0.1 AML other m 2023-03-03T00:23:55.35
IV.PTCC.HHE. ML:0.4 0.0000118082465 0.1 AML other m 2023-03-03T00:23:55.87
MN.TRI.HHN. ML:0.6 0.000009110465 0.12 AML other m 2023-03-03T00:23:56.35
MN.TRI.HHE. ML:0.8 0.000014497327500000001 0.18 AML other m 2023-03-03T00:23:56.99
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