Earthquake (quarry blast) with magnitude of ML 1.3 on date 08-03-2023 and time 13:59:37 (Italy) in region Confine Italia Slovenia (SLOVENIA)

A magnitude ML 1.3 (quarry blast) earthquake occured in region: Confine Italia Slovenia (SLOVENIA), on

  • 08-03-2023 12:59:37 (UTC)
  • 08-03-2023 13:59:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.0660, 13.6310 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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 8 356 356
San Floriano del Collio GO 10 796 1152
San Leonardo UD 10 1129 2281
Grimacco UD 11 342 2623
Prepotto UD 12 769 3392
Dolegna del Collio GO 12 370 3762
Drenchia UD 12 115 3877
Savogna UD 13 411 4288
San Pietro al Natisone UD 13 2171 6459
Gorizia GO 14 34844 41303
Mossa GO 15 1584 42887
Cividale del Friuli UD 16 11292 54179
Capriva del Friuli GO 16 1713 55892
Corno di Rosazzo UD 16 3219 59111
Pulfero UD 17 962 60073
San Lorenzo Isontino GO 17 1564 61637
Cormons GO 17 7414 69051
Torreano UD 17 2139 71190
Moraro GO 18 768 71958
Premariacco UD 18 4163 76121
Savogna d'Isonzo GO 19 1717 77838
Moimacco UD 19 1675 79513
Farra d'Isonzo GO 20 1733 81246
San Giovanni al Natisone UD 20 6197 87443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Udine (99169 inhabitants)
47 Km N of Trieste (204420 inhabitants)
76 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 1.3 2023-03-08
12:59:37
46.0658 13.631 1 2024-03-01
17:18:18
Bollettino Sismico Italiano INGV 123524171
Reviewed
Rev100
ML 1.4 2023-03-08
12:59:36
46.0425 13.7083 9 2023-03-08
13:23:28
Sala Sismica INGV-Roma 115108861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-08 12:59:37 ± 0.16
Latitude 46.0658 ± 0.0072
Longitude 13.6310 ± 0.0207
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 123524171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1590
Semi-minor axis of confidence ellipse (meter) 770
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 1590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.39120
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 115108861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-08 13:23:28

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 123524171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-28 10:22:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTCC.HHZ. 2023-03-08T12:59:45.90 0.3 undecidable manual P 331 43.4232 91 -0.31 66
OX.PRED.HNZ. 2023-03-08T12:59:45.67 0.3 undecidable manual P 353 42.1245 91 -0.27 67
OX.BAD.HNZ. 2023-03-08T12:59:44.62 0.3 undecidable manual P 302 35.1426 91 0.08 71
NI.VINO.HHZ. 2023-03-08T12:59:44.53 0.1 undecidable manual P 307 34.3434 91 0.14 93
OX.DRE.HHZ. 2023-03-08T12:59:40.16 0.1 undecidable manual P 5 11.9769 92 0.25 95
OX.SABO.HHZ. 2023-03-08T12:59:39.23 0.1 undecidable manual P 179 8.6802 93 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.DRE.HHN. ML:1.2 0.000259 1.66 AML other m 2023-03-08T12:59:42.08
OX.DRE.HHE. ML:1.3 0.000314 1.32 AML other m 2023-03-08T12:59:42.95
OX.DRE.HNE. ML:1.3 0.00027800000000000004 1.34 AML other m 2023-03-08T12:59:42.96
OX.DRE.HNN. ML:1.2 0.0002415 0.64 AML other m 2023-03-08T12:59:43.40
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