Earthquake (quarry blast) with magnitude of ML 1.0 on date 19-04-2023 and time 13:59:24 (Italy) in region Confine Italia Slovenia (SLOVENIA)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: Confine Italia Slovenia (SLOVENIA), on

  • 19-04-2023 11:59:24 (UTC)
  • 19-04-2023 13:59:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.0650, 13.6270 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 15 11292 54179
Capriva del Friuli GO 16 1713 55892
Corno di Rosazzo UD 16 3219 59111
Pulfero UD 16 962 60073
San Lorenzo Isontino GO 17 1564 61637
Cormons GO 17 7414 69051
Torreano UD 17 2139 71190
Premariacco UD 18 4163 75353
Moraro GO 18 768 76121
Savogna d'Isonzo GO 19 1717 77838
Moimacco UD 19 1675 79513
Farra d'Isonzo GO 19 1733 81246
San Giovanni al Natisone UD 20 6197 87443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 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 1.0 2023-04-19
11:59:24
46.0652 13.6267 1 2024-03-01
17:18:20
Bollettino Sismico Italiano INGV 124698711
Reviewed
Rev100
ML 1.1 2023-04-19
11:59:23
46.0583 13.6702 6 2023-04-19
12:42:20
Sala Sismica INGV-Roma 116518021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-19 11:59:24 ± 0.15
Latitude 46.0652 ± 0.0072
Longitude 13.6267 ± 0.0181
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 124698711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1370
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 1370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
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) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.51891
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:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 124698711
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-17 17:01:06

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 116518021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-19 12:42:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.PALA.HHZ. 2023-04-19T11:59:35.50 0.6 undecidable manual P 291 57.5979 90 -0.15 45
OX.ACOM.HHZ. 2023-04-19T11:59:34.62 0.3 undecidable manual P 351 54.2013 91 -0.37 64
OX.BAD.HNE. 2023-04-19T11:59:31.37 0.3 undecidable manual P 303 34.8429 91 0.27 68
NI.VINO.HHZ. 2023-04-19T11:59:30.90 0.3 undecidable manual P 308 34.1436 91 -0.06 71
OX.DRE.HHZ. 2023-04-19T11:59:26.72 0.1 undecidable manual P 7 12.0768 92 0.18 96
OX.SABO.HHZ. 2023-04-19T11:59:25.84 0.1 undecidable manual P 176 8.6802 93 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.DRE.HHN. ML:1.2 0.0002485 0.72 AML other m 2023-04-19T11:59:30.75
OX.DRE.HHE. ML:1.3 0.00030100000000000005 0.84 AML other m 2023-04-19T11:59:30.38
NI.VINO.HHE. ML:0.8 0.000027799999999999998 1.28 AML other m 2023-04-19T11:59:38.03
NI.VINO.HHN. ML:0.8 0.000025450000000000002 0.52 AML other m 2023-04-19T11:59:38.79
OX.ACOM.HHE. ML:1.1 0.000032149999999999995 1.04 AML other m 2023-04-19T11:59:44.26
OX.ACOM.HHN. ML:1.0 0.00002365 0.7 AML other m 2023-04-19T11:59:45.66
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