Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 30-01-2023 and time 23:45:00 (Italy) in region Slovenia (SLOVENIA)

A magnitude ML 1.8 earthquake occured in region: Slovenia (SLOVENIA), on

  • 30-01-2023 22:45:00 (UTC)
  • 30-01-2023 23:45:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.0760, 14.6610 at 7 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
84 Km NE 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 1.8 2023-01-30
22:45:00		 46.0762 14.6612 7 2024-03-01
17:18:14		 Bollettino Sismico Italiano INGV 120001171
Reviewed
Rev100 		ML 1.8 2023-01-30
22:45:00		 46.0488 14.677 6 2023-01-30
23:02:29		 Sala Sismica INGV-Roma 113923431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-30 22:45:00 ± 0.29
Latitude 46.0762 ± 0.0144
Longitude 14.6612 ± 0.0169
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 120001171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1636
Semi-minor axis of confidence ellipse (meter) 1142
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 1640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.41913
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 113923431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-30 23:02:29

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 120001171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-10 13:44:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2023-01-30T22:46:40.30 3.0 undecidable manual Sn -0.98 0
IV.CAR1.HHZ. 2023-01-30T22:46:39.70 3.0 negative manual Pn 0.91 0
IV.CAVE.HHZ. 2023-01-30T22:46:32.61 3.0 undecidable manual Sg 6.5 0
IV.CAMP.HHZ. 2023-01-30T22:46:30.94 3.0 undecidable manual Sn -9.99 0
IV.MF5.EHZ. 2023-01-30T22:46:25.92 3.0 undecidable manual Sn -4.84 0
IV.IMOL.HNZ. 2023-01-30T22:46:18.07 3.0 undecidable manual Sn -3.25 0
OX.BAD.HHE. 2023-01-30T22:45:34.65 0.6 undecidable manual S 280 110.3118 50 1.04 30
NI.VINO.HHZ. 2023-01-30T22:45:33.92 0.6 undecidable manual S 281 108.2139 50 0.86 33
OX.MLN.HHE. 2023-01-30T22:45:28.14 0.3 undecidable manual P 274 157.5201 50 1.08 39
IV.STAL.HHZ. 2023-01-30T22:45:26.96 0.3 undecidable manual P 278 151.2375 50 0.87 44
MN.TRI.HHZ. 2023-01-30T22:45:25.30 0.6 undecidable manual S 240 80.364 50 -0.32 42
OX.CLUD.HHE. 2023-01-30T22:45:25.67 0.3 undecidable manual P 288 142.8459 50 0.87 45
SL.BOJS.BHZ. 2023-01-30T22:45:25.36 0.6 undecidable manual S 144 78.1662 50 0.32 42
NI.DST2.HHE. 2023-01-30T22:45:25.83 0.6 undecidable manual S 235 80.9523 50 0.05 44
OE.ARSA.BHE. 2023-01-30T22:45:25.43 0.6 undecidable manual P 26 145.8429 50 0.17 37
OX.DRE.HHZ. 2023-01-30T22:45:24.83 0.6 undecidable manual S 278 78.8655 50 -0.39 41
OX.FUSE.HHE. 2023-01-30T22:45:24.29 0.6 undecidable manual P 287 132.7671 50 1.05 28
OX.PLRO.HHE. 2023-01-30T22:45:22.80 0.3 undecidable manual P 295 127.2726 50 0.41 56
RF.GEPF.HHE. 2023-01-30T22:45:20.76 0.3 undecidable manual P 281 118.992 50 -0.37 57
OX.BOO.HHE. 2023-01-30T22:45:20.94 0.6 undecidable manual P 283 122.988 50 -0.8 32
NI.VINO.HHZ. 2023-01-30T22:45:19.02 0.3 undecidable manual P 281 108.2139 50 -0.44 57
OX.BAD.HHE. 2023-01-30T22:45:18.84 0.3 undecidable manual P 280 110.3118 50 -0.94 47
OX.ACOM.HHZ. 2023-01-30T22:45:18.73 0.3 undecidable manual P 301 102.3198 50 0.18 61
IV.PTCC.HHE. 2023-01-30T22:45:18.46 0.6 undecidable manual P 291 106.8153 50 -0.78 34
OX.PRED.HHE. 2023-01-30T22:45:16.46 0.3 undecidable manual P 296 93.3399 50 -0.71 54
NI.DST2.HHE. 2023-01-30T22:45:15.18 0.6 undecidable manual P 235 80.9523 50 -0.08 44
MN.TRI.HHZ. 2023-01-30T22:45:14.87 0.3 undecidable manual P 240 80.364 50 -0.3 62
SL.BOJS.BHZ. 2023-01-30T22:45:14.87 0.3 undecidable manual P 144 78.1662 50 0.04 66
OX.DRE.HHZ. 2023-01-30T22:45:13.97 0.3 undecidable manual P 278 78.8655 50 -0.97 49
SL.LJU.BHZ. 2023-01-30T22:45:05.66 0.3 undecidable manual S 251 10.878 124 0.2 72
SL.LJU.BHZ. 2023-01-30T22:45:03.50 0.1 undecidable manual P 251 10.878 124 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
SL.LJU.BHE. ML:2.4 0.0037585125 1.6032 AML other m 2023-01-30T22:45:06.05
SL.LJU.BHN. ML:2.7 0.007895 1.8 AML other m 2023-01-30T22:45:06.05
OX.DRE.HHN. ML:2.0 0.00015668645 0.1792 AML other m 2023-01-30T22:45:26.59
OX.DRE.HNN. ML:2.0 0.0001479459 0.1664 AML other m 2023-01-30T22:45:26.51
SL.BOJS.BHE. ML:1.8 0.0000847 0.3 AML other m 2023-01-30T22:45:26.70
MN.TRI.HHE. ML:1.3 0.00002913062 0.2304 AML other m 2023-01-30T22:45:27.68
OX.DRE.HHE. ML:2.0 0.0001305698 0.1792 AML other m 2023-01-30T22:45:27.80
OX.DRE.HNE. ML:1.9 0.00011692455 0.1792 AML other m 2023-01-30T22:45:27.80
SL.BOJS.BHN. ML:1.7 0.00007455000000000001 0.2 AML other m 2023-01-30T22:45:29.85
MN.TRI.HHN. ML:1.2 0.000022100000000000002 0.98 AML other m 2023-01-30T22:45:31.04
OX.ACOM.HHN. ML:1.5 0.00003170312999999999 0.2176 AML other m 2023-01-30T22:45:32.65
OX.ACOM.HHE. ML:1.7 0.000045303685 0.2304 AML other m 2023-01-30T22:45:35.42
OX.ACOM.HNE. ML:1.8 0.0000667796 0.32 AML other m 2023-01-30T22:45:35.83
NI.VINO.HHN. ML:1.4 0.000022476795 0.4096 AML other m 2023-01-30T22:45:36.49
NI.VINO.HHE. ML:1.4 0.0000184014 0.2432 AML other m 2023-01-30T22:45:36.45
IV.STAL.HHE. ML:1.8 0.000028582050000000002 0.1792 AML other m 2023-01-30T22:45:48.86
IV.STAL.HHN. ML:1.8 0.00002945624 0.1792 AML other m 2023-01-30T22:45:49.40
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