Earthquake with magnitude of ML 1.4 on date 15-10-2021 and time 11:58:56 (UTC) in region Confine Italia Slovenia (SLOVENIA)

A magnitude ML 1.4 earthquake occured in region: Confine Italia Slovenia (SLOVENIA), on

  • 15-10-2021 11:58:56 (UTC)
  • 15-10-2021 13:58:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.0650, 13.6850 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.

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 11 356 356
San Floriano del Collio GO 12 796 1152
Grimacco UD 12 342 1494
Drenchia UD 13 115 1609
San Leonardo UD 14 1129 2738
Gorizia GO 15 34844 37582
Savogna UD 16 411 37993
Prepotto UD 16 769 38762
Dolegna del Collio GO 16 370 39132
San Pietro al Natisone UD 17 2171 41303
Mossa GO 18 1584 42887
Capriva del Friuli GO 19 1713 44600
San Lorenzo Isontino GO 19 1564 46164
Pulfero UD 20 962 47126
Cividale del Friuli UD 20 11292 58418
Cormons GO 20 7414 65832

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Udine (99169 inhabitants)
47 Km N of Trieste (204420 inhabitants)
80 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 1.4 2021-10-15
11:58:56
46.0653 13.6848 7 2022-03-30
13:04:26
Bollettino Sismico Italiano INGV 99285451
Reviewed
Rev100
ML 1.5 2021-10-15
11:58:56
46.0402 13.7293 10 2021-10-15
12:21:26
Sala Sismica INGV-Roma 96611021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-15 11:58:56 ± 0.21
Latitude 46.0653 ± 0.0054
Longitude 13.6848 ± 0.0181
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 99285451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1379
Semi-minor axis of confidence ellipse (meter) 287
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 1380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 219
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 7
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41189
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 96611021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-15 12:21:26

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 99285451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-11 20:16:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.FUORN.HHZ. 2021-10-15T11:59:19.21 3.0 undecidable manual Pg 8.78 0
IV.FIR.HHZ. 2021-10-15T11:59:19.36 3.0 undecidable manual Sg 3.62 0
NI.VINO.HHZ. 2021-10-15T11:59:10.34 0.3 undecidable manual S 304 37.7289 101 0.12 71
GU.ROTM.HHZ. 2021-10-15T11:59:06.84 3.0 undecidable manual Pg 3.01 0
IV.PTCC.HHZ. 2021-10-15T11:59:05.83 0.1 undecidable manual P 326 45.7209 50 0 96
NI.VINO.HHZ. 2021-10-15T11:59:04.36 0.3 undecidable manual P 304 37.7289 101 -0.22 70
SI.ROSI.HHZ. 2021-10-15T11:59:04.29 3.0 negative manual Pn -5.34 0
OX.SABO.HHZ. 2021-10-15T11:59:01.09 0.3 undecidable manual S 205 9.4794 127 0.09 75
IV.RIBO.EHZ.01 2021-10-15T11:59:01.02 3.0 undecidable manual Sg -3.88 0
OX.DRE.HHZ. 2021-10-15T11:59:01.62 0.3 undecidable manual S 346 12.3765 120 -0.21 73
OX.DRE.HHZ. 2021-10-15T11:59:00.02 0.1 positive manual P 346 12.3765 120 0.28 96
OX.SABO.HHZ. 2021-10-15T11:58:59.14 0.1 undecidable manual P 205 9.4794 127 -0.12 100
IV.CAFI.HNZ. 2021-10-15T11:58:47.35 3.0 undecidable manual Sn -9.99 0
IV.ISPIC.EHZ. 2021-10-15T11:58:47.32 3.0 undecidable manual Pg 2.69 0
IV.ATFO.HHZ. 2021-10-15T11:58:46.51 3.0 undecidable manual Sg -7.34 0
IV.MGR.HHZ. 2021-10-15T11:58:17.29 3.0 undecidable manual Sg -6.34 0
IV.RIBO.EHZ.01 2021-10-15T11:58:16.90 3.0 negative manual Pn -9.8 0
IV.CDRU.HHZ. 2021-10-15T11:58:10.64 3.0 undecidable manual S -2.66 0
IT.GLNS.HNZ. 2021-10-15T11:58:07.62 3.0 undecidable manual Sg -3.64 0
OT.OT15.EHZ. 2021-10-15T11:58:07.16 3.0 undecidable manual Pg -4.31 0
IX.COL3.HHZ.02 2021-10-15T11:58:04.11 3.0 undecidable manual Sg -6.01 0
IV.CDRU.HHZ. 2021-10-15T11:57:50.58 3.0 undecidable manual Pg -7.13 0
IV.PAOL.HHZ. 2021-10-15T11:57:49.65 3.0 undecidable manual S 3.62 0
IV.MCRV.HHZ. 2021-10-15T11:57:49.27 3.0 undecidable manual P -3.8 0
IV.POFI.HHZ. 2021-10-15T11:57:42.64 3.0 undecidable manual P -9.99 0
IV.RNI2.HHZ. 2021-10-15T11:57:41.57 3.0 undecidable manual P -9.14 0
IV.VITU.HHZ. 2021-10-15T11:57:37.43 3.0 undecidable manual P -5.81 0
IV.SGG.HHZ. 2021-10-15T11:57:37.59 3.0 undecidable manual P -6.26 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.SABO.HHE. ML:0.9 0.0001158212 0.1792 AML other m 2021-10-15T11:59:02.18
OX.SABO.HHN. ML:1.2 0.00024968285 0.384 AML other m 2021-10-15T11:59:02.10
OX.SABO.HNN. ML:1.8 0.0009752098 0.4608 AML other m 2021-10-15T11:59:02.10
OX.SABO.HNE. ML:1.5 0.0005380000000000001 0.18 AML other m 2021-10-15T11:59:02.27
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