Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 09-03-2020 and time 02:52:20 (Italy) in region Confine Italia Slovenia (SLOVENIA)

A magnitude ML 1.6 earthquake occured in region: Confine Italia Slovenia (SLOVENIA), on

  • 09-03-2020 01:52:20 (UTC)
  • 09-03-2020 02:52:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.1240, 13.6730 at 11 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Drenchia UD 7 115 115
Grimacco UD 7 342 457
Stregna UD 7 356 813
San Leonardo UD 11 1129 1942
Savogna UD 11 411 2353
San Pietro al Natisone UD 14 2171 4524
Pulfero UD 16 962 5486
San Floriano del Collio GO 17 796 6282
Prepotto UD 17 769 7051
Dolegna del Collio GO 18 370 7421
Torreano UD 19 2139 9560
Cividale del Friuli UD 19 11292 20852

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Udine (99169 inhabitants)
53 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 1.6 2020-03-09
01:52:20		 46.1243 13.6733 11 2020-07-18
21:08:26		 Bollettino Sismico Italiano INGV 77216391
Reviewed
Rev100 		ML 1.6 2020-03-09
01:52:20		 46.1227 13.6662 12 2020-03-09
02:42:16		 Sala Sismica INGV-Roma 77141541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-09 01:52:20 ± 0.1
Latitude 46.1243 ± 0.0045
Longitude 13.6733 ± 0.0117
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77216391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 886
Semi-minor axis of confidence ellipse (meter) 388
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.48833
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 77216391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-12 12:10:53

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 77141541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-09 02:42:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.MPRI.HHZ. 2020-03-09T01:52:37.64 0.3 undecidable manual S 284 54.2013 50 0.44 63
OX.ACOM.HHZ. 2020-03-09T01:52:35.39 0.3 undecidable manual S 345 48.5181 50 -0.29 66
MN.TRI.HHZ. 2020-03-09T01:52:35.44 0.3 undecidable manual S 171 46.62 50 0.27 66
IV.PTCC.HHZ. 2020-03-09T01:52:33.14 0.3 undecidable manual S 322 39.8268 50 -0.21 68
OX.BAD.HNE. 2020-03-09T01:52:32.32 0.3 undecidable manual S 290 35.1426 50 0.21 69
OX.PRED.HNZ. 2020-03-09T01:52:32.80 0.3 undecidable manual S 347 36.2415 50 0.39 66
NI.VINO.HHZ. 2020-03-09T01:52:31.52 0.1 undecidable manual S 295 33.744 50 -0.22 91
OX.MPRI.HHZ. 2020-03-09T01:52:30.38 0.3 undecidable manual P 284 54.2013 50 0.34 65
OX.ACOM.HHZ. 2020-03-09T01:52:29.37 0.3 undecidable manual P 345 48.5181 50 0.2 67
MN.TRI.HHZ. 2020-03-09T01:52:28.52 0.3 undecidable manual P 171 46.62 50 -0.35 65
OX.PRED.HNZ. 2020-03-09T01:52:27.33 0.1 undecidable manual P 347 36.2415 50 0.05 94
IV.PTCC.HHZ. 2020-03-09T01:52:27.54 0.1 undecidable manual P 322 39.8268 50 -0.28 89
OX.SABO.HHZ. 2020-03-09T01:52:26.74 0.1 undecidable manual S 191 15.4734 50 -0.12 96
NI.VINO.HHZ. 2020-03-09T01:52:26.64 0.1 undecidable manual P 295 33.744 50 -0.25 91
OX.BAD.HNE. 2020-03-09T01:52:26.91 0.1 undecidable manual P 290 35.1426 50 -0.19 92
OX.SABO.HHZ. 2020-03-09T01:52:24.15 0.1 undecidable manual P 191 15.4734 50 0.08 97
OX.DRE.HHZ. 2020-03-09T01:52:24.58 0.1 undecidable manual S 338 5.8941 152 -0.02 100
OX.DRE.HHZ. 2020-03-09T01:52:22.97 0.1 undecidable manual P 338 5.8941 152 0.2 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OX.SABO.HNE. ML:2.0 0.0008975 0.6 AML other m 2020-03-09T01:52:27.30
OX.SABO.HHE. ML:1.4 0.00021200000000000003 0.6 AML other m 2020-03-09T01:52:27.30
OX.SABO.HNN. ML:2.0 0.0009119999999999999 1.54 AML other m 2020-03-09T01:52:27.17
OX.SABO.HHN. ML:1.4 0.00024349999999999998 1.54 AML other m 2020-03-09T01:52:27.17
NI.VINO.HHE. ML:1.5 0.000122 1.68 AML other m 2020-03-09T01:52:31.07
NI.VINO.HHN. ML:1.4 0.00011700000000000001 1.68 AML other m 2020-03-09T01:52:31.11
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