Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 06-03-2023 and time 03:10:12 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.3 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 06-03-2023 03:10:12 (UTC)
  • 06-03-2023 04:10:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5220, 6.6860 at 8 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
70 Km W of Cuneo (56081 inhabitants)
95 Km SW of Moncalieri (57294 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 2023-03-06
03:10:12		 44.5217 6.686 8 2024-03-01
17:18:01		 Bollettino Sismico Italiano INGV 115875441
Reviewed
Rev100 		ML 1.7 2023-03-06
03:10:13		 44.5247 6.7632 10 2023-03-06
03:41:46		 Sala Sismica INGV-Roma 115022981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-06 03:10:12 ± 0.31
Latitude 44.5217 ± 0.0108
Longitude 6.6860 ± 0.0177
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115875441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1348
Semi-minor axis of confidence ellipse (meter) 844
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 1350.0
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 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.30667
Epicentral distance of station farthest from the epicenter (degree) 1.24646
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 115875441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-27 16:12:26

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 115022981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-06 03:41:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CIRO.HHZ. 2023-03-06T03:10:52.79 0.6 undecidable manual S 30 138.3615 50 0.27 40
GU.LSD.HHZ. 2023-03-06T03:10:44.64 1.0 undecidable manual S 19 109.8123 50 -0.27 21
GU.MGRO.HHZ. 2023-03-06T03:10:43.57 0.6 undecidable manual S 120 103.7184 50 0.28 43
GU.GBOS.HHZ. 2023-03-06T03:10:40.98 0.6 undecidable manual S 108 96.6255 50 -0.4 42
GU.CIRO.HHZ. 2023-03-06T03:10:36.61 0.1 undecidable manual P 30 138.3615 50 0.99 61
GU.LSD.HHZ. 2023-03-06T03:10:31.46 0.3 undecidable manual P 19 109.8123 50 0.24 63
GU.STV.HHZ. 2023-03-06T03:10:30.44 0.6 undecidable manual S 121 59.2962 50 -0.98 35
GU.BHB.HHZ. 2023-03-06T03:10:30.47 0.6 undecidable manual S 52 57.2982 50 -0.42 45
GU.MGRO.HHZ. 2023-03-06T03:10:30.94 0.3 undecidable manual P 120 103.7184 50 0.65 57
GU.GBOS.HHZ. 2023-03-06T03:10:29.55 0.1 undecidable manual P 108 96.6255 50 0.36 85
GU.RSP.HNN. 2023-03-06T03:10:27.54 0.3 undecidable manual P 33 83.0502 50 0.44 64
GU.RRL.HHE. 2023-03-06T03:10:27.02 0.6 undecidable manual S 10 45.0216 50 -0.6 43
RD.ORIF.BHE. 2023-03-06T03:10:25.57 0.1 undecidable manual P 305 77.2671 50 -0.64 81
GU.PZZ.HHZ. 2023-03-06T03:10:24.10 0.6 undecidable manual S 93 34.0437 50 -0.58 44
GU.ENR.HHZ. 2023-03-06T03:10:24.62 0.1 undecidable manual P 119 66.4779 50 0.08 95
GU.STV.HHZ. 2023-03-06T03:10:23.36 0.1 undecidable manual P 121 59.2962 50 -0.08 96
GU.BHB.HHZ. 2023-03-06T03:10:23.25 0.1 undecidable manual P 52 57.2982 50 0.12 96
GU.RRL.HHE. 2023-03-06T03:10:21.09 0.1 undecidable manual P 10 45.0216 50 -0.15 97
GU.PZZ.HHZ. 2023-03-06T03:10:19.43 0.1 undecidable manual P 93 34.0437 50 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.8 0.00023936425 0.12 AML other m 2023-03-06T03:10:24.48
GU.PZZ.HHE. ML:1.7 0.0002145 0.2 AML other m 2023-03-06T03:10:25.39
GU.BHB.HHN. ML:1.1 0.000027448450000000003 0.2192 AML other m 2023-03-06T03:10:32.48
GU.BHB.HHE. ML:1.1 0.000025753945 0.12 AML other m 2023-03-06T03:10:31.62
GU.STV.HHE. ML:1.2 0.000027894525 0.1408 AML other m 2023-03-06T03:10:30.86
GU.STV.HHN. ML:1.2 0.000027665465 0.12 AML other m 2023-03-06T03:10:32.20
GU.ENR.HHN. ML:1.5 0.000057243505 0.1008 AML other m 2023-03-06T03:10:35.28
GU.ENR.HHE. ML:1.6 0.00006253302000000001 0.0608 AML other m 2023-03-06T03:10:34.99
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