Earthquake with magnitude of ML 1.2 on date 15-12-2023 and time 17:29:17 (Italy) in region 9 km W Saint Rhémy en Bosses (AO)

A magnitude ML 1.2 earthquake occured in region: 9 km W Saint Rhémy en Bosses (AO), on

  • 15-12-2023 16:29:17 (UTC)
  • 15-12-2023 17:29:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.8660, 7.0810 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Saint-Rhémy-en-Bosses AO 9 338 338
Saint-Oyen AO 11 203 541
Courmayeur AO 12 2807 3348
Morgex AO 13 2104 5452
Etroubles AO 13 501 5953
La Salle AO 13 2087 8040
Pré-Saint-Didier AO 13 1050 9090
Allein AO 16 229 9319
Saint-Nicolas AO 18 311 9630
Avise AO 18 305 9935
Ollomont AO 18 157 10092
Doues AO 18 510 10602
La Thuile AO 19 761 11363
Arvier AO 19 873 12236
Gignod AO 19 1710 13946
Valpelline AO 20 657 14603

Municipalities with at least 50000 inhabitants

An earthquake occurred to
100 Km NW of Torino (890529 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
Reviewed
Rev100
ML 1.2 2023-12-15
16:29:17
45.866 7.0808 11 2023-12-15
16:36:32
Sala Sismica INGV-Roma 124045231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-15 16:29:17 ± 0.24
Latitude 45.8660 ± 0.0099
Longitude 7.0808 ± 0.0336
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124045231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2631
Semi-minor axis of confidence ellipse (meter) 890
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 2630.0
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 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 124045231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-15 16:36:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RNCA.HHZ. 2023-12-15T16:30:18.03 3.0 undecidable manual Sn 0.08 0
GU.CIRO.HHZ. 2023-12-15T16:29:33.11 0.3 undecidable manual S 128 47.7189 50 0.09 69
GU.LSD.HHZ. 2023-12-15T16:29:31.74 0.6 undecidable manual S 175 45.3213 50 -0.61 41
CH.DIX.HHZ. 2023-12-15T16:29:29.24 0.3 undecidable manual S 47 34.6431 50 -0.28 69
GU.CIRO.HHZ. 2023-12-15T16:29:27.08 1.0 undecidable manual P 128 47.7189 50 0.54 21
GU.LSD.HHZ. 2023-12-15T16:29:26.47 0.1 undecidable manual P 175 45.3213 50 0.31 89
CH.DIX.HHZ. 2023-12-15T16:29:24.59 0.1 undecidable manual P 47 34.6431 50 0.07 95
IV.MRGE.HHZ. 2023-12-15T16:29:22.77 0.3 undecidable manual S 188 10.7781 134 -0.17 73
IV.MRGE.HHZ. 2023-12-15T16:29:20.76 0.1 undecidable manual P 188 10.7781 134 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHE. ML:1.5 0.000347 1.66 AML other m 2023-12-15T16:29:22.85
IV.MRGE.HHN. ML:1.2 0.0002055 1.74 AML other m 2023-12-15T16:29:23.93
CH.DIX.HHE. ML:1.2 0.00006956941999999999 0.1664 AML other m 2023-12-15T16:29:29.66
CH.DIX.HHN. ML:1.5 0.000130843505 0.2944 AML other m 2023-12-15T16:29:29.72
GU.LSD.HHE. ML:1.2 0.000049308569999999995 0.1408 AML other m 2023-12-15T16:29:31.92
GU.LSD.HHN. ML:0.8 0.00001994629 0.064 AML other m 2023-12-15T16:29:33.06
GU.CIRO.HHN. ML:0.7 0.000017124475 3.0208 AML other m 2023-12-15T16:29:35.33
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