Earthquake with magnitude of ML 1.3 on date 01-10-2022 and time 01:11:44 (Italy) in region 8 km NE Courmayeur (AO)

A magnitude ML 1.3 earthquake occured in region: 8 km NE Courmayeur (AO), on

  • 30-09-2022 23:11:44 (UTC)
  • 01-10-2022 01:11:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.8550, 7.0370 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
Courmayeur AO 8 2807 2807
Morgex AO 11 2104 4911
Pré-Saint-Didier AO 11 1050 5961
Saint-Rhémy-en-Bosses AO 12 338 6299
La Salle AO 12 2087 8386
Saint-Oyen AO 14 203 8589
Etroubles AO 16 501 9090
La Thuile AO 17 761 9851
Avise AO 18 305 10156
Saint-Nicolas AO 18 311 10467
Allein AO 19 229 10696
Arvier AO 20 873 11569

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 1.3 2022-09-30
23:11:44
45.8552 7.0368 11 2022-09-30
23:17:17
Sala Sismica INGV-Roma 110355761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-30 23:11:44 ± 0.15
Latitude 45.8552 ± 0.0081
Longitude 7.0368 ± 0.0155
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 110355761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1193
Semi-minor axis of confidence ellipse (meter) 875
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 1190.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.86245
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 110355761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-30 23:17:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.GIMEL.HHE. 2022-09-30T23:12:12.24 0.6 undecidable manual S 322 0.8624 50 0.02 44
CH.GIMEL.HHE. 2022-09-30T23:12:00.56 0.1 undecidable manual P 322 0.8624 50 0.19 84
GU.LSD.HHZ. 2022-09-30T23:11:58.16 0.6 undecidable manual S 170 0.4011 50 -0.39 44
CH.DIX.HHZ. 2022-09-30T23:11:56.12 0.3 undecidable manual S 49 0.3417 50 -0.68 61
GU.TRAV.HHZ. 2022-09-30T23:11:56.47 0.1 negative manual P 124 0.6025 50 0.56 82
GU.CIRO.HHZ. 2022-09-30T23:11:53.62 0.6 negative manual P 124 0.4488 50 0.33 45
GU.LSD.HHZ. 2022-09-30T23:11:52.49 0.1 undecidable manual P 170 0.4011 50 0.02 96
CH.DIX.HHZ. 2022-09-30T23:11:51.44 0.1 undecidable manual P 49 0.3417 50 -0.03 97
GU.REMY.HHE. 2022-09-30T23:11:49.50 0.6 undecidable manual S 102 0.0854 139 0.29 48
IV.MRGE.HHZ. 2022-09-30T23:11:48.92 0.6 undecidable manual S 169 0.0872 139 -0.33 48
GU.REMY.HHE. 2022-09-30T23:11:47.20 0.1 undecidable manual P 102 0.0854 139 0.12 100
IV.MRGE.HHZ. 2022-09-30T23:11:46.79 0.1 undecidable manual P 169 0.0872 139 -0.32 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHE. ML:1.3 0.0002715 0.24 AML other m 2022-09-30T23:11:49.10
IV.MRGE.HHN. ML:1.4 0.00030649999999999997 0.54 AML other m 2022-09-30T23:11:49.28
GU.TRAV.HHE. ML:1.2 0.000024 0.5 AML other m 2022-09-30T23:12:06.03
GU.TRAV.HHN. ML:1.2 0.000028749999999999997 0.48 AML other m 2022-09-30T23:12:08.08
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