Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 02-11-2019 and time 11:54:29 (UTC) in region 6 km NE Courmayeur (AO)

A magnitude ML 1.3 earthquake occured in region: 6 km NE Courmayeur (AO), on

  • 02-11-2019 11:54:29 (UTC)
  • 02-11-2019 12:54:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.8460, 6.9950 at 10 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.

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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
Courmayeur AO 6 2807 2807
Pré-Saint-Didier AO 9 1050 3857
Morgex AO 10 2104 5961
La Salle AO 12 2087 8048
La Thuile AO 15 761 8809
Saint-Rhémy-en-Bosses AO 15 338 9147
Saint-Oyen AO 17 203 9350
Etroubles AO 19 501 9851
Avise AO 19 305 10156
Saint-Nicolas AO 20 311 10467

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 2019-11-02
11:54:29		 45.8455 6.9953 10 2019-11-02
12:05:20		 Sala Sismica INGV-Roma 73588991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-02 11:54:29 ± 0.18
Latitude 45.8455 ± 0.0108
Longitude 6.9953 ± 0.0155
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73588991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1347
Semi-minor axis of confidence ellipse (meter) 1014
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 222
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) 102
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 0.85346
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 73588991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-02 12:05:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.GIMEL.HHE. 2019-11-02T11:54:58.24 0.6 undecidable manual S 324 94.7385 50 0.69 37
GU.TRAV.HHZ. 2019-11-02T11:54:50.34 0.3 undecidable manual S 122 68.9754 50 -0.34 66
CH.GIMEL.HHE. 2019-11-02T11:54:46.60 0.6 undecidable manual P 324 94.7385 50 0.9 34
GU.CIRO.HHZ. 2019-11-02T11:54:45.67 0.6 undecidable manual S 121 51.9036 50 -0.46 44
GU.LSD.HHZ. 2019-11-02T11:54:43.65 0.3 undecidable manual S 166 44.1225 50 -0.4 68
GU.TRAV.HHZ. 2019-11-02T11:54:42.23 0.3 undecidable manual P 122 68.9754 50 0.49 64
CH.DIX.HHE. 2019-11-02T11:54:42.30 0.3 undecidable manual S 51 41.1255 50 -0.94 56
GU.CIRO.HHZ. 2019-11-02T11:54:39.35 0.3 undecidable manual P 121 51.9036 50 0.24 70
GU.LSD.HHZ. 2019-11-02T11:54:38.18 0.3 undecidable manual P 166 44.1225 50 0.27 70
CH.DIX.HHE. 2019-11-02T11:54:37.29 1.0 undecidable manual P 51 41.1255 50 -0.15 24
GU.REMY.HHZ. 2019-11-02T11:54:35.13 0.3 undecidable manual S 94 12.4764 128 0.09 77
IV.MRGE.HHZ. 2019-11-02T11:54:34.49 0.3 undecidable manual S 149 9.7791 135 0.14 77
GU.REMY.HHZ. 2019-11-02T11:54:33.09 0.1 positive manual P 94 12.4764 128 0.38 97
GU.BLANC.HHZ. 2019-11-02T11:54:32.33 0.3 undecidable manual S 268 4.7952 154 -0.98 59
IV.MRGE.HHZ. 2019-11-02T11:54:32.66 0.1 positive manual P 149 9.7791 135 0.35 98
GU.BLANC.HHZ. 2019-11-02T11:54:31.43 0.1 negative manual P 268 4.7952 154 -0.28 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.REMY.HHE. ML:1.6 0.00043802604999999996 0.1408 AML other m 2019-11-02T11:54:35.44
GU.REMY.HHN. ML:1.8 0.0006824475 0.1792 AML other m 2019-11-02T11:54:35.44
GU.CIRO.HHE. ML:0.9 0.000018589576 0.1408 AML other m 2019-11-02T11:54:46.74
GU.CIRO.HHN. ML:1.1 0.000030465145 0.16 AML other m 2019-11-02T11:54:46.18
GU.TRAV.HHE. ML:1.2 0.000024902069999999998 0.1984 AML other m 2019-11-02T11:54:53.55
GU.TRAV.HHN. ML:1.3 0.000033409785 0.1856 AML other m 2019-11-02T11:54:54.17
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