Earthquake with magnitude of ML 1.7 on date 07-10-2019 and time 15:57:10 (Italy) in region 8 km N Courmayeur (AO)

A magnitude ML 1.7 earthquake occured in region: 8 km N Courmayeur (AO), on

  • 07-10-2019 13:57:10 (UTC)
  • 07-10-2019 15:57:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.86, 6.97 at 10 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.

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
Pré-Saint-Didier AO 11 1050 3857
Morgex AO 13 2104 5961
La Salle AO 15 2087 8048
La Thuile AO 16 761 8809
Saint-Rhémy-en-Bosses AO 17 338 9147
Saint-Oyen AO 20 203 9350

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
Bulletin
Rev1000
ML 1.7 2019-10-07
13:57:10
45.86 6.97 10 2020-02-28
16:41:59
Bollettino Sismico Italiano INGV 73494241
Reviewed
Rev100
ML 1.6 2019-10-07
13:57:10
45.86 6.97 10 2019-10-07
14:04:12
Sala Sismica INGV-Roma 73110051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-07 13:57:10 ± 0.22
Latitude 45.86 ± 0.01
Longitude 6.97 ± 0.02
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73494241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1482
Semi-minor axis of confidence ellipse (meter) 1225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 1480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.64661
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 73494241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-28 14:39:19

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 73110051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-07 14:04:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CIRO.HHE. 2019-10-07T13:57:27.57 0.3 undecidable manual S 122 0.4928 50 -0.48 64
CH.DIX.HHE. 2019-10-07T13:57:24.08 0.3 undecidable manual S 54 0.375 50 -0.48 66
GU.TRAV.HHZ. 2019-10-07T13:57:23.70 0.3 negative manual P 122 0.6466 50 0.37 64
GU.CIRO.HHE. 2019-10-07T13:57:20.82 0.3 undecidable manual P 122 0.4928 50 0.12 69
CH.DIX.HHE. 2019-10-07T13:57:18.90 0.3 undecidable manual P 54 0.375 50 0.22 70
GU.REMY.HHZ. 2019-10-07T13:57:16.77 0.3 undecidable manual S 101 0.134 123 -0.01 76
IV.MRGE.HHZ. 2019-10-07T13:57:15.89 0.3 undecidable manual S 145 0.1133 127 -0.25 73
IV.MRGE.HHZ. 2019-10-07T13:57:14.10 0.1 positive manual P 145 0.1133 127 0.28 96
GU.REMY.HHZ. 2019-10-07T13:57:14.56 0.1 positive manual P 101 0.134 123 0.37 94
GU.BLANC.HHZ. 2019-10-07T13:57:13.72 0.1 undecidable manual S 233 0.0297 161 -0.46 94
GU.BLANC.HHZ. 2019-10-07T13:57:12.86 0.1 negative manual P 233 0.0297 161 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BLANC.HHE. ML:1.6 0.000795 0.2 AML other m 2019-10-07T13:57:14.12
GU.BLANC.HHN. ML:1.8 0.001156 0.32 AML other m 2019-10-07T13:57:14.03
IV.MRGE.HHN. ML:1.6 0.000544 0.4 AML other m 2019-10-07T13:57:16.20
IV.MRGE.HHE. ML:1.7 0.0005875 0.08 AML other m 2019-10-07T13:57:16.13
GU.REMY.HHN. ML:1.3 0.0002005 0.18 AML other m 2019-10-07T13:57:16.96
GU.REMY.HHE. ML:1.2 0.0001605 0.12 AML other m 2019-10-07T13:57:16.81
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download