Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 09-10-2019 and time 20:14:40 (Italy) in region V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA)

A magnitude ML 1.6 earthquake occured in region: V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA), on

  • 09-10-2019 18:14:40 (UTC)
  • 09-10-2019 20:14:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.8820, 6.9350 at 7 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Courmayeur AO 10 2807 2807
Pré-Saint-Didier AO 14 1050 3857
Morgex AO 16 2104 5961
La Thuile AO 18 761 6722
La Salle AO 18 2087 8809

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 1.6 2019-10-09
18:14:40		 45.8817 6.9352 7 2020-02-28
16:41:57		 Bollettino Sismico Italiano INGV 73371101
Reviewed
Rev100 		ML 1.6 2019-10-09
18:14:40		 45.8837 6.9388 8 2019-10-09
18:20:34		 Sala Sismica INGV-Roma 73164921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-09 18:14:40 ± 0.14
Latitude 45.8817 ± 0.0072
Longitude 6.9352 ± 0.0103
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73371101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 779
Semi-minor axis of confidence ellipse (meter) 764
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 1.37956
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 73371101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-21 09:37:42

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 73164921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-09 18:20:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BHB.HHZ. 2019-10-09T18:15:15.09 0.6 undecidable manual S 167 118.8921 50 -0.01 44
CH.GIMEL.HHZ. 2019-10-09T18:15:07.22 0.6 undecidable manual S 325 88.7445 50 0.16 46
GU.PZZ.HHZ. 2019-10-09T18:15:06.86 3.0 undecidable manual P 153.1356 1.28 0
GU.RSP.HHZ. 2019-10-09T18:15:05.93 0.6 undecidable manual S 162 85.3479 50 -0.22 46
CH.FUSIO.HHZ. 2019-10-09T18:15:05.29 0.6 undecidable manual P 64 147.1416 50 0.63 36
CH.MMK.HHN. 2019-10-09T18:15:04.52 0.6 undecidable manual S 76 81.4518 50 -0.61 41
RD.ORIF.BHE. 2019-10-09T18:15:03.23 0.6 undecidable manual P 218 134.865 50 0.48 39
GU.BHB.HHZ. 2019-10-09T18:15:00.83 0.6 undecidable manual P 167 118.8921 50 0.54 40
GU.RRL.HHE. 2019-10-09T18:14:58.40 0.6 undecidable manual P 186 107.2149 50 -0.09 45
MN.BNI.HHN. 2019-10-09T18:14:56.08 0.6 undecidable manual P 192 94.1391 50 -0.41 43
CH.GIMEL.HHZ. 2019-10-09T18:14:56.14 0.6 undecidable manual P 325 88.7445 50 0.49 43
GU.SATI.HHZ. 2019-10-09T18:14:55.83 3.0 undecidable manual P 72.0723 2.75 0
GU.RSP.HHZ. 2019-10-09T18:14:55.34 0.6 undecidable manual P 162 85.3479 50 0.22 46
CH.MMK.HHN. 2019-10-09T18:14:54.56 0.6 undecidable manual P 76 81.4518 50 0.03 48
CH.DIX.HHZ. 2019-10-09T18:14:54.11 0.6 undecidable manual S 59 42.624 50 -0.63 44
GU.TRAV.HHZ. 2019-10-09T18:14:53.43 0.3 undecidable manual P 123 75.0693 50 -0.11 71
GU.CIRO.HHZ. 2019-10-09T18:14:50.66 0.6 undecidable manual P 122 57.9975 50 -0.25 48
CH.DIX.HHZ. 2019-10-09T18:14:48.25 0.3 undecidable manual P 59 42.624 50 -0.28 73
GU.REMY.HHZ. 2019-10-09T18:14:47.24 0.6 undecidable manual S 106 17.7711 112 0.54 48
IV.MRGE.HHZ. 2019-10-09T18:14:46.36 0.6 undecidable manual S 142 15.7731 114 0.29 51
GU.REMY.HHZ. 2019-10-09T18:14:44.26 0.1 positive manual P 106 17.7711 112 0.36 100
IV.MRGE.HHZ. 2019-10-09T18:14:43.64 0.3 undecidable manual P 142 15.7731 114 0.12 79
GU.BLANC.HHZ. 2019-10-09T18:14:42.23 0.3 undecidable manual S 181 4.0959 150 -0.7 69
GU.BLANC.HHZ. 2019-10-09T18:14:41.52 0.3 undecidable manual P 181 4.0959 150 -0.19 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHE. ML:1.6 0.00042372780000000005 0.2816 AML other m 2019-10-09T18:14:46.47
IV.MRGE.HHN. ML:1.6 0.00044841255 0.1792 AML other m 2019-10-09T18:14:46.40
GU.REMY.HHN. ML:1.6 0.00034793735000000005 0.1536 AML other m 2019-10-09T18:14:47.33
GU.REMY.HHE. ML:1.3 0.00018073048 0.0768 AML other m 2019-10-09T18:14:44.44
CH.DIX.HHN. ML:1.8 0.0002029047 0.256 AML other m 2019-10-09T18:14:54.23
CH.DIX.HHE. ML:1.8 0.0002245913 0.1792 AML other m 2019-10-09T18:14:54.62
GU.CIRO.HHE. ML:1.3 0.00003785861 0.32 AML other m 2019-10-09T18:15:00.98
GU.CIRO.HHN. ML:1.3 0.000043219055 0.1024 AML other m 2019-10-09T18:15:01.13
GU.RSP.HHE. ML:1.5 0.0000377909535 0.1792 AML other m 2019-10-09T18:15:08.79
GU.RSP.HHN. ML:1.6 0.000043565039999999997 0.1792 AML other m 2019-10-09T18:15:07.37
CH.GIMEL.HHE. ML:1.6 0.000047628875 0.1408 AML other m 2019-10-09T18:15:12.16
CH.GIMEL.HHN. ML:1.5 0.000032542353500000005 0.1408 AML other m 2019-10-09T18:15:12.08
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