Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 16-10-2019 and time 21:06:17 (Italy) in region V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA)

A magnitude ML 1.4 earthquake occured in region: V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA), on

  • 16-10-2019 19:06:17 (UTC)
  • 16-10-2019 21:06:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.8930, 6.9340 at 8 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 11 2807 2807
Pré-Saint-Didier AO 15 1050 3857
Morgex AO 17 2104 5961
La Salle AO 19 2087 8048
La Thuile AO 20 761 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 1.4 2019-10-16
19:06:17		 45.8928 6.9338 8 2020-02-28
16:42:13		 Bollettino Sismico Italiano INGV 74576911
Reviewed
Rev100 		ML 1.4 2019-10-16
19:06:16		 45.8958 6.9285 8 2019-10-16
19:18:53		 Sala Sismica INGV-Roma 73291221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-16 19:06:17 ± 0.2
Latitude 45.8928 ± 0.0135
Longitude 6.9338 ± 0.0142
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74576911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1476
Semi-minor axis of confidence ellipse (meter) 1127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 176
Circular confidence region, given by single value of horizontal uncertainty (meter) 1480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 1.22308
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 74576911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-12 11:16:29

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 73291221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-16 19:18:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RD.ORIF.BHE. 2019-10-16T19:06:40.34 1.0 undecidable manual P 218 135.7641 50 0.47 18
GU.RRL.HHE. 2019-10-16T19:06:35.63 0.3 undecidable manual P 186 108.4137 50 -0.02 64
CH.GIMEL.HHZ. 2019-10-16T19:06:32.99 0.3 undecidable manual P 324 87.6456 50 0.53 59
GU.TRAV.HHZ. 2019-10-16T19:06:30.66 0.3 undecidable manual P 124 75.7686 50 0.02 68
CH.DIX.HHZ. 2019-10-16T19:06:30.60 0.3 undecidable manual S 60 42.0246 50 -0.94 54
GU.SATI.HHZ. 2019-10-16T19:06:30.10 0.3 undecidable manual P 91 72.1722 50 0.03 68
GU.CIRO.HHZ. 2019-10-16T19:06:27.84 0.3 undecidable manual P 123 58.7967 50 -0.16 68
CH.DIX.HHZ. 2019-10-16T19:06:25.43 0.1 undecidable manual P 60 42.0246 50 0 97
GU.REMY.HHZ. 2019-10-16T19:06:24.27 0.3 undecidable manual S 109 18.2706 112 0.35 71
IV.MRGE.HHZ. 2019-10-16T19:06:23.55 0.6 undecidable manual S 144 16.7721 114 0.07 50
GU.REMY.HHZ. 2019-10-16T19:06:21.47 0.1 positive manual P 109 18.2706 112 0.44 92
IV.MRGE.HHZ. 2019-10-16T19:06:20.90 0.1 positive manual P 144 16.7721 114 0.13 99
GU.BLANC.HHZ. 2019-10-16T19:06:19.59 0.3 undecidable manual S 180 5.3946 145 -0.69 65
GU.BLANC.HHZ. 2019-10-16T19:06:18.77 0.1 undecidable manual P 180 5.3946 145 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHN. ML:1.3 0.000182 0.34 AML other m 2019-10-16T19:06:21.34
IV.MRGE.HHE. ML:1.3 0.000192 0.32 AML other m 2019-10-16T19:06:23.61
GU.REMY.HHN. ML:1.6 0.0003095 0.44 AML other m 2019-10-16T19:06:24.54
GU.REMY.HHE. ML:1.2 0.00014900000000000002 0.24 AML other m 2019-10-16T19:06:24.77
CH.DIX.HHN. ML:1.6 0.0001278 1.66 AML other m 2019-10-16T19:06:30.10
CH.DIX.HHE. ML:1.6 0.00013585 1.58 AML other m 2019-10-16T19:06:31.01
GU.TRAV.HHE. ML:1.3 0.000032149999999999995 0.42 AML other m 2019-10-16T19:06:35.50
GU.SATI.HHE. ML:1.3 0.0000286 0.74 AML other m 2019-10-16T19:06:41.51
GU.TRAV.HHN. ML:1.5 0.0000428 0.62 AML other m 2019-10-16T19:06:43.52
GU.SATI.HHN. ML:1.2 0.0000226 0.5 AML other m 2019-10-16T19:06:46.73
CH.MUGIO.HHN. ML:1.7 0.000018500000000000002 1.58 AML other m 2019-10-16T19:06:56.19
CH.MUGIO.HHE. ML:1.7 0.00002005 0.4 AML other m 2019-10-16T19:07:06.86
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