Earthquake with magnitude of ML 0.9 on date 12-10-2019 and time 17:53:06 (Italy) in region V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA)

A magnitude ML 0.9 earthquake occured in region: V3 Monte Bianco (ITALIA, FRANCIA, SVIZZERA), on

  • 12-10-2019 15:53:06 (UTC)
  • 12-10-2019 17:53:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.9, 6.91 at 8 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 12 2807 2807
Pré-Saint-Didier AO 16 1050 3857
Morgex AO 18 2104 5961
La Thuile AO 20 761 6722

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
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire ( that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.9 2019-10-12
45.9 6.91 8 2019-10-12
Sala Sismica INGV-Roma 73219411
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2019-10-12 15:53:06 ± 0.17
Latitude 45.90 ± 0.01
Longitude 6.91 ± 0.02
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73219411


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1661
Semi-minor axis of confidence ellipse (meter) 1070
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 1660
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
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) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.77971
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information


Field Value
Value 0.9
Uncertainty 0
Num. used stations 4
Type of magnitude ML
Reference to an origin 73219411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-12 16:07:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.MMK.HHE. 2019-10-12T15:53:21.03 0.1 undecidable manual P 78 0.7455 50 0.27 83
CH.GIMEL.HHZ. 2019-10-12T15:53:21.43 0.1 undecidable manual P 325 0.7797 50 0.09 85
CH.DIX.HHZ. 2019-10-12T15:53:20.09 0.3 undecidable manual S 62 0.3894 50 -0.82 56
GU.TRAV.HHZ. 2019-10-12T15:53:19.93 0.1 undecidable manual P 123 0.6961 50 0.02 88
GU.CIRO.HHZ. 2019-10-12T15:53:17.24 0.1 undecidable manual P 123 0.5423 50 -0.05 90
CH.DIX.HHZ. 2019-10-12T15:53:14.72 0.1 undecidable manual P 62 0.3894 50 0.05 93
GU.REMY.HHZ. 2019-10-12T15:53:13.74 0.6 undecidable manual S 109 0.1781 111 0.23 47
IV.MRGE.HHZ. 2019-10-12T15:53:12.88 0.6 undecidable manual S 141 0.1619 113 -0.05 49
IV.MRGE.HHZ. 2019-10-12T15:53:10.18 0.1 undecidable manual P 141 0.1619 113 0.12 96
GU.REMY.HHZ. 2019-10-12T15:53:10.75 0.1 undecidable manual P 109 0.1781 111 0.35 91
GU.BLANC.HHZ. 2019-10-12T15:53:08.95 0.3 undecidable manual S 165 0.0531 142 -0.54 67
GU.BLANC.HHZ. 2019-10-12T15:53:08.05 0.1 positive manual P 165 0.0531 142 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BLANC.HHN. ML:0 0.0010055 0.24 AML other m 2019-10-12T15:53:08.95
GU.BLANC.HHE. ML:0 0.001885 0.28 AML other m 2019-10-12T15:53:09.05
IV.MRGE.HHE. ML:0.9 6.625E-5 1.78 AML other m 2019-10-12T15:53:13.09
GU.REMY.HHN. ML:0.9 6.135E-5 1.54 AML other m 2019-10-12T15:53:13.15
IV.MRGE.HHN. ML:0.8 5.771003E-5 1.1904 AML other m 2019-10-12T15:53:13.55
GU.REMY.HHE. ML:0.8 4.844757E-5 3.136 AML other m 2019-10-12T15:53:15.71
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download