Earthquake with magnitude of ML 1.4 on date 17-10-2019 and time 23:34:58 (Italy) in region 5 km S La Salle (AO)

A magnitude ML 1.4 earthquake occured in region: 5 km S La Salle (AO), on

  • 17-10-2019 21:34:58 (UTC)
  • 17-10-2019 23:34:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.71, 7.08 at 11 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
La Salle AO 5 2087 2087
Avise AO 5 305 2392
Morgex AO 6 2104 4496
Arvier AO 7 873 5369
Saint-Nicolas AO 7 311 5680
Rhêmes-Saint-Georges AO 8 194 5874
Valgrisenche AO 9 196 6070
Introd AO 9 658 6728
Pré-Saint-Didier AO 9 1050 7778
La Thuile AO 10 761 8539
Villeneuve AO 10 1289 9828
Saint-Pierre AO 12 3165 12993
Courmayeur AO 13 2807 15800
Aymavilles AO 13 2086 17886
Sarre AO 14 4927 22813
Saint-Rhémy-en-Bosses AO 15 338 23151
Jovençan AO 16 736 23887
Rhêmes-Notre-Dame AO 16 89 23976
Valsavarenche AO 16 161 24137
Gressan AO 17 3387 27524
Saint-Oyen AO 17 203 27727
Etroubles AO 18 501 28228
Gignod AO 19 1710 29938
Aosta AO 19 34390 64328
Allein AO 19 229 64557
Charvensod AO 20 2468 67025

Municipalities with at least 50000 inhabitants

An earthquake occurred to
85 Km NW of Torino (890529 inhabitants)
92 Km NW of Moncalieri (57294 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
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 (http://www.haisentitoilterremoto.it/) 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 1.4 2019-10-17
21:34:58
45.71 7.08 11 2019-10-17
21:40:57
Sala Sismica INGV-Roma 73314321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-17 21:34:58 ± 0.13
Latitude 45.71 ± 0.01
Longitude 7.08 ± 0.02
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73314321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1508
Semi-minor axis of confidence ellipse (meter) 1043
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 302
Circular confidence region, given by single value of horizontal uncertainty (meter) 1510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.88134
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 73314321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-17 21:40:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.BHB.HHZ. 2019-10-17T21:35:27.22 0.6 undecidable manual S 171 0.8813 50 -0.11 42
GU.RSP.HHZ. 2019-10-17T21:35:17.81 0.6 undecidable manual S 167 0.5747 50 -0.42 42
GU.BHB.HHZ. 2019-10-17T21:35:16.05 0.6 undecidable manual P 171 0.8813 50 0.84 33
GU.TRAV.HHZ. 2019-10-17T21:35:15.80 0.6 undecidable manual S 112 0.5081 50 -0.46 42
CH.DIX.HHZ. 2019-10-17T21:35:13.77 0.6 undecidable manual S 32 0.438 50 -0.42 43
GU.CIRO.HHE. 2019-10-17T21:35:11.30 0.6 undecidable manual S 107 0.3597 50 -0.56 42
GU.SATI.HHZ. 2019-10-17T21:35:10.24 1.0 undecidable manual P 73 0.5774 50 0.24 22
GU.RSP.HHZ. 2019-10-17T21:35:10.45 0.6 negative manual P 167 0.5747 50 0.5 41
GU.TRAV.HHZ. 2019-10-17T21:35:09.56 1.0 positive manual P 112 0.5081 50 0.75 19
CH.DIX.HHZ. 2019-10-17T21:35:08.15 0.6 negative manual P 32 0.438 50 0.53 42
GU.LSD.HHE. 2019-10-17T21:35:07.71 0.6 undecidable manual S 171 0.2509 50 -0.94 36
GU.CIRO.HHE. 2019-10-17T21:35:06.68 0.1 undecidable manual P 107 0.3597 50 0.4 87
GU.REMY.HHZ. 2019-10-17T21:35:05.04 0.6 undecidable manual S 23 0.1421 124 -0.2 47
GU.BLANC.HHZ. 2019-10-17T21:35:05.46 0.6 undecidable manual S 324 0.1691 120 -0.67 42
GU.LSD.HHE. 2019-10-17T21:35:04.47 0.1 undecidable manual P 171 0.2509 50 0.05 96
GU.BLANC.HHZ. 2019-10-17T21:35:03.17 0.1 positive manual P 324 0.1691 120 0.21 94
GU.REMY.HHZ. 2019-10-17T21:35:02.90 0.3 negative manual P 23 0.1421 124 0.44 68
IV.MRGE.HHZ. 2019-10-17T21:35:02.38 0.6 undecidable manual S 350 0.063 147 -0.68 42
IV.MRGE.HHZ. 2019-10-17T21:35:01.22 0.1 undecidable manual P 350 0.063 147 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHE. ML:1.9 0.00109 0.46 AML other m 2019-10-17T21:35:02.60
IV.MRGE.HHN. ML:2 0.00155 0.48 AML other m 2019-10-17T21:35:02.60
GU.REMY.HHE. ML:1.5 0.0002675 0.28 AML other m 2019-10-17T21:35:05.28
GU.REMY.HHN. ML:1.3 0.000177 0.4 AML other m 2019-10-17T21:35:05.52
GU.BLANC.HHN. ML:1.1 9.565E-5 0.92 AML other m 2019-10-17T21:35:06.04
GU.BLANC.HHE. ML:1.1 0.00010375 0.28 AML other m 2019-10-17T21:35:06.51
CH.DIX.HHN. ML:1.6 0.0001068 0.8 AML other m 2019-10-17T21:35:14.77
CH.DIX.HHE. ML:1.7 0.0001358 0.76 AML other m 2019-10-17T21:35:14.55
GU.TRAV.HHN. ML:1.4 4.87E-5 0.28 AML other m 2019-10-17T21:35:16.17
GU.TRAV.HHE. ML:1.4 5.95E-5 0.48 AML other m 2019-10-17T21:35:16.75
GU.RSP.HHE. ML:1.2 3.095E-5 0.92 AML other m 2019-10-17T21:35:20.41
GU.RSP.HHN. ML:1.1 2.725E-5 0.42 AML other m 2019-10-17T21:35:26.40
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download