Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 16-10-2017 and time 20:56:47 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.3 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 16-10-2017 20:56:47 (UTC)
  • 16-10-2017 22:56:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8260, 6.6780 at 11 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
Claviere TO 14 214 214
Cesana Torinese TO 17 967 1181
Sauze di Cesana TO 19 244 1425

Municipalities with at least 50000 inhabitants

An earthquake occurred to
82 Km W of Moncalieri (57294 inhabitants)
84 Km W of Torino (890529 inhabitants)
84 Km NW of Cuneo (56081 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 1.3 2017-10-16
20:56:47		 44.8257 6.6782 11 2018-09-04
09:08:02		 Bollettino Sismico Italiano INGV 56983371
Reviewed
Rev100 		ML 1.3 2017-10-16
20:56:47		 44.8257 6.6813 11 2017-10-16
21:15:52		 Sala Sismica INGV-Roma 51050871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-10-16 20:56:47 ± 0.2
Latitude 44.8257 ± 0.0072
Longitude 6.6782 ± 0.0114
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56983371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 711
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.79860
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 56983371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-18 14:12:14

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 51050871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-10-16 21:15:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.ENR.HHZ. 2017-10-16T20:57:13.61 0.6 undecidable manual S 138 88.6446 50 -0.18 42
GU.STV.HHN. 2017-10-16T20:57:12.01 0.1 undecidable manual S 141 82.251 50 -0.07 88
GU.LSD.HHN. 2017-10-16T20:57:11.34 0.1 undecidable manual S 27 78.8655 50 0.17 86
RD.ORIF.BHN. 2017-10-16T20:57:06.61 0.1 undecidable manual S 280 63.5919 50 -0.49 83
GU.RSP.HHZ. 2017-10-16T20:57:06.19 0.3 undecidable manual S 52 58.2972 50 0.49 63
GU.ENR.HHZ. 2017-10-16T20:57:03.30 0.1 undecidable manual P 138 88.6446 50 0.59 76
GU.PZZ.HHZ. 2017-10-16T20:57:02.73 0.3 undecidable manual S 136 49.4172 50 -0.6 62
GU.STV.HHN. 2017-10-16T20:57:02.24 0.1 undecidable manual P 141 82.251 50 0.52 79
GU.LSD.HHN. 2017-10-16T20:57:01.78 0.1 undecidable manual P 27 78.8655 50 0.58 78
GU.BHB.HHZ. 2017-10-16T20:57:01.80 0.1 undecidable manual S 88 46.0206 50 -0.62 82
RD.ORIF.BHN. 2017-10-16T20:56:59.12 0.1 positive manual P 280 63.5919 50 0.27 87
GU.RSP.HHZ. 2017-10-16T20:56:58.50 0.3 undecidable manual P 52 58.2972 50 0.47 63
GU.PZZ.HHZ. 2017-10-16T20:56:56.42 0.1 undecidable manual P 136 49.4172 50 -0.24 90
MN.BNI.HHZ. 2017-10-16T20:56:56.20 0.3 undecidable manual S 360 25.1526 50 -0.63 64
GU.BHB.HHZ. 2017-10-16T20:56:56.25 0.1 positive manual P 88 46.0206 50 0.11 93
GU.RRL.HHZ. 2017-10-16T20:56:53.18 0.1 undecidable manual S 40 13.7751 128 -0.43 92
MN.BNI.HHZ. 2017-10-16T20:56:52.95 0.1 undecidable manual P 360 25.1526 50 0.04 98
GU.RRL.HHZ. 2017-10-16T20:56:51.09 0.1 positive manual P 40 13.7751 128 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHN. ML:1.2 0.000175 0.56 AML other m 2017-10-16T20:56:53.57
GU.RRL.HHE. ML:1.4 0.00022925000000000002 0.16 AML other m 2017-10-16T20:56:53.61
GU.RSP.HHE. ML:1.2 0.00003095 0.42 AML other m 2017-10-16T20:57:08.44
GU.RSP.HHN. ML:1.4 0.000051949999999999996 0.42 AML other m 2017-10-16T20:57:12.70
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