Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 06-02-2018 and time 07:01:50 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.2 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 06-02-2018 07:01:50 (UTC)
  • 06-02-2018 08:01:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.8320, 7.0020 at 9 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
Prali TO 8 246 246
Bobbio Pellice TO 10 563 809
Villar Pellice TO 13 1076 1885
Salza di Pinerolo TO 13 75 1960
Massello TO 15 51 2011
Perrero TO 15 659 2670
Rorà TO 16 257 2927
Sauze di Cesana TO 17 244 3171
Sestriere TO 17 929 4100
Torre Pellice TO 18 4551 8651
Angrogna TO 18 889 9540
Pramollo TO 19 258 9798
Crissolo CN 19 168 9966
Luserna San Giovanni TO 19 7395 17361
Pomaretto TO 20 1009 18370
Lusernetta TO 20 506 18876

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km W of Moncalieri (57294 inhabitants)
60 Km W of Torino (890529 inhabitants)
65 Km NW of Cuneo (56081 inhabitants)
95 Km W of Asti (76202 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 1.2 2018-02-06
07:01:50		 44.8318 7.0025 9 2019-04-24
14:49:31		 Bollettino Sismico Italiano INGV 56666871
Reviewed
Rev100 		ML 1.4 2018-02-06
07:01:49		 44.8552 7.0108 11 2018-02-06
07:07:08		 Sala Sismica INGV-Roma 53710671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-06 07:01:50 ± 0.12
Latitude 44.8318 ± 0.0090
Longitude 7.0025 ± 0.0089
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56666871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1073
Semi-minor axis of confidence ellipse (meter) 396
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 26
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.17447
Epicentral distance of station farthest from the epicenter (degree) 0.93799
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 56666871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-10 09:44:56

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 53710671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-06 07:07:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RD.ORIF.BHE. 2018-02-06T07:02:16.34 0.6 undecidable manual S 277 88.7445 50 -0.33 43
GU.ENR.HHZ. 2018-02-06T07:02:12.59 0.3 undecidable manual S 154 74.8695 50 -0.36 67
GU.STV.HHZ. 2018-02-06T07:02:11.59 0.6 undecidable manual S 158 69.8745 50 -0.05 48
IV.MRGE.HHZ. 2018-02-06T07:02:07.87 0.3 undecidable manual P 2 104.118 50 0.09 66
GU.CIRO.HHZ. 2018-02-06T07:02:06.73 0.3 undecidable manual P 27 96.2259 50 0.18 66
RD.ORIF.BHE. 2018-02-06T07:02:05.69 0.6 undecidable manual P 277 88.7445 50 0.28 44
GU.ENR.HHZ. 2018-02-06T07:02:03.68 0.6 undecidable manual P 154 74.8695 50 0.42 44
GU.STV.HHZ. 2018-02-06T07:02:02.88 0.6 undecidable manual P 158 69.8745 50 0.38 45
GU.BHB.HHZ. 2018-02-06T07:01:57.29 0.3 undecidable manual S 89 20.5683 113 -0.49 71
GU.RRL.HHZ. 2018-02-06T07:01:57.06 0.3 undecidable manual S 301 19.3695 115 -0.34 74
MN.BNI.HHZ. 2018-02-06T07:01:56.93 0.1 undecidable manual P 314 35.3424 50 -0.24 98
GU.RRL.HHZ. 2018-02-06T07:01:54.61 0.1 negative manual P 301 19.3695 115 0.33 99
GU.BHB.HHZ. 2018-02-06T07:01:54.76 0.1 positive manual P 89 20.5683 113 0.26 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RRL.HHN. ML:1.5 0.0002255 0.2 AML other m 2018-02-06T07:01:57.14
GU.RRL.HHE. ML:1.5 0.0002385 0.34 AML other m 2018-02-06T07:01:57.39
GU.BHB.HHE. ML:0.9 0.00005386953 0.0608 AML other m 2018-02-06T07:01:57.30
GU.BHB.HHN. ML:1.4 0.0001985 0.14 AML other m 2018-02-06T07:01:57.84
MN.BNI.HNN. ML:1.0 0.000042041904999999995 0.32 AML other m 2018-02-06T07:02:00.98
MN.BNI.HNE. ML:1.2 0.000062412845 0.3008 AML other m 2018-02-06T07:02:00.98
MN.BNI.HHE. ML:1.3 0.0000797 0.3 AML other m 2018-02-06T07:02:00.98
MN.BNI.HHN. ML:1.2 0.0000698 1.46 AML other m 2018-02-06T07:02:01.97
GU.STV.HHE. ML:1.0 0.000016872384999999997 0.24 AML other m 2018-02-06T07:02:11.88
GU.STV.HHN. ML:1.0 0.000017499367499999998 0.4608 AML other m 2018-02-06T07:02:12.03
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