Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 04-03-2017 and time 19:30:46 (Italy) in region 4 km SW Villar Focchiardo (TO)

A magnitude ML 1.3 earthquake occured in region: 4 km SW Villar Focchiardo (TO), on

  • 04-03-2017 18:30:46 (UTC)
  • 04-03-2017 19:30:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.0860, 7.1990 at 16 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
Villar Focchiardo TO 4 2042 2042
San Giorio di Susa TO 5 1024 3066
Borgone Susa TO 5 2229 5295
San Didero TO 6 551 5846
Sant'Antonino di Susa TO 6 4306 10152
Bruzolo TO 6 1524 11676
Bussoleno TO 7 6094 17770
Vaie TO 7 1458 19228
Chianocco TO 7 1675 20903
Mattie TO 8 687 21590
Coazze TO 9 3287 24877
Condove TO 10 4638 29515
Chiusa di San Michele TO 10 1647 31162
Roure TO 11 848 32010
Meana di Susa TO 11 826 32836
Caprie TO 11 2086 34922
Valgioie TO 11 951 35873
Mompantero TO 13 659 36532
Fenestrelle TO 13 544 37076
Sant'Ambrogio di Torino TO 13 4755 41831
Giaveno TO 13 16455 58286
Susa TO 13 6466 64752
Usseaux TO 14 186 64938
Perosa Argentina TO 14 3285 68223
Gravere TO 15 692 68915
Pomaretto TO 15 1009 69924
Villar Dora TO 15 2932 72856
Inverso Pinasca TO 15 730 73586
Avigliana TO 16 12516 86102
Giaglione TO 16 631 86733
Rubiana TO 16 2400 89133
Almese TO 16 6401 95534
Pinasca TO 16 3051 98585
Usseglio TO 17 209 98794
Venaus TO 17 907 99701
Chiomonte TO 17 916 100617
Lemie TO 18 179 100796
Perrero TO 18 659 101455
Cumiana TO 18 7826 109281
Massello TO 18 51 109332
Trana TO 18 3877 113209
Novalesa TO 18 534 113743
Reano TO 19 1818 115561
Villar Perosa TO 19 4092 119653
Buttigliera Alta TO 19 6419 126072
Cantalupa TO 19 2553 128625
Salza di Pinerolo TO 20 75 128700

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km W of Torino (890529 inhabitants)
39 Km W of Moncalieri (57294 inhabitants)
82 Km W of Asti (76202 inhabitants)
82 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 2017-03-04
18:30:46		 45.0862 7.199 16 2018-01-10
09:55:02		 Bollettino Sismico Italiano INGV 48819111
Reviewed
Rev100 		ML 1.3 2017-03-04
18:30:46		 45.0802 7.2395 15 2017-03-04
18:59:05		 Sala Sismica INGV-Roma 41968081
Reviewed
Rev100 		Md 2.0 2017-03-04
18:30:46		 45.0842 7.2223 15 2017-03-04
18:50:27		 Sala Sismica INGV-Roma 41967761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-04 18:30:46 ± 0.14
Latitude 45.0862 ± 0.0072
Longitude 7.1990 ± 0.0153
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 48819111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1144
Semi-minor axis of confidence ellipse (meter) 590
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.68978
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:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 48819111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-08-08 16:49:26

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 41968081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-04 18:59:05

Md:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude Md
Reference to an origin 41967761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-04 18:50:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRGE.HHZ. 2017-03-04T18:31:08.56 0.6 undecidable manual S 352 76.5678 94 -0.75 39
GU.TRAV.HHZ. 2017-03-04T18:31:05.09 0.6 undecidable manual S 42 63.7917 95 -0.81 38
GU.PZZ.HHE. 2017-03-04T18:31:05.68 0.6 undecidable manual S 186 64.5909 95 -0.45 44
GU.CIRO.HHZ. 2017-03-04T18:31:05.42 0.3 undecidable manual S 27 64.0914 95 -0.56 64
IV.MRGE.HHZ. 2017-03-04T18:31:00.27 0.1 undecidable manual P 352 76.5678 94 0.65 80
MN.BNI.HHZ. 2017-03-04T18:30:59.15 0.6 undecidable manual S 265 41.0256 99 -0.72 43
GU.RRL.HHE. 2017-03-04T18:30:58.39 0.6 undecidable manual S 240 36.9297 101 -0.4 47
GU.TRAV.HHZ. 2017-03-04T18:30:57.80 0.3 undecidable manual P 42 63.7917 95 0.14 71
GU.PZZ.HHE. 2017-03-04T18:30:57.81 0.6 undecidable manual P 186 64.5909 95 0.03 48
GU.CIRO.HHZ. 2017-03-04T18:30:57.99 0.1 undecidable manual P 27 64.0914 95 0.3 91
GU.BHB.HHZ. 2017-03-04T18:30:56.19 0.6 undecidable manual S 170 28.2495 106 -0.37 48
MN.BNI.HHZ. 2017-03-04T18:30:54.41 0.1 undecidable manual P 265 41.0256 99 0.24 96
GU.RRL.HHE. 2017-03-04T18:30:53.76 0.1 undecidable manual P 240 36.9297 101 0.21 97
GU.BHB.HHZ. 2017-03-04T18:30:52.43 0.1 undecidable manual P 170 28.2495 106 0.18 100
GU.RSP.HHZ. 2017-03-04T18:30:51.96 0.6 undecidable manual S 37 8.5803 145 -0.16 52
GU.RSP.HHZ. 2017-03-04T18:30:50.00 0.1 undecidable manual P 37 8.5803 145 0.31 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.BNI.HHN. ML:0.7 0.000015840325000000003 0.3968 AML other m 2017-03-04T18:30:59.37
GU.CIRO.HHN. ML:1.0 0.000021818375 0.256 AML other m 2017-03-04T18:31:05.69
GU.CIRO.HHE. ML:1.2 0.000027829885 0.2688 AML other m 2017-03-04T18:31:05.70
IV.MRGE.HHN. ML:1.0 0.000013206007499999999 1.4496 AML other m 2017-03-04T18:31:09.09
GU.RSP.HNN. ML:1.6 0.00035486855 0.0896 AML other m 2017-03-04T18:30:52.11
GU.RSP.HHN. ML:1.6 0.00039575545 0.0896 AML other m 2017-03-04T18:30:52.15
GU.RSP.HHE. ML:1.6 0.0004067467 1.9232 AML other m 2017-03-04T18:30:51.01
GU.TRAV.HHE. ML:1.3 0.00003672947999999999 0.256 AML other m 2017-03-04T18:31:05.85
GU.TRAV.HHN. ML:1.3 0.00004157263 0.32 AML other m 2017-03-04T18:31:05.60
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
Waveforms Seismic signals in miniseed + resp format Download