Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 05-08-2015 and time 02:15:17 (Italy) in region 4 km SW Viù (TO)

A magnitude ML 1.2 earthquake occured in region: 4 km SW Viù (TO), on

  • 05-08-2015 00:15:17 (UTC)
  • 05-08-2015 02:15:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.2140, 7.3500 at 13 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
Viù TO 4 1051 1051
Lemie TO 5 179 1230
Rubiana TO 9 2400 3630
Traves TO 9 518 4148
Mezzenile TO 10 786 4934
Pessinetto TO 10 606 5540
Val della Torre TO 10 3869 9409
Caprie TO 11 2086 11495
Usseglio TO 11 209 11704
Germagnano TO 11 1201 12905
Villar Dora TO 11 2932 15837
Varisella TO 11 810 16647
Condove TO 11 4638 21285
Almese TO 11 6401 27686
Ceres TO 12 1065 28751
Vallo Torinese TO 12 774 29525
Ala di Stura TO 12 469 29994
Lanzo Torinese TO 12 5086 35080
Monastero di Lanzo TO 12 350 35430
Chiusa di San Michele TO 13 1647 37077
Sant'Ambrogio di Torino TO 13 4755 41832
Givoletto TO 13 3914 45746
Sant'Antonino di Susa TO 13 4306 50052
Borgone Susa TO 13 2229 52281
Coassolo Torinese TO 13 1547 53828
Vaie TO 13 1458 55286
Fiano TO 13 2695 57981
San Didero TO 14 551 58532
Cafasse TO 14 3451 61983
La Cassa TO 14 1788 63771
Balme TO 14 115 63886
Bruzolo TO 14 1524 65410
Cantoira TO 15 564 65974
Balangero TO 15 3156 69130
Villar Focchiardo TO 15 2042 71172
Valgioie TO 15 951 72123
Avigliana TO 15 12516 84639
Caselette TO 16 3060 87699
Chianocco TO 16 1675 89374
Mathi TO 16 3921 93295
San Giorio di Susa TO 16 1024 94319
Villanova Canavese TO 16 1186 95505
San Gillio TO 17 3174 98679
Chialamberto TO 17 345 99024
Grosso TO 17 1018 100042
Robassomero TO 17 3057 103099
Buttigliera Alta TO 18 6419 109518
Nole TO 18 6892 116410
Bussoleno TO 18 6094 122504
Rosta TO 18 4903 127407
Corio TO 18 3277 130684
Groscavallo TO 18 204 130888
Coazze TO 18 3287 134175
Giaveno TO 19 16455 150630
Alpignano TO 19 17008 167638
Reano TO 19 1818 169456
Pianezza TO 20 15152 184608
Druento TO 20 8622 193230

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Torino (890529 inhabitants)
35 Km NW of Moncalieri (57294 inhabitants)
76 Km W of Asti (76202 inhabitants)
93 Km N 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 1.2 2015-08-05
00:15:17		 45.2135 7.3503 13 2016-01-08
08:46:44		 Bollettino Sismico Italiano INGV 22219901
Reviewed
Rev100 		ML 1.2 2015-08-05
00:15:16		 45.2147 7.3492 5 2015-08-05
00:22:19		 Sala Sismica INGV-Roma 20707511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-08-05 00:15:17 ± 0.14
Latitude 45.2135 ± 0.0072
Longitude 7.3503 ± 0.0153
Depth (km) 13 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 22219901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1205
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 106
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 1.03152
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 20707511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-08-05 00:22:19

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 22219901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-11-12 22:50:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.REMY.HHZ. 2015-08-05T00:15:37.96 0.3 undecidable manual S 348 70.8735 91 -0.54 62
IV.MRGE.HHZ. 2015-08-05T00:15:36.78 0.3 undecidable manual S 340 65.6898 92 -0.34 66
GU.GBOS.HHZ. 2015-08-05T00:15:36.05 0.6 undecidable manual P 160 114.4965 91 -0.14 42
GU.ENR.HHN. 2015-08-05T00:15:34.12 0.6 undecidable manual P 177 109.6125 -1.31 27
GU.RRL.HHZ. 2015-08-05T00:15:33.93 0.3 undecidable manual S 234 54.501 92 -0.22 69
MN.BNI.HHZ. 2015-08-05T00:15:33.96 0.3 undecidable manual S 251 55.5999 92 -0.46 66
GU.CIRO.HHZ. 2015-08-05T00:15:31.51 0.3 undecidable manual S 21 46.3203 93 -0.44 67
GU.PZZ.HHE. 2015-08-05T00:15:31.25 0.3 undecidable manual P 193 80.5638 91 0.3 65
GU.REMY.HHZ. 2015-08-05T00:15:30.22 0.1 undecidable manual P 348 70.8735 91 0.75 77
GU.BHB.HHZ. 2015-08-05T00:15:30.20 0.3 undecidable manual S 189 42.5241 93 -0.74 61
GU.TRAV.HHZ. 2015-08-05T00:15:30.94 0.3 undecidable manual S 43 45.3213 93 -0.75 59
IV.MRGE.HHZ. 2015-08-05T00:15:29.30 0.1 undecidable manual P 340 65.6898 92 0.63 81
GU.LSD.HHZ. 2015-08-05T00:15:27.67 0.3 undecidable manual S 328 32.0457 94 -0.48 68
GU.RRL.HHZ. 2015-08-05T00:15:27.40 0.1 undecidable manual P 234 54.501 92 0.45 88
MN.BNI.HHZ. 2015-08-05T00:15:27.66 0.1 undecidable manual P 251 55.5999 92 0.55 85
IV.MONC.HHZ. 2015-08-05T00:15:27.15 0.3 undecidable manual P 109 47.7189 92 1.25 48
GU.TRAV.HHZ. 2015-08-05T00:15:25.48 0.1 undecidable manual P 43 45.3213 93 -0.05 97
GU.CIRO.HHZ. 2015-08-05T00:15:25.76 0.1 undecidable manual P 21 46.3203 93 0.08 97
GU.BHB.HHZ. 2015-08-05T00:15:24.79 0.3 undecidable manual P 189 42.5241 93 -0.31 69
GU.LSD.HHZ. 2015-08-05T00:15:23.81 0.1 undecidable manual P 328 32.0457 94 0.32 94
GU.RSP.HNN. 2015-08-05T00:15:22.26 0.6 undecidable manual S 223 9.879 130 -0.23 49
GU.RSP.HNN. 2015-08-05T00:15:20.48 0.1 undecidable manual P 223 9.879 130 0.26 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CIRO.HHE. ML:1.0 0.00002485 0.18 AML other m 2015-08-05T00:15:32.11
GU.CIRO.HHN. ML:1.0 0.000022590000000000002 1.26 AML other m 2015-08-05T00:15:33.54
GU.LSD.HHN. ML:1.2 0.00007215 0.34 AML other m 2015-08-05T00:15:28.12
GU.LSD.HHE. ML:1.3 0.00008985 0.84 AML other m 2015-08-05T00:15:28.28
GU.TRAV.HHE. ML:1.5 0.00009255 0.24 AML other m 2015-08-05T00:15:31.40
GU.TRAV.HHN. ML:1.3 0.0000553 1.28 AML other m 2015-08-05T00:15:31.10
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