Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 07-02-2013 and time 21:17:00 (UTC) in region 2 km SE Sant'Ambrogio di Torino (TO)

A magnitude ML 1.7 earthquake occured in region: 2 km SE Sant'Ambrogio di Torino (TO), on

  • 07-02-2013 21:17:00 (UTC)
  • 07-02-2013 22:17:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.0850, 7.3690 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sant'Ambrogio di Torino TO 2 4755 4755
Avigliana TO 2 12516 17271
Valgioie TO 2 951 18222
Chiusa di San Michele TO 4 1647 19869
Villar Dora TO 4 2932 22801
Almese TO 4 6401 29202
Giaveno TO 5 16455 45657
Caprie TO 5 2086 47743
Buttigliera Alta TO 6 6419 54162
Condove TO 6 4638 58800
Reano TO 6 1818 60618
Rubiana TO 6 2400 63018
Trana TO 7 3877 66895
Vaie TO 7 1458 68353
Coazze TO 7 3287 71640
Rosta TO 8 4903 76543
Sant'Antonino di Susa TO 8 4306 80849
Villarbasse TO 9 3509 84358
Sangano TO 9 3707 88065
Caselette TO 9 3060 91125
Val della Torre TO 10 3869 94994
Bruino TO 11 8639 103633
Borgone Susa TO 11 2229 105862
Cumiana TO 11 7826 113688
Villar Focchiardo TO 11 2042 115730
Alpignano TO 12 17008 132738
Piossasco TO 13 18589 151327
Rivoli TO 13 48791 200118
Givoletto TO 13 3914 204032
San Didero TO 13 551 204583
Rivalta di Torino TO 13 19887 224470
Pianezza TO 14 15152 239622
San Gillio TO 15 3174 242796
Bruzolo TO 15 1524 244320
San Giorio di Susa TO 16 1024 245344
Collegno TO 16 49905 295249
Orbassano TO 16 23188 318437
La Cassa TO 16 1788 320225
Cantalupa TO 16 2553 322778
Frossasco TO 17 2864 325642
Grugliasco TO 17 37966 363608
Varisella TO 17 810 364418
Lemie TO 17 179 364597
Chianocco TO 17 1675 366272
Viù TO 17 1051 367323
Druento TO 17 8622 375945
Roletto TO 18 2009 377954
Beinasco TO 18 18159 396113
Bussoleno TO 18 6094 402207
Volvera TO 18 8840 411047
Vallo Torinese TO 19 774 411821
Piscina TO 19 3388 415209
Fiano TO 19 2695 417904
Pinasca TO 19 3051 420955
Inverso Pinasca TO 19 730 421685
Perosa Argentina TO 20 3285 424970
San Pietro Val Lemina TO 20 1448 426418

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Torino (890529 inhabitants)
27 Km W of Moncalieri (57294 inhabitants)
69 Km W of Asti (76202 inhabitants)
78 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 1.7 2013-02-07
21:17:00		 45.0847 7.3687 16 2015-01-20
11:22:40		 Bollettino Sismico Italiano INGV 3630751
Reviewed
Rev100 		ML 1.7 2013-02-07
21:16:59		 45.0798 7.3373 19 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2933141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-02-07 21:17:00 ± 0.15
Latitude 45.0847 ± 0.0090
Longitude 7.3687 ± 0.0166
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 3630751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1410
Semi-minor axis of confidence ellipse (meter) 218
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 1410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
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) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.90652
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:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 3630751
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:24:32

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 2933141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-02-07 21:23:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2013-02-07T21:17:17.62 0.1 undecidable manual P 158 100.6215 93 0.36 84
GU.TRAV.HHZ. 2013-02-07T21:17:17.12 0.3 undecidable manual S 32 55.8996 96 -0.64 62
GU.SATI.HHZ. 2013-02-07T21:17:16.28 0.1 undecidable manual P 24 95.9262 93 -0.25 86
GU.ENR.HHZ. 2013-02-07T21:17:15.62 0.1 undecidable manual P 178 95.238 93 -0.81 71
GU.REMY.HHZ. 2013-02-07T21:17:15.25 0.1 undecidable manual P 349 85.1481 94 0.37 86
IV.MRGE.HHZ. 2013-02-07T21:17:14.40 0.1 undecidable manual P 343 79.6647 94 0.36 87
GU.LSD.HHZ. 2013-02-07T21:17:14.01 0.6 undecidable manual S 336 45.4212 98 -0.98 38
GU.RRL.HHZ. 2013-02-07T21:17:14.84 0.6 undecidable manual S 248 48.8178 97 -1.04 36
GU.PZZ.HHZ. 2013-02-07T21:17:12.75 0.1 undecidable manual P 197 67.0773 95 0.64 82
IV.DOI.HHZ. 2013-02-07T21:17:11.39 0.1 undecidable manual P 189 65.0904 95 -0.41 88
GU.TRAV.HHZ. 2013-02-07T21:17:10.54 0.1 undecidable manual P 32 55.8996 96 0.15 95
GU.BHB.HHZ. 2013-02-07T21:17:10.11 0.6 undecidable manual S 197 28.8489 105 -0.54 45
MN.BNI.HHZ. 2013-02-07T21:17:10.09 0.1 undecidable manual P 266 54.2013 96 -0.03 98
GU.RRL.HHZ. 2013-02-07T21:17:09.39 0.1 undecidable manual P 248 48.8178 97 0.09 97
GU.LSD.HHZ. 2013-02-07T21:17:08.96 0.1 positive manual P 336 45.4212 98 0.18 96
GU.RSP.HHZ. 2013-02-07T21:17:06.48 0.6 undecidable manual S 311 10.6782 138 0.04 53
GU.BHB.HHZ. 2013-02-07T21:17:06.45 0.1 undecidable manual P 197 28.8489 105 0.17 100
GU.RSP.HHZ. 2013-02-07T21:17:04.36 0.1 undecidable manual P 311 10.6782 138 0.51 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHE. ML:1.8 0.00028849999999999997 0.24 AML other m 2013-02-07T21:17:11.25
GU.BHB.HHN. ML:1.8 0.00028300000000000005 0.62 AML other m 2013-02-07T21:17:10.90
MN.BNI.HHN. ML:1.4 0.0000526 1.36 AML other m 2013-02-07T21:17:16.23
MN.BNI.HHE. ML:1.4 0.0000518 1.26 AML other m 2013-02-07T21:17:17.40
IV.DOI.HHN. ML:1.7 0.00008925 1.42 AML other m 2013-02-07T21:17:18.29
IV.DOI.HHE. ML:1.6 0.0000734 1.2 AML other m 2013-02-07T21:17:25.59
GU.LSD.HHN. ML:1.7 0.0001455 0.68 AML other m 2013-02-07T21:17:16.13
GU.LSD.HHE. ML:1.8 0.000179 0.2 AML other m 2013-02-07T21:17:14.41
IV.MRGE.HHN. ML:1.7 0.00006670000000000001 0.2 AML other m 2013-02-07T21:17:24.73
IV.MRGE.HHE. ML:1.6 0.000056550000000000006 1.44 AML other m 2013-02-07T21:17:25.96
GU.PZZ.HHE. ML:1.8 0.0001088 1.4 AML other m 2013-02-07T21:17:24.27
GU.PZZ.HHN. ML:1.8 0.0001033 0.76 AML other m 2013-02-07T21:17:23.85
GU.RSP.HHE. ML:2.7 0.004359999999999999 0.12 AML other m 2013-02-07T21:17:06.66
GU.RSP.HHN. ML:3.0 0.008235 0.12 AML other m 2013-02-07T21:17:06.67
GU.TRAV.HHE. ML:1.8 0.00012220000000000002 0.94 AML other m 2013-02-07T21:17:20.47
GU.TRAV.HHN. ML:1.8 0.00013800000000000002 0.18 AML other m 2013-02-07T21:17:18.13
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