Earthquake with magnitude of ML 0.8 on date 27-10-2023 and time 01:38:44 (Italy) in region 5 km S Viù (TO)

A magnitude ML 0.8 earthquake occured in region: 5 km S Viù (TO), on

  • 26-10-2023 23:38:44 (UTC)
  • 27-10-2023 01:38:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.1980, 7.3610 at 12 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

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 5 1051 1051
Lemie TO 6 179 1230
Rubiana TO 7 2400 3630
Val della Torre TO 8 3869 7499
Villar Dora TO 9 2932 10431
Caprie TO 9 2086 12517
Almese TO 9 6401 18918
Condove TO 10 4638 23556
Traves TO 10 518 24074
Varisella TO 10 810 24884
Sant'Ambrogio di Torino TO 11 4755 29639
Chiusa di San Michele TO 11 1647 31286
Mezzenile TO 11 786 32072
Pessinetto TO 11 606 32678
Germagnano TO 11 1201 33879
Vallo Torinese TO 11 774 34653
Givoletto TO 12 3914 38567
Usseglio TO 12 209 38776
Vaie TO 12 1458 40234
Sant'Antonino di Susa TO 12 4306 44540
Lanzo Torinese TO 12 5086 49626
Borgone Susa TO 12 2229 51855
La Cassa TO 13 1788 53643
Fiano TO 13 2695 56338
Monastero di Lanzo TO 13 350 56688
San Didero TO 13 551 57239
Ceres TO 13 1065 58304
Avigliana TO 13 12516 70820
Valgioie TO 14 951 71771
Cafasse TO 14 3451 75222
Ala di Stura TO 14 469 75691
Caselette TO 14 3060 78751
Coassolo Torinese TO 14 1547 80298
Villar Focchiardo TO 14 2042 82340
Bruzolo TO 14 1524 83864
Balangero TO 15 3156 87020
San Gillio TO 15 3174 90194
Buttigliera Alta TO 16 6419 96613
Mathi TO 16 3921 100534
Chianocco TO 16 1675 102209
Villanova Canavese TO 16 1186 103395
Balme TO 16 115 103510
Rosta TO 16 4903 108413
San Giorio di Susa TO 16 1024 109437
Cantoira TO 16 564 110001
Robassomero TO 17 3057 113058
Grosso TO 17 1018 114076
Coazze TO 17 3287 117363
Giaveno TO 17 16455 133818
Reano TO 17 1818 135636
Alpignano TO 17 17008 152644
Nole TO 17 6892 159536
Bussoleno TO 18 6094 165630
Pianezza TO 18 15152 180782
Druento TO 18 8622 189404
Trana TO 18 3877 193281
Chialamberto TO 19 345 193626
Corio TO 19 3277 196903
Villarbasse TO 19 3509 200412
Ciriè TO 20 18909 219321
Rivoli TO 20 48791 268112

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of Torino (890529 inhabitants)
34 Km NW of Moncalieri (57294 inhabitants)
74 Km W of Asti (76202 inhabitants)
91 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
Reviewed
Rev100
ML 0.8 2023-10-26
23:38:44
45.1975 7.3608 12 2023-10-26
23:43:44
Sala Sismica INGV-Roma 122427851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-26 23:38:44 ± 0.2
Latitude 45.1975 ± 0.0126
Longitude 7.3608 ± 0.0408
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122427851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3114
Semi-minor axis of confidence ellipse (meter) 1432
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 3110.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.08364
Epicentral distance of station farthest from the epicenter (degree) 0.88223
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 122427851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-26 23:43:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRGE.HHZ. 2023-10-26T23:39:04.11 0.6 undecidable manual S 340 67.5768 91 -0.43 41
CH.DIX.HHZ. 2023-10-26T23:39:00.50 1.0 undecidable manual P 2 97.9242 91 -0.05 21
GU.CIRO.HHZ. 2023-10-26T23:38:58.82 0.3 undecidable manual S 20 47.7189 92 -0.4 59
IV.MRGE.HHZ. 2023-10-26T23:38:56.74 0.1 positive manual P 340 67.5768 91 0.87 79
GU.BHB.HHZ. 2023-10-26T23:38:56.97 0.3 undecidable manual S 191 40.9257 92 -0.44 68
GU.LSD.HHZ. 2023-10-26T23:38:55.10 0.3 undecidable manual S 329 34.0437 93 -0.48 66
GU.BHB.HHZ. 2023-10-26T23:38:52.00 1.0 undecidable manual P 191 40.9257 92 0.25 24
GU.CIRO.HHZ. 2023-10-26T23:38:52.81 0.6 positive manual P 20 47.7189 92 0.01 46
GU.LSD.HHZ. 2023-10-26T23:38:51.10 1.0 undecidable manual P 329 34.0437 93 0.4 24
GU.RSP.HNZ. 2023-10-26T23:38:48.86 0.1 undecidable manual S 234 9.2796 130 -0.35 99
GU.RSP.HNZ. 2023-10-26T23:38:47.31 0.1 undecidable manual P 234 9.2796 130 0.29 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.LSD.HHE. ML:1.2 0.00006504109499999999 0.192 AML other m 2023-10-26T23:38:55.20
GU.LSD.HHN. ML:1.0 0.0000381891 0.1664 AML other m 2023-10-26T23:38:55.26
GU.BHB.HHE. ML:0.7 0.00001517483 0.4608 AML other m 2023-10-26T23:38:57.64
GU.BHB.HHN. ML:0.7 0.000013296780000000001 0.1664 AML other m 2023-10-26T23:38:57.64
GU.CIRO.HHE. ML:0.7 0.000013305854999999998 0.1408 AML other m 2023-10-26T23:38:59.19
GU.CIRO.HHN. ML:0.6 0.000009080761 0.256 AML other m 2023-10-26T23:38:59.79
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