Earthquake with magnitude of ML 1.8 on date 21-11-2019 and time 21:54:53 (UTC) in region 1 km NW Valgioie (TO)

A magnitude ML 1.8 earthquake occured in region: 1 km NW Valgioie (TO), on

  • 21-11-2019 21:54:53 (UTC)
  • 21-11-2019 22:54:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.09, 7.33 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
Valgioie TO 1 951 951
Chiusa di San Michele TO 2 1647 2598
Sant'Ambrogio di Torino TO 3 4755 7353
Caprie TO 4 2086 9439
Vaie TO 4 1458 10897
Condove TO 4 4638 15535
Coazze TO 5 3287 18822
Sant'Antonino di Susa TO 5 4306 23128
Giaveno TO 5 16455 39583
Avigliana TO 6 12516 52099
Villar Dora TO 6 2932 55031
Almese TO 6 6401 61432
Rubiana TO 7 2400 63832
Borgone Susa TO 8 2229 66061
Villar Focchiardo TO 8 2042 68103
Buttigliera Alta TO 9 6419 74522
Reano TO 9 1818 76340
Trana TO 9 3877 80217
San Didero TO 10 551 80768
Rosta TO 11 4903 85671
Sangano TO 12 3707 89378
Villarbasse TO 12 3509 92887
Cumiana TO 12 7826 100713
Bruzolo TO 12 1524 102237
Val della Torre TO 12 3869 106106
Caselette TO 12 3060 109166
San Giorio di Susa TO 13 1024 110190
Bruino TO 13 8639 118829
Chianocco TO 14 1675 120504
Piossasco TO 15 18589 139093
Bussoleno TO 15 6094 145187
Alpignano TO 16 17008 162195
Givoletto TO 16 3914 166109
Cantalupa TO 16 2553 168662
Lemie TO 16 179 168841
Rivoli TO 16 48791 217632
Rivalta di Torino TO 16 19887 237519
Frossasco TO 17 2864 240383
Mattie TO 17 687 241070
Pianezza TO 17 15152 256222
San Gillio TO 17 3174 259396
ViĆ¹ TO 18 1051 260447
Inverso Pinasca TO 18 730 261177
Perosa Argentina TO 18 3285 264462
Pinasca TO 18 3051 267513
Roletto TO 18 2009 269522
Roure TO 18 848 270370
Pomaretto TO 18 1009 271379
La Cassa TO 19 1788 273167
Usseglio TO 19 209 273376
Orbassano TO 19 23188 296564
Varisella TO 19 810 297374
Collegno TO 19 49905 347279
Villar Perosa TO 19 4092 351371
San Pietro Val Lemina TO 20 1448 352819
Grugliasco TO 20 37966 390785
Piscina TO 20 3388 394173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Torino (890529 inhabitants)
30 Km W of Moncalieri (57294 inhabitants)
72 Km W of Asti (76202 inhabitants)
79 Km N of Cuneo (56081 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.8 2019-11-21
21:54:53
45.09 7.33 13 2019-11-21
22:04:03
Sala Sismica INGV-Roma 73954581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-21 21:54:53 ± 0.12
Latitude 45.09 ± 0.01
Longitude 7.33 ± 0.01
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73954581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 865
Semi-minor axis of confidence ellipse (meter) 535
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
Circular confidence region, given by single value of horizontal uncertainty (meter) 870
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.3975
Epicentral distance of station farthest from the epicenter (degree) 1.24196
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 73954581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-21 22:04:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2019-11-21T21:55:22.00 0.1 undecidable manual S 157 0.9191 91 -0.99 67
GU.REMY.HHZ. 2019-11-21T21:55:17.93 0.1 undecidable manual S 351 0.7608 91 -0.37 86
IV.MRGE.HHZ. 2019-11-21T21:55:16.67 0.1 undecidable manual S 345 0.7087 91 -0.08 92
IV.IMI.HHZ. 2019-11-21T21:55:15.86 1.0 undecidable manual P 161 1.242 91 -0.1 20
IV.QLNO.HHZ. 2019-11-21T21:55:13.55 0.3 positive manual P 136 1.0495 91 0.87 51
GU.RORO.HHZ. 2019-11-21T21:55:13.95 0.3 positive manual P 151 1.1062 91 0.32 61
RD.ORIF.BHZ. 2019-11-21T21:55:13.14 0.1 undecidable manual P 261 1.0369 91 0.68 76
GU.PZZ.HHZ. 2019-11-21T21:55:13.37 0.1 undecidable manual S 195 0.598 92 -0.12 94
GU.CANO.HHZ. 2019-11-21T21:55:13.94 0.6 negative manual P 143 1.09 91 0.57 38
FR.SAOF.HHZ.00 2019-11-21T21:55:12.74 0.6 negative manual P 172 1.1107 91 -0.98 31
GU.PCP.HHZ. 2019-11-21T21:55:12.78 0.6 undecidable manual P 122 1.0198 91 0.62 38
GU.CIRO.HHZ. 2019-11-21T21:55:11.28 0.3 undecidable manual S 18 0.5423 92 -0.54 64
GU.GBOS.HHZ. 2019-11-21T21:55:10.58 0.3 negative manual P 157 0.9191 91 0.14 66
GU.SATI.HHZ. 2019-11-21T21:55:09.61 1.0 negative manual P 25 0.875 91 -0.07 22
GU.REMY.HHZ. 2019-11-21T21:55:08.24 0.3 positive manual P 351 0.7608 91 0.51 64
GU.RRL.HHZ. 2019-11-21T21:55:08.11 0.1 undecidable manual S 247 0.4146 92 0.07 100
MN.BNI.HHZ. 2019-11-21T21:55:08.72 0.1 undecidable manual S 266 0.4605 92 -0.68 80
GU.STV.HHZ. 2019-11-21T21:55:08.16 0.1 undecidable manual P 180 0.84 91 -0.93 68
IV.MRGE.HHZ. 2019-11-21T21:55:07.19 0.3 positive manual P 345 0.7087 91 0.35 67
GU.LSD.HHZ. 2019-11-21T21:55:06.88 0.3 undecidable manual S 340 0.3975 93 -0.65 62
GU.PZZ.HHZ. 2019-11-21T21:55:04.73 1.0 negative manual P 195 0.598 92 -0.23 23
GU.CIRO.HHZ. 2019-11-21T21:55:04.14 0.6 undecidable manual P 18 0.5423 92 0.15 48
GU.TRAV.HHZ. 2019-11-21T21:55:03.72 0.1 undecidable manual P 34 0.518 92 0.14 96
MN.BNI.HHZ. 2019-11-21T21:55:03.03 0.6 positive manual P 266 0.4605 92 0.44 46
GU.RRL.HHZ. 2019-11-21T21:55:02.31 0.1 positive manual P 247 0.4146 92 0.51 92
GU.LSD.HHZ. 2019-11-21T21:55:01.90 0.1 positive manual P 340 0.3975 93 0.38 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.LSD.HHN. ML:2 0.000265 0.4 AML other m 2019-11-21T21:55:07.35
GU.LSD.HHE. ML:2.1 0.000409 0.18 AML other m 2019-11-21T21:55:07.37
GU.RRL.HHN. ML:1.8 0.000166 0.64 AML other m 2019-11-21T21:55:08.52
GU.RRL.HHE. ML:1.6 0.00012505 0.7 AML other m 2019-11-21T21:55:08.93
MN.BNI.HNN. ML:1.8 0.0001505 0.14 AML other m 2019-11-21T21:55:09.45
MN.BNI.HNE. ML:1.6 0.00010485 0.98 AML other m 2019-11-21T21:55:09.56
GU.TRAV.HHN. ML:1.9 0.0001635 1.18 AML other m 2019-11-21T21:55:11.32
GU.CIRO.HHE. ML:1.7 0.000103 0.42 AML other m 2019-11-21T21:55:12.77
GU.TRAV.HHE. ML:1.9 0.000167 0.2 AML other m 2019-11-21T21:55:12.70
GU.CIRO.HHN. ML:1.6 8.49E-5 0.22 AML other m 2019-11-21T21:55:12.84
GU.PZZ.HHN. ML:2.2 0.000253 0.16 AML other m 2019-11-21T21:55:15.68
GU.PZZ.HHE. ML:2.1 0.000244 1.84 AML other m 2019-11-21T21:55:16.94
IV.MRGE.HHN. ML:1.8 9.11E-5 0.54 AML other m 2019-11-21T21:55:17.09
IV.MRGE.HHE. ML:1.7 6.345E-5 0.78 AML other m 2019-11-21T21:55:19.61
GU.REMY.HHE. ML:1.8 8.0E-5 0.7 AML other m 2019-11-21T21:55:20.00
GU.REMY.HHN. ML:1.7 5.825E-5 1.02 AML other m 2019-11-21T21:55:20.45
GU.GBOS.HHE. ML:1.8 5.325E-5 1.54 AML other m 2019-11-21T21:55:22.96
GU.SATI.HHE. ML:1.6 4.2E-5 0.42 AML other m 2019-11-21T21:55:22.32
GU.GBOS.HHN. ML:1.8 5.6E-5 0.48 AML other m 2019-11-21T21:55:23.71
GU.SATI.HHN. ML:1.6 4.015E-5 1.62 AML other m 2019-11-21T21:55:25.95
IV.IMI.HHE. ML:2 6.38E-5 1.56 AML other m 2019-11-21T21:55:25.20
RD.ORIF.BHN. ML:1.6 3.2985E-5 0.24 AML other m 2019-11-21T21:55:29.02
RD.ORIF.BHE. ML:1.8 4.665E-5 0.96 AML other m 2019-11-21T21:55:32.20
GU.CANO.HHN. ML:2.2 0.0001305 0.28 AML other m 2019-11-21T21:55:33.22
IV.IMI.HHN. ML:2.2 9.595E-5 0.42 AML other m 2019-11-21T21:55:35.30
GU.CANO.HHE. ML:2.4 0.000181 0.94 AML other m 2019-11-21T21:55:36.08
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download