Earthquake with magnitude of ML 0.8 on date 08-04-2020 and time 09:38:44 (Italy) in region 1 km W Vallo Torinese (TO)

A magnitude ML 0.8 earthquake occured in region: 1 km W Vallo Torinese (TO), on

  • 08-04-2020 07:38:44 (UTC)
  • 08-04-2020 09:38:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.22, 7.49 at 10 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
Vallo Torinese TO 1 774 774
Varisella TO 1 810 1584
Fiano TO 2 2695 4279
Cafasse TO 3 3451 7730
La Cassa TO 5 1788 9518
Germagnano TO 5 1201 10719
Villanova Canavese TO 5 1186 11905
Mathi TO 5 3921 15826
Lanzo Torinese TO 6 5086 20912
Balangero TO 6 3156 24068
Grosso TO 6 1018 25086
Robassomero TO 7 3057 28143
Nole TO 7 6892 35035
Givoletto TO 7 3914 38949
Traves TO 7 518 39467
Val della Torre TO 8 3869 43336
Ciriè TO 9 18909 62245
Coassolo Torinese TO 9 1547 63792
Viù TO 9 1051 64843
San Gillio TO 9 3174 68017
San Carlo Canavese TO 10 4031 72048
Monastero di Lanzo TO 10 350 72398
Pessinetto TO 11 606 73004
Corio TO 11 3277 76281
San Maurizio Canavese TO 11 10237 86518
Mezzenile TO 11 786 87304
Druento TO 12 8622 95926
Vauda Canavese TO 12 1464 97390
Rocca Canavese TO 12 1708 99098
Rubiana TO 13 2400 101498
San Francesco al Campo TO 13 5005 106503
Caselette TO 13 3060 109563
Ceres TO 13 1065 110628
Caselle Torinese TO 13 19136 129764
Barbania TO 13 1607 131371
Almese TO 14 6401 137772
Levone TO 14 442 138214
Pianezza TO 14 15152 153366
Alpignano TO 14 17008 170374
Villar Dora TO 14 2932 173306
Venaria Reale TO 15 34193 207499
Borgaro Torinese TO 15 13592 221091
Front TO 15 1677 222768
Lemie TO 16 179 222947
Forno Canavese TO 16 3446 226393
Rivara TO 16 2659 229052
Cantoira TO 16 564 229616
Rosta TO 17 4903 234519
Pratiglione TO 17 535 235054
Rivoli TO 17 48791 283845
Collegno TO 17 49905 333750
Caprie TO 17 2086 335836
Sant'Ambrogio di Torino TO 17 4755 340591
Busano TO 18 1687 342278
Avigliana TO 18 12516 354794
Buttigliera Alta TO 18 6419 361213
Rivarossa TO 18 1610 362823
Leini TO 18 16356 379179
Ala di Stura TO 18 469 379648
Condove TO 18 4638 384286
Pertusio TO 19 778 385064
Chiusa di San Michele TO 19 1647 386711
Canischio TO 19 277 386988
Prascorsano TO 19 745 387733
Grugliasco TO 19 37966 425699
Lombardore TO 19 1742 427441
Chialamberto TO 20 345 427786
Reano TO 20 1818 429604
Villarbasse TO 20 3509 433113
Favria TO 20 5196 438309
San Ponso TO 20 267 438576

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Torino (890529 inhabitants)
29 Km NW of Moncalieri (57294 inhabitants)
66 Km NW of Asti (76202 inhabitants)
92 Km W of Novara (104380 inhabitants)
92 Km N of Cuneo (56081 inhabitants)
95 Km W of Alessandria (93943 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 0.8 2020-04-08
07:38:44
45.22 7.49 10 2020-04-08
07:56:29
Sala Sismica INGV-Roma 78008861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-08 07:38:44 ± 0.21
Latitude 45.22 ± 0.01
Longitude 7.49 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78008861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3380
Semi-minor axis of confidence ellipse (meter) 1020
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 3380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.76352
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 78008861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-08 07:56:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LRP.EHZ. 2020-04-08T07:40:29.57 3.0 positive manual Pg 21.540001 0
IV.ROSPO.HHZ. 2020-04-08T07:40:19.65 3.0 undecidable manual Pn 7.42 0
OX.MPRI.HHZ. 2020-04-08T07:40:19.51 3.0 undecidable manual Sn 3.33 0
IV.SFI.EHZ. 2020-04-08T07:40:17.98 3.0 undecidable manual Sn 2.78 0
IV.LAV9.HHZ. 2020-04-08T07:40:15.24 3.0 positive manual Pg 13.22 0
IV.VAGA.HHZ. 2020-04-08T07:40:13.45 3.0 negative manual Pn -1.4 0
IV.FIR.HHZ. 2020-04-08T07:40:09.11 3.0 undecidable manual Sn -0.54 0
OX.MPRI.HHZ. 2020-04-08T07:39:49.68 3.0 negative manual Pg 15.48 0
IV.PIEI.HHZ. 2020-04-08T07:39:42.95 3.0 undecidable manual Pn 0.78 0
IV.BRSN.EHZ. 2020-04-08T07:39:37.75 3.0 undecidable manual Pn 5.29 0
IV.FIR.HHZ. 2020-04-08T07:39:31.30 3.0 positive manual Pn 0.77 0
GU.POPM.HHZ. 2020-04-08T07:39:26.86 3.0 negative manual Pn 2.43 0
IV.SARZ.HHZ. 2020-04-08T07:39:04.46 3.0 negative manual Pg -0.15 0
IV.EUCT.HNZ. 2020-04-08T07:39:00.11 3.0 negative manual P -1.46 0
GU.BHB.HHE. 2020-04-08T07:38:58.64 0.6 undecidable manual S 203 0.42 50 -0.82 41
GU.PZZ.HHE. 2020-04-08T07:38:58.68 0.3 undecidable manual P 201 0.7635 50 -0.26 69
GU.CIRO.HHZ. 2020-04-08T07:38:57.58 0.3 undecidable manual S 8 0.3831 50 -0.78 63
IV.MRGE.HHZ. 2020-04-08T07:38:56.66 0.1 undecidable manual P 331 0.6259 50 0.08 98
GU.TRAV.HHZ. 2020-04-08T07:38:56.76 0.3 undecidable manual S 31 0.3399 50 -0.33 74
GU.RRL.HHE. 2020-04-08T07:38:56.21 0.6 undecidable manual P 239 0.581 50 0.4 46
GU.BHB.HHE. 2020-04-08T07:38:53.25 0.1 undecidable manual P 203 0.42 50 0.19 100
GU.CIRO.HHZ. 2020-04-08T07:38:52.67 0.1 undecidable manual P 8 0.3831 50 0.24 100
GU.TRAV.HHZ. 2020-04-08T07:38:52.30 0.1 undecidable manual P 31 0.3399 50 0.61 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIR.HHE. ML:3.4 0.0002575 1.12 AML other m 2020-04-08T07:39:37.97
GU.TRAV.HHE. ML:1.1 4.39E-5 0.26 AML other m 2020-04-08T07:38:57.34
GU.POPM.HHN. ML:3 0.00013 1.64 AML other m 2020-04-08T07:39:31.99
GU.POPM.HHE. ML:2.8 9.445E-5 0.16 AML other m 2020-04-08T07:39:32.77
IV.SFI.EHN. ML:2.5 2.195E-5 0.42 AML other m 2020-04-08T07:39:36.40
IV.FIR.HHN. ML:3.5 0.0002815 0.08 AML other m 2020-04-08T07:39:40.56
IV.SARZ.HHE. ML:2.4 0.000175 0.08 AML other m 2020-04-08T07:39:43.13
IV.SARZ.HHN. ML:2.3 0.000163 0.46 AML other m 2020-04-08T07:39:43.38
IV.SFI.EHE. ML:2.3 1.7105E-5 0.42 AML other m 2020-04-08T07:39:59.35
GU.CIRO.HHE. ML:0.5 1.22839455E-5 1.8752 AML other m 2020-04-08T07:38:58.20
GU.CIRO.HHN. ML:0.5 8.8529365E-6 1.7536 AML other m 2020-04-08T07:38:58.82
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