Earthquake with magnitude of ML 0.3 on date 07-09-2021 and time 19:12:29 (UTC) in region 2 km SW Meana di Susa (TO)

A magnitude ML 0.3 earthquake occured in region: 2 km SW Meana di Susa (TO), on

  • 07-09-2021 19:12:29 (UTC)
  • 07-09-2021 21:12:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.108, 7.046 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
Meana di Susa TO 2 826 826
Gravere TO 3 692 1518
Susa TO 3 6466 7984
Mompantero TO 4 659 8643
Giaglione TO 4 631 9274
Chiomonte TO 5 916 10190
Mattie TO 6 687 10877
Venaus TO 6 907 11784
Usseaux TO 7 186 11970
Fenestrelle TO 8 544 12514
Bussoleno TO 9 6094 18608
Exilles TO 9 273 18881
Novalesa TO 9 534 19415
San Giorio di Susa TO 11 1024 20439
Chianocco TO 11 1675 22114
Moncenisio TO 12 36 22150
Bruzolo TO 12 1524 23674
Pragelato TO 13 776 24450
Salbertrand TO 13 596 25046
Roure TO 14 848 25894
San Didero TO 14 551 26445
Villar Focchiardo TO 14 2042 28487
Borgone Susa TO 16 2229 30716
Massello TO 17 51 30767
Sauze d'Oulx TO 17 1109 31876
Sant'Antonino di Susa TO 18 4306 36182
Salza di Pinerolo TO 19 75 36257
Oulx TO 19 3307 39564
Vaie TO 19 1458 41022
Usseglio TO 20 209 41231
Perrero TO 20 659 41890
Pomaretto TO 20 1009 42899

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km W of Torino (890529 inhabitants)
52 Km W of Moncalieri (57294 inhabitants)
89 Km NW of Cuneo (56081 inhabitants)
94 Km W of Asti (76202 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
ML 0.3 2021-09-07
19:12:29
45.1078 7.0458 12 2021-09-07
19:17:03
Sala Sismica INGV-Roma 95169011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-07 19:12:29 ± 0.17
Latitude 45.1078 ± 0.0072
Longitude 7.0458 ± 0.0153
Depth (km) 12 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95169011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1249
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 1250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.16008
Epicentral distance of station farthest from the epicenter (degree) 0.6619
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95169011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-07 19:17:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MRGE.HHZ. 2021-09-07T19:12:51.52 0.6 undecidable manual S 1 0.6619 91 -0.25 43
GU.PZZ.HHE. 2021-09-07T19:12:49.22 0.6 undecidable manual S 175 0.6034 91 -0.82 35
GU.CIRO.HHZ. 2021-09-07T19:12:49.79 0.6 undecidable manual S 36 0.6151 91 -0.6 39
IV.MRGE.HHZ. 2021-09-07T19:12:43.43 1.0 undecidable manual P 1 0.6619 91 0.98 17
GU.LSD.HHZ. 2021-09-07T19:12:42.01 0.6 undecidable manual S 10 0.357 92 -0.74 39
GU.CIRO.HHZ. 2021-09-07T19:12:42.25 0.1 negative manual P 36 0.6151 91 0.6 82
GU.PZZ.HHE. 2021-09-07T19:12:41.74 0.1 undecidable manual P 175 0.6034 91 0.29 89
GU.BHB.HHZ. 2021-09-07T19:12:41.57 0.3 undecidable manual S 150 0.313 92 0.14 73
GU.RRL.HHZ. 2021-09-07T19:12:39.03 0.6 undecidable manual S 224 0.2599 93 -0.84 37
MN.BNI.HHZ. 2021-09-07T19:12:39.53 0.6 undecidable manual S 258 0.2653 93 -0.51 43
GU.LSD.HHZ. 2021-09-07T19:12:37.58 0.6 undecidable manual P 10 0.357 92 0.34 46
GU.BHB.HHZ. 2021-09-07T19:12:36.58 0.1 positive manual P 150 0.313 92 0.1 98
GU.RSP.HNZ. 2021-09-07T19:12:36.26 0.6 undecidable manual S 75 0.1601 99 -0.66 42
MN.BNI.HHZ. 2021-09-07T19:12:36.27 1.0 undecidable manual P 258 0.2653 93 0.6 22
GU.RRL.HHZ. 2021-09-07T19:12:35.91 0.3 negative manual P 224 0.2599 93 0.33 71
GU.RSP.HNZ. 2021-09-07T19:12:33.99 0.1 undecidable manual P 75 0.1601 99 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.BNI.HHE. ML:0.3 8.87E-6 0.66 AML other m 2021-09-07T19:12:39.65
MN.BNI.HHN. ML:0.5 1.305E-5 0.22 AML other m 2021-09-07T19:12:39.78
GU.LSD.HHE. ML:1.1 3.995E-5 0.3 AML other m 2021-09-07T19:12:42.16
GU.LSD.HHN. ML:0.9 3.025E-5 0.3 AML other m 2021-09-07T19:12:42.36
GU.CIRO.HHE. ML:0.8 8.87E-6 0.96 AML other m 2021-09-07T19:12:50.32
GU.CIRO.HHN. ML:0.5 7.45E-6 0.42 AML other m 2021-09-07T19:12:54.33
GU.RRL.HHE. ML:0 5.53474825E-6 0.192 AML other m 2021-09-07T19:12:40.74
GU.RRL.HHN. ML:0.3 9.30690315E-6 0.32 AML other m 2021-09-07T19:12:39.48
GU.BHB.HHE. ML:0.1 7.002152E-6 0.5632 AML other m 2021-09-07T19:12:41.89
GU.BHB.HHN. ML:0.1 5.787827E-6 0.1408 AML other m 2021-09-07T19:12:41.91
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