Earthquake with magnitude of ML 1.2 on date 06-12-2021 and time 05:12:49 (Italy) in region 3 km S Meana di Susa (TO)

A magnitude ML 1.2 earthquake occured in region: 3 km S Meana di Susa (TO), on

  • 06-12-2021 04:12:49 (UTC)
  • 06-12-2021 05:12:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.098, 7.07 at 13 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 3 826 826
Mattie TO 4 687 1513
Susa TO 5 6466 7979
Gravere TO 5 692 8671
Mompantero TO 5 659 9330
Usseaux TO 6 186 9516
Giaglione TO 6 631 10147
Fenestrelle TO 7 544 10691
Chiomonte TO 7 916 11607
Bussoleno TO 8 6094 17701
Venaus TO 8 907 18608
San Giorio di Susa TO 9 1024 19632
Chianocco TO 10 1675 21307
Exilles TO 11 273 21580
Novalesa TO 11 534 22114
Bruzolo TO 11 1524 23638
Roure TO 12 848 24486
San Didero TO 12 551 25037
Villar Focchiardo TO 13 2042 27079
Pragelato TO 13 776 27855
Borgone Susa TO 14 2229 30084
Moncenisio TO 14 36 30120
Salbertrand TO 15 596 30716
Massello TO 15 51 30767
Sant'Antonino di Susa TO 16 4306 35073
Vaie TO 17 1458 36531
Salza di Pinerolo TO 17 75 36606
Pomaretto TO 18 1009 37615
Perrero TO 18 659 38274
Sauze d'Oulx TO 18 1109 39383
Perosa Argentina TO 18 3285 42668
Coazze TO 18 3287 45955
Usseglio TO 19 209 46164
Condove TO 19 4638 50802
Oulx TO 20 3307 54109

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km W of Torino (890529 inhabitants)
50 Km W of Moncalieri (57294 inhabitants)
87 Km NW of Cuneo (56081 inhabitants)
92 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2021-12-06
04:12:49
45.098 7.07 13 2021-12-06
04:23:37
Sala Sismica INGV-Roma 98200801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-06 04:12:49 ± 0.15
Latitude 45.0980 ± 0.0135
Longitude 7.0700 ± 0.0191
Depth (km) 13 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98200801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1720
Semi-minor axis of confidence ellipse (meter) 1014
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 136
Circular confidence region, given by single value of horizontal uncertainty (meter) 1720
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.14659
Epicentral distance of station farthest from the epicenter (degree) 0.67089
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 98200801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-06 04:23:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2021-12-06T04:13:10.14 0.3 undecidable manual S 49 0.6304 92 -0.37 65
GU.CIRO.HHZ. 2021-12-06T04:13:09.29 0.3 undecidable manual S 35 0.6133 92 -0.72 57
GU.PZZ.HHZ. 2021-12-06T04:13:08.63 0.3 undecidable manual S 177 0.5918 92 -0.75 59
GU.TRAV.HHZ. 2021-12-06T04:13:02.17 0.1 undecidable manual P 49 0.6304 92 0.59 81
IV.MRGE.HHZ. 2021-12-06T04:13:02.84 0.3 undecidable manual P 359 0.6709 92 0.56 62
GU.LSD.HHZ. 2021-12-06T04:13:01.67 0.3 undecidable manual S 7 0.3642 94 -0.97 53
GU.PZZ.HHZ. 2021-12-06T04:13:01.32 0.1 undecidable manual P 177 0.5918 92 0.39 86
GU.CIRO.HHZ. 2021-12-06T04:13:01.79 0.1 undecidable manual P 35 0.6133 92 0.5 85
GU.BHB.HHZ. 2021-12-06T04:13:00.22 0.3 undecidable manual S 152 0.2959 95 -0.4 70
GU.RRL.HHZ. 2021-12-06T04:12:59.32 0.3 undecidable manual S 228 0.2653 96 -0.4 69
MN.BNI.HHZ. 2021-12-06T04:12:59.90 0.3 undecidable manual S 261 0.2806 95 -0.26 70
GU.LSD.HHZ. 2021-12-06T04:12:57.21 0.1 undecidable manual P 7 0.3642 94 0.18 96
GU.BHB.HHZ. 2021-12-06T04:12:56.18 0.1 undecidable manual P 152 0.2959 95 0.31 93
GU.RRL.HHZ. 2021-12-06T04:12:55.56 0.1 undecidable manual P 228 0.2653 96 0.21 97
GU.RSP.HNZ. 2021-12-06T04:12:55.84 0.3 undecidable manual S 70 0.1466 110 -0.42 71
MN.BNI.HHZ. 2021-12-06T04:12:55.66 0.1 undecidable manual P 261 0.2806 95 0.06 100
GU.RSP.HNZ. 2021-12-06T04:12:53.65 0.1 undecidable manual P 70 0.1466 110 0.3 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.LSD.HHE. ML:0 0.00010505 0.3 AML other m 2021-12-06T04:13:01.80
GU.LSD.HHN. ML:0 4.6893285E-5 0.0992 AML other m 2021-12-06T04:13:02.14
GU.PZZ.HHE. ML:1.3 3.573508E-5 0.2784 AML other m 2021-12-06T04:13:09.94
GU.PZZ.HHN. ML:1.2 3.1514475E-5 0.1792 AML other m 2021-12-06T04:13:09.66
GU.CIRO.HHE. ML:0.9 1.64314115E-5 0.2208 AML other m 2021-12-06T04:13:09.93
GU.TRAV.HHE. ML:1 1.36869145E-5 0.1792 AML other m 2021-12-06T04:13:10.46
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