Earthquake with magnitude of ML 1.2 on date 21-10-2019 and time 05:36:33 (Italy) in region 4 km S San Giorio di Susa (TO)

A magnitude ML 1.2 earthquake occured in region: 4 km S San Giorio di Susa (TO), on

  • 21-10-2019 03:36:33 (UTC)
  • 21-10-2019 05:36:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.09, 7.18 at 14 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
San Giorio di Susa TO 4 1024 1024
Villar Focchiardo TO 4 2042 3066
San Didero TO 5 551 3617
Bussoleno TO 6 6094 9711
Bruzolo TO 6 1524 11235
Borgone Susa TO 6 2229 13464
Mattie TO 6 687 14151
Chianocco TO 6 1675 15826
Sant'Antonino di Susa TO 7 4306 20132
Vaie TO 8 1458 21590
Meana di Susa TO 9 826 22416
Coazze TO 10 3287 25703
Condove TO 11 4638 30341
Roure TO 11 848 31189
Mompantero TO 11 659 31848
Chiusa di San Michele TO 11 1647 33495
Susa TO 12 6466 39961
Fenestrelle TO 12 544 40505
Caprie TO 12 2086 42591
Valgioie TO 13 951 43542
Gravere TO 13 692 44234
Usseaux TO 13 186 44420
Sant'Ambrogio di Torino TO 14 4755 49175
Giaglione TO 14 631 49806
Giaveno TO 15 16455 66261
Venaus TO 15 907 67168
Perosa Argentina TO 15 3285 70453
Pomaretto TO 15 1009 71462
Chiomonte TO 16 916 72378
Usseglio TO 16 209 72587
Villar Dora TO 16 2932 75519
Inverso Pinasca TO 16 730 76249
Rubiana TO 17 2400 78649
Novalesa TO 17 534 79183
Avigliana TO 17 12516 91699
Almese TO 17 6401 98100
Pinasca TO 17 3051 101151
Lemie TO 18 179 101330
Massello TO 18 51 101381
Perrero TO 18 659 102040
Trana TO 20 3877 105917
Cumiana TO 20 7826 113743
Salza di Pinerolo TO 20 75 113818
Exilles TO 20 273 114091
Villar Perosa TO 20 4092 118183
Moncenisio TO 20 36 118219

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Torino (890529 inhabitants)
41 Km W of Moncalieri (57294 inhabitants)
83 Km NW of Cuneo (56081 inhabitants)
83 Km W of Asti (76202 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 1.2 2019-10-21
03:36:33
45.09 7.18 14 2019-10-21
03:42:21
Sala Sismica INGV-Roma 73367201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-21 03:36:33 ± 0.15
Latitude 45.09 ± 0.01
Longitude 7.18 ± 0.02
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73367201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 906
Semi-minor axis of confidence ellipse (meter) 845
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.86245
Number of stations at which the event was observed 10
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 8
Type of magnitude ML
Reference to an origin 73367201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-21 03:42:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PZZ.HHZ. 2019-10-21T03:36:53.99 0.6 undecidable manual S 185 0.5882 93 0.19 44
GU.CIRO.HHZ. 2019-10-21T03:36:52.95 0.1 undecidable manual S 28 0.5756 93 -0.48 83
GU.ROTM.HHZ. 2019-10-21T03:36:49.70 0.1 undecidable manual P 106 0.8624 92 -0.37 79
IV.MONC.HHZ. 2019-10-21T03:36:49.61 3.0 undecidable manual S -0.36 0
IV.MRGE.HHZ. 2019-10-21T03:36:47.43 0.1 undecidable manual P 353 0.6808 92 0.45 81
MN.BNI.HHZ. 2019-10-21T03:36:46.66 0.3 undecidable manual S 264 0.3588 95 -0.35 67
GU.LSD.HHZ. 2019-10-21T03:36:46.80 0.1 undecidable manual S 355 0.3678 95 -0.47 86
GU.PZZ.HHZ. 2019-10-21T03:36:45.60 0.1 undecidable manual P 185 0.5882 93 0.21 87
GU.RRL.HHZ. 2019-10-21T03:36:45.75 0.1 undecidable manual S 238 0.3265 96 -0.3 90
GU.CIRO.HHZ. 2019-10-21T03:36:45.44 0.1 undecidable manual P 28 0.5756 93 0.27 86
GU.BHB.HHZ. 2019-10-21T03:36:43.55 0.3 undecidable manual S 168 0.2644 98 -0.68 61
GU.RRL.HHZ. 2019-10-21T03:36:41.15 0.1 undecidable manual P 238 0.3265 96 0.24 91
GU.LSD.HHZ. 2019-10-21T03:36:41.87 0.1 undecidable manual P 355 0.3678 95 0.25 90
MN.BNI.HHZ. 2019-10-21T03:36:41.89 0.1 undecidable manual P 264 0.3588 95 0.42 87
GU.BHB.HHZ. 2019-10-21T03:36:39.77 0.1 undecidable manual P 168 0.2644 98 -0.09 95
GU.RSP.HNZ. 2019-10-21T03:36:39.26 0.1 undecidable manual S 47 0.08 138 0.01 100
GU.RSP.HNZ. 2019-10-21T03:36:37.38 0.1 undecidable manual P 47 0.08 138 0.39 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:1.3 9.295E-5 0.38 AML other m 2019-10-21T03:36:43.65
GU.BHB.HHE. ML:1.2 7.925E-5 0.86 AML other m 2019-10-21T03:36:44.22
GU.LSD.HHN. ML:1.3 6.115E-5 1.16 AML other m 2019-10-21T03:36:46.27
GU.LSD.HHE. ML:1.4 7.5E-5 1.22 AML other m 2019-10-21T03:36:47.24
GU.CIRO.HHE. ML:1 1.7648455E-5 0.12 AML other m 2019-10-21T03:36:53.17
GU.CIRO.HHN. ML:0.7 1.16578668E-5 0.12 AML other m 2019-10-21T03:36:53.11
GU.PZZ.HHE. ML:1.4 5.2174425E-5 2.2992 AML other m 2019-10-21T03:36:53.42
GU.PZZ.HHN. ML:1.2 2.8946765E-5 0.1792 AML other m 2019-10-21T03:36:54.39
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