Earthquake with magnitude of ML 1.2 on date 03-11-2021 and time 09:54:20 (Italy) in region 4 km SE Oncino (CN)

A magnitude ML 1.2 earthquake occured in region: 4 km SE Oncino (CN), on

  • 03-11-2021 08:54:20 (UTC)
  • 03-11-2021 09:54:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.655, 7.237 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
Oncino CN 4 76 76
Paesana CN 5 2784 2860
Ostana CN 6 83 2943
Sanfront CN 7 2395 5338
Crissolo CN 8 168 5506
Rifreddo CN 9 1078 6584
Sampeyre CN 9 1022 7606
Gambasca CN 9 371 7977
Frassino CN 10 265 8242
Barge CN 11 7774 16016
Martiniana Po CN 11 734 16750
Envie CN 11 2074 18824
Revello CN 12 4262 23086
Melle CN 12 292 23378
Bagnolo Piemonte CN 13 6024 29402
Brossasco CN 14 1084 30486
Isasca CN 14 76 30562
Brondello CN 15 290 30852
Casteldelfino CN 15 157 31009
Valmala CN 15 52 31061
RorĂ  TO 16 257 31318
Pagno CN 16 585 31903
Venasca CN 16 1437 33340
Castellar CN 16 295 33635
Bibiana TO 17 3442 37077
Lusernetta TO 17 506 37583
Pontechianale CN 17 179 37762
Elva CN 17 97 37859
Macra CN 18 59 37918
Campiglione Fenile TO 18 1390 39308
Luserna San Giovanni TO 18 7395 46703
Cavour TO 18 5545 52248
Villar Pellice TO 18 1076 53324
San Damiano Macra CN 19 430 53754
Torre Pellice TO 19 4551 58305
Stroppo CN 19 103 58408
Bellino CN 19 109 58517
Celle di Macra CN 20 100 58617
Bobbio Pellice TO 20 563 59180
Bricherasio TO 20 4616 63796
Piasco CN 20 2774 66570
Rossana CN 20 908 67478
Cartignano CN 20 190 67668

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of Cuneo (56081 inhabitants)
52 Km SW of Moncalieri (57294 inhabitants)
58 Km SW of Torino (890529 inhabitants)
81 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 2021-11-03
08:54:20
44.6547 7.2368 12 2021-11-03
08:59:39
Sala Sismica INGV-Roma 97188151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-03 08:54:20 ± 0.11
Latitude 44.6547 ± 0.0063
Longitude 7.2368 ± 0.0177
Depth (km) 12 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97188151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1281
Semi-minor axis of confidence ellipse (meter) 647
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
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) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.17087
Epicentral distance of station farthest from the epicenter (degree) 0.80759
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 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 97188151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-03 08:59:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.LSD.HHZ. 2021-11-03T08:54:46.48 0.3 undecidable manual S 355 0.8076 90 -0.56 60
GU.GBOS.HHZ. 2021-11-03T08:54:40.33 0.6 undecidable manual S 134 0.5963 90 -0.44 43
MN.BNI.HHE. 2021-11-03T08:54:39.03 0.6 undecidable manual S 315 0.5612 91 -0.7 39
GU.RSP.HHZ. 2021-11-03T08:54:37.45 0.3 undecidable manual S 2 0.4937 91 -0.29 68
GU.RORO.HHZ. 2021-11-03T08:54:36.07 0.1 undecidable manual P 132 0.8031 90 0.26 84
GU.LSD.HHZ. 2021-11-03T08:54:36.89 0.3 undecidable manual P 355 0.8076 90 1 48
GU.ENR.HHZ. 2021-11-03T08:54:35.72 0.3 undecidable manual S 163 0.4443 91 -0.55 63
GU.RRL.HHZ. 2021-11-03T08:54:34.96 0.6 undecidable manual S 310 0.4137 91 -0.41 44
MN.BNI.HHE. 2021-11-03T08:54:32.08 0.1 undecidable manual P 315 0.5612 91 0.41 86
GU.GBOS.HHZ. 2021-11-03T08:54:32.51 0.1 undecidable manual P 134 0.5963 90 0.24 89
GU.RSP.HHZ. 2021-11-03T08:54:30.69 0.3 undecidable manual P 2 0.4937 91 0.17 69
GU.RRL.HHZ. 2021-11-03T08:54:29.42 0.1 positive manual P 310 0.4137 91 0.27 92
GU.ENR.HHZ. 2021-11-03T08:54:29.53 0.1 undecidable manual P 163 0.4443 91 -0.14 93
GU.PZZ.HHZ. 2021-11-03T08:54:28.20 0.1 undecidable manual S 210 0.1709 95 0.01 100
GU.BHB.HHZ. 2021-11-03T08:54:28.09 0.3 undecidable manual S 6 0.1817 94 -0.41 71
GU.PZZ.HHZ. 2021-11-03T08:54:25.09 0.3 undecidable manual P 210 0.1709 95 0.09 76
GU.BHB.HHZ. 2021-11-03T08:54:25.42 0.3 undecidable manual P 6 0.1817 94 0.24 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:1 6.805E-5 0.84 AML other m 2021-11-03T08:54:28.28
GU.BHB.HHE. ML:1 6.425E-5 1.16 AML other m 2021-11-03T08:54:28.30
GU.PZZ.HHN. ML:1.2 0.000118 1.18 AML other m 2021-11-03T08:54:28.04
GU.PZZ.HHE. ML:1.2 0.00011535 0.98 AML other m 2021-11-03T08:54:29.05
GU.LSD.HHN. ML:1.3 2.475E-5 1.46 AML other m 2021-11-03T08:54:48.06
GU.LSD.HHE. ML:1.2 2.19E-5 0.9 AML other m 2021-11-03T08:54:48.31
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