Earthquake with magnitude of ML 1.4 on date 04-12-2021 and time 01:51:40 (UTC) in region 1 km W Villanova Solaro (CN)

A magnitude ML 1.4 earthquake occured in region: 1 km W Villanova Solaro (CN), on

  • 04-12-2021 01:51:40 (UTC)
  • 04-12-2021 02:51:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.731, 7.563 at 29 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
Villanova Solaro CN 1 772 772
Torre San Giorgio CN 3 730 1502
Murello CN 4 966 2468
Ruffia CN 4 367 2835
Moretta CN 4 4136 6971
Scarnafigi CN 5 2162 9133
Monasterolo di Savigliano CN 7 1371 10504
Cardè CN 7 1122 11626
Villafranca Piemonte TO 7 4729 16355
Cavallerleone CN 8 644 16999
Faule CN 9 486 17485
Polonghera CN 9 1160 18645
Racconigi CN 10 10038 28683
Cavallermaggiore CN 10 5533 34216
Saluzzo CN 11 16960 51176
Casalgrasso CN 11 1480 52656
Pancalieri TO 11 2038 54694
Lagnasco CN 12 1453 56147
Savigliano CN 12 21441 77588
Vigone TO 14 5182 82770
Lombriasco TO 14 1050 83820
Manta CN 14 3787 87607
Virle Piemonte TO 15 1206 88813
Caramagna Piemonte CN 15 3034 91847
Marene CN 15 3175 95022
Cercenasco TO 15 1803 96825
Castellar CN 16 295 97120
Verzuolo CN 16 6459 103579
Envie CN 16 2074 105653
Cavour TO 16 5545 111198
Osasio TO 16 936 112134
Revello CN 16 4262 116396
Pagno CN 17 585 116981
Genola CN 18 2625 119606
Carmagnola TO 18 29079 148685
Sommariva del Bosco CN 18 6361 155046
Scalenghe TO 18 3339 158385
Vottignasco CN 18 537 158922
Macello TO 19 1229 160151
Castagnole Piemonte TO 19 2245 162396
Barge CN 19 7774 170170
Garzigliana TO 19 572 170742
Rifreddo CN 19 1078 171820
Brondello CN 19 290 172110
Martiniana Po CN 19 734 172844
Costigliole Saluzzo CN 19 3375 176219
Sanfrè CN 19 3040 179259
Bagnolo Piemonte CN 20 6024 185283
Piasco CN 20 2774 188057
Buriasco TO 20 1410 189467

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Moncalieri (57294 inhabitants)
37 Km N of Cuneo (56081 inhabitants)
39 Km S of Torino (890529 inhabitants)
54 Km W of Asti (76202 inhabitants)
86 Km W of Alessandria (93943 inhabitants)
87 Km NW of Savona (61345 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 1.4 2021-12-04
01:51:40
44.7307 7.5627 29 2021-12-04
02:00:53
Sala Sismica INGV-Roma 98108731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-04 01:51:40 ± 0.24
Latitude 44.7307 ± 0.0099
Longitude 7.5627 ± 0.0127
Depth (km) 29 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98108731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1035
Semi-minor axis of confidence ellipse (meter) 858
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.71496
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 98108731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-04 02:00:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2021-12-04T01:53:37.63 3.0 undecidable manual Sg 20.200001 0
ST.PANI.EHZ. 2021-12-04T01:53:13.28 3.0 undecidable manual Sg 13.97 0
SI.MOSI.HHZ. 2021-12-04T01:53:00.99 3.0 undecidable manual Sn 5.56 0
IV.PP3.EHZ. 2021-12-04T01:52:48.45 3.0 positive manual Pn 1.82 0
IV.AGLI.HHZ. 2021-12-04T01:52:37.83 3.0 negative manual Pn 1.91 0
IV.ZEN8.EHZ. 2021-12-04T01:52:27.28 3.0 undecidable manual Pg 10.4 0
GU.ENR.HHZ. 2021-12-04T01:51:58.45 0.6 undecidable manual S 192 0.5117 112 -0.43 45
GU.RSP.HHZ. 2021-12-04T01:51:57.34 1.0 undecidable manual S 333 0.4676 114 -0.34 24
IV.MONC.HHZ. 2021-12-04T01:51:56.53 0.6 undecidable manual S 37 0.429 116 -0.13 51
GU.PZZ.HHZ. 2021-12-04T01:51:55.47 1.0 undecidable manual S 235 0.3885 119 -0.12 25
GU.RORO.HHE. 2021-12-04T01:51:54.95 1.0 undecidable manual P 150 0.715 105 0.61 21
GU.PCP.HHZ. 2021-12-04T01:51:54.04 3.0 positive manual Pn 0.01 0
GU.CANO.HHE. 2021-12-04T01:51:54.64 0.6 undecidable manual P 137 0.7105 105 0.38 44
IV.QLNO.HHE. 2021-12-04T01:51:53.85 0.6 undecidable manual P 126 0.6898 106 -0.08 48
GU.TRAV.HHZ. 2021-12-04T01:51:53.87 1.0 undecidable manual Pn -0.33 0.44
GU.RRL.HHZ. 2021-12-04T01:51:52.61 1.0 undecidable manual Pg 1.42 0.21
GU.BHB.HHZ. 2021-12-04T01:51:52.11 0.6 undecidable manual S 296 0.2374 134 0.16 51
GU.GBOS.HHZ. 2021-12-04T01:51:51.53 0.6 positive manual P 158 0.527 111 0.25 47
GU.ROTM.HHZ. 2021-12-04T01:51:51.88 0.6 negative manual Pn 0.01 0.87
GU.ENR.HHZ. 2021-12-04T01:51:51.00 0.1 negative manual P 192 0.5117 112 -0.03 99
GU.STV.HHZ. 2021-12-04T01:51:50.85 0.1 negative manual P 199 0.5135 112 -0.22 95
GU.RSP.HHZ. 2021-12-04T01:51:50.30 1.0 undecidable manual P 333 0.4676 114 -0.04 25
GU.PZZ.HHZ. 2021-12-04T01:51:49.20 0.3 negative manual P 235 0.3885 119 0.06 76
IV.MONC.HHZ. 2021-12-04T01:51:49.73 0.3 positive manual P 37 0.429 116 -0.02 76
GU.BHB.HHZ. 2021-12-04T01:51:47.30 0.1 negative manual P 296 0.2374 134 0.27 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:1.6 0.00015923605 0.12 AML other m 2021-12-04T01:51:52.37
GU.BHB.HHE. ML:1.7 0.00019491345 0.2208 AML other m 2021-12-04T01:51:52.44
GU.BHB.HNN. ML:1.7 0.0001822305 0.1312 AML other m 2021-12-04T01:51:52.37
GU.BHB.HNE. ML:1.7 0.00017703905 0.2096 AML other m 2021-12-04T01:51:52.34
GU.PZZ.HHN. ML:1.2 4.3865575E-5 0.32 AML other m 2021-12-04T01:51:58.27
GU.ENR.HHE. ML:1.7 0.00010133855 0.1984 AML other m 2021-12-04T01:51:58.65
GU.ENR.HHN. ML:1.6 7.3378345E-5 0.0608 AML other m 2021-12-04T01:51:51.26
GU.PZZ.HHE. ML:1.2 3.841172E-5 0.28 AML other m 2021-12-04T01:52:00.69
GU.TRAV.HHE. ML:1.2 1.952802E-5 0.2192 AML other m 2021-12-04T01:52:06.20
GU.TRAV.HHN. ML:1.1 1.5974435E-5 0.1008 AML other m 2021-12-04T01:52:04.32
IV.MONC.HHE. ML:1.6 8.6482135E-5 0.16 AML other m 2021-12-04T01:51:57.46
IV.MONC.HHN. ML:1.5 7.628081E-5 0.2 AML other m 2021-12-04T01:51:57.85
GU.RSP.HHE. ML:1.2 3.1065315E-5 0.12 AML other m 2021-12-04T01:51:58.38
GU.RSP.HHN. ML:1.2 2.8010525E-5 0.2208 AML other m 2021-12-04T01:51:58.24
GU.RSP.HNE. ML:1.1 2.7371625E-5 0.52 AML other m 2021-12-04T01:51:50.95
GU.RSP.HNN. ML:1.1 2.626192E-5 0.2496 AML other m 2021-12-04T01:51:57.85
GU.STV.HHE. ML:1.2 2.962823E-5 0.1616 AML other m 2021-12-04T01:51:58.45
GU.STV.HHN. ML:1.1 2.300872E-5 0.1408 AML other m 2021-12-04T01:51:58.21
GU.GBOS.HHE. ML:1.4 4.324367E-5 0.1408 AML other m 2021-12-04T01:51:59.14
GU.GBOS.HHN. ML:1.1 2.3168965E-5 0.16 AML other m 2021-12-04T01:52:00.16
GU.ROTM.HHE. ML:2.1 0.0002071295 0.2 AML other m 2021-12-04T01:52:01.04
GU.ROTM.HHN. ML:2 0.00017584225 0.2608 AML other m 2021-12-04T01:52:00.71
GU.RRL.HHE. ML:1.5 4.850133E-5 3.4 AML other m 2021-12-04T01:52:21.83
GU.RRL.HHN. ML:1 1.62530595E-5 0.84 AML other m 2021-12-04T01:52:18.58
GU.PCP.HHE. ML:1.2 1.8379155E-5 0.24 AML other m 2021-12-04T01:52:03.74
GU.PCP.HHN. ML:1.2 2.0952185E-5 0.2192 AML other m 2021-12-04T01:52:03.92
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