Earthquake with magnitude of ML 1.6 on date 02-12-2021 and time 09:23:25 (UTC) in region 2 km SW Cavallerleone (CN)

A magnitude ML 1.6 earthquake occured in region: 2 km SW Cavallerleone (CN), on

  • 02-12-2021 09:23:25 (UTC)
  • 02-12-2021 10:23:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.724, 7.657 at 26 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
Cavallerleone CN 2 644 644
Cavallermaggiore CN 3 5533 6177
Ruffia CN 5 367 6544
Monasterolo di Savigliano CN 5 1371 7915
Racconigi CN 5 10038 17953
Murello CN 5 966 18919
Villanova Solaro CN 6 772 19691
Savigliano CN 8 21441 41132
Scarnafigi CN 8 2162 43294
Marene CN 9 3175 46469
Caramagna Piemonte CN 9 3034 49503
Torre San Giorgio CN 10 730 50233
Polonghera CN 10 1160 51393
Moretta CN 10 4136 55529
Faule CN 11 486 56015
Casalgrasso CN 11 1480 57495
Sommariva del Bosco CN 12 6361 63856
Sanfrè CN 12 3040 66896
Pancalieri TO 13 2038 68934
Lombriasco TO 13 1050 69984
Lagnasco CN 14 1453 71437
Villafranca Piemonte TO 14 4729 76166
Cardè CN 14 1122 77288
Carmagnola TO 15 29079 106367
Cervere CN 15 2236 108603
Genola CN 15 2625 111228
Ceresole Alba CN 16 2090 113318
Saluzzo CN 16 16960 130278
Bra CN 16 29737 160015
Osasio TO 17 936 160951
Virle Piemonte TO 17 1206 162157
Cherasco CN 18 9076 171233
Manta CN 18 3787 175020
Pocapaglia CN 18 3339 178359
Vigone TO 18 5182 183541
Vottignasco CN 19 537 184078
Verzuolo CN 19 6459 190537
Salmour CN 19 704 191241
Cercenasco TO 20 1803 193044
Sommariva Perno CN 20 2797 195841

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km S of Moncalieri (57294 inhabitants)
38 Km N of Cuneo (56081 inhabitants)
39 Km S of Torino (890529 inhabitants)
48 Km W of Asti (76202 inhabitants)
79 Km W of Alessandria (93943 inhabitants)
80 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 1.6 2021-12-02
09:23:25
44.7243 7.6568 26 2021-12-02
09:47:38
Sala Sismica INGV-Roma 98044481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 09:23:25 ± 0.13
Latitude 44.7243 ± 0.0054
Longitude 7.6568 ± 0.0089
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98044481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 274
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.94429
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 98044481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 09:47:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.IMI.HHZ. 2021-12-02T09:23:53.28 0.1 undecidable manual S 168 0.831 100 -0.07 95
CH.MUGIO.HHZ. 2021-12-02T09:23:52.40 3.0 undecidable manual Pn 1.7 0
MN.BNI.HHE. 2021-12-02T09:23:51.64 0.3 undecidable manual S 296 0.7662 101 0.16 71
GU.CIRO.HHZ. 2021-12-02T09:23:51.11 3.0 undecidable manual S 0
FR.SAOF.HHZ.00 2021-12-02T09:23:50.41 0.1 undecidable manual S 186 0.7419 102 -0.35 92
GU.RORO.HHZ. 2021-12-02T09:23:49.04 0.1 undecidable manual S 154 0.6781 103 0.13 98
CH.DIX.HHZ. 2021-12-02T09:23:48.81 3.0 undecidable manual Pn 1.06 0
IV.QLNO.HHZ. 2021-12-02T09:23:47.32 0.1 undecidable manual S 129 0.6331 104 -0.3 95
GU.PCP.HHZ. 2021-12-02T09:23:47.86 0.1 undecidable manual S 106 0.6583 103 -0.47 91
GU.GBOS.HHZ. 2021-12-02T09:23:44.53 0.1 undecidable manual S 165 0.5 108 0.71 86
GU.STV.HHZ. 2021-12-02T09:23:44.32 0.3 undecidable manual S 206 0.5342 107 -0.46 70
GU.ENR.HHZ. 2021-12-02T09:23:44.33 0.1 undecidable manual S 199 0.5234 107 -0.15 100
GU.RSP.HHZ. 2021-12-02T09:23:43.39 0.1 undecidable manual S 327 0.5063 108 -0.61 91
GU.BURY.HHZ. 2021-12-02T09:23:43.52 0.1 undecidable manual P 184 0.9443 99 -0.15 91
GU.PZZ.HHZ. 2021-12-02T09:23:42.25 0.3 undecidable manual S 241 0.4425 111 0.04 78
IV.MONC.HHZ. 2021-12-02T09:23:41.03 0.3 undecidable manual S 29 0.3984 113 0.03 78
GU.IMI.HHZ. 2021-12-02T09:23:41.93 0.6 positive manual P 168 0.831 100 0.17 47
FR.SAOF.HHZ.00 2021-12-02T09:23:40.20 0.6 negative manual P 186 0.7419 102 -0.07 49
GU.CIRO.HHZ. 2021-12-02T09:23:40.90 3.0 undecidable manual P 0
MN.BNI.HHE. 2021-12-02T09:23:40.92 0.3 undecidable manual P 296 0.7662 101 0.24 70
GU.LSD.HHE. 2021-12-02T09:23:40.75 0.3 undecidable manual P 334 0.822 100 -0.87 57
GU.TRAV.HHZ. 2021-12-02T09:23:39.50 3.0 positive manual Pn -0.58 0
GU.RRL.HHZ. 2021-12-02T09:23:39.22 1.0 positive manual P 288 0.6448 104 0.56 22
GU.RORO.HHZ. 2021-12-02T09:23:39.29 0.1 undecidable manual P 154 0.6781 103 0.09 98
IV.QLNO.HHZ. 2021-12-02T09:23:38.75 0.6 undecidable manual P 129 0.6331 104 0.29 47
GU.PCP.HHZ. 2021-12-02T09:23:38.89 0.6 positive manual P 106 0.6583 103 0.02 50
GU.STV.HHZ. 2021-12-02T09:23:36.73 0.3 negative manual P 206 0.5342 107 -0.09 76
GU.ENR.HHZ. 2021-12-02T09:23:36.78 0.6 undecidable manual P 199 0.5234 107 0.14 50
GU.GBOS.HHZ. 2021-12-02T09:23:36.94 0.6 positive manual P 165 0.5 108 0.68 44
GU.RSP.HHZ. 2021-12-02T09:23:36.08 0.1 undecidable manual P 327 0.5063 108 -0.29 98
IV.MONC.HHZ. 2021-12-02T09:23:35.49 0.3 undecidable manual P 29 0.3984 113 0.85 61
GU.PZZ.HHZ. 2021-12-02T09:23:35.50 0.3 negative manual P 241 0.4425 111 0.17 76
GU.BHB.HHZ. 2021-12-02T09:23:33.80 0.1 negative manual P 292 0.3004 121 0.65 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:1.5 0.0001095 0.48 AML other m 2021-12-02T09:23:39.77
GU.BHB.HHE. ML:1.5 0.00010215 0.08 AML other m 2021-12-02T09:23:39.88
GU.PZZ.HHN. ML:1.9 0.0002 0.34 AML other m 2021-12-02T09:23:42.45
GU.PZZ.HHE. ML:1.7 0.0001187 0.62 AML other m 2021-12-02T09:23:43.09
GU.ENR.HHN. ML:1.8 0.000125 0.06 AML other m 2021-12-02T09:23:44.62
GU.ENR.HHE. ML:2 0.0002045 0.08 AML other m 2021-12-02T09:23:44.61
GU.TRAV.HHN. ML:1.6 4.74E-5 0.14 AML other m 2021-12-02T09:23:49.47
GU.TRAV.HHE. ML:1.6 5.11E-5 0.3 AML other m 2021-12-02T09:23:49.48
GU.CIRO.HHE. ML:1.4 2.455E-5 0.12 AML other m 2021-12-02T09:23:51.82
GU.CIRO.HHN. ML:1.4 2.745E-5 1.4 AML other m 2021-12-02T09:23:56.13
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