Earthquake with magnitude of ML 1.7 on date 02-12-2021 and time 09:23:25 (UTC) in region 2 km SW Cavallerleone (CN)

A magnitude ML 1.7 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) 44.7250, 7.6530 at 35 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 4 367 6544
Monasterolo di Savigliano CN 5 1371 7915
Murello CN 5 966 8881
Racconigi CN 5 10038 18919
Villanova Solaro CN 6 772 19691
Scarnafigi CN 8 2162 21853
Savigliano CN 9 21441 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
Villafranca Piemonte TO 13 4729 74713
Lagnasco CN 13 1453 76166
Cardè CN 14 1122 77288
Carmagnola TO 15 29079 106367
Cervere CN 15 2236 108603
Genola CN 15 2625 111228
Saluzzo CN 15 16960 128188
Ceresole Alba CN 16 2090 130278
Bra CN 16 29737 160015
Osasio TO 17 936 160951
Virle Piemonte TO 17 1206 162157
Manta CN 18 3787 165944
Vigone TO 18 5182 171126
Cherasco CN 18 9076 180202
Pocapaglia CN 19 3339 183541
Vottignasco CN 19 537 184078
Verzuolo CN 19 6459 190537
Cercenasco TO 19 1803 192340
Salmour CN 20 704 193044

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)
81 Km NW of Savona (61345 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.7 2021-12-02
09:23:25
44.7253 7.6527 35 2022-03-30
13:04:36
Bollettino Sismico Italiano INGV 100801351
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 ± 0.1
Latitude 44.7253 ± 0.0072
Longitude 7.6527 ± 0.0114
Depth (km) 35 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100801351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 799
Semi-minor axis of confidence ellipse (meter) 554
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.29768
Epicentral distance of station farthest from the epicenter (degree) 1.36427
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes 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

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 100801351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-09 14:00:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.IMI.HHZ. 2021-12-02T09:23:52.92 0.6 undecidable manual S 168 92.4408 54 -0.05 46
MN.BNI.HHE. 2021-12-02T09:23:51.52 0.3 undecidable manual S 296 84.7485 54 0.2 67
GU.CIRO.HHZ. 2021-12-02T09:23:50.86 0.6 undecidable manual S 356 97.4247 54 -3.2 2
FR.SAOF.HHZ.00 2021-12-02T09:23:50.25 0.6 undecidable manual S 186 82.3509 54 -0.57 42
GU.RRL.HHZ. 2021-12-02T09:23:48.32 0.6 undecidable manual S 288 71.2731 112 0.25 46
GU.TRAV.HHZ. 2021-12-02T09:23:48.50 0.6 undecidable manual S 5 87.5457 54 -3.44 2
GU.RORO.HHZ. 2021-12-02T09:23:48.88 0.6 undecidable manual S 154 75.4689 110 -0.24 45
CH.DIX.HHZ. 2021-12-02T09:23:48.68 0.3 undecidable manual P 353 151.4373 54 0.03 61
IV.QLNO.HHZ. 2021-12-02T09:23:47.42 0.6 undecidable manual S 129 70.5738 112 -0.49 43
GU.PCP.HHZ. 2021-12-02T09:23:47.76 0.6 undecidable manual S 106 73.371 111 -0.83 37
GU.GBOS.HHZ. 2021-12-02T09:23:44.06 0.6 undecidable manual S 164 55.6998 118 -0.22 47
GU.ENR.HHZ. 2021-12-02T09:23:44.37 0.6 undecidable manual S 199 58.0974 117 -0.48 45
GU.STV.HHZ. 2021-12-02T09:23:44.25 0.3 undecidable manual S 206 59.1963 116 -0.87 57
GU.BURY.HHZ. 2021-12-02T09:23:43.39 0.3 undecidable manual P 184 104.9172 54 0.54 61
GU.RSP.HHZ. 2021-12-02T09:23:43.24 0.6 undecidable manual S 327 55.8996 118 -1.1 36
IV.MONC.HHZ. 2021-12-02T09:23:42.08 0.6 undecidable manual S 29 44.2224 124 0.41 47
GU.PZZ.HHZ. 2021-12-02T09:23:42.10 0.3 undecidable manual S 240 48.8178 121 -0.6 67
GU.IMI.HHZ. 2021-12-02T09:23:41.93 0.3 undecidable manual P 168 92.4408 54 0.63 60
GU.LSD.HHE. 2021-12-02T09:23:40.72 0.3 undecidable manual P 334 91.0422 54 -0.41 66
MN.BNI.HHE. 2021-12-02T09:23:40.92 0.3 undecidable manual P 296 84.7485 54 0.58 61
GU.CIRO.HHZ. 2021-12-02T09:23:40.78 0.3 undecidable manual P 356 97.4247 54 -1.15 49
FR.SAOF.HHZ.00 2021-12-02T09:23:40.18 0.3 undecidable manual P 186 82.3509 54 0.13 70
GU.RORO.HHZ. 2021-12-02T09:23:39.26 0.3 undecidable manual P 154 75.4689 110 0.19 71
GU.RRL.HHZ. 2021-12-02T09:23:39.15 0.3 undecidable manual P 288 71.2731 112 0.68 60
GU.TRAV.HHZ. 2021-12-02T09:23:39.47 0.1 undecidable manual P 5 87.5457 54 -1.23 64
GU.BHB.HHZ. 2021-12-02T09:23:39.46 0.6 undecidable manual S 292 33.0447 133 0.14 51
IV.QLNO.HHZ. 2021-12-02T09:23:38.66 0.3 undecidable manual P 129 70.5738 112 0.29 70
GU.PCP.HHZ. 2021-12-02T09:23:38.86 0.1 undecidable manual P 106 73.371 111 0.09 97
GU.ROTM.HHE. 2021-12-02T09:23:37.45 0.3 undecidable manual P 76 56.7987 117 1.02 55
GU.STV.HHZ. 2021-12-02T09:23:36.70 0.1 undecidable manual P 206 59.1963 116 -0.07 98
GU.GBOS.HHZ. 2021-12-02T09:23:36.82 0.3 undecidable manual P 164 55.6998 118 0.54 68
GU.ENR.HHZ. 2021-12-02T09:23:36.79 0.1 undecidable manual P 199 58.0974 117 0.18 97
GU.RSP.HHZ. 2021-12-02T09:23:36.07 0.3 undecidable manual P 327 55.8996 118 -0.24 73
IV.MONC.HHZ. 2021-12-02T09:23:35.39 0.3 undecidable manual P 29 44.2224 124 0.62 66
GU.PZZ.HHZ. 2021-12-02T09:23:35.45 0.1 undecidable manual P 240 48.8178 121 0.08 100
GU.BHB.HHZ. 2021-12-02T09:23:33.80 0.1 negative manual P 292 33.0447 133 0.39 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHN. ML:1.6 0.0001095 0.48 AML other m 2021-12-02T09:23:39.77
GU.BHB.HHE. ML:1.6 0.00010214999999999999 0.08 AML other m 2021-12-02T09:23:39.88
GU.PZZ.HHN. ML:2.0 0.0002 0.34 AML other m 2021-12-02T09:23:42.45
GU.PZZ.HHE. ML:1.8 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:2.1 0.0002045 0.08 AML other m 2021-12-02T09:23:44.61
GU.TRAV.HHN. ML:1.6 0.0000474 0.14 AML other m 2021-12-02T09:23:49.47
GU.TRAV.HHE. ML:1.7 0.00005110000000000001 0.3 AML other m 2021-12-02T09:23:49.48
GU.CIRO.HHE. ML:1.4 0.000024550000000000004 0.12 AML other m 2021-12-02T09:23:51.82
GU.CIRO.HHN. ML:1.4 0.000027450000000000003 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