Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 05-01-2021 and time 19:48:29 (Italy) in region 3 km N Sampeyre (CN)

A magnitude ML 2.2 earthquake occured in region: 3 km N Sampeyre (CN), on

  • 05-01-2021 18:48:29 (UTC)
  • 05-01-2021 19:48:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6100, 7.1840 at 11 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sampeyre CN 3 1022 1022
Oncino CN 8 76 1098
Frassino CN 9 265 1363
Ostana CN 9 83 1446
Casteldelfino CN 9 157 1603
Crissolo CN 10 168 1771
Elva CN 11 97 1868
Paesana CN 11 2784 4652
Sanfront CN 12 2395 7047
Melle CN 12 292 7339
Macra CN 12 59 7398
Pontechianale CN 12 179 7577
Stroppo CN 12 103 7680
Gambasca CN 13 371 8051
Bellino CN 14 109 8160
Rifreddo CN 14 1078 9238
Celle di Macra CN 14 100 9338
Martiniana Po CN 15 734 10072
Brossasco CN 15 1084 11156
San Damiano Macra CN 15 430 11586
Valmala CN 15 52 11638
Isasca CN 16 76 11714
Cartignano CN 17 190 11904
Envie CN 17 2074 13978
Barge CN 17 7774 21752
Revello CN 17 4262 26014
Prazzo CN 17 170 26184
Venasca CN 18 1437 27621
Brondello CN 18 290 27911
Marmora CN 18 68 27979
Canosio CN 19 80 28059
Roccabruna CN 19 1585 29644
Pagno CN 20 585 30229
Bagnolo Piemonte CN 20 6024 36253

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of Cuneo (56081 inhabitants)
59 Km SW of Moncalieri (57294 inhabitants)
65 Km SW of Torino (890529 inhabitants)
87 Km W of Asti (76202 inhabitants)
100 Km NW of Sanremo (54807 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 2.2 2021-01-05
18:48:29		 44.6102 7.1835 11 2021-07-12
16:54:57		 Bollettino Sismico Italiano INGV 86829221
Reviewed
Rev100 		ML 2.2 2021-01-05
18:48:29		 44.6043 7.1717 11 2021-01-05
18:57:16		 Sala Sismica INGV-Roma 86035371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-05 18:48:29 ± 0.17
Latitude 44.6102 ± 0.0072
Longitude 7.1835 ± 0.0152
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86829221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1148
Semi-minor axis of confidence ellipse (meter) 597
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 1150.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.47759
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 86829221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-04 11:19:10

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 86035371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-05 18:57:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APRC.HHZ. 2021-01-05T18:50:12.58 3.0 undecidable manual Pn 5.09 0
IV.MMUR.HNZ. 2021-01-05T18:49:51.94 3.0 positive manual Pg 17.48 0
GU.FIR.HHZ. 2021-01-05T18:49:24.90 3.0 undecidable manual P 0
GU.REMY.HHZ. 2021-01-05T18:49:08.94 0.6 undecidable manual S 359 136.1637 50 0.69 34
GU.PCP.HHZ. 2021-01-05T18:49:00.96 0.6 undecidable manual S 94 107.9142 50 0.27 40
IV.VARE.HHZ. 2021-01-05T18:48:58.67 3.0 undecidable manual P -0.91 0
GU.CANO.HHZ. 2021-01-05T18:48:57.47 0.6 undecidable manual S 118 94.7385 50 0.29 41
GU.BURY.HNN. 2021-01-05T18:48:57.96 1.0 undecidable manual S 162 96.5256 50 0.3 21
GU.LSD.HHN. 2021-01-05T18:48:57.00 0.6 undecidable manual S 358 94.3389 50 -0.07 43
CH.DIX.HHZ. 2021-01-05T18:48:55.59 0.1 undecidable manual P 6 164.0136 50 -0.5 66
GU.RORO.HHZ. 2021-01-05T18:48:55.07 0.3 undecidable manual S 128 89.1441 50 -0.63 57
GU.RNCA.HHZ. 2021-01-05T18:48:53.15 0.3 undecidable manual P 96 140.6481 50 0.65 51
GU.REMY.HHZ. 2021-01-05T18:48:52.46 0.3 undecidable manual P 359 136.1637 50 0.65 51
GU.SATI.HHZ. 2021-01-05T18:48:52.41 0.3 undecidable manual P 21 150.2385 50 -1.57 31
IV.MRGE.HHZ. 2021-01-05T18:48:51.48 0.1 undecidable manual P 356 128.9709 50 0.77 66
FR.SAOF.HHZ.00 2021-01-05T18:48:51.60 0.3 undecidable manual S 157 75.1692 50 -0.37 63
MN.BNI.HHZ. 2021-01-05T18:48:48.40 0.3 undecidable manual S 321 63.0924 50 -0.34 65
GU.PCP.HHZ. 2021-01-05T18:48:47.82 0.1 positive manual P 94 107.9142 50 0.37 79
GU.CIRO.HHZ. 2021-01-05T18:48:47.52 0.1 undecidable manual P 15 114.0969 50 -0.88 65
GU.BURY.HNN. 2021-01-05T18:48:46.11 0.3 undecidable manual P 162 96.5256 50 0.41 60
GU.TRAV.HHZ. 2021-01-05T18:48:46.50 0.1 undecidable manual P 24 109.3128 50 -1.17 57
GU.CANO.HHZ. 2021-01-05T18:48:45.74 0.1 undecidable manual P 118 94.7385 50 0.32 82
GU.LSD.HHN. 2021-01-05T18:48:45.63 0.3 undecidable manual P 358 94.3389 50 0.28 62
GU.RRL.HHZ. 2021-01-05T18:48:44.21 0.3 undecidable manual S 318 46.3203 50 -0.06 71
GU.RORO.HHZ. 2021-01-05T18:48:44.73 0.1 negative manual P 128 89.1441 50 0.16 86
FR.SAOF.HHZ.00 2021-01-05T18:48:42.53 0.1 undecidable manual P 157 75.1692 50 0.12 89
GU.STV.HHZ. 2021-01-05T18:48:42.40 0.6 undecidable manual S 164 42.0246 50 -0.72 40
MN.BNI.HHZ. 2021-01-05T18:48:40.99 0.1 positive manual P 321 63.0924 50 0.44 85
GU.RRL.HHZ. 2021-01-05T18:48:38.30 0.1 positive manual P 318 46.3203 50 0.33 90
GU.BHB.HHE. 2021-01-05T18:48:38.38 0.1 undecidable manual S 14 25.752 50 -0.39 92
GU.STV.HHZ. 2021-01-05T18:48:37.36 0.1 undecidable manual P 164 42.0246 50 0.05 96
GU.BHB.HHE. 2021-01-05T18:48:35.04 0.1 negative manual P 14 25.752 50 0.25 95
GU.PZZ.HHZ. 2021-01-05T18:48:34.64 0.3 undecidable manual S 205 12.6762 130 -0.49 69
GU.PZZ.HHZ. 2021-01-05T18:48:32.78 0.1 positive manual P 205 12.6762 130 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHE. ML:3.0 0.010035 0.22 AML other m 2021-01-05T18:48:35.17
GU.PZZ.HHN. ML:2.8 0.0076950000000000005 0.52 AML other m 2021-01-05T18:48:36.11
GU.STV.HHN. ML:2.2 0.000468 1.42 AML other m 2021-01-05T18:48:42.99
GU.STV.HHE. ML:2.2 0.00046750000000000003 0.34 AML other m 2021-01-05T18:48:43.39
GU.RRL.HHN. ML:2.3 0.0006464999999999999 0.24 AML other m 2021-01-05T18:48:44.52
GU.RRL.HHE. ML:2.4 0.0007265 0.66 AML other m 2021-01-05T18:48:45.47
MN.BNI.HNE. ML:2.1 0.0002385 1.56 AML other m 2021-01-05T18:48:48.14
MN.BNI.HHE. ML:2.1 0.0002305 1.58 AML other m 2021-01-05T18:48:48.92
MN.BNI.HNN. ML:1.8 0.00013000000000000002 1 AML other m 2021-01-05T18:48:49.48
MN.BNI.HHN. ML:1.8 0.00012235 0.48 AML other m 2021-01-05T18:48:50.48
FR.SAOF.HHN.00 ML:2.3 0.00027600000000000004 0.48 AML other m 2021-01-05T18:48:52.07
FR.SAOF.HHE.00 ML:2.3 0.0003055 1.16 AML other m 2021-01-05T18:48:52.66
GU.CANO.HHN. ML:2.5 0.00032450000000000003 0.9 AML other m 2021-01-05T18:48:59.61
GU.CANO.HHE. ML:2.6 0.000435 0.3 AML other m 2021-01-05T18:49:01.36
GU.PCP.HHE. ML:2.2 0.0001385 0.24 AML other m 2021-01-05T18:49:03.72
GU.PCP.HHN. ML:2.3 0.0001605 0.5 AML other m 2021-01-05T18:49:03.74
GU.TRAV.HHE. ML:2.1 0.000117 0.26 AML other m 2021-01-05T18:49:03.79
GU.TRAV.HHN. ML:2.2 0.000147 0.24 AML other m 2021-01-05T18:49:04.69
GU.CIRO.HHN. ML:1.9 0.00006965 1.18 AML other m 2021-01-05T18:49:06.84
GU.CIRO.HHE. ML:2.0 0.0000853 0.26 AML other m 2021-01-05T18:49:06.76
IV.MRGE.HHN. ML:2.2 0.000112 0.86 AML other m 2021-01-05T18:49:10.16
IV.MRGE.HHE. ML:2.3 0.0001235 1.26 AML other m 2021-01-05T18:49:10.78
GU.REMY.HHN. ML:2.2 0.0001074 1.08 AML other m 2021-01-05T18:49:12.33
GU.REMY.HHE. ML:2.2 0.00010575000000000001 1.06 AML other m 2021-01-05T18:49:14.62
CH.DIX.HHE. ML:2.6 0.0001715 1.72 AML other m 2021-01-05T18:49:20.13
CH.DIX.HHN. ML:2.5 0.00014649999999999998 0.9 AML other m 2021-01-05T18:49:23.25
IV.VARE.HHN. ML:2.1 0.0000385 1.32 AML other m 2021-01-05T18:49:32.24
IV.VARE.HHE. ML:2.1 0.000041800000000000006 0.48 AML other m 2021-01-05T18:49:33.06
MN.TUE.HHN. ML:2.2 0.0000233 1.46 AML other m 2021-01-05T18:49:47.18
MN.TUE.HHE. ML:2.1 0.00002025 0.52 AML other m 2021-01-05T18:49:55.40
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
Waveforms Seismic signals in miniseed + resp format Download