Earthquake with magnitude of ML 1.2 on date 29-10-2023 and time 14:04:48 (Italy) in region 3 km SE Sampeyre (CN)

A magnitude ML 1.2 earthquake occured in region: 3 km SE Sampeyre (CN), on

  • 29-10-2023 13:04:48 (UTC)
  • 29-10-2023 14:04:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5600, 7.2120 at 9 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
Sampeyre CN 3 1022 1022
Frassino CN 5 265 1287
Macra CN 7 59 1346
Melle CN 9 292 1638
San Damiano Macra CN 9 430 2068
Celle di Macra CN 9 100 2168
Stroppo CN 9 103 2271
Elva CN 10 97 2368
Valmala CN 11 52 2420
Cartignano CN 11 190 2610
Casteldelfino CN 12 157 2767
Brossasco CN 12 1084 3851
Sanfront CN 13 2395 6246
Oncino CN 13 76 6322
Gambasca CN 13 371 6693
Isasca CN 14 76 6769
Roccabruna CN 14 1585 8354
Martiniana Po CN 14 734 9088
Marmora CN 15 68 9156
Venasca CN 15 1437 10593
Rifreddo CN 15 1078 11671
Paesana CN 15 2784 14455
Ostana CN 15 83 14538
Prazzo CN 15 170 14708
Bellino CN 16 109 14817
Canosio CN 16 80 14897
Villar San Costanzo CN 16 1547 16444
Dronero CN 16 7035 23479
Pontechianale CN 16 179 23658
Brondello CN 16 290 23948
Crissolo CN 16 168 24116
Castelmagno CN 17 66 24182
Pradleves CN 17 250 24432
Revello CN 18 4262 28694
Rossana CN 18 908 29602
Pagno CN 18 585 30187
Montemale di Cuneo CN 19 241 30428
Envie CN 19 2074 32502
Monterosso Grana CN 19 505 33007
Castellar CN 19 295 33302
Piasco CN 20 2774 36076
Acceglio CN 20 162 36238

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Cuneo (56081 inhabitants)
62 Km SW of Moncalieri (57294 inhabitants)
68 Km SW of Torino (890529 inhabitants)
87 Km W of Asti (76202 inhabitants)
94 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
Reviewed
Rev100
ML 1.2 2023-10-29
13:04:48
44.5605 7.2118 9 2023-10-29
13:18:22
Sala Sismica INGV-Roma 122547291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-29 13:04:48 ± 0.16
Latitude 44.5605 ± 0.0081
Longitude 7.2118 ± 0.0353
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122547291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2736
Semi-minor axis of confidence ellipse (meter) 865
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 2740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.90022
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 122547291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-29 13:18:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RSP.HHZ. 2023-10-29T13:05:07.61 1.0 undecidable manual S 4 65.2902 50 -0.96 17
GU.LSD.HHE. 2023-10-29T13:05:06.09 0.1 undecidable manual P 357 99.9222 50 0.82 69
GU.CANO.HHZ. 2023-10-29T13:05:04.39 0.3 undecidable manual P 115 90.243 50 0.61 58
GU.RORO.HHE. 2023-10-29T13:05:02.93 0.6 undecidable manual P 126 84.0492 50 0.1 44
FR.SAOF.HHE.00 2023-10-29T13:05:01.02 0.6 undecidable manual P 157 69.2751 50 0.48 42
GU.ENR.HHZ. 2023-10-29T13:05:01.40 0.3 undecidable manual S 156 40.2264 50 -0.47 67
GU.STV.HHZ. 2023-10-29T13:05:00.02 0.3 undecidable manual S 165 36.1416 50 -0.76 60
GU.RSP.HHZ. 2023-10-29T13:04:59.46 1.0 undecidable manual P 4 65.2902 50 -0.48 21
GU.GBOS.HHZ. 2023-10-29T13:04:59.63 0.6 undecidable manual P 125 61.0944 50 0.35 44
GU.BHB.HHZ. 2023-10-29T13:04:58.23 0.6 undecidable manual S 8 30.747 106 -1.01 36
GU.ENR.HHZ. 2023-10-29T13:04:56.13 0.1 undecidable manual P 156 40.2264 50 0.06 97
GU.STV.HHZ. 2023-10-29T13:04:55.50 0.6 undecidable manual P 165 36.1416 50 0.06 49
GU.BHB.HHZ. 2023-10-29T13:04:54.41 0.3 negative manual P 8 30.747 106 -0.14 73
GU.PZZ.HHZ. 2023-10-29T13:04:52.50 0.1 undecidable manual S 232 9.6792 132 -0.15 100
GU.PZZ.HHZ. 2023-10-29T13:04:51.01 0.1 positive manual P 232 9.6792 132 0.26 98
GU.IT06A.HHZ. 2023-10-29T13:04:51.98 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.6 0.000549 0.3 AML other m 2023-10-29T13:04:52.72
GU.PZZ.HHE. ML:1.4 0.0003395 0.16 AML other m 2023-10-29T13:04:53.18
GU.BHB.HHE. ML:1.0 0.00004855529999999999 0.0832 AML other m 2023-10-29T13:04:58.94
GU.BHB.HHN. ML:1.0 0.000047677535 0.1408 AML other m 2023-10-29T13:04:58.68
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