Earthquake with magnitude of ML 0.9 on date 24-11-2021 and time 14:35:13 (UTC) in region 1 km S Piasco (CN)

A magnitude ML 0.9 earthquake occured in region: 1 km S Piasco (CN), on

  • 24-11-2021 14:35:13 (UTC)
  • 24-11-2021 15:35:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5580, 7.4550 at 10 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
Piasco CN 1 2774 2774
Rossana CN 2 908 3682
Costigliole Saluzzo CN 3 3375 7057
Venasca CN 5 1437 8494
Busca CN 5 10181 18675
Verzuolo CN 5 6459 25134
Brondello CN 6 290 25424
Isasca CN 7 76 25500
Pagno CN 7 585 26085
Villafalletto CN 7 2925 29010
Manta CN 7 3787 32797
Castellar CN 7 295 33092
Brossasco CN 8 1084 34176
Valmala CN 9 52 34228
Vottignasco CN 10 537 34765
Tarantasca CN 10 2122 36887
Villar San Costanzo CN 10 1547 38434
Martiniana Po CN 10 734 39168
Saluzzo CN 10 16960 56128
Melle CN 11 292 56420
Lagnasco CN 11 1453 57873
Gambasca CN 12 371 58244
Revello CN 12 4262 62506
Dronero CN 12 7035 69541
Centallo CN 12 6954 76495
Roccabruna CN 13 1585 78080
Rifreddo CN 13 1078 79158
Frassino CN 14 265 79423
Sanfront CN 15 2395 81818
Montemale di Cuneo CN 15 241 82059
Envie CN 15 2074 84133
Caraglio CN 16 6836 90969
Cartignano CN 16 190 91159
Scarnafigi CN 17 2162 93321
Genola CN 17 2625 95946
San Damiano Macra CN 17 430 96376
Valgrana CN 17 786 97162
Bernezzo CN 19 4104 101266
Savigliano CN 19 21441 122707
Castelletto Stura CN 19 1351 124058
Cervasca CN 19 5013 129071
Monterosso Grana CN 19 505 129576
Monasterolo di Savigliano CN 20 1371 130947
Cuneo CN 20 56081 187028
Montanera CN 20 760 187788

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Cuneo (56081 inhabitants)
53 Km SW of Moncalieri (57294 inhabitants)
60 Km SW of Torino (890529 inhabitants)
70 Km SW of Asti (76202 inhabitants)
86 Km NW of Sanremo (54807 inhabitants)
86 Km W 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 0.9 2021-11-24
14:35:13
44.558 7.455 10 2022-03-30
13:04:18
Bollettino Sismico Italiano INGV 97780561
Reviewed
Rev100
ML 1.0 2021-11-24
14:35:13
44.5552 7.428 20 2021-11-24
14:40:42
Sala Sismica INGV-Roma 97753561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-24 14:35:13 ± 0.2
Latitude 44.5580 ± 0.0081
Longitude 7.4550 ± 0.0202
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97780561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1610
Semi-minor axis of confidence ellipse (meter) 820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 1610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.24731
Epicentral distance of station farthest from the epicenter (degree) 0.59535
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 97780561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-25 13:10:27

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 97753561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-24 14:40:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BHB.HHZ. 2021-11-24T14:35:25.20 0.1 undecidable manual S 334 34.3434 50 -0.5 91
GU.ENR.HHZ. 2021-11-24T14:35:25.90 0.3 undecidable manual S 185 36.5412 50 -0.41 70
GU.STV.HHZ. 2021-11-24T14:35:25.60 0.3 undecidable manual S 196 36.1416 50 -0.6 66
GU.RRL.HHE. 2021-11-24T14:35:25.58 0.1 undecidable manual P 308 66.0894 50 -0.01 95
GU.PZZ.HHZ. 2021-11-24T14:35:24.10 0.1 undecidable manual S 258 27.4503 50 0.23 98
GU.GBOS.HHZ. 2021-11-24T14:35:23.14 0.3 undecidable manual P 139 46.5201 50 0.57 65
GU.ENR.HHZ. 2021-11-24T14:35:21.12 0.1 undecidable manual P 185 36.5412 50 0.08 99
GU.STV.HHZ. 2021-11-24T14:35:20.93 0.1 undecidable manual P 196 36.1416 50 -0.05 100
GU.BHB.HHZ. 2021-11-24T14:35:20.76 0.1 undecidable manual P 334 34.3434 50 0.07 100
GU.PZZ.HHZ. 2021-11-24T14:35:20.09 0.1 undecidable manual P 258 27.4503 50 0.46 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHN. ML:1.4 0.000096623035 0.9408 AML other m 2021-11-24T14:35:20.49
GU.STV.HHN. ML:1.0 0.000041967505 0.0608 AML other m 2021-11-24T14:35:23.43
GU.PZZ.HHE. ML:0.9 0.00003899584 0.2624 AML other m 2021-11-24T14:35:24.68
GU.PZZ.HHN. ML:0.6 0.000021886741500000002 0.1408 AML other m 2021-11-24T14:35:25.28
GU.BHB.HHN. ML:0.7 0.00001837402 0.2816 AML other m 2021-11-24T14:35:25.40
GU.ENR.HHE. ML:0.8 0.00002358791 0.064 AML other m 2021-11-24T14:35:26.95
GU.GBOS.HHN. ML:1.2 0.000046494845 0.0992 AML other m 2021-11-24T14:35:41.15
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