Earthquake with magnitude of ML 0.7 on date 20-08-2023 and time 11:45:53 (Italy) in region 3 km NW Centallo (CN)

A magnitude ML 0.7 earthquake occured in region: 3 km NW Centallo (CN), on

  • 20-08-2023 09:45:53 (UTC)
  • 20-08-2023 11:45:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5220, 7.5620 at 21 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
Centallo CN 3 6954 6954
Villafalletto CN 3 2925 9879
Tarantasca CN 3 2122 12001
Vottignasco CN 5 537 12538
Busca CN 7 10181 22719
Costigliole Saluzzo CN 8 3375 26094
Piasco CN 10 2774 28868
Castelletto Stura CN 11 1351 30219
Rossana CN 11 908 31127
Montanera CN 11 760 31887
Verzuolo CN 11 6459 38346
Genola CN 11 2625 40971
Lagnasco CN 12 1453 42424
Manta CN 12 3787 46211
Sant'Albano Stura CN 13 2422 48633
Fossano CN 13 24739 73372
Venasca CN 14 1437 74809
Cuneo CN 14 56081 130890
Pagno CN 15 585 131475
Castellar CN 15 295 131770
Villar San Costanzo CN 15 1547 133317
Saluzzo CN 15 16960 150277
Brondello CN 15 290 150567
Caraglio CN 16 6836 157403
Trinità CN 16 2263 159666
Isasca CN 16 76 159742
Morozzo CN 16 2086 161828
Savigliano CN 16 21441 183269
Margarita CN 17 1441 184710
Brossasco CN 17 1084 185794
Dronero CN 17 7035 192829
Cervasca CN 17 5013 197842
Valmala CN 17 52 197894
Montemale di Cuneo CN 18 241 198135
Bernezzo CN 18 4104 202239
Rocca de' Baldi CN 18 1662 203901
Scarnafigi CN 18 2162 206063
Roccabruna CN 18 1585 207648
Beinette CN 19 3423 211071
Valgrana CN 19 786 211857
Monasterolo di Savigliano CN 19 1371 213228
Salmour CN 19 704 213932
Martiniana Po CN 19 734 214666
Vignolo CN 19 2600 217266
Melle CN 20 292 217558

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km N of Cuneo (56081 inhabitants)
54 Km S of Moncalieri (57294 inhabitants)
62 Km S of Torino (890529 inhabitants)
66 Km SW of Asti (76202 inhabitants)
77 Km W of Savona (61345 inhabitants)
80 Km N of Sanremo (54807 inhabitants)
94 Km W of Alessandria (93943 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 0.7 2023-08-20
09:45:53
44.522 7.5622 21 2023-08-20
10:04:59
Sala Sismica INGV-Roma 120316581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-20 09:45:53 ± 0.2
Latitude 44.5220 ± 0.0090
Longitude 7.5622 ± 0.0101
Depth (km) 21 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120316581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 913
Semi-minor axis of confidence ellipse (meter) 547
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.59355
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 120316581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-20 10:04:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RORO.HHE. 2023-08-20T09:46:11.96 1.0 undecidable manual S 138 60.5949 102 -0.21 25
FR.SAOF.HHZ.00 2023-08-20T09:46:11.54 0.3 undecidable manual S 181 59.496 102 -0.34 73
GU.PZZ.HHZ. 2023-08-20T09:46:05.47 0.3 undecidable manual S 267 35.3424 112 -0.25 80
GU.STV.HHZ. 2023-08-20T09:46:05.58 0.6 undecidable manual S 211 35.9418 112 -0.29 53
IV.QLNO.HHZ. 2023-08-20T09:46:05.37 0.6 undecidable manual P 109 65.8896 101 0.39 49
GU.RORO.HHE. 2023-08-20T09:46:04.43 0.6 undecidable manual P 138 60.5949 102 0.25 51
4P.IT06A.HHZ. 2023-08-20T09:46:03.22 0.3 undecidable manual S 86 25.1526 122 -0.08 82
FR.SAOF.HHZ.00 2023-08-20T09:46:03.64 0.6 undecidable manual P 181 59.496 102 -0.38 48
GU.BHB.HHZ. 2023-08-20T09:46:01.39 0.3 positive manual P -0.83 1.29
GU.PZZ.HHZ. 2023-08-20T09:46:00.88 1.0 positive manual P 267 35.3424 112 0.42 25
GU.STV.HHZ. 2023-08-20T09:46:00.95 0.1 positive manual P 211 35.9418 112 0.41 100
4P.IT06A.HHZ. 2023-08-20T09:45:59.05 0.6 undecidable manual P 86 25.1526 122 -0.01 55
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:0.5 0.000012315 1.66 AML other m 2023-08-20T09:46:05.93
GU.PZZ.HHE. ML:0.9 0.000026622125000000002 0.1984 AML other m 2023-08-20T09:46:06.03
GU.PZZ.HHN. ML:0.8 0.000022486105 0.1792 AML other m 2023-08-20T09:46:05.83
GU.STV.HHN. ML:0.5 0.000011205 1.1 AML other m 2023-08-20T09:46:06.13
FR.SAOF.HHE.00 ML:0.7 0.000008916510235000002 0.0576 AML other m 2023-08-20T09:46:12.23
FR.SAOF.HHN.00 ML:0.7 0.0000083034825 0.0576 AML other m 2023-08-20T09:46:12.70
IV.QLNO.HHE. ML:0.5 0.000007137081 0.7808 AML other m 2023-08-20T09:46:21.92
IV.QLNO.HHN. ML:0.8 0.0000075448765 0.4416 AML other m 2023-08-20T09:46:16.92
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download