Earthquake with magnitude of ML 1.4 on date 13-10-2023 and time 22:33:19 (Italy) in region 2 km W Monterosso Grana (CN)

A magnitude ML 1.4 earthquake occured in region: 2 km W Monterosso Grana (CN), on

  • 13-10-2023 20:33:19 (UTC)
  • 13-10-2023 22:33:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4050, 7.3000 at 10 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
Monterosso Grana CN 2 505 505
Pradleves CN 2 250 755
Valgrana CN 7 786 1541
Castelmagno CN 7 66 1607
Montemale di Cuneo CN 7 241 1848
Cartignano CN 8 190 2038
Roccabruna CN 9 1585 3623
Dronero CN 9 7035 10658
Valloriate CN 10 109 10767
Demonte CN 10 2003 12770
San Damiano Macra CN 10 430 13200
Rittana CN 10 109 13309
Caraglio CN 10 6836 20145
Villar San Costanzo CN 11 1547 21692
Bernezzo CN 11 4104 25796
Gaiola CN 12 582 26378
Aisone CN 12 248 26626
Moiola CN 12 234 26860
Celle di Macra CN 13 100 26960
Roccasparvera CN 13 741 27701
Cervasca CN 14 5013 32714
Macra CN 14 59 32773
Vignolo CN 15 2600 35373
Vinadio CN 15 644 36017
Valmala CN 16 52 36069
Valdieri CN 16 935 37004
Borgo San Dalmazzo CN 17 12468 49472
Marmora CN 17 68 49540
Melle CN 18 292 49832
Roccavione CN 18 2761 52593
Stroppo CN 18 103 52696
Canosio CN 18 80 52776
Busca CN 19 10181 62957
Frassino CN 19 265 63222
Rossana CN 19 908 64130
Sambuco CN 19 92 64222
Brossasco CN 19 1084 65306
Venasca CN 19 1437 66743
Roaschia CN 20 107 66850
Entracque CN 20 774 67624

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Cuneo (56081 inhabitants)
73 Km SW of Moncalieri (57294 inhabitants)
76 Km NW of Sanremo (54807 inhabitants)
80 Km SW of Torino (890529 inhabitants)
90 Km SW of Asti (76202 inhabitants)
95 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
Reviewed
Rev100
ML 1.4 2023-10-13
20:33:19
44.4052 7.2998 10 2023-10-13
20:43:19
Sala Sismica INGV-Roma 122056661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-13 20:33:19 ± 0.13
Latitude 44.4052 ± 0.0135
Longitude 7.2998 ± 0.0277
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122056661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2633
Semi-minor axis of confidence ellipse (meter) 333
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 2630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.69877
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 122056661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-13 20:43:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
4P.IT02A.HHZ. 2023-10-13T20:34:00.53 3.0 undecidable manual S -0.1 0
GU.RORO.HHZ. 2023-10-13T20:33:40.36 0.6 undecidable manual S 118 69.0753 50 -0.16 46
FR.SAOF.HHE.00 2023-10-13T20:33:34.99 1.0 undecidable manual S 156 50.7159 50 -0.63 21
GU.CANO.HHE. 2023-10-13T20:33:33.24 0.6 undecidable manual P 106 77.5668 50 0.37 44
GU.IMI.HHZ. 2023-10-13T20:33:32.75 0.6 undecidable manual P 139 72.372 50 0.68 40
GU.RSP.HHZ. 2023-10-13T20:33:32.72 3.0 undecidable manual P 0
GU.RRL.HHE. 2023-10-13T20:33:31.90 0.3 undecidable manual P 325 69.9744 50 0.21 69
GU.RORO.HHZ. 2023-10-13T20:33:31.71 0.3 undecidable manual P 118 69.0753 50 0.16 70
FR.SAOF.HHE.00 2023-10-13T20:33:28.68 0.1 undecidable manual P 156 50.7159 50 -0.04 99
GU.ENR.HHZ. 2023-10-13T20:33:27.05 0.3 undecidable manual S 154 21.6672 114 -0.46 71
GU.BHB.HHZ. 2023-10-13T20:33:27.60 0.1 undecidable manual P 357 47.8188 50 -0.68 84
GU.STV.HHZ. 2023-10-13T20:33:26.06 0.1 undecidable manual S 173 17.871 118 -0.27 100
GU.PZZ.HHZ. 2023-10-13T20:33:26.29 0.3 undecidable manual S 308 18.3705 117 -0.2 76
GU.ENR.HHZ. 2023-10-13T20:33:24.29 0.1 undecidable manual P 154 21.6672 114 0.25 99
GU.PZZ.HHZ. 2023-10-13T20:33:23.70 0.1 positive manual P 308 18.3705 117 0.25 100
GU.STV.HHZ. 2023-10-13T20:33:23.71 0.1 undecidable manual P 173 17.871 118 0.35 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:1.3 0.0001815 0.18 AML other m 2023-10-13T20:33:26.24
GU.STV.HHN. ML:1.3 0.0001625 0.08 AML other m 2023-10-13T20:33:26.23
GU.PZZ.HHN. ML:1.6 0.00034399999999999996 0.1 AML other m 2023-10-13T20:33:26.42
GU.PZZ.HHE. ML:1.4 0.00022749999999999997 0.1 AML other m 2023-10-13T20:33:26.55
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