Earthquake (quarry blast) with magnitude of ML 1.2 on date 09-09-2022 and time 07:47:04 (UTC) in region Robilante (CN)

A magnitude ML 1.2 (quarry blast) earthquake occured in region: Robilante (CN), on

  • 09-09-2022 07:47:04 (UTC)
  • 09-09-2022 09:47:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2940, 7.5080 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Robilante CN 0 2306 2306
Roccavione CN 3 2761 5067
Borgo San Dalmazzo CN 4 12468 17535
Roaschia CN 5 107 17642
Boves CN 6 9835 27477
Vernante CN 6 1178 28655
Roccasparvera CN 8 741 29396
Vignolo CN 8 2600 31996
Valdieri CN 9 935 32931
Gaiola CN 9 582 33513
Peveragno CN 10 5543 39056
Moiola CN 10 234 39290
Entracque CN 10 774 40064
Cervasca CN 11 5013 45077
Rittana CN 11 109 45186
Limone Piemonte CN 12 1485 46671
Cuneo CN 12 56081 102752
Valloriate CN 12 109 102861
Bernezzo CN 12 4104 106965
Beinette CN 14 3423 110388
Chiusa di Pesio CN 14 3676 114064
Caraglio CN 15 6836 120900
Valgrana CN 16 786 121686
Demonte CN 17 2003 123689
Pianfei CN 18 2202 125891
Margarita CN 19 1441 127332
Roccaforte Mondovì CN 19 2085 129417
Montemale di Cuneo CN 19 241 129658
Monterosso Grana CN 20 505 130163
Castelletto Stura CN 20 1351 131514

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SW of Cuneo (56081 inhabitants)
57 Km NW of Sanremo (54807 inhabitants)
78 Km W of Savona (61345 inhabitants)
80 Km S of Moncalieri (57294 inhabitants)
87 Km SW of Asti (76202 inhabitants)
88 Km S of Torino (890529 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 1.2 2022-09-09
07:47:04
44.2937 7.5082 1 2024-03-01
15:28:20
Bollettino Sismico Italiano INGV 115590911
Reviewed
Rev100
ML 1.2 2022-09-09
07:47:04
44.2793 7.5025 5 2022-09-09
07:56:32
Sala Sismica INGV-Roma 109497071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-09 07:47:04 ± 0.13
Latitude 44.2937 ± 0.0090
Longitude 7.5082 ± 0.0101
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 115590911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1030
Semi-minor axis of confidence ellipse (meter) 800
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 9
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.78061
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 115590911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-21 11:36:53

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 109497071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-09 07:56:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PCP.HHZ. 2022-09-09T07:47:20.74 0.3 undecidable manual P 71 86.6466 50 0.41 64
IV.QLNO.HHZ. 2022-09-09T07:47:17.06 0.3 undecidable manual P 87 66.5778 50 -0.18 69
GU.BHB.HHZ. 2022-09-09T07:47:16.07 0.3 undecidable manual P 342 63.1923 50 -0.64 62
GU.BURY.HNZ. 2022-09-09T07:47:15.27 0.3 undecidable manual P 176 56.7987 91 -0.32 69
GU.RORO.HHZ. 2022-09-09T07:47:13.83 0.3 undecidable manual P 114 48.7179 91 -0.14 72
GU.PZZ.HHZ. 2022-09-09T07:47:12.08 0.3 undecidable manual P 307 39.0276 91 0.05 75
GU.MGRO.HHZ. 2022-09-09T07:47:11.34 0.3 undecidable manual P 139 36.6411 91 -0.21 73
GU.GBOS.HHZ. 2022-09-09T07:47:10.07 0.1 undecidable manual P 102 26.9508 91 0.46 93
FR.SAOF.HHZ. 2022-09-09T07:47:10.84 0.3 undecidable manual P 174 34.3434 91 -0.24 73
GU.STV.HHZ. 2022-09-09T07:47:07.50 0.3 undecidable manual P 250 15.3735 92 0.21 76
GU.ENR.HHZ. 2022-09-09T07:47:06.51 0.1 undecidable manual P 225 10.0788 93 0.28 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHE. ML:1.4 0.00045850000000000003 0.34 AML other m 2022-09-09T07:47:10.02
GU.ENR.HHN. ML:1.3 0.0003955 0.26 AML other m 2022-09-09T07:47:10.31
GU.STV.HHN. ML:0.9 0.0000835 0.88 AML other m 2022-09-09T07:47:10.14
GU.STV.HHE. ML:0.9 0.00010114999999999999 0.78 AML other m 2022-09-09T07:47:13.32
GU.GBOS.HHE. ML:1.1 0.00007322414 0.2176 AML other m 2022-09-09T07:47:14.29
GU.GBOS.HHN. ML:1.2 0.00008465 0.44 AML other m 2022-09-09T07:47:15.93
GU.PZZ.HHE. ML:1.2 0.00005575 0.42 AML other m 2022-09-09T07:47:18.72
GU.PZZ.HHN. ML:1.1 0.00004765 0.34 AML other m 2022-09-09T07:47:19.50
GU.MGRO.HHE. ML:1.3 0.0000804 0.88 AML other m 2022-09-09T07:47:21.18
GU.MGRO.HHN. ML:1.5 0.000116 0.44 AML other m 2022-09-09T07:47:21.99
GU.BHB.HHE. ML:1.2 0.000027596759999999997 0.0384 AML other m 2022-09-09T07:47:25.19
GU.BHB.HHN. ML:1.1 0.00002693111 0.2816 AML other m 2022-09-09T07:47:25.65
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