Earthquake (quarry blast) with magnitude of ML 0.5 on date 26-07-2022 and time 06:34:17 (UTC) in region 2 km SW Bagnasco (CN)

A magnitude ML 0.5 (quarry blast) earthquake occured in region: 2 km SW Bagnasco (CN), on

  • 26-07-2022 06:34:17 (UTC)
  • 26-07-2022 08:34:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2850, 8.0300 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
Bagnasco CN 2 1035 1035
Massimino SV 4 113 1148
Battifollo CN 4 219 1367
Priola CN 4 701 2068
Lisio CN 5 201 2269
Viola CN 5 391 2660
Scagnello CN 6 194 2854
Nucetto CN 7 430 3284
Perlo CN 7 116 3400
Monasterolo Casotto CN 9 89 3489
Calizzano SV 9 1475 4964
Pamparato CN 9 302 5266
Garessio CN 10 3244 8510
Mombasiglio CN 10 609 9119
Murialdo SV 11 841 9960
Castelnuovo di Ceva CN 11 110 10070
Roburent CN 11 495 10565
Ceva CN 11 5782 16347
Priero CN 12 529 16876
Torre Mondovì CN 13 498 17374
Bardineto SV 13 756 18130
Sale delle Langhe CN 13 486 18616
Sale San Giovanni CN 13 183 18799
Montaldo di Mondovì CN 14 557 19356
Osiglia SV 14 444 19800
Montezemolo CN 14 259 20059
Lesegno CN 14 794 20853
San Michele Mondovì CN 14 2003 22856
Roascio CN 15 97 22953
Roccavignale SV 16 752 23705
Bormida SV 16 387 24092
Castellino Tanaro CN 16 312 24404
Vicoforte CN 17 3136 27540
Torresina CN 17 52 27592
Paroldo CN 17 211 27803
Millesimo SV 17 3383 31186
Niella Tanaro CN 17 1046 32232
Briaglia CN 17 318 32550
Erli SV 18 245 32795
Monastero di Vasco CN 18 1297 34092
Frabosa Soprana CN 18 759 34851
Ormea CN 18 1617 36468
Camerana CN 18 631 37099
Igliano CN 18 74 37173
Saliceto CN 18 1323 38496
Frabosa Sottana CN 18 1497 39993
Cengio SV 18 3563 43556
Castelvecchio di Rocca Barbena SV 19 145 43701
Cigliè CN 19 190 43891
Rocca Cigliè CN 19 142 44033
Nasino SV 19 207 44240
Plodio SV 19 650 44890
Cosseria SV 19 1105 45995
Marsaglia CN 19 245 46240
Castelbianco SV 19 330 46570
Caprauna CN 20 104 46674
Alto CN 20 128 46802

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km W of Savona (61345 inhabitants)
40 Km E of Cuneo (56081 inhabitants)
55 Km NE of Sanremo (54807 inhabitants)
70 Km S of Asti (76202 inhabitants)
73 Km W of Genova (586655 inhabitants)
84 Km SW of Alessandria (93943 inhabitants)
84 Km SE of Moncalieri (57294 inhabitants)
92 Km SE 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 0.5 2022-07-26
06:34:17
44.2852 8.0295 1 2023-01-31
19:03:52
Bollettino Sismico Italiano INGV 111031571
Reviewed
Rev100
ML 0.5 2022-07-26
06:34:17
44.2597 8.0273 7 2022-07-26
07:08:32
Sala Sismica INGV-Roma 107697891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-26 06:34:17 ± 0.13
Latitude 44.2852 ± 0.0108
Longitude 8.0295 ± 0.0088
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 111031571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1210
Semi-minor axis of confidence ellipse (meter) 640
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 341
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.14209
Epicentral distance of station farthest from the epicenter (degree) 0.44876
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 111031571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-10-21 09:56:55

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 107697891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-26 07:08:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.PCP.HHE. 2022-07-26T06:34:27.48 0.3 undecidable manual P 55 49.8168 91 0.06 73
GU.ENR.HHZ. 2022-07-26T06:34:26.82 0.3 undecidable manual P 263 48.9177 91 -0.44 67
GU.MGRO.HHZ. 2022-07-26T06:34:23.82 0.1 undecidable manual P 213 32.1456 91 -0.07 100
IV.QLNO.HHZ. 2022-07-26T06:34:22.52 0.3 undecidable manual P 80 25.4523 91 -0.04 76
GU.RORO.HHZ. 2022-07-26T06:34:21.35 0.3 undecidable manual P 171 19.3695 91 0.01 78
GU.CANO.HHZ. 2022-07-26T06:34:21.17 0.3 undecidable manual P 118 18.6702 92 -0.01 78
GU.GBOS.HHZ. 2022-07-26T06:34:20.98 0.1 undecidable manual P 252 15.7731 92 0.36 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GBOS.HHN. ML:0.2 0.00002235 0.88 AML other m 2022-07-26T06:34:24.90
GU.CANO.HHE. ML:0.8 0.000060224175000000003 0.9792 AML other m 2022-07-26T06:34:24.46
GU.GBOS.HHE. ML:0.1 0.0000149 0.46 AML other m 2022-07-26T06:34:24.65
GU.CANO.HHN. ML:0.7 0.000043175804999999994 0.2976 AML other m 2022-07-26T06:34:26.13
GU.MGRO.HHE. ML:0.3 0.000010482130500000001 0.1792 AML other m 2022-07-26T06:34:29.99
GU.MGRO.HHN. ML:0.8 0.00003185 0.42 AML other m 2022-07-26T06:34:30.40
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