Earthquake (quarry blast) with magnitude of ML 0.7 on date 27-07-2018 and time 10:36:37 (Italy) in region 2 km W Bagnasco (CN)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 2 km W Bagnasco (CN), on

  • 27-07-2018 08:36:37 (UTC)
  • 27-07-2018 10:36:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3, 8.02 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
Battifollo CN 2 219 1254
Lisio CN 4 201 1455
Massimino SV 4 113 1568
Viola CN 5 391 1959
Scagnello CN 5 194 2153
Nucetto CN 5 430 2583
Priola CN 6 701 3284
Perlo CN 6 116 3400
Monasterolo Casotto CN 7 89 3489
Mombasiglio CN 8 609 4098
Pamparato CN 9 302 4400
Ceva CN 10 5782 10182
Priero CN 10 529 10711
Calizzano SV 10 1475 12186
Castelnuovo di Ceva CN 10 110 12296
Roburent CN 11 495 12791
Murialdo SV 11 841 13632
Torre Mondovì CN 11 498 14130
Garessio CN 11 3244 17374
Sale delle Langhe CN 12 486 17860
Sale San Giovanni CN 12 183 18043
Lesegno CN 12 794 18837
San Michele Mondovì CN 12 2003 20840
Montaldo di Mondovì CN 13 557 21397
Montezemolo CN 13 259 21656
Roascio CN 13 97 21753
Osiglia SV 14 444 22197
Castellino Tanaro CN 15 312 22509
Torresina CN 15 52 22561
Bardineto SV 15 756 23317
Vicoforte CN 15 3136 26453
Niella Tanaro CN 15 1046 27499
Paroldo CN 15 211 27710
Roccavignale SV 15 752 28462
Briaglia CN 16 318 28780
Igliano CN 16 74 28854
Millesimo SV 16 3383 32237
Monastero di Vasco CN 17 1297 33534
Camerana CN 17 631 34165
Cigliè CN 17 190 34355
Bormida SV 17 387 34742
Rocca Cigliè CN 17 142 34884
Saliceto CN 17 1323 36207
Frabosa Soprana CN 17 759 36966
Marsaglia CN 17 245 37211
Cengio SV 18 3563 40774
Frabosa Sottana CN 18 1497 42271
Cosseria SV 19 1105 43376
Plodio SV 19 650 44026
Mondovì CN 19 22484 66510
Bastia Mondovì CN 19 669 67179
Ormea CN 19 1617 68796
Mombarcaro CN 19 268 69064
Erli SV 19 245 69309
Murazzano CN 19 834 70143
Monesiglio CN 20 645 70788

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Savona (61345 inhabitants)
39 Km E of Cuneo (56081 inhabitants)
57 Km NE of Sanremo (54807 inhabitants)
68 Km S of Asti (76202 inhabitants)
73 Km W of Genova (586655 inhabitants)
82 Km SE of Moncalieri (57294 inhabitants)
83 Km SW of Alessandria (93943 inhabitants)
90 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
Rev 1000 ML 0.7 2018-07-27
08:36:37
44.3 8.02 1 2019-04-24
14:51:12
Bollettino Sismico Italiano INGV 66648531
Rev 100 ML 0.6 2018-07-27
08:36:38
44.27 8.03 7 2018-07-27
08:44:12
Sala Sismica INGV-Roma 59115371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-27 08:36:37 ± 0.12
Latitude 44.30 ± 0.01
Longitude 8.02 ± 0.01
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 66648531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1140
Semi-minor axis of confidence ellipse (meter) 600
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 353
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
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) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.14389
Epicentral distance of station farthest from the epicenter (degree) 0.50182
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:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 59115371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-27 08:44:12

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 66648531
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-17 22:59:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.STV.HHZ. 2018-07-27T08:36:48.82 0.3 undecidable manual P 264 0.5018 91 -0.23 67
GU.ENR.HHZ. 2018-07-27T08:36:47.43 0.3 undecidable manual P 260 0.438 91 -0.2 69
GU.PCP.HHZ. 2018-07-27T08:36:47.69 0.3 undecidable manual P 57 0.4434 91 -0.06 70
IV.QLNO.HHZ. 2018-07-27T08:36:43.18 0.3 undecidable manual P 84 0.232 91 0.13 72
GU.RORO.HHZ. 2018-07-27T08:36:42.01 0.1 undecidable manual P 171 0.1916 91 -0.13 97
GU.CANO.HHZ. 2018-07-27T08:36:41.89 0.1 undecidable manual P 121 0.1799 91 0.01 100
GU.GBOS.HHZ. 2018-07-27T08:36:41.48 0.1 undecidable manual P 246 0.1439 92 0.39 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHN. ML:0.6 2.985E-5 0.74 AML other m 2018-07-27T08:36:43.41
GU.CANO.HHN. ML:0.6 3.665E-5 0.88 AML other m 2018-07-27T08:36:44.17
GU.RORO.HHE. ML:0.5 2.485E-5 0.42 AML other m 2018-07-27T08:36:45.71
GU.GBOS.HHN. ML:0.6 4.315E-5 1.34 AML other m 2018-07-27T08:36:45.04
GU.GBOS.HHE. ML:0.4 2.61E-5 0.84 AML other m 2018-07-27T08:36:46.11
GU.CANO.HHE. ML:1.2 0.00013 0.96 AML other m 2018-07-27T08:36:48.94
GU.ENR.HHE. ML:0.7 1.685E-5 0.92 AML other m 2018-07-27T08:36:55.78
GU.ENR.HHN. ML:0.9 2.08E-5 0.78 AML other m 2018-07-27T08:36:56.61
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download