Earthquake (quarry blast) with magnitude of ML 0.7 on date 07-12-2018 and time 12:33:41 (Italy) in region 2 km SE Battifollo (CN)

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

  • 07-12-2018 11:33:41 (UTC)
  • 07-12-2018 12:33:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.31, 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
Battifollo CN 2 219 219
Bagnasco CN 2 1035 1254
Lisio CN 3 201 1455
Scagnello CN 4 194 1649
Massimino SV 4 113 1762
Viola CN 5 391 2153
Nucetto CN 5 430 2583
Perlo CN 6 116 2699
Priola CN 7 701 3400
Monasterolo Casotto CN 7 89 3489
Mombasiglio CN 8 609 4098
Pamparato CN 9 302 4400
Ceva CN 9 5782 10182
Priero CN 10 529 10711
Castelnuovo di Ceva CN 10 110 10821
Roburent CN 10 495 11316
Torre Mondovì CN 11 498 11814
Calizzano SV 11 1475 13289
Murialdo SV 11 841 14130
Sale San Giovanni CN 12 183 14313
Sale delle Langhe CN 12 486 14799
Lesegno CN 12 794 15593
San Michele Mondovì CN 12 2003 17596
Garessio CN 12 3244 20840
Montaldo di Mondovì CN 12 557 21397
Roascio CN 13 97 21494
Montezemolo CN 13 259 21753
Castellino Tanaro CN 14 312 22065
Torresina CN 14 52 22117
Niella Tanaro CN 15 1046 23163
Vicoforte CN 15 3136 26299
Osiglia SV 15 444 26743
Paroldo CN 15 211 26954
Briaglia CN 15 318 27272
Roccavignale SV 15 752 28024
Bardineto SV 15 756 28780
Igliano CN 15 74 28854
Monastero di Vasco CN 16 1297 30151
Cigliè CN 16 190 30341
Camerana CN 16 631 30972
Millesimo SV 16 3383 34355
Rocca Cigliè CN 16 142 34497
Marsaglia CN 17 245 34742
Saliceto CN 17 1323 36065
Frabosa Soprana CN 17 759 36824
Bormida SV 17 387 37211
Frabosa Sottana CN 18 1497 38708
Cengio SV 18 3563 42271
Bastia Mondovì CN 18 669 42940
Mondovì CN 18 22484 65424
Cosseria SV 19 1105 66529
Plodio SV 19 650 67179
Murazzano CN 19 834 68013
Mombarcaro CN 19 268 68281
Monesiglio CN 19 645 68926
Ormea CN 19 1617 70543
Erli SV 20 245 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)
74 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 2018-12-07
11:33:41
44.31 8.02 1 2019-06-04
09:16:19
Bollettino Sismico Italiano INGV 69170471
Rev 100 ML 0.7 2018-12-07
11:33:41
44.27 8.03 8 2018-12-07
11:40:43
Sala Sismica INGV-Roma 63736871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-07 11:33:41 ± 0.24
Latitude 44.31 ± 0.02
Longitude 8.02 ± 0.02
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 69170471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2130
Semi-minor axis of confidence ellipse (meter) 1150
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 345
Circular confidence region, given by single value of horizontal uncertainty (meter) 2130
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.14389
Epicentral distance of station farthest from the epicenter (degree) 0.44247
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 63736871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-07 11:40:43

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 69170471
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-03 10:32:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PCP.HHZ. 2018-12-07T11:33:51.10 0.3 undecidable manual P 58 0.4425 91 -0.15 69
GU.ENR.HHZ. 2018-12-07T11:33:50.54 0.3 undecidable manual P 260 0.4362 91 -0.58 62
IV.QLNO.HHZ. 2018-12-07T11:33:46.81 0.1 undecidable manual P 85 0.2338 91 0.2 95
GU.CANO.HHZ. 2018-12-07T11:33:45.49 0.1 undecidable manual P 122 0.1835 91 -0.01 100
GU.GBOS.HHZ. 2018-12-07T11:33:45.14 0.1 undecidable manual P 244 0.1439 92 0.52 90
GU.RORO.HHZ. 2018-12-07T11:33:45.59 0.1 undecidable manual P 170 0.1961 91 -0.19 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHN. ML:0.7 3.755E-5 0.48 AML other m 2018-12-07T11:33:46.55
GU.GBOS.HHN. ML:0.6 3.8033485E-5 0.1216 AML other m 2018-12-07T11:33:47.86
GU.RORO.HHE. ML:0 4.02E-5 1.52 AML other m 2018-12-07T11:33:48.94
GU.CANO.HHN. ML:0.6 3.174728E-5 0.096 AML other m 2018-12-07T11:33:48.54
GU.CANO.HHE. ML:0.9 6.1384795E-5 0.1152 AML other m 2018-12-07T11:33:48.77
IV.QLNO.HHN. ML:0.8 4.174022E-5 0.1216 AML other m 2018-12-07T11:33:50.94
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