Earthquake (quarry blast) with magnitude of ML 0.6 on date 07-02-2019 and time 12:06:37 (Italy) in region 1 km W Roccavignale (SV)

A magnitude ML 0.6 (quarry blast) earthquake occured in region: 1 km W Roccavignale (SV), on

  • 07-02-2019 11:06:37 (UTC)
  • 07-02-2019 12:06:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.37, 8.18 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
Roccavignale SV 1 752 752
Millesimo SV 2 3383 4135
Cengio SV 3 3563 7698
Montezemolo CN 4 259 7957
Cosseria SV 4 1105 9062
Castelnuovo di Ceva CN 4 110 9172
Plodio SV 5 650 9822
Saliceto CN 6 1323 11145
Murialdo SV 6 841 11986
Priero CN 7 529 12515
Camerana CN 7 631 13146
Cairo Montenotte SV 8 13269 26415
Pallare SV 9 923 27338
Perlo CN 9 116 27454
Sale delle Langhe CN 9 486 27940
Carcare SV 9 5587 33527
Sale San Giovanni CN 9 183 33710
Osiglia SV 10 444 34154
Nucetto CN 10 430 34584
Bormida SV 10 387 34971
Gottasecca CN 11 148 35119
Massimino SV 11 113 35232
Paroldo CN 12 211 35443
Ceva CN 12 5782 41225
Monesiglio CN 12 645 41870
Mallare SV 12 1146 43016
Bagnasco CN 13 1035 44051
Altare SV 13 2108 46159
Mombarcaro CN 14 268 46427
Roascio CN 14 97 46524
Torresina CN 14 52 46576
Dego SV 14 1985 48561
Castelletto Uzzone CN 14 331 48892
Prunetto CN 14 451 49343
Battifollo CN 15 219 49562
Calizzano SV 15 1475 51037
Scagnello CN 16 194 51231
Igliano CN 16 74 51305
Piana Crixia SV 17 788 52093
Gorzegno CN 17 304 52397
Mombasiglio CN 17 609 53006
San Benedetto Belbo CN 17 179 53185
Castellino Tanaro CN 17 312 53497
Lisio CN 17 201 53698
Lesegno CN 18 794 54492
Murazzano CN 18 834 55326
Rialto SV 18 564 55890
Priola CN 18 701 56591
Niella Belbo CN 18 372 56963
Marsaglia CN 19 245 57208
Viola CN 19 391 57599
Merana AL 19 189 57788
Giusvalla SV 19 441 58229
Levice CN 19 231 58460
Pezzolo Valle Uzzone CN 19 344 58804
Monasterolo Casotto CN 20 89 58893
Bardineto SV 20 756 59649
Orco Feglino SV 20 890 60539
Quiliano SV 20 7232 67771
Calice Ligure SV 20 1730 69501
Magliolo SV 20 974 70475

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Savona (61345 inhabitants)
50 Km E of Cuneo (56081 inhabitants)
59 Km S of Asti (76202 inhabitants)
60 Km W of Genova (586655 inhabitants)
68 Km NE of Sanremo (54807 inhabitants)
70 Km SW of Alessandria (93943 inhabitants)
81 Km SE of Moncalieri (57294 inhabitants)
88 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 0.6 2019-02-07
11:06:37
44.37 8.18 1 2019-08-22
08:25:02
Bollettino Sismico Italiano INGV 69446721
Rev 100 ML 0.7 2019-02-07
11:06:37
44.33 8.2 11 2019-02-07
11:20:33
Sala Sismica INGV-Roma 65310591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-07 11:06:37 ± 0.17
Latitude 44.37 ± 0.01
Longitude 8.18 ± 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 69446721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1290
Semi-minor axis of confidence ellipse (meter) 740
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 332
Circular confidence region, given by single value of horizontal uncertainty (meter) 1290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.31296
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
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 69446721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-12 23:22:36

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 65310591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-07 11:20:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PCP.HHZ. 2019-02-07T11:06:44.40 0.3 undecidable manual P 56 0.313 91 -0.16 71
GU.RORO.HHZ. 2019-02-07T11:06:43.31 0.3 undecidable manual P 198 0.2671 91 -0.24 70
GU.GBOS.HHZ. 2019-02-07T11:06:43.86 0.1 undecidable manual P 243 0.2743 91 0.14 96
GU.CANO.HHZ. 2019-02-07T11:06:41.21 0.1 positive manual P 166 0.1628 92 -0.02 100
IV.QLNO.HHZ. 2019-02-07T11:06:40.55 0.1 positive manual P 110 0.1241 92 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHN. ML:0.6 5.216363E-5 0.1408 AML other m 2019-02-07T11:06:42.00
IV.QLNO.HHE. ML:0.6 5.2034105E-5 0.32 AML other m 2019-02-07T11:06:43.25
GU.CANO.HHN. ML:1 9.752619E-5 0.16 AML other m 2019-02-07T11:06:44.03
GU.CANO.HHE. ML:0.8 5.409137E-5 1.6608 AML other m 2019-02-07T11:06:44.00
GU.RORO.HHE. ML:0.8 2.7839938E-5 0.1792 AML other m 2019-02-07T11:06:47.56
GU.RORO.HHN. ML:0.6 2.2483605E-5 0.1216 AML other m 2019-02-07T11:06:47.58
GU.GBOS.HHE. ML:0.3 9.6017615E-6 0.3648 AML other m 2019-02-07T11:06:49.48
GU.GBOS.HHN. ML:0.6 1.977548E-5 1.0784 AML other m 2019-02-07T11:06:51.05
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