Earthquake (quarry blast) with magnitude of ML 0.7 on date 20-03-2019 and time 15:26:17 (Italy) in region 2 km W Roccavignale (SV)

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

  • 20-03-2019 14:26:17 (UTC)
  • 20-03-2019 15:26:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.37, 8.17 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 2 752 752
Montezemolo CN 2 259 1011
Millesimo SV 3 3383 4394
Castelnuovo di Ceva CN 4 110 4504
Cengio SV 4 3563 8067
Saliceto CN 5 1323 9390
Cosseria SV 5 1105 10495
Murialdo SV 6 841 11336
Priero CN 6 529 11865
Plodio SV 6 650 12515
Camerana CN 6 631 13146
Sale delle Langhe CN 7 486 13632
Sale San Giovanni CN 8 183 13815
Perlo CN 8 116 13931
Cairo Montenotte SV 9 13269 27200
Nucetto CN 9 430 27630
Pallare SV 10 923 28553
Carcare SV 10 5587 34140
Osiglia SV 10 444 34584
Gottasecca CN 10 148 34732
Paroldo CN 10 211 34943
Ceva CN 11 5782 40725
Massimino SV 11 113 40838
Monesiglio CN 11 645 41483
Bormida SV 11 387 41870
Bagnasco CN 13 1035 42905
Mombarcaro CN 13 268 43173
Torresina CN 13 52 43225
Roascio CN 13 97 43322
Prunetto CN 13 451 43773
Mallare SV 14 1146 44919
Castelletto Uzzone CN 14 331 45250
Battifollo CN 14 219 45469
Dego SV 14 1985 47454
Altare SV 15 2108 49562
Igliano CN 15 74 49636
Scagnello CN 15 194 49830
Calizzano SV 16 1475 51305
Mombasiglio CN 16 609 51914
San Benedetto Belbo CN 16 179 52093
Gorzegno CN 16 304 52397
Castellino Tanaro CN 16 312 52709
Lesegno CN 16 794 53503
Murazzano CN 17 834 54337
Lisio CN 17 201 54538
Piana Crixia SV 17 788 55326
Marsaglia CN 17 245 55571
Niella Belbo CN 18 372 55943
Priola CN 18 701 56644
Viola CN 18 391 57035
Monasterolo Casotto CN 19 89 57124
Rialto SV 19 564 57688
Levice CN 19 231 57919
Pezzolo Valle Uzzone CN 19 344 58263
Rocca Cigliè CN 19 142 58405
Bonvicino CN 19 92 58497
Merana AL 19 189 58686
Bossolasco CN 20 679 59365
Bergolo CN 20 71 59436
Bardineto SV 20 756 60192
Feisoglio CN 20 316 60508

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Savona (61345 inhabitants)
49 Km E of Cuneo (56081 inhabitants)
59 Km S of Asti (76202 inhabitants)
61 Km W of Genova (586655 inhabitants)
68 Km NE of Sanremo (54807 inhabitants)
70 Km SW of Alessandria (93943 inhabitants)
80 Km SE of Moncalieri (57294 inhabitants)
87 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 0.7 2019-03-20
14:26:17
44.37 8.17 1 2019-08-22
08:25:11
Bollettino Sismico Italiano INGV 70826091
Reviewed
Rev100
ML 0.7 2019-03-20
14:26:17
44.34 8.2 11 2019-03-20
14:34:21
Sala Sismica INGV-Roma 66718991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 14:26:17 ± 0.18
Latitude 44.37 ± 0.01
Longitude 8.17 ± 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 70826091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1460
Semi-minor axis of confidence ellipse (meter) 860
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 330
Circular confidence region, given by single value of horizontal uncertainty (meter) 1460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.1349
Epicentral distance of station farthest from the epicenter (degree) 0.55488
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:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 70826091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-23 12:47:04

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 66718991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 14:34:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.ENR.HHZ. 2019-03-20T14:26:30.04 0.3 undecidable manual P 255 0.5549 50 -0.17 68
IV.IMI.HHN. 2019-03-20T14:26:28.60 0.3 undecidable manual P 203 0.5009 91 -0.48 65
GU.PCP.HHZ. 2019-03-20T14:26:24.91 0.1 undecidable manual P 57 0.3175 91 -0.1 97
GU.GBOS.HHZ. 2019-03-20T14:26:24.43 0.3 undecidable manual P 241 0.2689 91 0.51 67
GU.RORO.HHZ. 2019-03-20T14:26:23.88 0.1 undecidable manual P 196 0.2689 91 -0.05 99
GU.CANO.HHZ. 2019-03-20T14:26:21.83 0.1 undecidable manual P 163 0.17 92 0.09 100
IV.QLNO.HHZ. 2019-03-20T14:26:21.08 0.1 undecidable manual P 110 0.1349 92 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PCP.HHN. ML:0.8 2.9306905E-5 0.656 AML other m 2019-03-20T14:26:24.39
GU.CANO.HHN. ML:1 9.2810255E-5 0.1856 AML other m 2019-03-20T14:26:24.64
IV.QLNO.HHN. ML:0.7 6.2944125E-5 1.5968 AML other m 2019-03-20T14:26:25.94
IV.QLNO.HHE. ML:0.6 4.5568955E-5 0.4032 AML other m 2019-03-20T14:26:25.50
GU.CANO.HHE. ML:1.1 0.000108281045 0.736 AML other m 2019-03-20T14:26:26.34
GU.RORO.HHN. ML:0.6 2.18578065E-5 0.1408 AML other m 2019-03-20T14:26:28.18
GU.RORO.HHE. ML:0.6 2.11613085E-5 0.1216 AML other m 2019-03-20T14:26:28.11
GU.GBOS.HHE. ML:0.5 1.3392425E-5 1.2768 AML other m 2019-03-20T14:26:31.23
GU.GBOS.HHN. ML:0.7 2.5885895E-5 1.1232 AML other m 2019-03-20T14:26:32.85
GU.PCP.HHE. ML:0.6 1.5622999E-5 0.5376 AML other m 2019-03-20T14:26:35.42
GU.ENR.HHE. ML:0.7 1.088204E-5 0.0768 AML other m 2019-03-20T14:26:41.04
GU.ENR.HHN. ML:0.9 1.43705045E-5 0.256 AML other m 2019-03-20T14:26:49.28
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