Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 0.7 on date 03-07-2019 and time 14:13:19 (Italy) in region 4 km NE Carcare (SV)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 4 km NE Carcare (SV), on

  • 03-07-2019 12:13:19 (UTC)
  • 03-07-2019 14:13:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3820, 8.3340 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Carcare SV 4 5587 5587
Cairo Montenotte SV 5 13269 18856
Altare SV 5 2108 20964
Pallare SV 8 923 21887
Plodio SV 8 650 22537
Dego SV 8 1985 24522
Cosseria SV 8 1105 25627
Giusvalla SV 9 441 26068
Cengio SV 10 3563 29631
Millesimo SV 10 3383 33014
Mallare SV 10 1146 34160
Pontinvrea SV 11 847 35007
Roccavignale SV 11 752 35759
Quiliano SV 12 7232 42991
Piana Crixia SV 12 788 43779
Stella SV 13 3009 46788
Mioglia SV 14 526 47314
Saliceto CN 14 1323 48637
Bormida SV 14 387 49024
Savona SV 14 61345 110369
Albissola Marina SV 15 5487 115856
Vado Ligure SV 15 8336 124192
Albisola Superiore SV 15 10163 134355
Montezemolo CN 15 259 134614
Osiglia SV 15 444 135058
Merana AL 15 189 135247
Murialdo SV 15 841 136088
Pareto AL 16 554 136642
Camerana CN 16 631 137273
Gottasecca CN 16 148 137421
Castelnuovo di Ceva CN 16 110 137531
Sassello SV 17 1777 139308
Castelletto Uzzone CN 17 331 139639
Vezzi Portio SV 17 809 140448
Bergeggi SV 17 1129 141577
Celle Ligure SV 18 5237 146814
Spigno Monferrato AL 18 1050 147864
Orco Feglino SV 18 890 148754
Spotorno SV 19 3803 152557
Rialto SV 19 564 153121
Priero CN 19 529 153650
Prunetto CN 19 451 154101
Varazze SV 20 13251 167352
Monesiglio CN 20 645 167997
Calice Ligure SV 20 1730 169727
Sale delle Langhe CN 20 486 170213
Serole AT 20 123 170336

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Savona (61345 inhabitants)
48 Km W of Genova (586655 inhabitants)
59 Km S of Asti (76202 inhabitants)
62 Km E of Cuneo (56081 inhabitants)
63 Km SW of Alessandria (93943 inhabitants)
76 Km NE of Sanremo (54807 inhabitants)
86 Km SE of Moncalieri (57294 inhabitants)
93 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 2019-07-03
12:13:19		 44.3823 8.3335 1 2019-11-13
14:31:01		 Bollettino Sismico Italiano INGV 72312741
Reviewed
Rev100 		ML 0.7 2019-07-03
12:13:19		 44.394 8.2968 2 2019-07-03
12:31:51		 Sala Sismica INGV-Roma 70160031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-03 12:13:19 ± 0.09
Latitude 44.3823 ± 0.0063
Longitude 8.3335 ± 0.0101
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 72312741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 910
Semi-minor axis of confidence ellipse (meter) 480
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 308
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
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) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.38041
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:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 72312741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-11 12:48:41

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 70160031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-03 12:31:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2019-07-03T12:13:28.24 0.1 undecidable manual P 248 42.2244 91 0.1 94
GU.RORO.HHE. 2019-07-03T12:13:26.83 0.3 undecidable manual P 215 36.741 91 -0.22 69
GU.PCP.HHZ. 2019-07-03T12:13:24.54 0.1 undecidable manual P 43 24.3534 91 -0.02 98
GU.CANO.HHZ. 2019-07-03T12:13:23.85 0.1 undecidable manual P 202 20.868 91 -0.01 99
IV.QLNO.HHZ. 2019-07-03T12:13:21.08 0.1 undecidable manual P 171 6.4935 94 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHN. ML:1.0 0.0001795 1.44 AML other m 2019-07-03T12:13:22.09
IV.QLNO.HHE. ML:1.1 0.00022149999999999996 1.5 AML other m 2019-07-03T12:13:23.78
GU.CANO.HHN. ML:0.6 0.000029650000000000002 0.52 AML other m 2019-07-03T12:13:24.10
GU.CANO.HHE. ML:0.8 0.0000504 0.68 AML other m 2019-07-03T12:13:29.56
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