Earthquake (quarry blast) with magnitude of ML 0.7 on date 03-07-2019 and time 12:13:19 (UTC) in region 2 km E Cairo Montenotte (SV)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 2 km E Cairo Montenotte (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) 44.39, 8.3 at 2 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Cairo Montenotte SV 2 13269 13269
Carcare SV 4 5587 18856
Cosseria SV 6 1105 19961
Plodio SV 6 650 20611
Dego SV 6 1985 22596
Cengio SV 7 3563 26159
Altare SV 8 2108 28267
Pallare SV 8 923 29190
Millesimo SV 8 3383 32573
Roccavignale SV 9 752 33325
Giusvalla SV 10 441 33766
Piana Crixia SV 10 788 34554
Saliceto CN 11 1323 35877
Mallare SV 11 1146 37023
Pontinvrea SV 12 847 37870
Montezemolo CN 12 259 38129
Gottasecca CN 13 148 38277
Camerana CN 13 631 38908
Bormida SV 14 387 39295
Murialdo SV 14 841 40136
Merana AL 14 189 40325
Castelnuovo di Ceva CN 14 110 40435
Castelletto Uzzone CN 14 331 40766
Mioglia SV 14 526 41292
Quiliano SV 14 7232 48524
Osiglia SV 15 444 48968
Pareto AL 15 554 49522
Stella SV 16 3009 52531
Prunetto CN 16 451 52982
Monesiglio CN 16 645 53627
Priero CN 16 529 54156
Sale delle Langhe CN 17 486 54642
Spigno Monferrato AL 17 1050 55692
Sale San Giovanni CN 17 183 55875
Savona SV 18 61345 117220
Vado Ligure SV 18 8336 125556
Albissola Marina SV 18 5487 131043
Perlo CN 18 116 131159
Serole AT 18 123 131282
Sassello SV 18 1777 133059
Albisola Superiore SV 18 10163 143222
Pezzolo Valle Uzzone CN 18 344 143566
Paroldo CN 18 211 143777
Gorzegno CN 18 304 144081
Mombarcaro CN 19 268 144349
Vezzi Portio SV 19 809 145158
Rialto SV 19 564 145722
Orco Feglino SV 19 890 146612
Bergolo CN 19 71 146683
Levice CN 20 231 146914
Nucetto CN 20 430 147344
Mombaldone AT 20 209 147553
Bergeggi SV 20 1129 148682

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Savona (61345 inhabitants)
51 Km W of Genova (586655 inhabitants)
57 Km S of Asti (76202 inhabitants)
59 Km E of Cuneo (56081 inhabitants)
63 Km SW of Alessandria (93943 inhabitants)
76 Km NE of Sanremo (54807 inhabitants)
83 Km SE of Moncalieri (57294 inhabitants)
90 Km SE of Torino (890529 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.7 2019-07-03
12:13:19
44.39 8.3 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 ± 0.36
Latitude 44.39 ± 0.02
Longitude 8.30 ± 0.03
Depth (km) 2 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type quarry blast
Origin ID 70160031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2385
Semi-minor axis of confidence ellipse (meter) 2023
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 130
Circular confidence region, given by single value of horizontal uncertainty (meter) 2380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 1.00274
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

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 Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2019-07-03T12:13:39.60 0.1 undecidable manual P 36 1.0027 50 0.64 72
IV.SARZ.HHZ. 2019-07-03T12:13:31.91 0.3 undecidable manual P 43 0.6448 50 -0.92 52
GU.PCP.HHZ. 2019-07-03T12:13:27.83 0.3 undecidable manual S 50 0.2302 94 -0.22 72
GU.RORO.HHE. 2019-07-03T12:13:26.79 3.0 undecidable manual S 210 0.3265 93 -4.96 0
GU.CANO.HHZ. 2019-07-03T12:13:26.70 0.3 undecidable manual S 193 0.1916 94 0.15 73
GU.RORO.HHE. 2019-07-03T12:13:25.80 0.1 undecidable manual P 210 0.3265 93 -0.63 84
GU.PCP.HHZ. 2019-07-03T12:13:24.54 0.1 undecidable manual P 50 0.2302 94 0.24 95
GU.CANO.HHZ. 2019-07-03T12:13:23.85 0.1 undecidable manual P 193 0.1916 94 0.42 92
IV.QLNO.HHZ. 2019-07-03T12:13:22.00 0.3 undecidable manual S 153 0.0782 100 -0.22 74
IV.QLNO.HHZ. 2019-07-03T12:13:21.08 0.1 undecidable manual P 153 0.0782 100 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHN. ML:0 0.0001795 1.44 AML other m 2019-07-03T12:13:22.09
IV.QLNO.HHE. ML:0 0.0002215 1.5 AML other m 2019-07-03T12:13:23.78
GU.CANO.HHN. ML:0.6 2.965E-5 0.52 AML other m 2019-07-03T12:13:24.10
GU.CANO.HHE. ML:0.8 5.04E-5 0.68 AML other m 2019-07-03T12:13:29.56
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