Earthquake (quarry blast) with magnitude of ML 0.6 on date 03-04-2023 and time 15:51:47 (UTC) in region 2 km W Cisano sul Neva (SV)

A magnitude ML 0.6 (quarry blast) earthquake occured in region: 2 km W Cisano sul Neva (SV), on

  • 03-04-2023 15:51:47 (UTC)
  • 03-04-2023 17:51:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0900, 8.1240 at 0 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
Cisano sul Neva SV 2 2085 2085
Arnasco SV 2 645 2730
Zuccarello SV 3 309 3039
Vendone SV 4 388 3427
Castelvecchio di Rocca Barbena SV 5 145 3572
Ortovero SV 5 1586 5158
Castelbianco SV 5 330 5488
Villanova d'Albenga SV 5 2657 8145
Erli SV 6 245 8390
Balestrino SV 6 595 8985
Onzo SV 6 219 9204
Garlenda SV 7 1254 10458
Toirano SV 8 2644 13102
Nasino SV 8 207 13309
Albenga SV 8 24213 37522
Casanova Lerrone SV 9 749 38271
Ceriale SV 9 5561 43832
Boissano SV 9 2492 46324
Ranzo IM 9 557 46881
Aquila d'Arroscia IM 9 166 47047
Alto CN 10 128 47175
Alassio SV 10 10934 58109
Borghetto Santo Spirito SV 10 4948 63057
Stellanello SV 11 808 63865
Bardineto SV 12 756 64621
Loano SV 12 11407 76028
Testico SV 12 196 76224
Borghetto d'Arroscia IM 12 456 76680
Laigueglia SV 13 1810 78490
Giustenice SV 14 977 79467
Vessalico IM 14 282 79749
Caprauna CN 14 104 79853
Villa Faraldi IM 14 444 80297
Garessio CN 14 3244 83541
Pietra Ligure SV 14 8992 92533
Andora SV 15 7552 100085
Cesio IM 15 283 100368
Tovo San Giacomo SV 15 2582 102950
Magliolo SV 15 974 103924
Calizzano SV 16 1475 105399
Borgio Verezzi SV 17 2205 107604
Chiusanico IM 17 607 108211
Armo IM 17 111 108322
Diano Arentino IM 17 722 109044
Caravonica IM 17 282 109326
Pieve di Teco IM 17 1338 110664
Chiusavecchia IM 18 577 111241
San Bartolomeo al Mare IM 18 3129 114370
Diano San Pietro IM 18 1145 115515
Cervo IM 18 1187 116702
Ormea CN 18 1617 118319
Lucinasco IM 19 272 118591
Pontedassio IM 19 2323 120914
Diano Castello IM 19 2214 123128
Calice Ligure SV 19 1730 124858
Rialto SV 19 564 125422
Borgomaro IM 19 865 126287
Priola CN 19 701 126988
Finale Ligure SV 20 11711 138699
Aurigo IM 20 347 139046

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Savona (61345 inhabitants)
40 Km NE of Sanremo (54807 inhabitants)
57 Km SE of Cuneo (56081 inhabitants)
74 Km W of Genova (586655 inhabitants)
90 Km S of Asti (76202 inhabitants)
100 Km SW of Alessandria (93943 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
Reviewed
Rev100
ML 0.6 2023-04-03
15:51:47
44.0897 8.1243 1 2023-04-03
16:52:55
Sala Sismica INGV-Roma 116030451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-03 15:51:47 ± 0.18
Latitude 44.0897 ± 0.0108
Longitude 8.1243 ± 0.0138
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type quarry blast
Origin ID 116030451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1490
Semi-minor axis of confidence ellipse (meter) 730
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 320
Circular confidence region, given by single value of horizontal uncertainty (meter) 1490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
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) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.28329
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:0.6

Field Value
Value 0.6
Uncertainty 0.0
Num. used stations 3
Type of magnitude ML
Reference to an origin 116030451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-03 16:52:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2023-04-03T15:51:53.03 0.3 undecidable manual P 307 28.2495 91 -0.21 72
IV.QLNO.HHZ. 2023-04-03T15:51:53.55 0.3 undecidable manual P 34 31.4463 91 -0.33 70
GU.IMI.HHZ. 2023-04-03T15:51:53.05 0.1 undecidable manual P 223 27.1506 91 0.03 100
GU.MGRO.HHZ. 2023-04-03T15:51:52.66 0.1 undecidable manual P 258 25.752 91 -0.08 99
GU.CANO.HHZ. 2023-04-03T15:51:51.00 0.1 undecidable manual P 34 15.873 92 0.23 98
GU.RORO.HHZ. 2023-04-03T15:51:48.85 0.1 undecidable manual P 299 5.2947 95 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RORO.HHE. ML:0.0 0.00013424069999999998 0.1408 AML other m 2023-04-03T15:51:50.25
GU.RORO.HHN. ML:0.0 0.00021598330000000002 0.1408 AML other m 2023-04-03T15:51:50.14
GU.CANO.HHN. ML:0.6 0.000043210355000000006 0.3584 AML other m 2023-04-03T15:51:53.54
GU.IMI.HHE. ML:0.5 0.00001829151845 0.1792 AML other m 2023-04-03T15:51:57.57
GU.IMI.HHN. ML:0.5 0.000022399425 0.1408 AML other m 2023-04-03T15:51:57.79
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