A magnitude ML 0.5 (quarry blast) earthquake occured in region: 2 km W Cisano sul Neva (SV), on
and geographic coordinates (lat, lon) 44.0810, 8.1280 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Cisano sul Neva | SV | 2 | 2085 | 2085 |
Arnasco | SV | 2 | 645 | 2730 |
Zuccarello | SV | 4 | 309 | 3039 |
Villanova d'Albenga | SV | 4 | 2657 | 5696 |
Ortovero | SV | 4 | 1586 | 7282 |
Vendone | SV | 4 | 388 | 7670 |
Castelbianco | SV | 6 | 330 | 8000 |
Garlenda | SV | 6 | 1254 | 9254 |
Castelvecchio di Rocca Barbena | SV | 6 | 145 | 9399 |
Onzo | SV | 6 | 219 | 9618 |
Balestrino | SV | 6 | 595 | 10213 |
Erli | SV | 7 | 245 | 10458 |
Albenga | SV | 8 | 24213 | 34671 |
Toirano | SV | 8 | 2644 | 37315 |
Casanova Lerrone | SV | 8 | 749 | 38064 |
Ceriale | SV | 9 | 5561 | 43625 |
Nasino | SV | 9 | 207 | 43832 |
Alassio | SV | 9 | 10934 | 54766 |
Ranzo | IM | 9 | 557 | 55323 |
Boissano | SV | 10 | 2492 | 57815 |
Aquila d'Arroscia | IM | 10 | 166 | 57981 |
Borghetto Santo Spirito | SV | 10 | 4948 | 62929 |
Stellanello | SV | 10 | 808 | 63737 |
Alto | CN | 10 | 128 | 63865 |
Testico | SV | 11 | 196 | 64061 |
Loano | SV | 12 | 11407 | 75468 |
Borghetto d'Arroscia | IM | 12 | 456 | 75924 |
Laigueglia | SV | 12 | 1810 | 77734 |
Bardineto | SV | 13 | 756 | 78490 |
Villa Faraldi | IM | 13 | 444 | 78934 |
Andora | SV | 14 | 7552 | 86486 |
Vessalico | IM | 14 | 282 | 86768 |
Giustenice | SV | 14 | 977 | 87745 |
Caprauna | CN | 14 | 104 | 87849 |
Cesio | IM | 15 | 283 | 88132 |
Pietra Ligure | SV | 15 | 8992 | 97124 |
Garessio | CN | 15 | 3244 | 100368 |
Tovo San Giacomo | SV | 16 | 2582 | 102950 |
Magliolo | SV | 16 | 974 | 103924 |
Chiusanico | IM | 16 | 607 | 104531 |
Diano Arentino | IM | 16 | 722 | 105253 |
Caravonica | IM | 17 | 282 | 105535 |
Borgio Verezzi | SV | 17 | 2205 | 107740 |
Chiusavecchia | IM | 17 | 577 | 108317 |
San Bartolomeo al Mare | IM | 17 | 3129 | 111446 |
Armo | IM | 17 | 111 | 111557 |
Diano San Pietro | IM | 17 | 1145 | 112702 |
Cervo | IM | 17 | 1187 | 113889 |
Pieve di Teco | IM | 17 | 1338 | 115227 |
Calizzano | SV | 17 | 1475 | 116702 |
Pontedassio | IM | 18 | 2323 | 119025 |
Diano Castello | IM | 18 | 2214 | 121239 |
Lucinasco | IM | 18 | 272 | 121511 |
Borgomaro | IM | 19 | 865 | 122376 |
Ormea | CN | 19 | 1617 | 123993 |
Diano Marina | IM | 19 | 5977 | 129970 |
Calice Ligure | SV | 19 | 1730 | 131700 |
Rialto | SV | 20 | 564 | 132264 |
Aurigo | IM | 20 | 347 | 132611 |
Finale Ligure | SV | 20 | 11711 | 144322 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-08-22 08:48:08 |
44.081 | 8.1283 | 1 | 2023-08-22 09:11:27 |
Sala Sismica INGV-Roma | 120377811 |
Field | Value |
---|---|
Time (UTC) | 2023-08-22 08:48:08 ± 0.16 |
Latitude | 44.0810 ± 0.0099 |
Longitude | 8.1283 ± 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 | 120377811 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1380 |
Semi-minor axis of confidence ellipse (meter) | 660 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 317 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1380.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 192 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 5 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.05396 |
Epicentral distance of station farthest from the epicenter (degree) | 0.28868 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 120377811 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-08-22 09:11:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.QLNO.HHZ. | 2023-08-22T08:48:19.74 | 3.0 | undecidable | manual | S | 33 | 32.0457 | 91 | -0.37 | 0 |
GU.IMI.HHZ. | 2023-08-22T08:48:18.21 | 3.0 | undecidable | manual | S | 225 | 26.6511 | 91 | -0.01 | 0 |
GU.MGRO.HHZ. | 2023-08-22T08:48:18.47 | 3.0 | undecidable | manual | S | 261 | 25.8519 | 91 | 0.51 | 0 |
IV.QLNO.HHZ. | 2023-08-22T08:48:15.12 | 0.6 | undecidable | manual | P | 33 | 32.0457 | 91 | -0.28 | 46 |
GU.CANO.HHZ. | 2023-08-22T08:48:14.54 | 3.0 | undecidable | manual | S | 32 | 16.4724 | 92 | -0.17 | 0 |
GU.IMI.HHZ. | 2023-08-22T08:48:14.38 | 0.3 | undecidable | manual | P | 225 | 26.6511 | 91 | 0.06 | 72 |
GU.MGRO.HHZ. | 2023-08-22T08:48:13.99 | 0.6 | undecidable | manual | P | 261 | 25.8519 | 91 | -0.17 | 47 |
GU.CANO.HHZ. | 2023-08-22T08:48:12.45 | 0.3 | undecidable | manual | P | 32 | 16.4724 | 92 | 0.16 | 72 |
GU.RORO.HHZ. | 2023-08-22T08:48:11.07 | 3.0 | undecidable | manual | S | 305 | 5.994 | 95 | -0.01 | 0 |
GU.RORO.HHZ. | 2023-08-22T08:48:10.24 | 0.1 | undecidable | manual | P | 305 | 5.994 | 95 | 0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.MGRO.HHE. | ML:0.4 | 0.000014280982500000001 | 0.1984 | AML | other | m | 2023-08-22T08:48:18.62 |
GU.CANO.HHN. | ML:0.7 | 0.00005 | 0.32 | AML | other | m | 2023-08-22T08:48:14.77 |
GU.CANO.HHE. | ML:0.8 | 0.00006429999999999999 | 0.34 | AML | other | m | 2023-08-22T08:48:15.33 |
GU.MGRO.HHN. | ML:0.5 | 0.000019999999999999998 | 1.26 | AML | other | m | 2023-08-22T08:48:21.86 |
GU.IMI.HHE. | ML:0.4 | 0.00001462598 | 0.4352 | AML | other | m | 2023-08-22T08:48:19.04 |
GU.IMI.HHN. | ML:0.4 | 0.000014334155 | 0.2816 | AML | other | m | 2023-08-22T08:48:18.95 |