A magnitude ML 0.7 (quarry blast) earthquake occured in region: 2 km W Cisano sul Neva (SV), on
and geographic coordinates (lat, lon) 44.0930, 8.1280 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Cisano sul Neva | SV | 2 | 2085 | 2085 |
Arnasco | SV | 2 | 645 | 2730 |
Zuccarello | SV | 2 | 309 | 3039 |
Castelvecchio di Rocca Barbena | SV | 4 | 145 | 3184 |
Vendone | SV | 5 | 388 | 3572 |
Castelbianco | SV | 5 | 330 | 3902 |
Ortovero | SV | 5 | 1586 | 5488 |
Villanova d'Albenga | SV | 5 | 2657 | 8145 |
Balestrino | SV | 5 | 595 | 8740 |
Erli | SV | 5 | 245 | 8985 |
Onzo | SV | 7 | 219 | 9204 |
Garlenda | SV | 7 | 1254 | 10458 |
Toirano | SV | 8 | 2644 | 13102 |
Nasino | SV | 8 | 207 | 13309 |
Ceriale | SV | 8 | 5561 | 18870 |
Albenga | SV | 8 | 24213 | 43083 |
Boissano | SV | 9 | 2492 | 45575 |
Casanova Lerrone | SV | 9 | 749 | 46324 |
Ranzo | IM | 10 | 557 | 46881 |
Borghetto Santo Spirito | SV | 10 | 4948 | 51829 |
Aquila d'Arroscia | IM | 10 | 166 | 51995 |
Alto | CN | 10 | 128 | 52123 |
Alassio | SV | 10 | 10934 | 63057 |
Bardineto | SV | 11 | 756 | 63813 |
Loano | SV | 11 | 11407 | 75220 |
Stellanello | SV | 12 | 808 | 76028 |
Borghetto d'Arroscia | IM | 12 | 456 | 76484 |
Testico | SV | 12 | 196 | 76680 |
Giustenice | SV | 13 | 977 | 77657 |
Laigueglia | SV | 13 | 1810 | 79467 |
Caprauna | CN | 14 | 104 | 79571 |
Garessio | CN | 14 | 3244 | 82815 |
Pietra Ligure | SV | 14 | 8992 | 91807 |
Villa Faraldi | IM | 14 | 444 | 92251 |
Vessalico | IM | 14 | 282 | 92533 |
Tovo San Giacomo | SV | 15 | 2582 | 95115 |
Magliolo | SV | 15 | 974 | 96089 |
Andora | SV | 15 | 7552 | 103641 |
Cesio | IM | 15 | 283 | 103924 |
Calizzano | SV | 16 | 1475 | 105399 |
Borgio Verezzi | SV | 16 | 2205 | 107604 |
Armo | IM | 17 | 111 | 107715 |
Chiusanico | IM | 17 | 607 | 108322 |
Diano Arentino | IM | 17 | 722 | 109044 |
Caravonica | IM | 17 | 282 | 109326 |
Pieve di Teco | IM | 18 | 1338 | 110664 |
Chiusavecchia | IM | 18 | 577 | 111241 |
San Bartolomeo al Mare | IM | 18 | 3129 | 114370 |
Calice Ligure | SV | 18 | 1730 | 116100 |
Diano San Pietro | IM | 18 | 1145 | 117245 |
Ormea | CN | 18 | 1617 | 118862 |
Cervo | IM | 19 | 1187 | 120049 |
Rialto | SV | 19 | 564 | 120613 |
Lucinasco | IM | 19 | 272 | 120885 |
Priola | CN | 19 | 701 | 121586 |
Pontedassio | IM | 19 | 2323 | 123909 |
Diano Castello | IM | 19 | 2214 | 126123 |
Finale Ligure | SV | 19 | 11711 | 137834 |
Borgomaro | IM | 19 | 865 | 138699 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.7 | 2021-10-25 09:58:07 |
44.0927 | 8.1277 | 1 | 2022-03-30 13:04:37 |
Bollettino Sismico Italiano INGV | 101052611 |
Reviewed Rev100 |
ML 0.7 | 2021-10-25 09:58:07 |
44.1005 | 8.1093 | 4 | 2021-10-25 10:03:27 |
Sala Sismica INGV-Roma | 96977621 |
Field | Value |
---|---|
Time (UTC) | 2021-10-25 09:58:07 ± 0.25 |
Latitude | 44.0927 ± 0.0153 |
Longitude | 8.1277 ± 0.0188 |
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 | 101052611 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2050 |
Semi-minor axis of confidence ellipse (meter) | 1000 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 321 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2050.0 |
Confidence level of the uncertainty (%) | 68 |
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) | 0.32 |
Epicentral distance of station closest to the epicenter (degree) | 0.04766 |
Epicentral distance of station farthest from the epicenter (degree) | 0.53869 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.7 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 101052611 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-02-16 16:38:24 |
Field | Value |
---|---|
Value | 0.7 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 96977621 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-25 10:03:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.PCP.HHE. | 2021-10-25T09:58:18.88 | 0.3 | undecidable | manual | P | 34 | 59.7957 | 90 | -0.46 | 86 |
GU.GBOS.HHZ. | 2021-10-25T09:58:12.86 | 0.3 | undecidable | manual | P | 306 | 28.2495 | 91 | -0.16 | 97 |
GU.MGRO.HHZ. | 2021-10-25T09:58:12.51 | 0.3 | undecidable | manual | P | 258 | 26.0517 | 91 | -0.07 | 99 |
GU.IMI.HHZ. | 2021-10-25T09:58:12.89 | 0.3 | undecidable | manual | P | 223 | 27.5502 | 91 | 0.01 | 100 |
GU.CANO.HHZ. | 2021-10-25T09:58:10.88 | 0.3 | undecidable | manual | P | 34 | 15.4734 | 92 | 0.43 | 94 |
GU.RORO.HHZ. | 2021-10-25T09:58:08.64 | 0.3 | undecidable | manual | P | 294 | 5.2947 | 95 | 0.21 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.CANO.HHN. | ML:0.7 | 0.00005359095 | 0.3008 | AML | other | m | 2021-10-25T09:58:13.16 |
GU.IMI.HHN. | ML:0.6 | 0.000022893745 | 0.2368 | AML | other | m | 2021-10-25T09:58:17.82 |