A magnitude ML 0.7 (quarry blast) earthquake occured in region: 1 km W Cisano sul Neva (SV), on
and geographic coordinates (lat, lon) 44.0930, 8.1330 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 | 1 | 2085 | 2085 |
Arnasco | SV | 3 | 645 | 2730 |
Zuccarello | SV | 3 | 309 | 3039 |
Castelvecchio di Rocca Barbena | SV | 4 | 145 | 3184 |
Balestrino | SV | 5 | 595 | 3779 |
Vendone | SV | 5 | 388 | 4167 |
Castelbianco | SV | 5 | 330 | 4497 |
Villanova d'Albenga | SV | 5 | 2657 | 7154 |
Erli | SV | 5 | 245 | 7399 |
Ortovero | SV | 5 | 1586 | 8985 |
Onzo | SV | 7 | 219 | 9204 |
Toirano | SV | 7 | 2644 | 11848 |
Garlenda | SV | 7 | 1254 | 13102 |
Ceriale | SV | 8 | 5561 | 18663 |
Albenga | SV | 8 | 24213 | 42876 |
Boissano | SV | 9 | 2492 | 45368 |
Nasino | SV | 9 | 207 | 45575 |
Borghetto Santo Spirito | SV | 9 | 4948 | 50523 |
Casanova Lerrone | SV | 10 | 749 | 51272 |
Alassio | SV | 10 | 10934 | 62206 |
Aquila d'Arroscia | IM | 10 | 166 | 62372 |
Ranzo | IM | 10 | 557 | 62929 |
Alto | CN | 10 | 128 | 63057 |
Loano | SV | 11 | 11407 | 74464 |
Bardineto | SV | 11 | 756 | 75220 |
Stellanello | SV | 12 | 808 | 76028 |
Testico | SV | 13 | 196 | 76224 |
Borghetto d'Arroscia | IM | 13 | 456 | 76680 |
Giustenice | SV | 13 | 977 | 77657 |
Laigueglia | SV | 13 | 1810 | 79467 |
Pietra Ligure | SV | 14 | 8992 | 88459 |
Garessio | CN | 14 | 3244 | 91703 |
Villa Faraldi | IM | 14 | 444 | 92147 |
Caprauna | CN | 14 | 104 | 92251 |
Tovo San Giacomo | SV | 14 | 2582 | 94833 |
Vessalico | IM | 15 | 282 | 95115 |
Magliolo | SV | 15 | 974 | 96089 |
Andora | SV | 15 | 7552 | 103641 |
Borgio Verezzi | SV | 16 | 2205 | 105846 |
Cesio | IM | 16 | 283 | 106129 |
Calizzano | SV | 16 | 1475 | 107604 |
Chiusanico | IM | 17 | 607 | 108211 |
Armo | IM | 17 | 111 | 108322 |
Diano Arentino | IM | 18 | 722 | 109044 |
Caravonica | IM | 18 | 282 | 109326 |
Pieve di Teco | IM | 18 | 1338 | 110664 |
Calice Ligure | SV | 18 | 1730 | 112394 |
Rialto | SV | 18 | 564 | 112958 |
Chiusavecchia | IM | 18 | 577 | 113535 |
San Bartolomeo al Mare | IM | 18 | 3129 | 116664 |
Diano San Pietro | IM | 19 | 1145 | 117809 |
Cervo | IM | 19 | 1187 | 118996 |
Ormea | CN | 19 | 1617 | 120613 |
Finale Ligure | SV | 19 | 11711 | 132324 |
Priola | CN | 19 | 701 | 133025 |
Lucinasco | IM | 19 | 272 | 133297 |
Pontedassio | IM | 19 | 2323 | 135620 |
Diano Castello | IM | 19 | 2214 | 137834 |
Borgomaro | IM | 20 | 865 | 138699 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.7 | 2021-11-18 15:50:15 |
44.0933 | 8.1328 | 1 | 2022-03-30 13:04:35 |
Bollettino Sismico Italiano INGV | 100714991 |
Reviewed Rev100 |
ML 0.7 | 2021-11-18 15:50:15 |
44.1113 | 8.1157 | 5 | 2021-11-18 15:55:36 |
Sala Sismica INGV-Roma | 97556241 |
Field | Value |
---|---|
Time (UTC) | 2021-11-18 15:50:15 ± 0.15 |
Latitude | 44.0933 ± 0.0090 |
Longitude | 8.1328 ± 0.0113 |
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 | 100714991 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1260 |
Semi-minor axis of confidence ellipse (meter) | 590 |
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) | 1260.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 190 |
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) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.05126 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27699 |
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 | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 97556241 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-11-18 15:55:36 |
Field | Value |
---|---|
Value | 0.7 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 100714991 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-02-07 15:48:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.QLNO.HHE. | 2021-11-18T15:50:21.19 | 0.3 | undecidable | manual | P | 33 | 30.747 | 91 | -0.28 | 70 |
GU.GBOS.HHZ. | 2021-11-18T15:50:20.85 | 0.3 | undecidable | manual | P | 305 | 28.5492 | 91 | -0.18 | 72 |
GU.MGRO.HHZ. | 2021-11-18T15:50:20.60 | 0.1 | undecidable | manual | P | 258 | 26.4513 | 91 | -0.02 | 99 |
GU.IMI.HHZ. | 2021-11-18T15:50:20.89 | 0.1 | undecidable | manual | P | 223 | 27.8499 | 91 | -0.01 | 99 |
GU.CANO.HHZ. | 2021-11-18T15:50:18.56 | 0.1 | undecidable | manual | P | 33 | 15.1737 | 92 | 0.21 | 97 |
GU.RORO.HHZ. | 2021-11-18T15:50:16.60 | 0.1 | undecidable | manual | P | 292 | 5.6943 | 95 | 0.15 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.CANO.HHN. | ML:0.7 | 0.00006007013 | 0.2304 | AML | other | m | 2021-11-18T15:50:21.29 |
GU.CANO.HHE. | ML:0.8 | 0.000073893925 | 0.4992 | AML | other | m | 2021-11-18T15:50:22.04 |
GU.IMI.HHE. | ML:0.6 | 0.000024988139999999998 | 0.2432 | AML | other | m | 2021-11-18T15:50:25.34 |
GU.MGRO.HHN. | ML:0.8 | 0.000039401459999999996 | 0.3456 | AML | other | m | 2021-11-18T15:50:25.84 |
GU.MGRO.HHE. | ML:0.8 | 0.0000341218515 | 0.2944 | AML | other | m | 2021-11-18T15:50:25.84 |
GU.IMI.HHN. | ML:0.6 | 0.000026214560000000002 | 0.2048 | AML | other | m | 2021-11-18T15:50:26.23 |