A magnitude ML 0.6 (quarry blast) earthquake occured in region: 1 km NW Cisano sul Neva (SV), on
and geographic coordinates (lat, lon) 44.0940, 8.1420 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 |
Zuccarello | SV | 3 | 309 | 2394 |
Arnasco | SV | 3 | 645 | 3039 |
Balestrino | SV | 5 | 595 | 3634 |
Castelvecchio di Rocca Barbena | SV | 5 | 145 | 3779 |
Villanova d'Albenga | SV | 5 | 2657 | 6436 |
Erli | SV | 6 | 245 | 6681 |
Vendone | SV | 6 | 388 | 7069 |
Castelbianco | SV | 6 | 330 | 7399 |
Ortovero | SV | 6 | 1586 | 8985 |
Toirano | SV | 7 | 2644 | 11629 |
Ceriale | SV | 7 | 5561 | 17190 |
Garlenda | SV | 8 | 1254 | 18444 |
Albenga | SV | 8 | 24213 | 42657 |
Onzo | SV | 8 | 219 | 42876 |
Boissano | SV | 8 | 2492 | 45368 |
Borghetto Santo Spirito | SV | 8 | 4948 | 50316 |
Nasino | SV | 9 | 207 | 50523 |
Alassio | SV | 10 | 10934 | 61457 |
Casanova Lerrone | SV | 10 | 749 | 62206 |
Loano | SV | 10 | 11407 | 73613 |
Ranzo | IM | 11 | 557 | 74170 |
Aquila d'Arroscia | IM | 11 | 166 | 74336 |
Alto | CN | 11 | 128 | 74464 |
Bardineto | SV | 11 | 756 | 75220 |
Giustenice | SV | 12 | 977 | 76197 |
Stellanello | SV | 12 | 808 | 77005 |
Pietra Ligure | SV | 13 | 8992 | 85997 |
Testico | SV | 13 | 196 | 86193 |
Laigueglia | SV | 13 | 1810 | 88003 |
Borghetto d'Arroscia | IM | 13 | 456 | 88459 |
Tovo San Giacomo | SV | 14 | 2582 | 91041 |
Magliolo | SV | 14 | 974 | 92015 |
Villa Faraldi | IM | 15 | 444 | 92459 |
Garessio | CN | 15 | 3244 | 95703 |
Andora | SV | 15 | 7552 | 103255 |
Borgio Verezzi | SV | 15 | 2205 | 105460 |
Caprauna | CN | 15 | 104 | 105564 |
Vessalico | IM | 15 | 282 | 105846 |
Calizzano | SV | 16 | 1475 | 107321 |
Cesio | IM | 16 | 283 | 107604 |
Calice Ligure | SV | 18 | 1730 | 109334 |
Rialto | SV | 18 | 564 | 109898 |
Diano Arentino | IM | 18 | 722 | 110620 |
Chiusanico | IM | 18 | 607 | 111227 |
Armo | IM | 18 | 111 | 111338 |
Finale Ligure | SV | 18 | 11711 | 123049 |
Caravonica | IM | 18 | 282 | 123331 |
San Bartolomeo al Mare | IM | 19 | 3129 | 126460 |
Cervo | IM | 19 | 1187 | 127647 |
Pieve di Teco | IM | 19 | 1338 | 128985 |
Chiusavecchia | IM | 19 | 577 | 129562 |
Diano San Pietro | IM | 19 | 1145 | 130707 |
Ormea | CN | 19 | 1617 | 132324 |
Priola | CN | 20 | 701 | 133025 |
Diano Castello | IM | 20 | 2214 | 135239 |
Pontedassio | IM | 20 | 2323 | 137562 |
Lucinasco | IM | 20 | 272 | 137834 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.6 | 2021-02-24 15:37:27 |
44.0937 | 8.1423 | 1 | 2021-07-12 16:55:17 |
Bollettino Sismico Italiano INGV | 92262141 |
Reviewed Rev100 |
ML 0.6 | 2021-02-24 15:37:27 |
44.109 | 8.1152 | 6 | 2021-02-24 15:44:12 |
Sala Sismica INGV-Roma | 87454771 |
Field | Value |
---|---|
Time (UTC) | 2021-02-24 15:37:27 ± 0.33 |
Latitude | 44.0937 ± 0.0216 |
Longitude | 8.1423 ± 0.0263 |
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 | 92262141 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2970 |
Semi-minor axis of confidence ellipse (meter) | 1270 |
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) | 2970.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 191 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.48 |
Epicentral distance of station closest to the epicenter (degree) | 0.05756 |
Epicentral distance of station farthest from the epicenter (degree) | 0.53240 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.6 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 92262141 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-07-05 10:31:12 |
Field | Value |
---|---|
Value | 0.6 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 87454771 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-24 15:44:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.PCP.HHN. | 2021-02-24T15:37:38.24 | 0.3 | undecidable | manual | P | 33 | 59.0964 | 90 | -0.97 | 53 |
FR.SAOF.HHE.00 | 2021-02-24T15:37:36.66 | 0.3 | undecidable | manual | P | 256 | 48.5181 | 91 | -0.42 | 67 |
GU.GBOS.HHZ. | 2021-02-24T15:37:33.07 | 0.3 | undecidable | manual | P | 304 | 29.1486 | 91 | -0.14 | 74 |
IV.QLNO.HHZ. | 2021-02-24T15:37:33.45 | 0.3 | undecidable | manual | P | 32 | 30.2475 | 91 | 0.01 | 76 |
GU.IMI.HHZ. | 2021-02-24T15:37:33.20 | 0.1 | undecidable | manual | P | 224 | 28.4493 | 91 | 0.14 | 99 |
GU.CANO.HHZ. | 2021-02-24T15:37:30.85 | 0.1 | undecidable | manual | P | 31 | 14.6742 | 92 | 0.53 | 92 |
GU.RORO.HHE. | 2021-02-24T15:37:28.91 | 0.1 | undecidable | manual | P | 289 | 6.3936 | 94 | 0.26 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.CANO.HHE. | ML:0.8 | 0.000083736065 | 0.3072 | AML | other | m | 2021-02-24T15:37:33.43 |
GU.CANO.HHN. | ML:0.8 | 0.00008735 | 0.24 | AML | other | m | 2021-02-24T15:37:33.84 |
GU.GBOS.HHN. | ML:0.3 | 0.000010003904 | 0.1152 | AML | other | m | 2021-02-24T15:37:37.19 |
GU.GBOS.HHE. | ML:0.3 | 0.0000085998445 | 0.1024 | AML | other | m | 2021-02-24T15:37:37.47 |
IV.QLNO.HHN. | ML:0.3 | 0.00001206378 | 0.128 | AML | other | m | 2021-02-24T15:37:38.21 |
GU.IMI.HHE. | ML:0.8 | 0.0000331198835 | 0.2432 | AML | other | m | 2021-02-24T15:37:38.49 |
GU.IMI.HHN. | ML:1.0 | 0.000047503825 | 0.2816 | AML | other | m | 2021-02-24T15:37:38.82 |
IV.QLNO.HHE. | ML:0.5 | 0.000013006749999999999 | 0.1536 | AML | other | m | 2021-02-24T15:37:39.65 |