A magnitude ML 0.5 (quarry blast) earthquake occured in region: 1 km NE Arnasco (SV), on
and geographic coordinates (lat, lon) 44.0900, 8.1130 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 |
---|---|---|---|---|
Arnasco | SV | 1 | 645 | 645 |
Zuccarello | SV | 3 | 309 | 954 |
Cisano sul Neva | SV | 3 | 2085 | 3039 |
Vendone | SV | 3 | 388 | 3427 |
Castelbianco | SV | 4 | 330 | 3757 |
Ortovero | SV | 4 | 1586 | 5343 |
Castelvecchio di Rocca Barbena | SV | 5 | 145 | 5488 |
Erli | SV | 5 | 245 | 5733 |
Onzo | SV | 5 | 219 | 5952 |
Villanova d'Albenga | SV | 5 | 2657 | 8609 |
Garlenda | SV | 6 | 1254 | 9863 |
Balestrino | SV | 6 | 595 | 10458 |
Nasino | SV | 7 | 207 | 10665 |
Casanova Lerrone | SV | 8 | 749 | 11414 |
Ranzo | IM | 9 | 557 | 11971 |
Aquila d'Arroscia | IM | 9 | 166 | 12137 |
Toirano | SV | 9 | 2644 | 14781 |
Alto | CN | 9 | 128 | 14909 |
Albenga | SV | 9 | 24213 | 39122 |
Ceriale | SV | 10 | 5561 | 44683 |
Boissano | SV | 10 | 2492 | 47175 |
Alassio | SV | 10 | 10934 | 58109 |
Stellanello | SV | 11 | 808 | 58917 |
Borghetto Santo Spirito | SV | 11 | 4948 | 63865 |
Borghetto d'Arroscia | IM | 11 | 456 | 64321 |
Testico | SV | 11 | 196 | 64517 |
Bardineto | SV | 12 | 756 | 65273 |
Loano | SV | 13 | 11407 | 76680 |
Caprauna | CN | 13 | 104 | 76784 |
Vessalico | IM | 13 | 282 | 77066 |
Laigueglia | SV | 13 | 1810 | 78876 |
Villa Faraldi | IM | 14 | 444 | 79320 |
Garessio | CN | 14 | 3244 | 82564 |
Giustenice | SV | 14 | 977 | 83541 |
Cesio | IM | 14 | 283 | 83824 |
Andora | SV | 15 | 7552 | 91376 |
Pietra Ligure | SV | 15 | 8992 | 100368 |
Armo | IM | 16 | 111 | 100479 |
Magliolo | SV | 16 | 974 | 101453 |
Tovo San Giacomo | SV | 16 | 2582 | 104035 |
Chiusanico | IM | 16 | 607 | 104642 |
Calizzano | SV | 16 | 1475 | 106117 |
Caravonica | IM | 16 | 282 | 106399 |
Pieve di Teco | IM | 16 | 1338 | 107737 |
Diano Arentino | IM | 17 | 722 | 108459 |
Chiusavecchia | IM | 17 | 577 | 109036 |
Borgio Verezzi | SV | 17 | 2205 | 111241 |
Ormea | CN | 17 | 1617 | 112858 |
San Bartolomeo al Mare | IM | 18 | 3129 | 115987 |
Diano San Pietro | IM | 18 | 1145 | 117132 |
Lucinasco | IM | 18 | 272 | 117404 |
Cervo | IM | 18 | 1187 | 118591 |
Pontedassio | IM | 18 | 2323 | 120914 |
Borgomaro | IM | 18 | 865 | 121779 |
Diano Castello | IM | 19 | 2214 | 123993 |
Priola | CN | 19 | 701 | 124694 |
Aurigo | IM | 19 | 347 | 125041 |
Calice Ligure | SV | 19 | 1730 | 126771 |
Pornassio | IM | 19 | 685 | 127456 |
Rialto | SV | 20 | 564 | 128020 |
Diano Marina | IM | 20 | 5977 | 133997 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.5 | 2022-01-31 10:48:00 |
44.0897 | 8.1133 | 1 | 2022-07-08 12:33:48 |
Bollettino Sismico Italiano INGV | 103572501 |
Reviewed Rev100 |
ML 0.5 | 2022-01-31 10:48:00 |
44.1073 | 8.1023 | 5 | 2022-01-31 10:52:46 |
Sala Sismica INGV-Roma | 100391451 |
Field | Value |
---|---|
Time (UTC) | 2022-01-31 10:48:00 ± 0.15 |
Latitude | 44.0897 ± 0.0072 |
Longitude | 8.1133 ± 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 | 103572501 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1040 |
Semi-minor axis of confidence ellipse (meter) | 640 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 309 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1040.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 185 |
Number of associated phases, regardless of their use for origin computation | 5 |
Number of defining phases | 5 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.04047 |
Epicentral distance of station farthest from the epicenter (degree) | 0.24821 |
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 | 12 |
Type of magnitude | ML |
Reference to an origin | 103572501 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-04-21 16:25:48 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 100391451 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2022-01-31 10:52:46 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.IMI.HHZ. | 2022-01-31T10:48:05.47 | 0.1 | undecidable | manual | P | 222 | 26.5512 | 91 | -0.01 | 99 |
GU.GBOS.HHZ. | 2022-01-31T10:48:05.44 | 0.3 | undecidable | manual | P | 308 | 27.5502 | 91 | -0.24 | 71 |
GU.MGRO.HHZ. | 2022-01-31T10:48:05.17 | 0.1 | undecidable | manual | P | 258 | 24.8529 | 91 | 0.02 | 99 |
GU.CANO.HHZ. | 2022-01-31T10:48:03.46 | 0.3 | undecidable | manual | P | 37 | 16.3725 | 92 | 0.01 | 76 |
GU.RORO.HHZ. | 2022-01-31T10:48:01.24 | 0.1 | undecidable | manual | P | 304 | 4.4955 | 96 | 0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.CANO.HHN. | ML:0.3 | 0.000021280322500000002 | 0.1408 | AML | other | m | 2022-01-31T10:48:06.19 |
GU.CANO.HHE. | ML:0.9 | 0.00008185297 | 1.52 | AML | other | m | 2022-01-31T10:48:06.14 |
GU.GBOS.HHN. | ML:0.2 | 0.000012020240349999999 | 0.0416 | AML | other | m | 2022-01-31T10:48:08.24 |
GU.MGRO.HHN. | ML:0.7 | 0.00003429091 | 0.6432 | AML | other | m | 2022-01-31T10:48:08.87 |
GU.MGRO.HHE. | ML:0.2 | 0.00001113469 | 0.7424 | AML | other | m | 2022-01-31T10:48:09.36 |
GU.IMI.HHE. | ML:0.5 | 0.000021542355 | 0.5408 | AML | other | m | 2022-01-31T10:48:09.09 |
GU.GBOS.HHE. | ML:0.4 | 0.000013739137 | 0.6816 | AML | other | m | 2022-01-31T10:48:09.82 |
GU.IMI.HHN. | ML:0.6 | 0.000022551784499999997 | 1.1008 | AML | other | m | 2022-01-31T10:48:09.77 |
GU.MGRO.HNN. | ML:0.7 | 0.00003726058999999999 | 0.944 | AML | other | m | 2022-01-31T10:48:10.08 |
GU.MGRO.HNE. | ML:0.7 | 0.0000293373315 | 0.0096 | AML | other | m | 2022-01-31T10:48:10.17 |
GU.ENR.HHE. | ML:0.6 | 0.000009986134 | 0.4416 | AML | other | m | 2022-01-31T10:48:13.59 |
GU.ENR.HHN. | ML:0.4 | 0.000007405306 | 0.2816 | AML | other | m | 2022-01-31T10:48:20.32 |