A magnitude ML 1.7 earthquake occured in region: 3 km SW Castelbianco (SV), on
and geographic coordinates (lat, lon) 44.0960, 8.0560 at 8 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
---|---|---|---|---|
Castelbianco | SV | 3 | 330 | 330 |
Onzo | SV | 3 | 219 | 549 |
Vendone | SV | 3 | 388 | 937 |
Nasino | SV | 3 | 207 | 1144 |
Aquila d'Arroscia | IM | 4 | 166 | 1310 |
Alto | CN | 4 | 128 | 1438 |
Arnasco | SV | 5 | 645 | 2083 |
Ranzo | IM | 5 | 557 | 2640 |
Zuccarello | SV | 5 | 309 | 2949 |
Ortovero | SV | 5 | 1586 | 4535 |
Erli | SV | 6 | 245 | 4780 |
Castelvecchio di Rocca Barbena | SV | 6 | 145 | 4925 |
Casanova Lerrone | SV | 7 | 749 | 5674 |
Borghetto d'Arroscia | IM | 7 | 456 | 6130 |
Cisano sul Neva | SV | 7 | 2085 | 8215 |
Garlenda | SV | 8 | 1254 | 9469 |
Caprauna | CN | 8 | 104 | 9573 |
Villanova d'Albenga | SV | 9 | 2657 | 12230 |
Vessalico | IM | 9 | 282 | 12512 |
Balestrino | SV | 10 | 595 | 13107 |
Testico | SV | 10 | 196 | 13303 |
Stellanello | SV | 11 | 808 | 14111 |
Armo | IM | 11 | 111 | 14222 |
Garessio | CN | 12 | 3244 | 17466 |
Cesio | IM | 12 | 283 | 17749 |
Bardineto | SV | 12 | 756 | 18505 |
Pieve di Teco | IM | 12 | 1338 | 19843 |
Toirano | SV | 13 | 2644 | 22487 |
Ormea | CN | 13 | 1617 | 24104 |
Alassio | SV | 14 | 10934 | 35038 |
Albenga | SV | 14 | 24213 | 59251 |
Caravonica | IM | 14 | 282 | 59533 |
Boissano | SV | 14 | 2492 | 62025 |
Ceriale | SV | 14 | 5561 | 67586 |
Chiusanico | IM | 15 | 607 | 68193 |
Villa Faraldi | IM | 15 | 444 | 68637 |
Pornassio | IM | 15 | 685 | 69322 |
Borghetto Santo Spirito | SV | 15 | 4948 | 74270 |
Chiusavecchia | IM | 15 | 577 | 74847 |
Laigueglia | SV | 16 | 1810 | 76657 |
Borgomaro | IM | 16 | 865 | 77522 |
Lucinasco | IM | 16 | 272 | 77794 |
Calizzano | SV | 16 | 1475 | 79269 |
Diano Arentino | IM | 16 | 722 | 79991 |
Aurigo | IM | 16 | 347 | 80338 |
Andora | SV | 17 | 7552 | 87890 |
Loano | SV | 17 | 11407 | 99297 |
Rezzo | IM | 17 | 366 | 99663 |
Priola | CN | 17 | 701 | 100364 |
Pontedassio | IM | 18 | 2323 | 102687 |
Giustenice | SV | 18 | 977 | 103664 |
Cosio d'Arroscia | IM | 18 | 221 | 103885 |
Diano San Pietro | IM | 18 | 1145 | 105030 |
Magliolo | SV | 19 | 974 | 106004 |
San Bartolomeo al Mare | IM | 19 | 3129 | 109133 |
Diano Castello | IM | 19 | 2214 | 111347 |
Pietra Ligure | SV | 19 | 8992 | 120339 |
Montegrosso Pian Latte | IM | 19 | 118 | 120457 |
Tovo San Giacomo | SV | 19 | 2582 | 123039 |
Cervo | IM | 20 | 1187 | 124226 |
Vasia | IM | 20 | 389 | 124615 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-02-18 17:22:48 |
44.096 | 8.0562 | 8 | 2021-07-12 16:55:03 |
Bollettino Sismico Italiano INGV | 88381511 |
Reviewed Rev100 |
ML 1.7 | 2021-02-18 17:22:48 |
44.0927 | 8.0532 | 9 | 2021-02-18 17:29:47 |
Sala Sismica INGV-Roma | 87281971 |
Field | Value |
---|---|
Time (UTC) | 2021-02-18 17:22:48 ± 0.12 |
Latitude | 44.0960 ± 0.0072 |
Longitude | 8.0562 ± 0.0088 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 88381511 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 890 |
Semi-minor axis of confidence ellipse (meter) | 446 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 146 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 890.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 153 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.36 |
Epicentral distance of station closest to the epicenter (degree) | 0.01799 |
Epicentral distance of station farthest from the epicenter (degree) | 0.93080 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 88381511 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-03-22 14:08:32 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 87281971 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-18 17:29:47 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.BHB.HHZ. | 2021-02-18T17:23:19.39 | 0.3 | undecidable | manual | S | 323 | 103.3188 | 50 | -0.06 | 65 |
GU.STV.HHE. | 2021-02-18T17:23:08.19 | 0.6 | undecidable | manual | S | 286 | 60.3951 | 50 | 0.19 | 46 |
GU.BHB.HHZ. | 2021-02-18T17:23:06.98 | 0.1 | undecidable | manual | P | 323 | 103.3188 | 50 | 0.47 | 80 |
GU.RNCA.HHE. | 2021-02-18T17:23:03.66 | 0.1 | undecidable | manual | P | 59 | 82.3509 | 50 | 0.37 | 85 |
FR.SAOF.HHZ.00 | 2021-02-18T17:23:02.22 | 0.3 | undecidable | manual | S | 253 | 41.9247 | 50 | -0.85 | 58 |
GU.STV.HHE. | 2021-02-18T17:23:00.25 | 0.6 | undecidable | manual | P | 286 | 60.3951 | 50 | 0.35 | 44 |
IV.QLNO.HHZ. | 2021-02-18T17:23:00.12 | 0.3 | undecidable | manual | S | 42 | 34.2435 | 50 | -0.9 | 57 |
GU.PCP.HHE. | 2021-02-18T17:23:00.43 | 0.1 | positive | manual | P | 38 | 62.8926 | 50 | 0.15 | 92 |
GU.GBOS.HHZ. | 2021-02-18T17:22:57.27 | 0.1 | undecidable | manual | S | 313 | 23.5542 | 110 | -0.26 | 97 |
FR.SAOF.HHZ.00 | 2021-02-18T17:22:57.16 | 0.1 | negative | manual | P | 253 | 41.9247 | 50 | 0.11 | 97 |
GU.IMI.HHZ. | 2021-02-18T17:22:57.42 | 0.3 | undecidable | manual | S | 212 | 24.3534 | 109 | -0.35 | 71 |
IV.QLNO.HHZ. | 2021-02-18T17:22:55.79 | 0.1 | positive | manual | P | 42 | 34.2435 | 50 | -0.08 | 99 |
GU.CANO.HHZ. | 2021-02-18T17:22:55.71 | 0.1 | undecidable | manual | S | 49 | 18.9699 | 114 | -0.33 | 96 |
GU.GBOS.HHZ. | 2021-02-18T17:22:54.14 | 0.1 | negative | manual | P | 313 | 23.5542 | 110 | 0.29 | 96 |
GU.IMI.HHZ. | 2021-02-18T17:22:54.15 | 0.1 | positive | manual | P | 212 | 24.3534 | 109 | 0.16 | 99 |
GU.CANO.HHZ. | 2021-02-18T17:22:53.29 | 0.1 | positive | manual | P | 49 | 18.9699 | 114 | 0.29 | 97 |
GU.RORO.HHE. | 2021-02-18T17:22:51.56 | 0.1 | undecidable | manual | S | 25 | 1.998 | 167 | -0.28 | 100 |
GU.RORO.HHE. | 2021-02-18T17:22:50.87 | 0.1 | negative | manual | P | 25 | 1.998 | 167 | 0.31 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.CANO.HHE. | ML:1.9 | 0.0006251649 | 0.1024 | AML | other | m | 2021-02-18T17:22:55.90 |
GU.CANO.HHN. | ML:1.9 | 0.00062039505 | 0.2432 | AML | other | m | 2021-02-18T17:22:56.93 |
GU.GBOS.HHE. | ML:1.4 | 0.00016127764999999999 | 0.1408 | AML | other | m | 2021-02-18T17:22:57.98 |
GU.GBOS.HHN. | ML:1.5 | 0.0001977401 | 0.3072 | AML | other | m | 2021-02-18T17:22:58.26 |
GU.IMI.HHN. | ML:1.9 | 0.0005191843 | 0.2048 | AML | other | m | 2021-02-18T17:22:58.39 |
GU.IMI.HHE. | ML:1.8 | 0.0004157329 | 0.3456 | AML | other | m | 2021-02-18T17:22:58.66 |
IV.QLNO.HHE. | ML:1.8 | 0.00026479505000000003 | 0.3328 | AML | other | m | 2021-02-18T17:23:00.34 |
IV.QLNO.HHN. | ML:1.6 | 0.00017069109999999998 | 0.1152 | AML | other | m | 2021-02-18T17:23:00.50 |
FR.SAOF.HHE.00 | ML:1.6 | 0.00012038352999999999 | 0.0512 | AML | other | m | 2021-02-18T17:23:03.44 |
FR.SAOF.HHN.00 | ML:1.5 | 0.00009861776 | 0.192 | AML | other | m | 2021-02-18T17:23:03.72 |
GU.BHB.HHN. | ML:1.8 | 0.00006575 | 0.18 | AML | other | m | 2021-02-18T17:23:21.10 |
GU.BHB.HHE. | ML:1.7 | 0.00005095 | 0.12 | AML | other | m | 2021-02-18T17:23:21.89 |