A magnitude ML 1.7 earthquake occured in region: 3 km W Urbe (SV), on
and geographic coordinates (lat, lon) 44.4930, 8.5600 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 |
---|---|---|---|---|
Urbe | SV | 3 | 700 | 700 |
Sassello | SV | 6 | 1777 | 2477 |
Tiglieto | GE | 6 | 546 | 3023 |
Pontinvrea | SV | 11 | 847 | 3870 |
Mioglia | SV | 12 | 526 | 4396 |
Rossiglione | GE | 12 | 2779 | 7175 |
Stella | SV | 12 | 3009 | 10184 |
Campo Ligure | GE | 12 | 2955 | 13139 |
Masone | GE | 12 | 3679 | 16818 |
Cassinelle | AL | 13 | 914 | 17732 |
Morbello | AL | 13 | 402 | 18134 |
Ponzone | AL | 13 | 1051 | 19185 |
Cogoleto | GE | 13 | 9172 | 28357 |
Malvicino | AL | 14 | 85 | 28442 |
Arenzano | GE | 14 | 11519 | 39961 |
Giusvalla | SV | 14 | 441 | 40402 |
Pareto | AL | 14 | 554 | 40956 |
Molare | AL | 15 | 2181 | 43137 |
Varazze | SV | 15 | 13251 | 56388 |
Cartosio | AL | 16 | 747 | 57135 |
Mele | GE | 16 | 2725 | 59860 |
Grognardo | AL | 16 | 259 | 60119 |
Cremolino | AL | 16 | 1086 | 61205 |
Celle Ligure | SV | 17 | 5237 | 66442 |
Prasco | AL | 17 | 521 | 66963 |
Belforte Monferrato | AL | 17 | 515 | 67478 |
Albisola Superiore | SV | 17 | 10163 | 77641 |
Ovada | AL | 18 | 11477 | 89118 |
Cavatore | AL | 18 | 291 | 89409 |
Montechiaro d'Acqui | AL | 18 | 560 | 89969 |
Tagliolo Monferrato | AL | 19 | 1581 | 91550 |
Spigno Monferrato | AL | 19 | 1050 | 92600 |
Albissola Marina | SV | 19 | 5487 | 98087 |
Trisobbio | AL | 19 | 655 | 98742 |
Morsasco | AL | 19 | 679 | 99421 |
Visone | AL | 19 | 1194 | 100615 |
Castelletto d'Erro | AL | 20 | 148 | 100763 |
Melazzo | AL | 20 | 1325 | 102088 |
Lerma | AL | 20 | 869 | 102957 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-10-20 05:07:06 |
44.4932 | 8.5602 | 8 | 2022-03-30 13:04:26 |
Bollettino Sismico Italiano INGV | 99286341 |
Reviewed Rev100 |
ML 1.6 | 2021-10-20 05:07:06 |
44.492 | 8.5632 | 8 | 2021-10-20 05:16:24 |
Sala Sismica INGV-Roma | 96786361 |
Field | Value |
---|---|
Time (UTC) | 2021-10-20 05:07:06 ± 0.12 |
Latitude | 44.4932 ± 0.0072 |
Longitude | 8.5602 ± 0.0101 |
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 | 99286341 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 842 |
Semi-minor axis of confidence ellipse (meter) | 754 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 348 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 840.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 115 |
Number of associated phases, regardless of their use for origin computation | 36 |
Number of defining phases | 23 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.41 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 1.02972 |
Number of stations at which the event was observed | 26 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 96786361 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-20 05:16:24 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.3 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 99286341 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-01-03 15:53:09 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARRO.EHZ. | 2021-10-20T05:09:03.13 | 3.0 | undecidable | manual | Sg | 14.5 | 0 | |||
IV.GRIS.EHZ. | 2021-10-20T05:08:53.52 | 3.0 | positive | manual | Pn | 0.05 | 0 | |||
IV.APEC.HHZ. | 2021-10-20T05:08:42.35 | 3.0 | undecidable | manual | Sg | 10.13 | 0 | |||
IV.RMP.HHZ. | 2021-10-20T05:08:20.01 | 3.0 | positive | manual | Pg | 10.03 | 0 | |||
CH.BERNI.HHZ. | 2021-10-20T05:08:17.07 | 3.0 | undecidable | manual | Sg | 4.25 | 0 | |||
IV.SRES.HHZ. | 2021-10-20T05:08:10.97 | 3.0 | negative | manual | Pg | 6.33 | 0 | |||
IV.MMUR.HNZ. | 2021-10-20T05:08:00.57 | 3.0 | undecidable | manual | Pn | -0.12 | 0 | |||
IV.VENL.EHZ. | 2021-10-20T05:08:00.42 | 3.0 | negative | manual | Pg | 6.89 | 0 | |||
IV.IMOL.HNZ. | 2021-10-20T05:07:47.22 | 3.0 | positive | manual | Pn | 1.51 | 0 | |||
IV.FIR.HHZ. | 2021-10-20T05:07:40.58 | 3.0 | undecidable | manual | Pn | -2.23 | 0 | |||
GU.PZZ.HHZ. | 2021-10-20T05:07:39.90 | 0.6 | undecidable | manual | S | 271 | 114.2967 | 50 | -0.49 | 38 |
IV.ZEN8.EHZ. | 2021-10-20T05:07:39.07 | 3.0 | undecidable | manual | Pn | -1.37 | 0 | |||
GU.BHB.HHZ. | 2021-10-20T05:07:38.40 | 0.3 | undecidable | manual | S | 291 | 109.113 | 50 | -0.62 | 55 |
IV.SARZ.HHE. | 2021-10-20T05:07:34.86 | 3.0 | undecidable | manual | S | 1.155 | 0 | |||
IV.SARZ.HHE. | 2021-10-20T05:07:29.95 | 3.0 | undecidable | manual | P | 1.36 | 0 | |||
GU.GBOS.HHZ. | 2021-10-20T05:07:26.03 | 0.3 | undecidable | manual | S | 244 | 63.5919 | 50 | -0.82 | 55 |
GU.PZZ.HHZ. | 2021-10-20T05:07:26.77 | 0.1 | undecidable | manual | P | 271 | 114.2967 | 50 | 0.57 | 74 |
GU.BHB.HHZ. | 2021-10-20T05:07:25.66 | 0.3 | undecidable | manual | P | 291 | 109.113 | 50 | 0.25 | 61 |
GU.STV.HHZ. | 2021-10-20T05:07:25.00 | 0.3 | undecidable | manual | P | 255 | 101.6205 | 50 | 0.75 | 53 |
FR.SAOF.HHZ.00 | 2021-10-20T05:07:24.82 | 0.3 | undecidable | manual | P | 235 | 97.8243 | 50 | 1.15 | 44 |
GU.RORO.HHZ. | 2021-10-20T05:07:24.80 | 0.3 | undecidable | manual | S | 223 | 57.5979 | 50 | -0.46 | 64 |
GU.IMI.HHZ. | 2021-10-20T05:07:22.21 | 0.3 | undecidable | manual | P | 220 | 83.6496 | 50 | 0.74 | 55 |
IV.MSSA.HHZ. | 2021-10-20T05:07:21.25 | 0.3 | undecidable | manual | P | 104 | 78.366 | 50 | 0.58 | 59 |
GU.ROTM.HHZ. | 2021-10-20T05:07:21.20 | 0.3 | undecidable | manual | S | 338 | 42.7239 | 50 | -0.1 | 71 |
GU.MGRO.HHZ. | 2021-10-20T05:07:20.90 | 0.3 | undecidable | manual | P | 230 | 77.8665 | 50 | 0.31 | 64 |
GU.CANO.HHZ. | 2021-10-20T05:07:20.00 | 0.3 | undecidable | manual | S | 219 | 40.7259 | 50 | -0.76 | 59 |
GU.GBOS.HHZ. | 2021-10-20T05:07:18.47 | 0.1 | undecidable | manual | P | 244 | 63.5919 | 50 | 0.08 | 92 |
GU.RORO.HHZ. | 2021-10-20T05:07:17.46 | 0.1 | undecidable | manual | P | 223 | 57.5979 | 50 | 0 | 94 |
GU.RNCA.HHZ. | 2021-10-20T05:07:17.50 | 0.3 | undecidable | manual | S | 94 | 31.0467 | 105 | -0.47 | 67 |
IV.QLNO.HHZ. | 2021-10-20T05:07:15.90 | 0.3 | undecidable | manual | S | 222 | 25.2525 | 108 | -0.15 | 73 |
GU.ROTM.HHZ. | 2021-10-20T05:07:15.16 | 0.3 | undecidable | manual | P | 338 | 42.7239 | 50 | -0.02 | 73 |
GU.CANO.HHZ. | 2021-10-20T05:07:14.80 | 0.1 | positive | manual | P | 219 | 40.7259 | 50 | -0.07 | 96 |
GU.RNCA.HHZ. | 2021-10-20T05:07:12.94 | 0.1 | undecidable | manual | P | 94 | 31.0467 | 105 | -0.32 | 93 |
IV.QLNO.HHZ. | 2021-10-20T05:07:12.37 | 0.1 | positive | manual | P | 222 | 25.2525 | 108 | 0.22 | 96 |
GU.PCP.HHZ. | 2021-10-20T05:07:10.00 | 0.1 | undecidable | manual | S | 348 | 5.4945 | 147 | -0.27 | 98 |
GU.PCP.HHZ. | 2021-10-20T05:07:08.99 | 0.1 | positive | manual | P | 348 | 5.4945 | 147 | 0.18 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.QLNO.HHN. | ML:1.2 | 0.0000878 | 0.58 | AML | other | m | 2021-10-20T05:07:16.78 |
IV.QLNO.HHE. | ML:1.4 | 0.00013350000000000002 | 0.74 | AML | other | m | 2021-10-20T05:07:17.50 |
GU.CANO.HHN. | ML:1.7 | 0.000176 | 0.18 | AML | other | m | 2021-10-20T05:07:20.88 |
GU.ROTM.HHE. | ML:2.2 | 0.0005385 | 0.58 | AML | other | m | 2021-10-20T05:07:21.45 |
GU.ROTM.HHN. | ML:2.2 | 0.000461 | 0.24 | AML | other | m | 2021-10-20T05:07:21.40 |
GU.CANO.HHE. | ML:1.8 | 0.000192 | 0.68 | AML | other | m | 2021-10-20T05:07:24.42 |
GU.RORO.HHN. | ML:1.5 | 0.00006254999999999999 | 0.16 | AML | other | m | 2021-10-20T05:07:25.59 |
GU.GBOS.HHN. | ML:1.4 | 0.0000505 | 1.82 | AML | other | m | 2021-10-20T05:07:25.05 |
GU.GBOS.HHE. | ML:1.1 | 0.0000252 | 1.16 | AML | other | m | 2021-10-20T05:07:29.68 |
IV.MSSA.HHE. | ML:1.8 | 0.00008645 | 0.1 | AML | other | m | 2021-10-20T05:07:32.74 |
GU.MGRO.HHE. | ML:1.5 | 0.0000486 | 1.52 | AML | other | m | 2021-10-20T05:07:34.89 |
GU.MGRO.HHN. | ML:1.6 | 0.00005660000000000001 | 0.84 | AML | other | m | 2021-10-20T05:07:34.65 |
IV.MSSA.HHN. | ML:1.5 | 0.000047350000000000006 | 0.86 | AML | other | m | 2021-10-20T05:07:34.50 |
FR.SAOF.HHN.00 | ML:1.6 | 0.0000426 | 0.8 | AML | other | m | 2021-10-20T05:07:38.40 |
FR.SAOF.HHE.00 | ML:1.6 | 0.00004435 | 0.32 | AML | other | m | 2021-10-20T05:07:38.68 |
GU.PZZ.HHE. | ML:1.9 | 0.00007039999999999999 | 0.46 | AML | other | m | 2021-10-20T05:07:41.85 |
GU.RORO.HHE. | ML:2.4 | 0.0005355 | 0.68 | AML | other | m | 2021-10-20T05:07:42.19 |
GU.PZZ.HHN. | ML:1.8 | 0.0000452 | 1.3 | AML | other | m | 2021-10-20T05:07:42.81 |