A magnitude ML 1.2 (quarry blast) earthquake occured in region: Costa Ligure centro occidentale (Savona), on
and geographic coordinates (lat, lon) 44.2300, 8.4240 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 |
---|---|---|---|---|
Spotorno | SV | 0 | 3803 | 3803 |
Noli | SV | 3 | 2736 | 6539 |
Bergeggi | SV | 3 | 1129 | 7668 |
Vado Ligure | SV | 5 | 8336 | 16004 |
Vezzi Portio | SV | 5 | 809 | 16813 |
Quiliano | SV | 7 | 7232 | 24045 |
Orco Feglino | SV | 8 | 890 | 24935 |
Finale Ligure | SV | 9 | 11711 | 36646 |
Savona | SV | 10 | 61345 | 97991 |
Calice Ligure | SV | 11 | 1730 | 99721 |
Rialto | SV | 12 | 564 | 100285 |
Borgio Verezzi | SV | 12 | 2205 | 102490 |
Mallare | SV | 12 | 1146 | 103636 |
Albissola Marina | SV | 13 | 5487 | 109123 |
Altare | SV | 13 | 2108 | 111231 |
Tovo San Giacomo | SV | 14 | 2582 | 113813 |
Albisola Superiore | SV | 14 | 10163 | 123976 |
Pietra Ligure | SV | 14 | 8992 | 132968 |
Magliolo | SV | 14 | 974 | 133942 |
Giustenice | SV | 15 | 977 | 134919 |
Celle Ligure | SV | 16 | 5237 | 140156 |
Bormida | SV | 16 | 387 | 140543 |
Pallare | SV | 16 | 923 | 141466 |
Loano | SV | 17 | 11407 | 152873 |
Carcare | SV | 18 | 5587 | 158460 |
Osiglia | SV | 19 | 444 | 158904 |
Varazze | SV | 19 | 13251 | 172155 |
Borghetto Santo Spirito | SV | 19 | 4948 | 177103 |
Boissano | SV | 19 | 2492 | 179595 |
Stella | SV | 20 | 3009 | 182604 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.2 | 2019-07-31 14:20:49 |
44.2295 | 8.4237 | 1 | 2019-11-13 14:31:02 |
Bollettino Sismico Italiano INGV | 72357201 |
Reviewed Rev100 |
ML 1.1 | 2019-07-31 14:20:50 |
44.2912 | 8.3342 | 11 | 2019-07-31 14:29:12 |
Sala Sismica INGV-Roma | 71061271 |
Field | Value |
---|---|
Time (UTC) | 2019-07-31 14:20:49 ± 0.23 |
Latitude | 44.2295 ± 0.0171 |
Longitude | 8.4237 ± 0.0176 |
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 | 72357201 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2090 |
Semi-minor axis of confidence ellipse (meter) | 1090 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 328 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2090.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 147 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.42 |
Epicentral distance of station closest to the epicenter (degree) | 0.10972 |
Epicentral distance of station farthest from the epicenter (degree) | 0.78781 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 72357201 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2019-09-13 08:12:44 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 71061271 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2019-07-31 14:29:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MSSA.HHE. | 2019-07-31T14:21:06.58 | 0.3 | undecidable | manual | P | 83 | 87.4458 | 50 | 0.47 | 61 |
IV.IMI.HHN. | 2019-07-31T14:21:00.49 | 0.3 | undecidable | manual | P | 230 | 55.1004 | 91 | -0.42 | 66 |
GU.RNCA.HHZ. | 2019-07-31T14:20:59.68 | 0.3 | undecidable | manual | P | 57 | 49.7169 | 91 | -0.14 | 71 |
GU.GBOS.HHE. | 2019-07-31T14:20:58.64 | 0.3 | undecidable | manual | P | 272 | 46.4202 | 91 | -0.52 | 65 |
GU.RORO.HHZ. | 2019-07-31T14:20:56.11 | 0.1 | undecidable | manual | P | 246 | 31.2465 | 91 | -0.02 | 100 |
GU.PCP.HHZ. | 2019-07-31T14:20:56.59 | 0.3 | undecidable | manual | P | 16 | 35.9418 | 91 | -0.47 | 68 |
GU.CANO.HHZ. | 2019-07-31T14:20:53.41 | 0.1 | positive | manual | P | 261 | 14.9739 | 92 | 0.54 | 92 |
IV.QLNO.HHZ. | 2019-07-31T14:20:52.59 | 0.1 | undecidable | manual | P | 330 | 12.1767 | 92 | 0.28 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.QLNO.HHN. | ML:0.9 | 0.00012716765 | 0.416 | AML | other | m | 2019-07-31T14:20:56.28 |
GU.CANO.HHE. | ML:1.6 | 0.00042720745 | 0.3008 | AML | other | m | 2019-07-31T14:20:56.43 |
IV.QLNO.HHE. | ML:1.4 | 0.00034894234999999994 | 0.416 | AML | other | m | 2019-07-31T14:20:56.51 |
GU.CANO.HHN. | ML:1.4 | 0.00032454815 | 0.32 | AML | other | m | 2019-07-31T14:20:56.73 |
GU.RORO.HHN. | ML:1.1 | 0.00006685954500000001 | 0.1792 | AML | other | m | 2019-07-31T14:21:00.44 |
GU.RORO.HHE. | ML:1.0 | 0.000055682529999999996 | 0.2624 | AML | other | m | 2019-07-31T14:21:00.46 |
GU.PCP.HHE. | ML:0.9 | 0.000031051080000000004 | 0.2368 | AML | other | m | 2019-07-31T14:21:01.23 |
GU.PCP.HHN. | ML:1.0 | 0.00003804014 | 0.3776 | AML | other | m | 2019-07-31T14:21:04.78 |