A magnitude ML 0.8 (quarry blast) earthquake occured in region: 2 km SE Borgo a Mozzano (LU), on
and geographic coordinates (lat, lon) 43.9630, 10.5570 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 |
---|---|---|---|---|
Borgo a Mozzano | LU | 2 | 6994 | 6994 |
Bagni di Lucca | LU | 6 | 6161 | 13155 |
Villa Basilica | LU | 8 | 1633 | 14788 |
Coreglia Antelminelli | LU | 12 | 5215 | 20003 |
Pescaglia | LU | 12 | 3526 | 23529 |
Pescia | PT | 13 | 19644 | 43173 |
Capannori | LU | 13 | 46252 | 89425 |
Barga | LU | 14 | 10034 | 99459 |
Lucca | LU | 14 | 89046 | 188505 |
Porcari | LU | 15 | 8845 | 197350 |
Gallicano | LU | 15 | 3807 | 201157 |
Uzzano | PT | 15 | 5770 | 206927 |
Montecarlo | LU | 15 | 4428 | 211355 |
Massa e Cozzile | PT | 16 | 7983 | 219338 |
Molazzana | LU | 17 | 1043 | 220381 |
Buggiano | PT | 17 | 8825 | 229206 |
Fabbriche di Vergemoli | LU | 17 | 768 | 229974 |
Marliana | PT | 17 | 3210 | 233184 |
Piteglio | PT | 18 | 1683 | 234867 |
Fosciandora | LU | 19 | 602 | 235469 |
Altopascio | LU | 19 | 15481 | 250950 |
Chiesina Uzzanese | PT | 19 | 4552 | 255502 |
Montecatini-Terme | PT | 19 | 20409 | 275911 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.8 | 2023-04-21 07:31:58 |
43.9633 | 10.5568 | 1 | 2024-03-01 17:18:20 |
Bollettino Sismico Italiano INGV | 125071951 |
Reviewed Rev100 |
ML 0.8 | 2023-04-21 07:31:58 |
43.9735 | 10.5308 | 1 | 2023-04-21 07:49:28 |
Sala Sismica INGV-Roma | 116565611 |
Field | Value |
---|---|
Time (UTC) | 2023-04-21 07:31:58 ± 0.25 |
Latitude | 43.9633 ± 0.0090 |
Longitude | 10.5568 ± 0.0300 |
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 | 125071951 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2430 |
Semi-minor axis of confidence ellipse (meter) | 940 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 275 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 169 |
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) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.06835 |
Epicentral distance of station farthest from the epicenter (degree) | 0.46765 |
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 | 0.8 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 125071951 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2024-02-06 13:55:43 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 116565611 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-21 07:49:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ERBM.EHZ. | 2023-04-21T07:32:07.84 | 0.3 | undecidable | manual | P | 347 | 51.9036 | 91 | -0.55 | 64 |
GU.SARM.EHZ. | 2023-04-21T07:32:03.68 | 0.3 | undecidable | manual | P | 333 | 27.4503 | 91 | 0.18 | 73 |
IV.PII.HHZ. | 2023-04-21T07:32:03.13 | 0.3 | undecidable | manual | P | 185 | 26.9508 | 91 | -0.26 | 72 |
MN.VLC.HNZ. | 2023-04-21T07:32:02.86 | 0.3 | undecidable | manual | P | 328 | 25.6521 | 91 | -0.28 | 72 |
IV.BDI.HHZ. | 2023-04-21T07:32:00.69 | 0.3 | undecidable | manual | P | 16 | 11.4774 | 92 | 0.39 | 72 |
GU.CARD.HHZ. | 2023-04-21T07:31:59.99 | 0.3 | undecidable | manual | P | 319 | 9.1797 | 93 | 0.15 | 76 |
GU.MAIM.HHZ. | 2023-04-21T07:31:59.74 | 0.1 | undecidable | manual | P | 223 | 7.5813 | 94 | 0.21 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.BDI.HHN. | ML:0.9 | 0.00013154985 | 0.5184 | AML | other | m | 2023-04-21T07:32:03.42 |
IV.BDI.HHE. | ML:0.8 | 0.000093430685 | 1.3984 | AML | other | m | 2023-04-21T07:32:04.16 |