A magnitude ML 0.8 earthquake occured in region: 4 km NE Massarosa (LU), on
and geographic coordinates (lat, lon) 43.9010, 10.3700 at 10 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 |
---|---|---|---|---|
Massarosa | LU | 4 | 22471 | 22471 |
Camaiore | LU | 7 | 32513 | 54984 |
Pescaglia | LU | 8 | 3526 | 58510 |
Viareggio | LU | 10 | 62467 | 120977 |
Lucca | LU | 12 | 89046 | 210023 |
Stazzema | LU | 12 | 3193 | 213216 |
Pietrasanta | LU | 13 | 24007 | 237223 |
Vecchiano | PI | 13 | 12189 | 249412 |
Seravezza | LU | 16 | 13073 | 262485 |
San Giuliano Terme | PI | 16 | 31399 | 293884 |
Borgo a Mozzano | LU | 17 | 6994 | 300878 |
Fabbriche di Vergemoli | LU | 17 | 768 | 301646 |
Forte dei Marmi | LU | 18 | 7510 | 309156 |
Capannori | LU | 18 | 46252 | 355408 |
Gallicano | LU | 19 | 3807 | 359215 |
Molazzana | LU | 20 | 1043 | 360258 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2023-07-15 23:30:43 |
43.9007 | 10.3697 | 10 | 2023-07-15 23:51:45 |
Sala Sismica INGV-Roma | 119298011 |
Field | Value |
---|---|
Time (UTC) | 2023-07-15 23:30:43 ± 0.21 |
Latitude | 43.9007 ± 0.0099 |
Longitude | 10.3697 ± 0.0175 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 119298011 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1347 |
Semi-minor axis of confidence ellipse (meter) | 1058 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 92 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1350.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 182 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.35 |
Epicentral distance of station closest to the epicenter (degree) | 0.08903 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31386 |
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 | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 119298011 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-07-15 23:51:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.EQUI.HHZ. | 2023-07-15T23:30:55.09 | 0.6 | undecidable | manual | S | 330 | 34.1436 | 50 | -0.65 | 43 |
GU.POPM.HHZ. | 2023-07-15T23:30:55.69 | 0.6 | undecidable | manual | S | 62 | 34.8429 | 50 | -0.23 | 48 |
IV.BDI.HHZ. | 2023-07-15T23:30:53.10 | 0.6 | undecidable | manual | S | 45 | 25.4523 | 111 | -0.3 | 48 |
MN.VLC.HHZ. | 2023-07-15T23:30:53.95 | 0.6 | undecidable | manual | S | 3 | 28.749 | 50 | -0.35 | 47 |
GU.POPM.HHZ. | 2023-07-15T23:30:51.15 | 0.1 | undecidable | manual | P | 62 | 34.8429 | 50 | 0.3 | 95 |
GU.EQUI.HHZ. | 2023-07-15T23:30:50.80 | 0.1 | undecidable | manual | P | 330 | 34.1436 | 50 | 0.05 | 100 |
GU.CARD.HHZ. | 2023-07-15T23:30:50.33 | 0.3 | undecidable | manual | S | 33 | 16.5723 | 121 | -0.28 | 74 |
MN.VLC.HHZ. | 2023-07-15T23:30:50.11 | 0.1 | undecidable | manual | P | 3 | 28.749 | 50 | 0.2 | 98 |
IV.BDI.HHZ. | 2023-07-15T23:30:49.95 | 0.1 | undecidable | manual | P | 45 | 25.4523 | 111 | 0.56 | 90 |
GU.MAIM.HHZ. | 2023-07-15T23:30:48.35 | 0.3 | undecidable | manual | S | 82 | 9.879 | 135 | -0.41 | 73 |
GU.CARD.HHZ. | 2023-07-15T23:30:48.02 | 0.1 | undecidable | manual | P | 33 | 16.5723 | 121 | 0.24 | 99 |
IV.PII.HHZ. | 2023-07-15T23:30:48.65 | 0.1 | undecidable | manual | P | 148 | 23.3544 | 113 | -0.36 | 96 |
GU.MAIM.HHZ. | 2023-07-15T23:30:46.98 | 0.1 | undecidable | manual | P | 82 | 9.879 | 135 | 0.26 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.MAIM.HHE. | ML:0.6 | 0.0000512 | 0.48 | AML | other | m | 2023-07-15T23:30:48.70 |
GU.MAIM.HHN. | ML:0.6 | 0.000054900000000000006 | 0.42 | AML | other | m | 2023-07-15T23:30:48.66 |
IV.PII.HHE. | ML:0.9 | 0.00005085 | 0.22 | AML | other | m | 2023-07-15T23:30:48.81 |
GU.CARD.HHE. | ML:1.0 | 0.0000872 | 0.22 | AML | other | m | 2023-07-15T23:30:50.52 |
GU.CARD.HHN. | ML:1.3 | 0.00016549999999999998 | 0.1 | AML | other | m | 2023-07-15T23:30:50.91 |
IV.PII.HHN. | ML:0.8 | 0.000037900000000000006 | 0.58 | AML | other | m | 2023-07-15T23:30:52.36 |
IV.BDI.HHE. | ML:0.7 | 0.000031549999999999994 | 0.18 | AML | other | m | 2023-07-15T23:30:53.23 |
IV.BDI.HHN. | ML:0.8 | 0.0000367 | 0.76 | AML | other | m | 2023-07-15T23:30:53.31 |