A magnitude ML 1.0 earthquake occured in region: 5 km NW Vecchiano (PI), on
and geographic coordinates (lat, lon) 43.8230, 10.3600 at 11 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 |
---|---|---|---|---|
Vecchiano | PI | 5 | 12189 | 12189 |
Massarosa | LU | 5 | 22471 | 34660 |
San Giuliano Terme | PI | 9 | 31399 | 66059 |
Viareggio | LU | 10 | 62467 | 128526 |
Lucca | LU | 12 | 89046 | 217572 |
Pisa | PI | 12 | 89158 | 306730 |
Camaiore | LU | 14 | 32513 | 339243 |
Calci | PI | 17 | 6426 | 345669 |
Pescaglia | LU | 17 | 3526 | 349195 |
Capannori | LU | 18 | 46252 | 395447 |
Pietrasanta | LU | 19 | 24007 | 419454 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-09-15 10:30:37 |
43.8232 | 10.3602 | 11 | 2021-09-15 10:35:40 |
Sala Sismica INGV-Roma | 95459231 |
Field | Value |
---|---|
Time (UTC) | 2021-09-15 10:30:37 ± 0.3 |
Latitude | 43.8232 ± 0.0144 |
Longitude | 10.3602 ± 0.0287 |
Depth (km) | 11 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95459231 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2177 |
Semi-minor axis of confidence ellipse (meter) | 1607 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 94 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2180.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 207 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.38 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.37322 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 95459231 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-15 10:35:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FIR.HHZ. | 2021-09-15T10:31:01.24 | 0.6 | undecidable | manual | S | 0.13 | 0.71 | |||
GU.EQUI.HHZ. | 2021-09-15T10:30:50.65 | 0.3 | undecidable | manual | S | 337 | 41.4252 | 50 | -0.67 | 62 |
GU.CARD.HHZ. | 2021-09-15T10:30:46.60 | 0.6 | undecidable | manual | S | 23 | 24.5532 | 50 | -0.19 | 48 |
GU.POPM.HHZ. | 2021-09-15T10:30:45.55 | 0.1 | positive | manual | P | -0.07 | 1.41 | |||
GU.EQUI.HHZ. | 2021-09-15T10:30:45.87 | 0.1 | undecidable | manual | P | 337 | 41.4252 | 50 | 0.29 | 92 |
IV.PII.HHZ. | 2021-09-15T10:30:44.16 | 0.6 | undecidable | manual | S | 130 | 17.3715 | 122 | -0.69 | 43 |
GU.CARD.HHZ. | 2021-09-15T10:30:43.19 | 0.3 | positive | manual | P | 23 | 24.5532 | 50 | 0.22 | 72 |
GU.MAIM.HHZ. | 2021-09-15T10:30:43.84 | 0.6 | undecidable | manual | S | 46 | 14.4744 | 127 | -0.19 | 49 |
GU.MAIM.HHZ. | 2021-09-15T10:30:41.82 | 0.6 | positive | manual | P | 46 | 14.4744 | 127 | 0.45 | 47 |
IV.PII.HHZ. | 2021-09-15T10:30:41.95 | 0.1 | negative | manual | P | 130 | 17.3715 | 122 | 0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.MAIM.HHN. | ML:1.1 | 0.00011599999999999999 | 0.38 | AML | other | m | 2021-09-15T10:30:44.15 |
GU.MAIM.HHE. | ML:1.0 | 0.00009725 | 0.16 | AML | other | m | 2021-09-15T10:30:44.22 |
IV.PII.HHN. | ML:1.2 | 0.00014000000000000001 | 0.7 | AML | other | m | 2021-09-15T10:30:44.61 |
IV.PII.HHE. | ML:1.2 | 0.0001245 | 0.42 | AML | other | m | 2021-09-15T10:30:44.26 |
GU.CARD.HHE. | ML:1.1 | 0.0000732 | 1.14 | AML | other | m | 2021-09-15T10:30:46.94 |
GU.CARD.HHN. | ML:1.1 | 0.0000824 | 1.48 | AML | other | m | 2021-09-15T10:30:46.24 |
GU.POPM.HHN. | ML:0.9 | 0.00002815 | 0.16 | AML | other | m | 2021-09-15T10:30:51.42 |
GU.POPM.HHE. | ML:0.9 | 0.0000314 | 0.12 | AML | other | m | 2021-09-15T10:30:51.34 |
GU.EQUI.HHE. | ML:0.5 | 0.000009315551 | 0.2624 | AML | other | m | 2021-09-15T10:30:51.10 |
GU.EQUI.HHN. | ML:0.5 | 0.0000120137305 | 0.7552 | AML | other | m | 2021-09-15T10:30:51.10 |