A magnitude ML 1.2 earthquake occured in region: 6 km SE Massarosa (LU), on
and geographic coordinates (lat, lon) 43.8370, 10.3960 at 9 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 | 6 | 22471 | 22471 |
Vecchiano | PI | 6 | 12189 | 34660 |
Lucca | LU | 9 | 89046 | 123706 |
San Giuliano Terme | PI | 9 | 31399 | 155105 |
Viareggio | LU | 12 | 62467 | 217572 |
Pisa | PI | 13 | 89158 | 306730 |
Camaiore | LU | 14 | 32513 | 339243 |
Capannori | LU | 15 | 46252 | 385495 |
Pescaglia | LU | 15 | 3526 | 389021 |
Calci | PI | 16 | 6426 | 395447 |
Porcari | LU | 18 | 8845 | 404292 |
Pietrasanta | LU | 19 | 24007 | 428299 |
Stazzema | LU | 20 | 3193 | 431492 |
Buti | PI | 20 | 5791 | 437283 |
Borgo a Mozzano | LU | 20 | 6994 | 444277 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2022-01-21 03:11:44 |
43.837 | 10.3958 | 9 | 2022-01-21 03:15:49 |
Sala Sismica INGV-Roma | 100001471 |
Field | Value |
---|---|
Time (UTC) | 2022-01-21 03:11:44 ± 0.22 |
Latitude | 43.8370 ± 0.0081 |
Longitude | 10.3958 ± 0.0162 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 100001471 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1311 |
Semi-minor axis of confidence ellipse (meter) | 721 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 74 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1310.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 158 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.33 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.53150 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 100001471 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2022-01-21 03:15:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.GSCL.HHZ. | 2022-01-21T03:12:03.63 | 0.6 | undecidable | manual | S | 15 | 58.9965 | 50 | 0.48 | 42 |
IV.CRMI.HHZ. | 2022-01-21T03:11:59.67 | 0.6 | undecidable | manual | S | 95 | 46.9197 | 50 | -0.26 | 46 |
GU.EQUI.HHZ. | 2022-01-21T03:11:57.30 | 0.6 | undecidable | manual | S | 332 | 41.3253 | 50 | -1.13 | 33 |
GU.POPM.HHZ. | 2022-01-21T03:11:56.66 | 0.6 | undecidable | manual | S | 51 | 36.9297 | 50 | -0.6 | 42 |
GU.GSCL.HHZ. | 2022-01-21T03:11:55.84 | 0.1 | undecidable | manual | P | 15 | 58.9965 | 50 | 0.62 | 81 |
IV.CRMI.HHZ. | 2022-01-21T03:11:54.05 | 1.0 | undecidable | manual | P | 95 | 46.9197 | 50 | 0.69 | 20 |
IV.BDI.HHZ. | 2022-01-21T03:11:54.93 | 0.6 | undecidable | manual | S | 32 | 29.6481 | 106 | -0.2 | 48 |
IV.PLMA.HHZ. | 2022-01-21T03:11:53.93 | 1.0 | positive | manual | P | 0.52 | 0.47 | |||
GU.CARD.HHZ. | 2022-01-21T03:11:52.41 | 0.6 | undecidable | manual | S | 18 | 22.0668 | 111 | -0.21 | 48 |
GU.POPM.HHZ. | 2022-01-21T03:11:52.20 | 0.6 | negative | manual | P | 51 | 36.9297 | 50 | 0.38 | 45 |
GU.EQUI.HHZ. | 2022-01-21T03:11:52.18 | 0.6 | undecidable | manual | P | 332 | 41.3253 | 50 | -0.32 | 45 |
IV.BDI.HHZ. | 2022-01-21T03:11:50.56 | 0.6 | negative | manual | P | 32 | 29.6481 | 106 | -0.03 | 49 |
IV.PII.HHZ. | 2022-01-21T03:11:50.46 | 0.6 | undecidable | manual | S | 141 | 16.4724 | 118 | -0.37 | 47 |
GU.CARD.HHZ. | 2022-01-21T03:11:49.13 | 0.1 | undecidable | manual | P | 18 | 22.0668 | 111 | -0.01 | 100 |
GU.MAIM.HHZ. | 2022-01-21T03:11:49.23 | 0.6 | undecidable | manual | S | 42 | 11.3775 | 127 | -0.12 | 50 |
IV.PII.HHZ. | 2022-01-21T03:11:48.10 | 0.6 | undecidable | manual | P | 141 | 16.4724 | 118 | -0.01 | 51 |
GU.MAIM.HHZ. | 2022-01-21T03:11:47.57 | 0.1 | negative | manual | P | 42 | 11.3775 | 127 | 0.31 | 96 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.MAIM.HHE. | ML:0.9 | 0.00010545 | 0.96 | AML | other | m | 2022-01-21T03:11:49.10 |
GU.MAIM.HHN. | ML:1.1 | 0.000154 | 1.56 | AML | other | m | 2022-01-21T03:11:49.06 |
IV.PII.HHN. | ML:1.3 | 0.0001955 | 1.36 | AML | other | m | 2022-01-21T03:11:50.01 |
IV.PII.HHE. | ML:1.5 | 0.000319 | 1.5 | AML | other | m | 2022-01-21T03:11:51.22 |
GU.CARD.HHN. | ML:1.4 | 0.0001965 | 0.66 | AML | other | m | 2022-01-21T03:11:52.71 |
GU.CARD.HHE. | ML:1.3 | 0.000131 | 0.34 | AML | other | m | 2022-01-21T03:11:53.26 |
IV.BDI.HHN. | ML:1.1 | 0.00005865 | 0.26 | AML | other | m | 2022-01-21T03:11:55.05 |
IV.BDI.HHE. | ML:1.0 | 0.000051599999999999994 | 0.34 | AML | other | m | 2022-01-21T03:11:55.27 |
GU.POPM.HHE. | ML:1.1 | 0.000043049999999999996 | 0.18 | AML | other | m | 2022-01-21T03:11:57.66 |
GU.POPM.HHN. | ML:1.1 | 0.000043700000000000005 | 0.78 | AML | other | m | 2022-01-21T03:11:58.73 |