A magnitude ML 0.5 earthquake occured in region: 5 km NE Vecchiano (PI), on
and geographic coordinates (lat, lon) 43.8210, 10.4100 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 |
---|---|---|---|---|
Vecchiano | PI | 5 | 12189 | 12189 |
San Giuliano Terme | PI | 7 | 31399 | 43588 |
Massarosa | LU | 8 | 22471 | 66059 |
Lucca | LU | 8 | 89046 | 155105 |
Pisa | PI | 12 | 89158 | 244263 |
Calci | PI | 14 | 6426 | 250689 |
Capannori | LU | 14 | 46252 | 296941 |
Viareggio | LU | 14 | 62467 | 359408 |
Camaiore | LU | 16 | 32513 | 391921 |
Pescaglia | LU | 16 | 3526 | 395447 |
Porcari | LU | 17 | 8845 | 404292 |
Buti | PI | 18 | 5791 | 410083 |
Vicopisano | PI | 19 | 8559 | 418642 |
Cascina | PI | 20 | 45257 | 463899 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2021-10-29 20:52:50 |
43.8207 | 10.4095 | 10 | 2021-10-29 21:03:33 |
Sala Sismica INGV-Roma | 97074171 |
Field | Value |
---|---|
Time (UTC) | 2021-10-29 20:52:50 ± 0.45 |
Latitude | 43.8207 ± 0.0081 |
Longitude | 10.4095 ± 0.0461 |
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 | 97074171 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 3755 |
Semi-minor axis of confidence ellipse (meter) | 473 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 84 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 3750.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 234 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.31 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27699 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 97074171 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-29 21:03:33 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GIUL.HHZ. | 2021-10-29T20:54:07.43 | 3.0 | undecidable | manual | Sn | -0.04 | 0 | |||
IV.CMPR.HHZ. | 2021-10-29T20:54:05.81 | 3.0 | undecidable | manual | Pn | 7.23 | 0 | |||
IV.CADC.EHZ. | 2021-10-29T20:53:38.08 | 3.0 | undecidable | manual | Sn | -0.09 | 0 | |||
IV.PP3.EHZ. | 2021-10-29T20:53:24.81 | 3.0 | undecidable | manual | Pg | 5.02 | 0 | |||
IV.ZEN8.EHZ. | 2021-10-29T20:53:17.16 | 3.0 | undecidable | manual | Pn | 0.53 | 0 | |||
IV.OSSC.HHZ. | 2021-10-29T20:53:02.51 | 3.0 | undecidable | manual | S | 0.24 | 0 | |||
IV.BDI.HNN. | 2021-10-29T20:53:01.41 | 0.6 | undecidable | manual | S | 29 | 30.747 | 50 | 0.08 | 49 |
GU.CARD.HHZ. | 2021-10-29T20:52:58.65 | 0.6 | undecidable | manual | S | 14 | 23.5542 | 113 | -0.64 | 43 |
IV.BDI.HNN. | 2021-10-29T20:52:56.66 | 0.3 | undecidable | manual | P | 29 | 30.747 | 50 | -0.06 | 74 |
GU.MAIM.HHZ. | 2021-10-29T20:52:56.07 | 0.3 | undecidable | manual | S | 33 | 12.1767 | 129 | 0.19 | 74 |
IV.PII.HHZ. | 2021-10-29T20:52:56.23 | 0.3 | undecidable | manual | S | 140 | 14.3745 | 125 | -0.25 | 73 |
GU.CARD.HHZ. | 2021-10-29T20:52:55.39 | 0.3 | undecidable | manual | P | 14 | 23.5542 | 113 | -0.15 | 73 |
IV.PII.HHZ. | 2021-10-29T20:52:54.02 | 0.1 | undecidable | manual | P | 140 | 14.3745 | 125 | 0.11 | 100 |
GU.MAIM.HHZ. | 2021-10-29T20:52:53.93 | 0.1 | undecidable | manual | P | 33 | 12.1767 | 129 | 0.35 | 95 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.MAIM.HHN. | ML:0.4 | 0.0000248 | 0.4 | AML | other | m | 2021-10-29T20:52:56.48 |
GU.MAIM.HHE. | ML:0.4 | 0.00002305 | 0.18 | AML | other | m | 2021-10-29T20:52:56.45 |
IV.PII.HHN. | ML:0.7 | 0.0000519 | 0.12 | AML | other | m | 2021-10-29T20:52:56.57 |
IV.PII.HHE. | ML:0.7 | 0.000055849999999999996 | 0.3 | AML | other | m | 2021-10-29T20:52:56.72 |