A magnitude ML 1.2 earthquake occured in region: Ponsacco (PI), on
and geographic coordinates (lat, lon) 43.6240, 10.6330 at 6 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 |
---|---|---|---|---|
Ponsacco | PI | 0 | 15611 | 15611 |
Pontedera | PI | 5 | 29223 | 44834 |
Capannoli | PI | 6 | 6381 | 51215 |
Calcinaia | PI | 7 | 12439 | 63654 |
Crespina Lorenzana | PI | 8 | 5457 | 69111 |
Cascina | PI | 9 | 45257 | 114368 |
Vicopisano | PI | 9 | 8559 | 122927 |
Santa Maria a Monte | PI | 10 | 13253 | 136180 |
Bientina | PI | 10 | 8062 | 144242 |
Casciana Terme Lari | PI | 11 | 12529 | 156771 |
Peccioli | PI | 11 | 4807 | 161578 |
Fauglia | PI | 11 | 3682 | 165260 |
Palaia | PI | 12 | 4612 | 169872 |
Terricciola | PI | 12 | 4627 | 174499 |
Montopoli in Val d'Arno | PI | 12 | 11148 | 185647 |
Buti | PI | 12 | 5791 | 191438 |
Castelfranco di Sotto | PI | 13 | 13427 | 204865 |
Collesalvetti | LI | 13 | 16827 | 221692 |
Calci | PI | 15 | 6426 | 228118 |
Chianni | PI | 15 | 1392 | 229510 |
Santa Croce sull'Arno | PI | 15 | 14601 | 244111 |
Santa Luce | PI | 18 | 1684 | 245795 |
Orciano Pisano | PI | 18 | 647 | 246442 |
Lajatico | PI | 18 | 1336 | 247778 |
Fucecchio | FI | 19 | 23618 | 271396 |
San Miniato | PI | 19 | 27934 | 299330 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-12-19 17:43:55 |
43.6237 | 10.633 | 6 | 2021-12-19 18:00:16 |
Sala Sismica INGV-Roma | 98729741 |
Field | Value |
---|---|
Time (UTC) | 2021-12-19 17:43:55 ± 0.09 |
Latitude | 43.6237 ± 0.0036 |
Longitude | 10.6330 ± 0.0075 |
Depth (km) | 6 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 98729741 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 490 |
Semi-minor axis of confidence ellipse (meter) | 350 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 86 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 490.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 145 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.24 |
Epicentral distance of station closest to the epicenter (degree) | 0.12591 |
Epicentral distance of station farthest from the epicenter (degree) | 0.64302 |
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 | 8 |
Type of magnitude | ML |
Reference to an origin | 98729741 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-19 18:00:16 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BDI.HHZ. | 2021-12-19T17:44:11.68 | 0.3 | undecidable | manual | S | 357 | 48.8178 | 50 | -0.47 | 66 |
GU.POPM.HHZ. | 2021-12-19T17:44:11.41 | 0.6 | undecidable | manual | S | 12 | 47.8188 | 50 | -0.47 | 44 |
IV.MAGO.CHE. | 2021-12-19T17:44:09.24 | 0.3 | undecidable | manual | S | 177 | 38.9277 | 99 | -0.05 | 73 |
GU.EQUI.HHZ. | 2021-12-19T17:44:08.99 | 0.1 | undecidable | manual | P | 328 | 71.373 | 50 | 0.35 | 86 |
IV.CRMI.HNZ. | 2021-12-19T17:44:07.45 | 0.1 | undecidable | manual | S | 55 | 33.744 | 101 | -0.06 | 98 |
GU.MAIM.HHN. | 2021-12-19T17:44:07.52 | 0.3 | undecidable | manual | S | 341 | 34.0437 | 101 | -0.11 | 73 |
IV.MOCL.EHZ. | 2021-12-19T17:44:07.36 | 0.1 | undecidable | manual | P | 46 | 60.8946 | 50 | 0.33 | 88 |
IV.BDI.HHZ. | 2021-12-19T17:44:05.19 | 0.1 | undecidable | manual | P | 357 | 48.8178 | 50 | 0.03 | 96 |
GU.POPM.HHZ. | 2021-12-19T17:44:04.98 | 0.1 | undecidable | manual | P | 12 | 47.8188 | 50 | -0.02 | 96 |
GU.CARD.HHE. | 2021-12-19T17:44:04.99 | 0.6 | undecidable | manual | P | 345 | 46.2204 | 50 | 0.22 | 46 |
IV.MAGO.CHE. | 2021-12-19T17:44:03.29 | 0.1 | undecidable | manual | P | 177 | 38.9277 | 99 | -0.22 | 94 |
IV.CRMI.HNZ. | 2021-12-19T17:44:02.54 | 0.1 | undecidable | manual | P | 55 | 33.744 | 101 | 0.06 | 98 |
GU.MAIM.HHN. | 2021-12-19T17:44:02.86 | 0.1 | undecidable | manual | P | 341 | 34.0437 | 101 | 0.31 | 93 |
IV.PII.HHZ. | 2021-12-19T17:44:00.85 | 0.3 | undecidable | manual | S | 322 | 13.9749 | 114 | -0.07 | 76 |
IV.PII.HHZ. | 2021-12-19T17:43:58.55 | 0.1 | undecidable | manual | P | 322 | 13.9749 | 114 | -0.12 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.CARD.HHE. | ML:1.3 | 0.0000604 | 0.1 | AML | other | m | 2021-12-19T17:44:13.02 |
GU.POPM.HHN. | ML:1.4 | 0.00006755 | 0.14 | AML | other | m | 2021-12-19T17:44:13.57 |
GU.POPM.HHE. | ML:1.3 | 0.0000616 | 0.16 | AML | other | m | 2021-12-19T17:44:13.66 |
IV.BDI.HHE. | ML:1.0 | 0.000027249999999999998 | 0.8 | AML | other | m | 2021-12-19T17:44:14.89 |
GU.CARD.HHN. | ML:1.2 | 0.000050100000000000005 | 1.36 | AML | other | m | 2021-12-19T17:44:14.75 |
IV.BDI.HHN. | ML:1.0 | 0.00002485 | 1.16 | AML | other | m | 2021-12-19T17:44:16.06 |
IV.MOCL.EHE. | ML:1.4 | 0.00004795 | 1.36 | AML | other | m | 2021-12-19T17:44:19.91 |
IV.MOCL.EHN. | ML:1.3 | 0.0000402 | 1.48 | AML | other | m | 2021-12-19T17:44:20.86 |