A magnitude ML 0.9 earthquake occured in region: 1 km E Piancastagnaio (SI), on
and geographic coordinates (lat, lon) 42.8520, 11.7020 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 |
---|---|---|---|---|
Piancastagnaio | SI | 1 | 4230 | 4230 |
Abbadia San Salvatore | SI | 4 | 6444 | 10674 |
Radicofani | SI | 7 | 1097 | 11771 |
Castell'Azzara | GR | 9 | 1476 | 13247 |
Santa Fiora | GR | 10 | 2622 | 15869 |
Arcidosso | GR | 13 | 4285 | 20154 |
Castel del Piano | GR | 14 | 4690 | 24844 |
San Casciano dei Bagni | SI | 14 | 1632 | 26476 |
Seggiano | GR | 15 | 961 | 27437 |
Proceno | VT | 15 | 557 | 27994 |
Roccalbegna | GR | 17 | 1044 | 29038 |
Acquapendente | VT | 18 | 5506 | 34544 |
Castiglione d'Orcia | SI | 18 | 2346 | 36890 |
Semproniano | GR | 19 | 1059 | 37949 |
Sorano | GR | 19 | 3428 | 41377 |
Onano | VT | 20 | 995 | 42372 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2020-04-08 09:50:30 |
42.8522 | 11.7017 | 6 | 2020-04-08 09:59:43 |
Sala Sismica INGV-Roma | 78010771 |
Field | Value |
---|---|
Time (UTC) | 2020-04-08 09:50:30 ± 0.2 |
Latitude | 42.8522 ± 0.0054 |
Longitude | 11.7017 ± 0.0123 |
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 | 78010771 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1030 |
Semi-minor axis of confidence ellipse (meter) | 280 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 275 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1030.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 239 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.16548 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 78010771 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-04-08 09:59:43 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BRSN.HNZ. | 2020-04-08T09:50:54.70 | 3.0 | undecidable | manual | S | -1.97 | 0 | |||
IV.MF5.EHZ. | 2020-04-08T09:50:52.24 | 3.0 | positive | manual | Pn | 3.25 | 0 | |||
IV.PE3.EHZ. | 2020-04-08T09:50:39.22 | 3.0 | undecidable | manual | P | 0.34 | 0 | |||
TV.SF14.HHZ. | 2020-04-08T09:50:35.69 | 0.1 | undecidable | manual | S | 213 | 12.876 | 116 | -0.19 | 95 |
IV.ARCI.HNE. | 2020-04-08T09:50:34.95 | 0.3 | undecidable | manual | P | 270 | 18.3705 | 109 | 0.15 | 71 |
TV.SF13.HHN. | 2020-04-08T09:50:34.55 | 0.3 | undecidable | manual | S | 241 | 7.6812 | 129 | 0.21 | 72 |
IV.MCIV.CHZ. | 2020-04-08T09:50:34.66 | 0.3 | undecidable | manual | S | 194 | 8.3805 | 127 | 0.11 | 73 |
IV.MCIV.CHZ. | 2020-04-08T09:50:33.01 | 0.1 | undecidable | manual | P | 194 | 8.3805 | 127 | 0 | 100 |
TV.SF11.HHZ. | 2020-04-08T09:50:33.12 | 0.1 | undecidable | manual | S | 315 | 2.5974 | 158 | -0.14 | 98 |
TV.SF04.EHZ. | 2020-04-08T09:50:33.45 | 0.3 | undecidable | manual | S | 241 | 3.7962 | 149 | 0 | 75 |
TV.SF13.HHN. | 2020-04-08T09:50:33.08 | 0.1 | undecidable | manual | P | 241 | 7.6812 | 129 | 0.19 | 96 |
TV.SF01.EHE. | 2020-04-08T09:50:33.22 | 0.3 | undecidable | manual | P | 248 | 12.0768 | 117 | -0.42 | 68 |
TV.SF14.HHZ. | 2020-04-08T09:50:33.74 | 0.1 | undecidable | manual | P | 213 | 12.876 | 116 | -0.04 | 98 |
TV.SF11.HHZ. | 2020-04-08T09:50:32.30 | 0.1 | undecidable | manual | P | 315 | 2.5974 | 158 | 0.03 | 100 |
TV.SF04.EHZ. | 2020-04-08T09:50:32.47 | 0.1 | undecidable | manual | P | 241 | 3.7962 | 149 | 0.09 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
TV.SF04.EHN. | ML:2.4 | 0.0006805 | 0.12 | AML | other | m | 2020-04-08T09:50:33.55 |
TV.SF04.EHE. | ML:2.5 | 0.0008305 | 0.14 | AML | other | m | 2020-04-08T09:50:33.59 |
IV.MCIV.CHN. | ML:1.0 | 0.00015899999999999996 | 0.86 | AML | other | m | 2020-04-08T09:50:34.82 |
IV.MCIV.CHE. | ML:0.8 | 0.0001155 | 1.78 | AML | other | m | 2020-04-08T09:50:36.93 |