A magnitude Md 0.5 earthquake occured in region: 2 km E Piancastagnaio (SI), on
and geographic coordinates (lat, lon) 42.8460, 11.7110 at 5 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 | 2 | 4230 | 4230 |
Abbadia San Salvatore | SI | 5 | 6444 | 10674 |
Radicofani | SI | 7 | 1097 | 11771 |
Castell'Azzara | GR | 8 | 1476 | 13247 |
Santa Fiora | GR | 10 | 2622 | 15869 |
San Casciano dei Bagni | SI | 14 | 1632 | 17501 |
Proceno | VT | 14 | 557 | 18058 |
Arcidosso | GR | 14 | 4285 | 22343 |
Castel del Piano | GR | 15 | 4690 | 27033 |
Seggiano | GR | 16 | 961 | 27994 |
Acquapendente | VT | 17 | 5506 | 33500 |
Roccalbegna | GR | 18 | 1044 | 34544 |
Sorano | GR | 18 | 3428 | 37972 |
Semproniano | GR | 19 | 1059 | 39031 |
Onano | VT | 19 | 995 | 40026 |
Castiglione d'Orcia | SI | 19 | 2346 | 42372 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
Md 0.5 | 2020-02-17 01:22:20 |
42.8463 | 11.711 | 5 | 2020-02-17 13:42:07 |
Sala Sismica INGV-Roma | 76598281 |
Field | Value |
---|---|
Time (UTC) | 2020-02-17 01:22:20 ± 0.07 |
Latitude | 42.8463 ± 0.0018 |
Longitude | 11.7110 ± 0.0025 |
Depth (km) | 5 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 76598281 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 250 |
Semi-minor axis of confidence ellipse (meter) | 57 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 171 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 250.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 135 |
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) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.03238 |
Epicentral distance of station farthest from the epicenter (degree) | 0.17267 |
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 | 0.5 |
Uncertainty | 0.1 |
Num. used stations | 7 |
Type of magnitude | Md |
Reference to an origin | 76598281 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-02-17 13:42:07 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARCI.HHZ. | 2020-02-17T01:22:26.98 | 0.3 | undecidable | manual | S | 272 | 19.1697 | 104 | -0.07 | 72 |
TV.SF01.EHZ. | 2020-02-17T01:22:24.74 | 0.3 | undecidable | manual | S | 252 | 12.5763 | 111 | -0.14 | 72 |
TV.SF14.HHE. | 2020-02-17T01:22:24.74 | 0.3 | undecidable | manual | S | 218 | 12.7761 | 111 | -0.2 | 71 |
IV.ARCI.HHZ. | 2020-02-17T01:22:24.36 | 0.1 | undecidable | manual | P | 272 | 19.1697 | 104 | 0.21 | 94 |
TV.SF13.HHE. | 2020-02-17T01:22:23.50 | 0.3 | undecidable | manual | S | 247 | 8.0808 | 121 | 0.05 | 74 |
IV.SACS.HHZ. | 2020-02-17T01:22:23.49 | 0.1 | undecidable | manual | P | 89 | 16.1727 | 107 | -0.08 | 97 |
IV.MCIV.CHZ. | 2020-02-17T01:22:23.51 | 0.3 | undecidable | manual | S | 201 | 7.9809 | 121 | 0.07 | 74 |
TV.SF01.EHZ. | 2020-02-17T01:22:22.90 | 0.1 | undecidable | manual | P | 252 | 12.5763 | 111 | 0 | 99 |
TV.SF04.EHZ. | 2020-02-17T01:22:22.44 | 0.3 | undecidable | manual | S | 254 | 4.2957 | 138 | 0.01 | 75 |
TV.SF14.HHE. | 2020-02-17T01:22:22.83 | 0.1 | undecidable | manual | P | 218 | 12.7761 | 111 | -0.1 | 97 |
TV.SF11.HHE. | 2020-02-17T01:22:22.19 | 0.3 | undecidable | manual | S | 314 | 3.5964 | 143 | -0.09 | 74 |
TV.SF13.HHE. | 2020-02-17T01:22:22.15 | 0.1 | undecidable | manual | P | 247 | 8.0808 | 121 | 0.08 | 98 |
TV.SF03.EHN. | 2020-02-17T01:22:22.74 | 0.3 | undecidable | manual | S | 203 | 5.2947 | 133 | 0.07 | 74 |
IV.MCIV.CHZ. | 2020-02-17T01:22:22.07 | 0.1 | undecidable | manual | P | 201 | 7.9809 | 121 | 0 | 100 |
TV.SF04.EHZ. | 2020-02-17T01:22:21.54 | 0.1 | undecidable | manual | P | 254 | 4.2957 | 138 | 0.06 | 99 |
TV.SF11.HHE. | 2020-02-17T01:22:21.38 | 0.1 | undecidable | manual | P | 314 | 3.5964 | 143 | -0.02 | 100 |
TV.SF03.EHN. | 2020-02-17T01:22:21.70 | 0.1 | undecidable | manual | P | 203 | 5.2947 | 133 | 0.08 | 99 |