A magnitude Md 1.5 earthquake occured in region: 4 km E Santa Fiora (GR), on
and geographic coordinates (lat, lon) 42.8430, 11.6340 at 4 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 |
---|---|---|---|---|
Santa Fiora | GR | 4 | 2622 | 2622 |
Piancastagnaio | SI | 5 | 4230 | 6852 |
Abbadia San Salvatore | SI | 6 | 6444 | 13296 |
Arcidosso | GR | 8 | 4285 | 17581 |
Castell'Azzara | GR | 9 | 1476 | 19057 |
Castel del Piano | GR | 10 | 4690 | 23747 |
Seggiano | GR | 11 | 961 | 24708 |
Roccalbegna | GR | 12 | 1044 | 25752 |
Radicofani | SI | 13 | 1097 | 26849 |
Semproniano | GR | 15 | 1059 | 27908 |
Castiglione d'Orcia | SI | 18 | 2346 | 30254 |
Proceno | VT | 19 | 557 | 30811 |
Sorano | GR | 19 | 3428 | 34239 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
Md 1.5 | 2024-02-17 19:35:20 |
42.8433 | 11.6335 | 4 | 2024-02-17 19:56:30 |
Sala Sismica INGV-Roma | 125343691 |
Field | Value |
---|---|
Time (UTC) | 2024-02-17 19:35:20 ± 0.14 |
Latitude | 42.8433 ± 0.0036 |
Longitude | 11.6335 ± 0.0037 |
Depth (km) | 4 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 125343691 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 347 |
Semi-minor axis of confidence ellipse (meter) | 208 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 184 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 350.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 139 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.12 |
Epicentral distance of station closest to the epicenter (degree) | 0.04137 |
Epicentral distance of station farthest from the epicenter (degree) | 0.20235 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.0 |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 125343691 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2024-02-17 19:56:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARCI.HHN. | 2024-02-17T19:35:25.13 | 0.3 | undecidable | manual | S | 274 | 12.876 | 109 | -0.07 | 73 |
IV.SACS.HHZ. | 2024-02-17T19:35:24.87 | 0.6 | undecidable | manual | P | 88 | 22.4553 | 101 | -0.2 | 47 |
IV.MCIV.CHZ. | 2024-02-17T19:35:23.58 | 0.1 | undecidable | manual | S | 154 | 7.9809 | 119 | -0.06 | 99 |
IV.ARCI.HHN. | 2024-02-17T19:35:23.24 | 0.3 | undecidable | manual | P | 274 | 12.876 | 109 | 0.03 | 74 |
TV.SF11.HHZ. | 2024-02-17T19:35:22.68 | 0.1 | undecidable | manual | S | 53 | 4.5954 | 134 | -0.02 | 100 |
IV.MCIV.CHZ. | 2024-02-17T19:35:22.42 | 0.1 | positive | manual | P | 154 | 7.9809 | 119 | 0.12 | 97 |
TV.SF11.HHZ. | 2024-02-17T19:35:21.83 | 0.1 | undecidable | manual | P | 53 | 4.5954 | 134 | 0.07 | 99 |