A magnitude ML 1.3 earthquake occured in region: 4 km SW Radicofani (SI), on
and geographic coordinates (lat, lon) 42.8670, 11.7530 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 |
---|---|---|---|---|
Radicofani | SI | 4 | 1097 | 1097 |
Piancastagnaio | SI | 5 | 4230 | 5327 |
Abbadia San Salvatore | SI | 6 | 6444 | 11771 |
San Casciano dei Bagni | SI | 10 | 1632 | 13403 |
Castell'Azzara | GR | 11 | 1476 | 14879 |
Proceno | VT | 14 | 557 | 15436 |
Santa Fiora | GR | 14 | 2622 | 18058 |
Cetona | SI | 16 | 2755 | 20813 |
Acquapendente | VT | 16 | 5506 | 26319 |
Sarteano | SI | 17 | 4717 | 31036 |
Seggiano | GR | 17 | 961 | 31997 |
Arcidosso | GR | 17 | 4285 | 36282 |
Castel del Piano | GR | 18 | 4690 | 40972 |
Castiglione d'Orcia | SI | 19 | 2346 | 43318 |
Allerona | TR | 19 | 1794 | 45112 |
Onano | VT | 20 | 995 | 46107 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2024-04-18 21:50:40 |
42.8667 | 11.7528 | 10 | 2024-04-18 22:09:18 |
Sala Sismica INGV-Roma | 126872481 |
Field | Value |
---|---|
Time (UTC) | 2024-04-18 21:50:40 ± 0.11 |
Latitude | 42.8667 ± 0.0126 |
Longitude | 11.7528 ± 0.0074 |
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 | 126872481 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1386 |
Semi-minor axis of confidence ellipse (meter) | 570 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 186 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1390.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 113 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.05396 |
Epicentral distance of station farthest from the epicenter (degree) | 0.48743 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 126872481 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2024-04-18 22:09:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CAFI.HHN. | 2024-04-18T21:50:57.91 | 0.3 | undecidable | manual | S | 19 | 54.1014 | 50 | 0.17 | 67 |
IV.CAFI.HHN. | 2024-04-18T21:50:50.69 | 0.1 | undecidable | manual | P | 19 | 54.1014 | 50 | 0.16 | 89 |
IV.MGAB.HHZ. | 2024-04-18T21:50:50.85 | 0.3 | undecidable | manual | S | 80 | 29.6481 | 50 | -0.35 | 67 |
IV.ARCI.HHZ. | 2024-04-18T21:50:48.85 | 0.6 | undecidable | manual | S | 266 | 22.6551 | 115 | -0.46 | 44 |
IV.SACS.HHZ. | 2024-04-18T21:50:46.56 | 0.3 | undecidable | manual | S | 99 | 12.876 | 129 | 0.14 | 72 |
IV.MGAB.HHZ. | 2024-04-18T21:50:46.54 | 0.3 | undecidable | manual | P | 80 | 29.6481 | 50 | -0.21 | 69 |
IV.ARCI.HHZ. | 2024-04-18T21:50:45.92 | 0.1 | undecidable | manual | P | 266 | 22.6551 | 115 | 0.26 | 93 |
TV.SF11.HHZ. | 2024-04-18T21:50:44.34 | 0.6 | undecidable | manual | S | 272 | 5.994 | 150 | -0.49 | 45 |
IV.MCIV.CHZ. | 2024-04-18T21:50:44.05 | 0.1 | undecidable | manual | P | 212 | 11.5773 | 132 | 0.26 | 94 |
TV.SF11.HHZ. | 2024-04-18T21:50:43.05 | 0.1 | undecidable | manual | P | 272 | 5.994 | 150 | -0.03 | 100 |
IV.SACS.HHZ. | 2024-04-18T21:50:43.98 | 0.1 | undecidable | manual | P | 99 | 12.876 | 129 | -0.01 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
TV.SF11.HHN. | ML:1.7 | 0.0008964999999999999 | 1.04 | AML | other | m | 2024-04-18T21:50:44.36 |
TV.SF11.HHE. | ML:1.7 | 0.00075 | 1.12 | AML | other | m | 2024-04-18T21:50:44.69 |
IV.MCIV.CHE. | ML:1.3 | 0.0002055 | 0.6 | AML | other | m | 2024-04-18T21:50:46.63 |
IV.MCIV.CHN. | ML:1.3 | 0.00023249999999999999 | 0.6 | AML | other | m | 2024-04-18T21:50:48.76 |
IV.SACS.HHE. | ML:1.1 | 0.00014630615000000002 | 1.94 | AML | other | m | 2024-04-18T21:50:48.64 |
IV.SACS.HHN. | ML:0.9 | 0.000087981115 | 0.2 | AML | other | m | 2024-04-18T21:50:48.13 |
IV.ARCI.HHN. | ML:1.2 | 0.00011292775 | 0.14 | AML | other | m | 2024-04-18T21:50:49.40 |
IV.MGAB.HHN. | ML:1.1 | 0.00005891001999999999 | 0.16 | AML | other | m | 2024-04-18T21:50:52.18 |