A magnitude ML 1.3 earthquake occured in region: 4 km E Santa Fiora (GR), on
and geographic coordinates (lat, lon) 42.8430, 11.6380 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 |
---|---|---|---|---|
Santa Fiora | GR | 4 | 2622 | 2622 |
Piancastagnaio | SI | 5 | 4230 | 6852 |
Abbadia San Salvatore | SI | 5 | 6444 | 13296 |
Arcidosso | GR | 9 | 4285 | 17581 |
Castell'Azzara | GR | 9 | 1476 | 19057 |
Castel del Piano | GR | 10 | 4690 | 23747 |
Seggiano | GR | 12 | 961 | 24708 |
Radicofani | SI | 12 | 1097 | 25805 |
Roccalbegna | GR | 12 | 1044 | 26849 |
Semproniano | GR | 15 | 1059 | 27908 |
Castiglione d'Orcia | SI | 18 | 2346 | 30254 |
Proceno | VT | 18 | 557 | 30811 |
Sorano | GR | 19 | 3428 | 34239 |
San Casciano dei Bagni | SI | 20 | 1632 | 35871 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2024-02-18 12:30:28 |
42.8427 | 11.6385 | 6 | 2024-02-18 12:35:24 |
Sala Sismica INGV-Roma | 125355551 |
Field | Value |
---|---|
Time (UTC) | 2024-02-18 12:30:28 ± 0.1 |
Latitude | 42.8427 ± 0.0027 |
Longitude | 11.6385 ± 0.0037 |
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 | 125355551 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 312 |
Semi-minor axis of confidence ellipse (meter) | 151 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 201 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 310.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 134 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 10 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25900 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 125355551 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2024-02-18 12:35:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CRE.HHZ. | 2024-02-18T12:30:45.17 | 3.0 | positive | manual | P | 0.84 | 0 | |||
IV.CSNT.HHZ. | 2024-02-18T12:30:41.87 | 3.0 | negative | manual | P | -0.13 | 0 | |||
IV.CASP.HHZ. | 2024-02-18T12:30:40.42 | 3.0 | positive | manual | P | 0.09 | 0 | |||
IV.CAFI.HHZ. | 2024-02-18T12:30:39.21 | 3.0 | positive | manual | P | -0.19 | 0 | |||
IV.LATE.HHZ. | 2024-02-18T12:30:39.18 | 0.3 | undecidable | manual | S | 152 | 28.749 | 101 | 0.02 | 72 |
IV.LOCA.HHZ. | 2024-02-18T12:30:39.37 | 3.0 | negative | manual | P | -0.06 | 0 | |||
IV.SACS.HHZ. | 2024-02-18T12:30:36.76 | 0.6 | undecidable | manual | S | 88 | 22.0668 | 105 | -0.14 | 48 |
IV.RIBO.EHZ.01 | 2024-02-18T12:30:36.20 | 3.0 | undecidable | manual | P | -1.75 | 0 | |||
IV.MGAB.HHZ. | 2024-02-18T12:30:34.84 | 3.0 | undecidable | manual | P | -1.26 | 0 | |||
IV.LATE.HHZ. | 2024-02-18T12:30:34.67 | 0.1 | negative | manual | P | 152 | 28.749 | 101 | -0.19 | 93 |
IV.SACS.HHZ. | 2024-02-18T12:30:33.64 | 0.1 | undecidable | manual | P | 88 | 22.0668 | 105 | 0.09 | 96 |
IV.ARCI.HHZ. | 2024-02-18T12:30:33.92 | 0.3 | undecidable | manual | S | 275 | 13.2756 | 113 | -0.09 | 73 |
IV.MCIV.CHZ. | 2024-02-18T12:30:32.32 | 0.3 | undecidable | manual | S | 156 | 7.7811 | 127 | -0.01 | 75 |
IV.MCIV.CHZ. | 2024-02-18T12:30:31.09 | 0.1 | positive | manual | P | 156 | 7.7811 | 127 | 0.17 | 97 |
IV.ARCI.HHZ. | 2024-02-18T12:30:31.94 | 0.1 | undecidable | manual | P | 275 | 13.2756 | 113 | 0.05 | 99 |
TV.SF11.HHZ. | 2024-02-18T12:30:31.43 | 0.3 | undecidable | manual | S | 49 | 4.3956 | 143 | -0.06 | 75 |
TV.SF11.HHZ. | 2024-02-18T12:30:30.49 | 0.1 | undecidable | manual | P | 49 | 4.3956 | 143 | 0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ARCI.HHN. | ML:1.4 | 0.0003505 | 1.8 | AML | other | m | 2024-02-18T12:30:35.06 |
IV.ARCI.HHE. | ML:1.4 | 0.0003175 | 1.34 | AML | other | m | 2024-02-18T12:30:36.73 |
IV.SACS.HHN. | ML:1.2 | 0.0001032 | 0.56 | AML | other | m | 2024-02-18T12:30:38.66 |
IV.SACS.HHE. | ML:1.0 | 0.00007845 | 0.5 | AML | other | m | 2024-02-18T12:30:38.95 |
IV.LATE.HHE. | ML:1.5 | 0.00016999999999999999 | 0.66 | AML | other | m | 2024-02-18T12:30:39.28 |
IV.LATE.HHN. | ML:1.8 | 0.0003075 | 0.56 | AML | other | m | 2024-02-18T12:30:41.02 |
IV.CASP.HHN. | ML:0.7 | 0.00001084 | 1.28 | AML | other | m | 2024-02-18T12:30:44.23 |
IV.LOCA.HHN. | ML:1.2 | 0.00003685 | 0.18 | AML | other | m | 2024-02-18T12:30:46.28 |
IV.LOCA.HHE. | ML:1.3 | 0.000039750000000000004 | 0.16 | AML | other | m | 2024-02-18T12:30:46.29 |
IV.CASP.HHE. | ML:0.7 | 0.00000894 | 0.4 | AML | other | m | 2024-02-18T12:30:51.30 |