A magnitude ML 0.8 earthquake occured in region: 2 km NE Piancastagnaio (SI), on
and geographic coordinates (lat, lon) 42.8660, 11.7060 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 |
---|---|---|---|---|
Piancastagnaio | SI | 2 | 4230 | 4230 |
Abbadia San Salvatore | SI | 3 | 6444 | 10674 |
Radicofani | SI | 6 | 1097 | 11771 |
Castell'Azzara | GR | 10 | 1476 | 13247 |
Santa Fiora | GR | 10 | 2622 | 15869 |
Arcidosso | GR | 14 | 4285 | 20154 |
San Casciano dei Bagni | SI | 14 | 1632 | 21786 |
Seggiano | GR | 14 | 961 | 22747 |
Castel del Piano | GR | 14 | 4690 | 27437 |
Proceno | VT | 16 | 557 | 27994 |
Castiglione d'Orcia | SI | 17 | 2346 | 30340 |
Roccalbegna | GR | 18 | 1044 | 31384 |
Acquapendente | VT | 19 | 5506 | 36890 |
Sarteano | SI | 19 | 4717 | 41607 |
Cetona | SI | 19 | 2755 | 44362 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2020-02-08 01:08:04 |
42.8662 | 11.7057 | 4 | 2020-02-08 01:22:26 |
Sala Sismica INGV-Roma | 76328211 |
Field | Value |
---|---|
Time (UTC) | 2020-02-08 01:08:04 ± 0.21 |
Latitude | 42.8662 ± 0.0081 |
Longitude | 11.7057 ± 0.0086 |
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 | 76328211 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 805 |
Semi-minor axis of confidence ellipse (meter) | 679 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 208 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 810.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 289 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.16907 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.5 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 76328211 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-02-08 01:22:26 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BRSN.EHZ. | 2020-02-08T01:08:32.38 | 3.0 | undecidable | manual | S | -3.76 | 0 | |||
IV.FIR.HHZ. | 2020-02-08T01:08:30.59 | 3.0 | undecidable | manual | S | 0.05 | 0 | |||
IV.ARCI.HHZ. | 2020-02-08T01:08:10.89 | 0.6 | undecidable | manual | S | 265 | 18.7701 | 103 | -0.2 | 47 |
TV.SF01.EHZ. | 2020-02-08T01:08:09.20 | 0.3 | undecidable | manual | S | 243 | 13.0758 | 108 | 0.03 | 74 |
IV.MCIV.CHZ. | 2020-02-08T01:08:08.25 | 0.3 | undecidable | manual | S | 194 | 9.9789 | 113 | 0.08 | 73 |
IV.ARCI.HHZ. | 2020-02-08T01:08:08.53 | 0.6 | undecidable | manual | P | 265 | 18.7701 | 103 | 0.26 | 46 |
IV.MURB.HHZ. | 2020-02-08T01:08:07.00 | 3.0 | positive | manual | P | 3.32 | 0 | |||
TV.SF01.EHZ. | 2020-02-08T01:08:07.20 | 0.6 | negative | manual | P | 243 | 13.0758 | 108 | 0.04 | 49 |
IV.APEC.HHZ. | 2020-02-08T01:08:07.98 | 3.0 | negative | manual | P | 0.07 | 0 | |||
TV.SF04.EHZ. | 2020-02-08T01:08:06.68 | 0.3 | undecidable | manual | S | 227 | 4.995 | 130 | 0 | 75 |
IV.MCIV.CHZ. | 2020-02-08T01:08:06.46 | 0.1 | positive | manual | P | 194 | 9.9789 | 113 | -0.13 | 97 |
TV.SF04.EHZ. | 2020-02-08T01:08:05.72 | 0.1 | positive | manual | P | 227 | 4.995 | 130 | 0 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MCIV.CHN. | ML:1.1 | 0.00022899999999999998 | 0.16 | AML | other | m | 2020-02-08T01:08:08.46 |
IV.MCIV.CHE. | ML:0.9 | 0.0001255 | 1.14 | AML | other | m | 2020-02-08T01:08:09.58 |
IV.ARCI.HHE. | ML:0.6 | 0.000033050000000000004 | 1.12 | AML | other | m | 2020-02-08T01:08:11.13 |
IV.ARCI.HHN. | ML:0.4 | 0.0000268 | 0.64 | AML | other | m | 2020-02-08T01:08:12.23 |
IV.FIR.HHE. | ML:2.5 | 0.000263 | 1.52 | AML | other | m | 2020-02-08T01:08:35.04 |
IV.FIR.HHN. | ML:2.6 | 0.00033150000000000003 | 0.26 | AML | other | m | 2020-02-08T01:08:40.66 |
TV.SF01.EHE. | ML:0.5 | 0.0000382625595 | 0.14 | AML | other | m | 2020-02-08T01:08:10.10 |
TV.SF01.EHN. | ML:0.5 | 0.000042913189999999994 | 0.2 | AML | other | m | 2020-02-08T01:08:09.31 |