A magnitude ML 1.3 earthquake occured in region: 2 km SW Castiglione d'Orcia (SI), on
and geographic coordinates (lat, lon) 42.9870, 11.6000 at 12 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 |
---|---|---|---|---|
Castiglione d'Orcia | SI | 3 | 2346 | 2346 |
Seggiano | GR | 7 | 961 | 3307 |
San Quirico d'Orcia | SI | 8 | 2662 | 5969 |
Castel del Piano | GR | 12 | 4690 | 10659 |
Pienza | SI | 12 | 2107 | 12766 |
Montalcino | SI | 12 | 5093 | 17859 |
Abbadia San Salvatore | SI | 13 | 6444 | 24303 |
Arcidosso | GR | 14 | 4285 | 28588 |
Radicofani | SI | 17 | 1097 | 29685 |
Piancastagnaio | SI | 17 | 4230 | 33915 |
Santa Fiora | GR | 17 | 2622 | 36537 |
San Giovanni d'Asso | SI | 19 | 853 | 37390 |
Montepulciano | SI | 19 | 14097 | 51487 |
Buonconvento | SI | 19 | 3173 | 54660 |
Cinigiano | GR | 20 | 2618 | 57278 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2020-10-27 20:33:43 |
42.9872 | 11.6002 | 12 | 2020-10-27 21:14:31 |
Sala Sismica INGV-Roma | 84190671 |
Field | Value |
---|---|
Time (UTC) | 2020-10-27 20:33:43 ± 0.15 |
Latitude | 42.9872 ± 0.0072 |
Longitude | 11.6002 ± 0.0111 |
Depth (km) | 12 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 84190671 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 825 |
Semi-minor axis of confidence ellipse (meter) | 629 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 189 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 830.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 156 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.28 |
Epicentral distance of station closest to the epicenter (degree) | 0.13220 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39300 |
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 | 1.3 |
Uncertainty | 0.4 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 84190671 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-10-27 21:14:31 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MGAB.HHZ. | 2020-10-27T20:33:56.94 | 0.3 | undecidable | manual | S | 101 | 42.4242 | 91 | -0.24 | 67 |
IV.MGAB.HHZ. | 2020-10-27T20:33:51.37 | 0.3 | undecidable | manual | P | 101 | 42.4242 | 91 | 0.01 | 71 |
IV.FROS.CHZ. | 2020-10-27T20:33:51.11 | 0.3 | undecidable | manual | P | 305 | 43.623 | 91 | -0.44 | 65 |
IV.MCIV.CHZ. | 2020-10-27T20:33:51.99 | 0.3 | undecidable | manual | S | 165 | 23.9538 | 93 | -0.27 | 70 |
IV.ARCI.HHZ. | 2020-10-27T20:33:51.21 | 0.3 | undecidable | manual | S | 214 | 18.0708 | 97 | 0.5 | 68 |
TV.SF04.EHZ. | 2020-10-27T20:33:50.27 | 0.6 | undecidable | manual | S | 164 | 17.4714 | 98 | -0.28 | 47 |
IV.SACS.HHZ. | 2020-10-27T20:33:50.05 | 0.3 | undecidable | manual | P | 121 | 29.4483 | 92 | 0.68 | 63 |
TV.SF01.EHZ. | 2020-10-27T20:33:50.90 | 0.3 | undecidable | manual | S | 189 | 19.6692 | 95 | -0.22 | 71 |
TV.SF13.HHE. | 2020-10-27T20:33:50.74 | 0.3 | undecidable | manual | S | 175 | 18.7701 | 96 | -0.15 | 73 |
TV.SF11.HHE. | 2020-10-27T20:33:49.58 | 0.3 | undecidable | manual | S | 154 | 14.6742 | 105 | -0.22 | 72 |
IV.MCIV.CHZ. | 2020-10-27T20:33:48.62 | 0.1 | undecidable | manual | P | 165 | 23.9538 | 93 | 0.1 | 98 |
IV.ARCI.HHZ. | 2020-10-27T20:33:47.44 | 0.1 | undecidable | manual | P | 214 | 18.0708 | 97 | -0.19 | 96 |
TV.SF04.EHZ. | 2020-10-27T20:33:47.64 | 0.3 | undecidable | manual | P | 164 | 17.4714 | 98 | 0.11 | 74 |
TV.SF01.EHZ. | 2020-10-27T20:33:47.89 | 0.1 | undecidable | manual | P | 189 | 19.6692 | 95 | 0.03 | 100 |
TV.SF11.HHE. | 2020-10-27T20:33:47.40 | 0.1 | undecidable | manual | P | 154 | 14.6742 | 105 | 0.3 | 96 |
TV.SF13.HHE. | 2020-10-27T20:33:47.86 | 0.1 | undecidable | manual | P | 175 | 18.7701 | 96 | 0.13 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ARCI.HHE. | ML:0.9 | 0.00006093405 | 0.192 | AML | other | m | 2020-10-27T20:33:51.78 |
IV.ARCI.HHN. | ML:1.0 | 0.00007255397 | 0.3072 | AML | other | m | 2020-10-27T20:33:51.97 |
TV.SF04.EHE. | ML:1.8 | 0.00050826445 | 0.2432 | AML | other | m | 2020-10-27T20:33:51.39 |
TV.SF04.EHN. | ML:1.6 | 0.0003417552 | 0.1792 | AML | other | m | 2020-10-27T20:33:51.24 |
TV.SF01.EHE. | ML:1.5 | 0.00021629589999999998 | 0.256 | AML | other | m | 2020-10-27T20:33:51.94 |
TV.SF01.EHN. | ML:1.8 | 0.00046220215 | 0.2432 | AML | other | m | 2020-10-27T20:33:51.93 |
IV.MCIV.CHE. | ML:1.0 | 0.000057677315000000005 | 0.256 | AML | other | m | 2020-10-27T20:33:54.23 |
IV.MCIV.CHN. | ML:1.1 | 0.00007241348 | 0.3584 | AML | other | m | 2020-10-27T20:33:54.76 |
IV.MGAB.HHN. | ML:1.0 | 0.000028920835000000002 | 0.2304 | AML | other | m | 2020-10-27T20:33:58.87 |
IV.MGAB.HNN. | ML:1.8 | 0.0001961132 | 0.576 | AML | other | m | 2020-10-27T20:33:56.12 |