A magnitude ML 1.2 earthquake occured in region: 3 km SW Castiglione d'Orcia (SI), on
and geographic coordinates (lat, lon) 42.9770, 11.5990 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 | 4 | 2346 | 2346 |
Seggiano | GR | 6 | 961 | 3307 |
San Quirico d'Orcia | SI | 9 | 2662 | 5969 |
Castel del Piano | GR | 11 | 4690 | 10659 |
Abbadia San Salvatore | SI | 12 | 6444 | 17103 |
Arcidosso | GR | 13 | 4285 | 21388 |
Montalcino | SI | 13 | 5093 | 26481 |
Pienza | SI | 13 | 2107 | 28588 |
Piancastagnaio | SI | 16 | 4230 | 32818 |
Santa Fiora | GR | 16 | 2622 | 35440 |
Radicofani | SI | 16 | 1097 | 36537 |
Cinigiano | GR | 19 | 2618 | 39155 |
San Giovanni d'Asso | SI | 20 | 853 | 40008 |
Montepulciano | SI | 20 | 14097 | 54105 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2020-12-17 14:33:05 |
42.9772 | 11.5992 | 12 | 2020-12-17 15:11:00 |
Sala Sismica INGV-Roma | 85496061 |
Field | Value |
---|---|
Time (UTC) | 2020-12-17 14:33:05 ± 0.18 |
Latitude | 42.9772 ± 0.0099 |
Longitude | 11.5992 ± 0.0098 |
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 | 85496061 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 873 |
Semi-minor axis of confidence ellipse (meter) | 781 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 338 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 870.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 263 |
Number of associated phases, regardless of their use for origin computation | 32 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.26080 |
Number of stations at which the event was observed | 24 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.4 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 85496061 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-17 15:11:00 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
HL.VLS.HHZ. | 2020-12-17T14:34:50.40 | 3.0 | positive | manual | Pn | -5.12 | 0 | |||
OT.OT14.EHZ. | 2020-12-17T14:34:47.26 | 3.0 | undecidable | manual | Sg | 9.24 | 0 | |||
SL.BOJS.BHZ. | 2020-12-17T14:34:37.92 | 3.0 | undecidable | manual | Sg | 2.73 | 0 | |||
IV.MCT.HHZ. | 2020-12-17T14:34:32.90 | 3.0 | positive | manual | Pg | 19.6 | 0 | |||
IV.BSSO.HHZ. | 2020-12-17T14:34:26.36 | 3.0 | undecidable | manual | Sg | 5.66 | 0 | |||
MN.TRI.HHZ. | 2020-12-17T14:34:19.32 | 3.0 | undecidable | manual | Sg | 0.24 | 0 | |||
IV.ZONE.HHZ. | 2020-12-17T14:34:18.14 | 3.0 | undecidable | manual | Sg | 18.52 | 0 | |||
XK.GIZZ.HHZ. | 2020-12-17T14:34:17.11 | 3.0 | positive | manual | Pn | 4.24 | 0 | |||
IV.MMN.HHZ. | 2020-12-17T14:34:12.26 | 3.0 | undecidable | manual | Pg | 9.49 | 0 | |||
OX.SABO.HNZ. | 2020-12-17T14:34:09.26 | 3.0 | undecidable | manual | Sn | -9.99 | 0 | |||
IV.LRP.EHZ. | 2020-12-17T14:34:05.75 | 3.0 | undecidable | manual | Sg | 0.75 | 0 | |||
IV.VVLD.HNZ. | 2020-12-17T14:34:01.60 | 3.0 | undecidable | manual | Sg | -1.16 | 0 | |||
IV.RMP.HHZ. | 2020-12-17T14:33:22.01 | 3.0 | positive | manual | Pn | -0.07 | 0 | |||
TV.SF14.HHN. | 2020-12-17T14:33:14.34 | 0.3 | undecidable | manual | S | 177 | 24.6531 | 92 | 0.12 | 72 |
IV.MCIV.CHZ. | 2020-12-17T14:33:13.58 | 0.6 | undecidable | manual | S | 164 | 22.8549 | 92 | -0.18 | 48 |
TV.SF01.EHZ. | 2020-12-17T14:33:13.17 | 0.6 | undecidable | manual | S | 189 | 18.5703 | 94 | 0.58 | 43 |
IV.ARCI.HHZ. | 2020-12-17T14:33:12.59 | 0.6 | undecidable | manual | S | 216 | 17.1717 | 95 | 0.37 | 46 |
TV.SF03.EHE. | 2020-12-17T14:33:12.93 | 0.6 | undecidable | manual | S | 160 | 20.5683 | 93 | -0.2 | 48 |
TV.SF13.HHZ. | 2020-12-17T14:33:12.24 | 0.6 | undecidable | manual | S | 175 | 17.6712 | 95 | -0.12 | 49 |
IV.IMOL.EHZ. | 2020-12-17T14:33:12.93 | 3.0 | negative | manual | P | -1.04 | 0 | |||
IV.CAFI.HHZ. | 2020-12-17T14:33:12.91 | 3.0 | undecidable | manual | P | 0 | ||||
IV.SACS.HHZ. | 2020-12-17T14:33:11.96 | 1.0 | positive | manual | P | 119 | 28.9488 | 91 | 0.9 | 19 |
TV.SF04.EHZ. | 2020-12-17T14:33:11.84 | 0.3 | undecidable | manual | S | 162 | 16.4724 | 96 | -0.2 | 72 |
TV.SF11.HHN. | 2020-12-17T14:33:11.20 | 0.6 | undecidable | manual | S | 152 | 13.6752 | 105 | -0.11 | 49 |
TV.SF14.HHN. | 2020-12-17T14:33:10.37 | 0.1 | undecidable | manual | P | 177 | 24.6531 | 92 | -0.03 | 98 |
IV.MCIV.CHZ. | 2020-12-17T14:33:10.09 | 0.1 | undecidable | manual | P | 164 | 22.8549 | 92 | -0.04 | 98 |
TV.SF13.HHZ. | 2020-12-17T14:33:09.28 | 0.1 | undecidable | manual | P | 175 | 17.6712 | 95 | -0.05 | 99 |
TV.SF03.EHE. | 2020-12-17T14:33:09.69 | 0.1 | undecidable | manual | P | 160 | 20.5683 | 93 | -0.08 | 98 |
TV.SF04.EHZ. | 2020-12-17T14:33:09.15 | 0.1 | undecidable | manual | P | 162 | 16.4724 | 96 | 0.01 | 100 |
TV.SF01.EHZ. | 2020-12-17T14:33:09.40 | 0.1 | undecidable | manual | P | 189 | 18.5703 | 94 | -0.06 | 98 |
TV.SF11.HHN. | 2020-12-17T14:33:08.91 | 0.1 | undecidable | manual | P | 152 | 13.6752 | 105 | 0.19 | 97 |
IV.ARCI.HHZ. | 2020-12-17T14:33:08.96 | 0.3 | negative | manual | P | 216 | 17.1717 | 95 | -0.29 | 71 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
TV.SF04.EHN. | ML:1.6 | 0.00033350000000000003 | 1.12 | AML | other | m | 2020-12-17T14:33:12.84 |
IV.ARCI.HHE. | ML:0.9 | 0.00006185 | 0.14 | AML | other | m | 2020-12-17T14:33:12.91 |
TV.SF04.EHE. | ML:1.6 | 0.000333 | 0.16 | AML | other | m | 2020-12-17T14:33:13.20 |
IV.ARCI.HHN. | ML:0.9 | 0.0000614 | 0.6 | AML | other | m | 2020-12-17T14:33:14.11 |