A magnitude ML 1.2 earthquake occured in region: 4 km NW Chiusdino (SI), on
and geographic coordinates (lat, lon) 43.1820, 11.0500 at 11 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 |
---|---|---|---|---|
Chiusdino | SI | 4 | 1903 | 1903 |
Montieri | GR | 6 | 1204 | 3107 |
Radicondoli | SI | 9 | 914 | 4021 |
Monticiano | SI | 12 | 1571 | 5592 |
Castelnuovo di Val di Cecina | PI | 12 | 2231 | 7823 |
Monterotondo Marittimo | GR | 16 | 1371 | 9194 |
Casole d'Elsa | SI | 18 | 3897 | 13091 |
Sovicille | SI | 18 | 10116 | 23207 |
Pomarance | PI | 19 | 5897 | 29104 |
Massa Marittima | GR | 20 | 8375 | 37479 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-07-24 04:01:31 |
43.1818 | 11.0495 | 11 | 2021-07-24 04:16:40 |
Sala Sismica INGV-Roma | 93136321 |
Field | Value |
---|---|
Time (UTC) | 2021-07-24 04:01:31 ± 0.12 |
Latitude | 43.1818 ± 0.0063 |
Longitude | 11.0495 ± 0.0111 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 93136321 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 940 |
Semi-minor axis of confidence ellipse (meter) | 132 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 303 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 940.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 95 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.38 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.45326 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 93136321 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-24 04:16:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MPAG.EHZ. | 2021-07-24T04:01:58.93 | 3.0 | undecidable | manual | P | 2.24 | 0 | |||
IV.ARCI.HHN. | 2021-07-24T04:01:47.25 | 0.3 | undecidable | manual | S | 137 | 50.3163 | 50 | -0.67 | 60 |
IV.CASP.HHZ. | 2021-07-24T04:01:46.44 | 0.3 | undecidable | manual | S | 199 | 45.9207 | 50 | -0.3 | 67 |
IV.OSSC.HHN. | 2021-07-24T04:01:45.43 | 0.3 | undecidable | manual | S | 23 | 41.1255 | 50 | -0.03 | 72 |
IV.FIR.HHZ. | 2021-07-24T04:01:44.90 | 3.0 | undecidable | manual | P | 0.08 | 0 | |||
IV.CSNT.HHE. | 2021-07-24T04:01:44.24 | 0.3 | undecidable | manual | S | 31 | 37.7289 | 50 | -0.31 | 68 |
IV.MAGO.CHZ. | 2021-07-24T04:01:42.72 | 0.3 | undecidable | manual | S | 288 | 33.2445 | 50 | -0.64 | 63 |
IV.CASP.HHZ. | 2021-07-24T04:01:41.14 | 0.1 | undecidable | manual | P | 199 | 45.9207 | 50 | 0.67 | 81 |
IV.ARCI.HHN. | 2021-07-24T04:01:41.79 | 0.3 | undecidable | manual | P | 137 | 50.3163 | 50 | 0.63 | 61 |
IV.RIBO.EHZ.01 | 2021-07-24T04:01:41.07 | 0.3 | undecidable | manual | S | 181 | 25.8519 | 50 | -0.31 | 70 |
IV.CSNT.HHE. | 2021-07-24T04:01:39.36 | 0.1 | undecidable | manual | P | 31 | 37.7289 | 50 | 0.15 | 94 |
IV.OSSC.HHN. | 2021-07-24T04:01:39.95 | 0.1 | undecidable | manual | P | 23 | 41.1255 | 50 | 0.22 | 92 |
IV.MAGO.CHZ. | 2021-07-24T04:01:38.77 | 0.1 | undecidable | manual | P | 288 | 33.2445 | 50 | 0.25 | 93 |
IV.RIBO.EHZ.01 | 2021-07-24T04:01:37.77 | 0.3 | undecidable | manual | P | 181 | 25.8519 | 50 | 0.38 | 69 |
IV.TRIF.CHZ. | 2021-07-24T04:01:37.64 | 0.3 | undecidable | manual | S | 238 | 13.9749 | 127 | -0.37 | 70 |
IV.FROS.CHZ. | 2021-07-24T04:01:36.33 | 0.3 | undecidable | manual | S | 70 | 9.1797 | 139 | -0.44 | 70 |
IV.TRIF.CHZ. | 2021-07-24T04:01:35.62 | 0.1 | undecidable | manual | P | 238 | 13.9749 | 127 | 0.18 | 97 |
IV.FROS.CHZ. | 2021-07-24T04:01:34.82 | 0.1 | undecidable | manual | P | 70 | 9.1797 | 139 | 0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHE. | ML:1.3 | 0.00024109875 | 0.208 | AML | other | m | 2021-07-24T04:01:36.36 |
IV.FROS.CHN. | ML:1.3 | 0.00028100000000000005 | 0.08 | AML | other | m | 2021-07-24T04:01:36.49 |
IV.TRIF.CHN. | ML:1.3 | 0.00020976245 | 0.1344 | AML | other | m | 2021-07-24T04:01:37.72 |
IV.TRIF.CHE. | ML:1.6 | 0.00034836500000000006 | 0.1216 | AML | other | m | 2021-07-24T04:01:38.16 |
IV.RIBO.EHE.01 | ML:1.1 | 0.00006495070999999999 | 0.2208 | AML | other | m | 2021-07-24T04:01:41.39 |
IV.CASP.HHN. | ML:1.1 | 0.000034327145 | 0.1024 | AML | other | m | 2021-07-24T04:01:46.86 |
IV.CASP.HNE. | ML:1.0 | 0.000031361109999999994 | 0.1408 | AML | other | m | 2021-07-24T04:01:46.77 |
IV.CASP.HNN. | ML:1.0 | 0.00002947275 | 0.1024 | AML | other | m | 2021-07-24T04:01:46.82 |
IV.CASP.HHE. | ML:1.0 | 0.00003193076 | 0.16 | AML | other | m | 2021-07-24T04:01:46.99 |