A magnitude ML 1.1 earthquake occured in region: 4 km W Chiusdino (SI), on
and geographic coordinates (lat, lon) 43.1690, 11.0430 at 10 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 | 5 | 1204 | 3107 |
Radicondoli | SI | 10 | 914 | 4021 |
Monticiano | SI | 12 | 1571 | 5592 |
Castelnuovo di Val di Cecina | PI | 12 | 2231 | 7823 |
Monterotondo Marittimo | GR | 15 | 1371 | 9194 |
Massa Marittima | GR | 18 | 8375 | 17569 |
Casole d'Elsa | SI | 19 | 3897 | 21466 |
Sovicille | SI | 20 | 10116 | 31582 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-09-26 00:58:36 |
43.1692 | 11.0428 | 10 | 2021-09-26 01:09:23 |
Sala Sismica INGV-Roma | 95883661 |
Field | Value |
---|---|
Time (UTC) | 2021-09-26 00:58:36 ± 0.13 |
Latitude | 43.1692 ± 0.0072 |
Longitude | 11.0428 ± 0.0111 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95883661 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 975 |
Semi-minor axis of confidence ellipse (meter) | 497 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 128 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 970.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 93 |
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) | 0.38 |
Epicentral distance of station closest to the epicenter (degree) | 0.09173 |
Epicentral distance of station farthest from the epicenter (degree) | 0.44786 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 17 |
Type of magnitude | ML |
Reference to an origin | 95883661 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-26 01:09:23 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARCI.HHZ. | 2021-09-26T00:58:52.39 | 0.3 | undecidable | manual | S | 135 | 49.7169 | 50 | -0.28 | 71 |
IV.CASP.HHZ. | 2021-09-26T00:58:51.01 | 0.6 | undecidable | manual | S | 199 | 44.4222 | 50 | -0.25 | 48 |
IV.OSSC.HHZ. | 2021-09-26T00:58:50.44 | 0.6 | undecidable | manual | S | 23 | 42.624 | 50 | -0.33 | 47 |
IV.CSNT.HHZ. | 2021-09-26T00:58:49.48 | 0.6 | undecidable | manual | S | 31 | 39.1275 | 50 | -0.38 | 47 |
IV.MAGO.CHE. | 2021-09-26T00:58:47.62 | 0.6 | undecidable | manual | S | 290 | 33.1446 | 50 | -0.64 | 44 |
IV.ARCI.HHZ. | 2021-09-26T00:58:46.49 | 0.6 | undecidable | manual | P | 135 | 49.7169 | 50 | 0.6 | 43 |
IV.OSSC.HHZ. | 2021-09-26T00:58:45.15 | 0.6 | undecidable | manual | P | 23 | 42.624 | 50 | 0.35 | 47 |
IV.RIBO.EHZ.01 | 2021-09-26T00:58:45.04 | 0.3 | undecidable | manual | S | 179 | 24.4533 | 112 | -0.7 | 65 |
IV.CASP.HHZ. | 2021-09-26T00:58:45.93 | 0.3 | undecidable | manual | P | 199 | 44.4222 | 50 | 0.86 | 59 |
IV.CSNT.HHZ. | 2021-09-26T00:58:44.50 | 0.6 | negative | manual | P | 31 | 39.1275 | 50 | 0.23 | 49 |
IV.MAGO.CHE. | 2021-09-26T00:58:43.37 | 0.6 | undecidable | manual | P | 290 | 33.1446 | 50 | 0.02 | 51 |
IV.RIBO.EHZ.01 | 2021-09-26T00:58:42.29 | 0.6 | undecidable | manual | P | 179 | 24.4533 | 112 | 0.4 | 48 |
IV.FROS.CHZ. | 2021-09-26T00:58:41.08 | 0.3 | undecidable | manual | S | 64 | 10.1787 | 133 | -0.42 | 74 |
IV.TRIF.CHZ. | 2021-09-26T00:58:41.94 | 0.3 | undecidable | manual | S | 242 | 12.876 | 127 | -0.26 | 76 |
IV.TRIF.CHZ. | 2021-09-26T00:58:40.16 | 0.1 | negative | manual | P | 242 | 12.876 | 127 | 0.31 | 100 |
IV.FROS.CHZ. | 2021-09-26T00:58:39.79 | 0.1 | positive | manual | P | 64 | 10.1787 | 133 | 0.35 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHE. | ML:1.2 | 0.0002261129 | 0.144 | AML | other | m | 2021-09-26T00:58:41.83 |
IV.FROS.CHN. | ML:1.3 | 0.0002763857 | 0.16 | AML | other | m | 2021-09-26T00:58:41.56 |
IV.TRIF.CHE. | ML:1.4 | 0.00029371590000000004 | 0.136 | AML | other | m | 2021-09-26T00:58:42.82 |
IV.TRIF.CHN. | ML:1.4 | 0.0002805 | 0.18 | AML | other | m | 2021-09-26T00:58:42.68 |
IV.CASP.HHE. | ML:1.1 | 0.000040854760000000005 | 0.18 | AML | other | m | 2021-09-26T00:58:51.49 |
IV.CASP.HHN. | ML:1.3 | 0.000052727835 | 0.1 | AML | other | m | 2021-09-26T00:58:51.46 |
IV.RIBO.EHE.01 | ML:1.1 | 0.000076568625 | 0.14 | AML | other | m | 2021-09-26T00:58:45.67 |
IV.CSNT.HHN. | ML:0.8 | 0.00001952576 | 0.18 | AML | other | m | 2021-09-26T00:58:49.74 |
IV.CSNT.HHE. | ML:0.6 | 0.000016261635 | 0.26 | AML | other | m | 2021-09-26T00:58:49.93 |
IV.OSSC.HHN. | ML:0.7 | 0.00001543653 | 1.36 | AML | other | m | 2021-09-26T00:58:46.02 |
IV.OSSC.HHE. | ML:0.7 | 0.00001526843 | 1.14 | AML | other | m | 2021-09-26T00:58:58.97 |
IV.CASP.HNE. | ML:1.6 | 0.0001281157 | 0.72 | AML | other | m | 2021-09-26T00:58:58.12 |
IV.CASP.HNN. | ML:1.5 | 0.00008803944950000001 | 0.1704 | AML | other | m | 2021-09-26T00:58:51.14 |
IV.ARCI.HHN. | ML:0.8 | 0.000013261642 | 1.38 | AML | other | m | 2021-09-26T00:59:03.12 |
IV.ARCI.HNE. | ML:1.2 | 0.00004731610999999999 | 0.64 | AML | other | m | 2021-09-26T00:58:48.67 |
IV.ARCI.HNN. | ML:1.1 | 0.000033330399999999995 | 1.0496 | AML | other | m | 2021-09-26T00:59:01.14 |
IV.ARCI.HHE. | ML:0.9 | 0.000018647415 | 1.5 | AML | other | m | 2021-09-26T00:58:51.03 |