A magnitude ML 0.9 earthquake occured in region: 2 km W Montieri (GR), on
and geographic coordinates (lat, lon) 43.1360, 10.9900 at 8 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 |
---|---|---|---|---|
Montieri | GR | 2 | 1204 | 1204 |
Chiusdino | SI | 8 | 1903 | 3107 |
Castelnuovo di Val di Cecina | PI | 11 | 2231 | 5338 |
Monterotondo Marittimo | GR | 11 | 1371 | 6709 |
Massa Marittima | GR | 13 | 8375 | 15084 |
Radicondoli | SI | 15 | 914 | 15998 |
Monticiano | SI | 16 | 1571 | 17569 |
Roccastrada | GR | 20 | 9199 | 26768 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-10-28 00:03:18 |
43.1357 | 10.9897 | 8 | 2021-10-28 00:53:07 |
Sala Sismica INGV-Roma | 97030581 |
Field | Value |
---|---|
Time (UTC) | 2021-10-28 00:03:18 ± 0.2 |
Latitude | 43.1357 ± 0.0171 |
Longitude | 10.9897 ± 0.0197 |
Depth (km) | 8 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 97030581 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2290 |
Semi-minor axis of confidence ellipse (meter) | 1000 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 324 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2290.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 167 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.36 |
Epicentral distance of station closest to the epicenter (degree) | 0.06655 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35613 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.4 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 97030581 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-28 00:53:07 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CASP.HHZ. | 2021-10-28T00:03:31.31 | 0.6 | undecidable | manual | S | 195 | 39.5271 | 50 | -0.74 | 39 |
IV.CASP.HHZ. | 2021-10-28T00:03:26.85 | 0.3 | undecidable | manual | P | 195 | 39.5271 | 50 | 0.63 | 62 |
IV.FROS.CHZ. | 2021-10-28T00:03:24.07 | 0.6 | undecidable | manual | S | 59 | 15.7731 | 116 | -0.25 | 48 |
IV.RIBO.EHZ.01 | 2021-10-28T00:03:22.92 | 1.0 | undecidable | manual | P | 167 | 21.1677 | 110 | 0.17 | 24 |
IV.TRIF.CHZ. | 2021-10-28T00:03:21.63 | 0.6 | undecidable | manual | S | 252 | 7.3815 | 135 | -0.29 | 48 |
IV.FROS.CHZ. | 2021-10-28T00:03:21.79 | 0.3 | positive | manual | P | 59 | 15.7731 | 116 | 0.04 | 75 |
IV.TRIF.CHZ. | 2021-10-28T00:03:20.45 | 0.1 | negative | manual | P | 252 | 7.3815 | 135 | 0.09 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHE. | ML:1.1 | 0.00023653940000000002 | 0.112 | AML | other | m | 2021-10-28T00:03:22.48 |
IV.TRIF.CHN. | ML:1.3 | 0.00033682285 | 0.064 | AML | other | m | 2021-10-28T00:03:21.83 |
IV.FROS.CHE. | ML:0.4 | 0.0000232354525 | 0.104 | AML | other | m | 2021-10-28T00:03:24.65 |
IV.FROS.CHN. | ML:0.7 | 0.000046603975 | 0.144 | AML | other | m | 2021-10-28T00:03:24.20 |
IV.RIBO.EHE.01 | ML:0.7 | 0.00003438078 | 0.14 | AML | other | m | 2021-10-28T00:03:27.73 |
IV.CASP.HHN. | ML:0.6 | 0.00001464786 | 1.58 | AML | other | m | 2021-10-28T00:03:31.70 |
IV.CASP.HNE. | ML:1.5 | 0.00010689591000000001 | 5.2 | AML | other | m | 2021-10-28T00:03:29.32 |
IV.CASP.HNN. | ML:2.6 | 0.0015503125 | 1.05 | AML | other | m | 2021-10-28T00:03:29.33 |
IV.CASP.HHE. | ML:0.6 | 0.00001304017 | 1.24 | AML | other | m | 2021-10-28T00:03:32.07 |