A magnitude ML 1.3 earthquake occured in region: 1 km NE Montieri (GR), on
and geographic coordinates (lat, lon) 43.1420, 11.0270 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 |
---|---|---|---|---|
Montieri | GR | 1 | 1204 | 1204 |
Chiusdino | SI | 5 | 1903 | 3107 |
Castelnuovo di Val di Cecina | PI | 12 | 2231 | 5338 |
Monticiano | SI | 13 | 1571 | 6909 |
Radicondoli | SI | 13 | 914 | 7823 |
Monterotondo Marittimo | GR | 14 | 1371 | 9194 |
Massa Marittima | GR | 15 | 8375 | 17569 |
Roccastrada | GR | 18 | 9199 | 26768 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2021-12-08 03:57:10 |
43.1418 | 11.0268 | 10 | 2021-12-08 04:05:24 |
Sala Sismica INGV-Roma | 98268911 |
Field | Value |
---|---|
Time (UTC) | 2021-12-08 03:57:10 ± 0.13 |
Latitude | 43.1418 ± 0.0081 |
Longitude | 11.0268 ± 0.0136 |
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 | 98268911 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1295 |
Semi-minor axis of confidence ellipse (meter) | 175 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 304 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1300.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 137 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.09443 |
Epicentral distance of station farthest from the epicenter (degree) | 0.38221 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 98268911 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-08 04:05:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSNT.HHZ. | 2021-12-08T03:57:24.21 | 0.6 | undecidable | manual | S | 30 | 42.4242 | 50 | -0.38 | 45 |
IV.CASP.HHZ. | 2021-12-08T03:57:23.92 | 0.6 | undecidable | manual | S | 199 | 41.1255 | 50 | -0.31 | 46 |
IV.CASP.HHZ. | 2021-12-08T03:57:18.90 | 0.6 | negative | manual | P | 199 | 41.1255 | 50 | 0.43 | 45 |
IV.RIBO.EHZ.01 | 2021-12-08T03:57:18.54 | 0.6 | undecidable | manual | S | 176 | 21.4674 | 115 | -0.29 | 48 |
IV.CSNT.HHZ. | 2021-12-08T03:57:18.82 | 0.6 | undecidable | manual | P | 30 | 42.4242 | 50 | 0.14 | 48 |
IV.RIBO.EHZ.01 | 2021-12-08T03:57:15.63 | 0.6 | undecidable | manual | P | 176 | 21.4674 | 115 | 0.28 | 48 |
IV.TRIF.CHZ. | 2021-12-08T03:57:15.24 | 0.6 | undecidable | manual | S | 253 | 10.4784 | 134 | -0.42 | 48 |
IV.FROS.CHZ. | 2021-12-08T03:57:15.94 | 0.6 | undecidable | manual | S | 54 | 12.876 | 128 | -0.35 | 48 |
IV.FROS.CHZ. | 2021-12-08T03:57:14.13 | 0.1 | positive | manual | P | 54 | 12.876 | 128 | 0.25 | 98 |
IV.TRIF.CHZ. | 2021-12-08T03:57:13.71 | 0.1 | positive | manual | P | 253 | 10.4784 | 134 | 0.19 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:1.3 | 0.0002475 | 0.1 | AML | other | m | 2021-12-08T03:57:15.34 |
IV.TRIF.CHE. | ML:1.4 | 0.0003115 | 0.08 | AML | other | m | 2021-12-08T03:57:15.54 |
IV.FROS.CHE. | ML:1.4 | 0.0002445 | 0.66 | AML | other | m | 2021-12-08T03:57:16.04 |
IV.FROS.CHN. | ML:1.3 | 0.00021 | 0.58 | AML | other | m | 2021-12-08T03:57:16.57 |