A magnitude ML 1.2 earthquake occured in region: 7 km S Montieri (GR), on
and geographic coordinates (lat, lon) 43.0730, 11.0110 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 |
---|---|---|---|---|
Montieri | GR | 7 | 1204 | 1204 |
Massa Marittima | GR | 10 | 8375 | 9579 |
Chiusdino | SI | 11 | 1903 | 11482 |
Roccastrada | GR | 15 | 9199 | 20681 |
Monterotondo Marittimo | GR | 15 | 1371 | 22052 |
Monticiano | SI | 16 | 1571 | 23623 |
Castelnuovo di Val di Cecina | PI | 17 | 2231 | 25854 |
Gavorrano | GR | 18 | 8580 | 34434 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-09-19 05:39:20 |
43.0727 | 11.0107 | 11 | 2021-09-19 05:52:09 |
Sala Sismica INGV-Roma | 95619261 |
Field | Value |
---|---|
Time (UTC) | 2021-09-19 05:39:20 ± 0.18 |
Latitude | 43.0727 ± 0.0099 |
Longitude | 11.0107 ± 0.0185 |
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 | 95619261 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1556 |
Semi-minor axis of confidence ellipse (meter) | 1005 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 252 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1560.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 100 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.42 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40559 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 95619261 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-19 05:52:09 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARCI.HHZ. | 2021-09-19T05:39:34.14 | 0.3 | undecidable | manual | S | 123 | 45.0216 | 50 | -0.66 | 61 |
IV.CASP.HHZ. | 2021-09-19T05:39:31.50 | 0.3 | undecidable | manual | S | 201 | 33.4443 | 50 | -0.21 | 70 |
IV.OSSC.HHZ. | 2021-09-19T05:39:30.70 | 3.0 | undecidable | manual | P | 0.16 | 0 | |||
IV.CSNT.HHZ. | 2021-09-19T05:39:29.89 | 3.0 | positive | manual | P | -0.03 | 0 | |||
IV.ARCI.HHZ. | 2021-09-19T05:39:29.05 | 0.3 | undecidable | manual | P | 123 | 45.0216 | 50 | 0.37 | 67 |
IV.CASP.HHZ. | 2021-09-19T05:39:27.48 | 0.6 | undecidable | manual | P | 201 | 33.4443 | 50 | 0.58 | 43 |
IV.RIBO.EHZ.01 | 2021-09-19T05:39:26.40 | 0.1 | undecidable | manual | S | 168 | 14.0748 | 128 | -0.11 | 99 |
IV.TRIF.CHZ. | 2021-09-19T05:39:25.01 | 0.1 | undecidable | manual | S | 298 | 9.879 | 138 | -0.46 | 93 |
IV.FROS.CHZ. | 2021-09-19T05:39:24.73 | 0.1 | undecidable | manual | P | 38 | 19.2696 | 50 | 0.02 | 100 |
IV.RIBO.EHZ.01 | 2021-09-19T05:39:24.19 | 0.1 | undecidable | manual | P | 168 | 14.0748 | 128 | 0.29 | 95 |
IV.TRIF.CHZ. | 2021-09-19T05:39:23.60 | 0.1 | negative | manual | P | 298 | 9.879 | 138 | 0.31 | 96 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHE. | ML:1.6 | 0.0005204999999999999 | 0.24 | AML | other | m | 2021-09-19T05:39:25.39 |
IV.TRIF.CHN. | ML:1.4 | 0.0003235 | 0.14 | AML | other | m | 2021-09-19T05:39:27.17 |
IV.FROS.CHN. | ML:1.0 | 0.0000742 | 1.14 | AML | other | m | 2021-09-19T05:39:28.13 |
IV.FROS.CHE. | ML:1.0 | 0.00007324999999999999 | 0.32 | AML | other | m | 2021-09-19T05:39:29.60 |
IV.CASP.HHN. | ML:1.4 | 0.000105 | 1.68 | AML | other | m | 2021-09-19T05:39:31.00 |
IV.CASP.HHE. | ML:1.4 | 0.000105 | 1.66 | AML | other | m | 2021-09-19T05:39:32.04 |
IV.ARCI.HHE. | ML:1.0 | 0.00003105 | 0.56 | AML | other | m | 2021-09-19T05:39:34.11 |
IV.ARCI.HHN. | ML:1.0 | 0.000032 | 0.12 | AML | other | m | 2021-09-19T05:39:34.34 |