A magnitude ML 1.8 earthquake occured in region: 6 km S Montieri (GR), on
and geographic coordinates (lat, lon) 43.0780, 11.0250 at 10 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 6 | 1204 | 1204 |
Chiusdino | SI | 10 | 1903 | 3107 |
Massa Marittima | GR | 12 | 8375 | 11482 |
Roccastrada | GR | 14 | 9199 | 20681 |
Monticiano | SI | 14 | 1571 | 22252 |
Monterotondo Marittimo | GR | 16 | 1371 | 23623 |
Castelnuovo di Val di Cecina | PI | 17 | 2231 | 25854 |
Gavorrano | GR | 19 | 8580 | 34434 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.8 | 2021-12-07 04:11:30 |
43.0778 | 11.0253 | 10 | 2022-03-30 13:04:22 |
Bollettino Sismico Italiano INGV | 98586701 |
Reviewed Rev100 |
ML 1.9 | 2021-12-07 04:11:30 |
43.0745 | 11.0377 | 9 | 2021-12-07 04:17:28 |
Sala Sismica INGV-Roma | 98228251 |
Field | Value |
---|---|
Time (UTC) | 2021-12-07 04:11:30 ± 0.12 |
Latitude | 43.0778 ± 0.0063 |
Longitude | 11.0253 ± 0.0111 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 98586701 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 895 |
Semi-minor axis of confidence ellipse (meter) | 76 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 292 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 900.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 88 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
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) | 0.09713 |
Epicentral distance of station farthest from the epicenter (degree) | 0.68169 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 98586701 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-12-16 12:00:32 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 98228251 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-07 04:17:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CELB.HHZ. | 2021-12-07T04:11:53.92 | 0.3 | undecidable | manual | S | 241 | 75.6687 | 50 | 0.32 | 64 |
IV.OSSC.HHE. | 2021-12-07T04:11:47.33 | 0.3 | undecidable | manual | S | 20 | 52.503 | 50 | -0.09 | 70 |
IV.CSNT.HHZ. | 2021-12-07T04:11:46.13 | 0.3 | undecidable | manual | S | 26 | 48.8178 | 50 | -0.28 | 68 |
IV.ARCI.HHZ. | 2021-12-07T04:11:44.44 | 0.3 | undecidable | manual | S | 124 | 44.3223 | 50 | -0.78 | 59 |
IV.CELB.HHZ. | 2021-12-07T04:11:44.76 | 0.3 | undecidable | manual | P | 241 | 75.6687 | 50 | 0.84 | 54 |
IV.MAGO.CHE. | 2021-12-07T04:11:42.32 | 0.3 | undecidable | manual | S | 306 | 36.8298 | 50 | -0.89 | 57 |
IV.CASP.HHZ. | 2021-12-07T04:11:41.89 | 0.3 | undecidable | manual | S | 202 | 34.4433 | 50 | -0.68 | 62 |
IV.CSNT.HHZ. | 2021-12-07T04:11:40.40 | 0.1 | undecidable | manual | P | 26 | 48.8178 | 50 | 0.63 | 83 |
IV.OSSC.HHE. | 2021-12-07T04:11:40.81 | 0.1 | undecidable | manual | P | 20 | 52.503 | 50 | 0.46 | 87 |
IV.ARCI.HHZ. | 2021-12-07T04:11:39.37 | 0.1 | undecidable | manual | P | 124 | 44.3223 | 50 | 0.29 | 91 |
IV.MAGO.CHE. | 2021-12-07T04:11:38.01 | 0.1 | undecidable | manual | P | 306 | 36.8298 | 50 | 0.09 | 97 |
IV.CASP.HHZ. | 2021-12-07T04:11:37.57 | 0.1 | undecidable | manual | P | 202 | 34.4433 | 50 | 0.02 | 99 |
IV.FROS.CHZ. | 2021-12-07T04:11:37.41 | 0.3 | undecidable | manual | S | 36 | 18.0708 | 119 | -0.46 | 69 |
IV.RIBO.EHZ.01 | 2021-12-07T04:11:36.56 | 0.6 | undecidable | manual | S | 173 | 14.3745 | 125 | -0.23 | 49 |
IV.TRIF.CHZ. | 2021-12-07T04:11:35.36 | 0.3 | undecidable | manual | S | 292 | 10.7781 | 133 | -0.44 | 70 |
IV.RIBO.EHZ.01 | 2021-12-07T04:11:34.40 | 0.1 | undecidable | manual | P | 173 | 14.3745 | 125 | 0.19 | 99 |
IV.FROS.CHZ. | 2021-12-07T04:11:34.96 | 0.1 | undecidable | manual | P | 36 | 18.0708 | 119 | 0.12 | 99 |
IV.TRIF.CHZ. | 2021-12-07T04:11:33.79 | 0.1 | undecidable | manual | P | 292 | 10.7781 | 133 | 0.14 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:1.6 | 0.000472 | 0.56 | AML | other | m | 2021-12-07T04:11:36.19 |
IV.RIBO.EHE.01 | ML:1.9 | 0.0007495000000000001 | 0.2 | AML | other | m | 2021-12-07T04:11:36.74 |
IV.RIBO.EHN.01 | ML:1.8 | 0.000617 | 0.18 | AML | other | m | 2021-12-07T04:11:36.73 |
IV.TRIF.CHE. | ML:1.6 | 0.0005095000000000001 | 0.54 | AML | other | m | 2021-12-07T04:11:36.62 |
IV.FROS.CHN. | ML:2.2 | 0.001335 | 0.38 | AML | other | m | 2021-12-07T04:11:37.75 |
IV.FROS.CHE. | ML:2.0 | 0.0008255000000000001 | 0.72 | AML | other | m | 2021-12-07T04:11:38.76 |
IV.CASP.HHE. | ML:1.8 | 0.0002755 | 0.26 | AML | other | m | 2021-12-07T04:11:42.23 |
IV.CASP.HHN. | ML:1.8 | 0.000268 | 0.26 | AML | other | m | 2021-12-07T04:11:42.18 |
IV.ARCI.HHN. | ML:1.6 | 0.000134 | 0.12 | AML | other | m | 2021-12-07T04:11:44.67 |
IV.ARCI.HHE. | ML:1.6 | 0.00013350000000000002 | 0.92 | AML | other | m | 2021-12-07T04:11:45.67 |