A magnitude ML 2.1 earthquake occured in region: 7 km SE Montieri (GR), on
and geographic coordinates (lat, lon) 43.0740, 11.0440 at 9 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 | 7 | 1204 | 1204 |
Chiusdino | SI | 10 | 1903 | 3107 |
Roccastrada | GR | 12 | 9199 | 12306 |
Massa Marittima | GR | 13 | 8375 | 20681 |
Monticiano | SI | 13 | 1571 | 22252 |
Monterotondo Marittimo | GR | 17 | 1371 | 23623 |
Castelnuovo di Val di Cecina | PI | 19 | 2231 | 25854 |
Gavorrano | GR | 20 | 8580 | 34434 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 2.1 | 2021-09-18 05:04:10 |
43.0735 | 11.0437 | 9 | 2022-03-30 13:04:07 |
Bollettino Sismico Italiano INGV | 95667511 |
Field | Value |
---|---|
Time (UTC) | 2021-09-18 05:04:10 ± 0.14 |
Latitude | 43.0735 ± 0.0072 |
Longitude | 11.0437 ± 0.0135 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95667511 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1016 |
Semi-minor axis of confidence ellipse (meter) | 820 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 275 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1020.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 54 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.48 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 1.26355 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 95667511 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-09-20 14:54:08 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PP3.EHZ. | 2021-09-18T05:05:11.09 | 3.0 | undecidable | manual | Pn | 0.95 | 0 | |||
IV.GIUL.HHZ. | 2021-09-18T05:04:51.90 | 3.0 | negative | manual | Pg | 3.89 | 0 | |||
IV.BRIS.HHZ. | 2021-09-18T05:04:34.17 | 0.3 | undecidable | manual | P | 24 | 140.2485 | 50 | 0.87 | 46 |
TV.SF04.EHZ. | 2021-09-18T05:04:27.11 | 0.3 | undecidable | manual | S | 118 | 56.5989 | 50 | -0.9 | 53 |
IV.CSNT.HHZ. | 2021-09-18T05:04:25.13 | 0.3 | undecidable | manual | S | 24 | 48.618 | 50 | -0.74 | 58 |
IV.CAFI.HHZ. | 2021-09-18T05:04:24.52 | 0.3 | undecidable | manual | P | 69 | 79.8645 | 50 | 0.54 | 59 |
IV.CELB.HHZ. | 2021-09-18T05:04:24.39 | 0.1 | undecidable | manual | P | 242 | 76.7676 | 50 | 0.88 | 69 |
IV.PII.HHZ. | 2021-09-18T05:04:24.70 | 0.3 | undecidable | manual | P | 330 | 83.1501 | 50 | 0.2 | 64 |
IV.ARCI.HHZ. | 2021-09-18T05:04:23.57 | 0.3 | undecidable | manual | S | 125 | 42.8238 | 50 | -0.75 | 58 |
IV.CASP.HHZ. | 2021-09-18T05:04:21.24 | 0.3 | undecidable | manual | S | 205 | 34.5432 | 50 | -0.88 | 56 |
TV.SF04.EHZ. | 2021-09-18T05:04:20.89 | 0.1 | negative | manual | P | 118 | 56.5989 | 50 | 0.49 | 84 |
IV.CSNT.HHZ. | 2021-09-18T05:04:19.30 | 0.3 | undecidable | manual | P | 24 | 48.618 | 50 | 0.13 | 69 |
IV.OSSC.HHZ. | 2021-09-18T05:04:19.96 | 0.3 | undecidable | manual | P | 18 | 52.503 | 50 | 0.19 | 68 |
IV.ARCI.HHZ. | 2021-09-18T05:04:18.53 | 0.1 | negative | manual | P | 125 | 42.8238 | 50 | 0.25 | 91 |
IV.FROS.CHZ. | 2021-09-18T05:04:16.45 | 0.3 | undecidable | manual | S | 31 | 17.6712 | 118 | -0.48 | 68 |
IV.CASP.HHZ. | 2021-09-18T05:04:16.93 | 0.6 | undecidable | manual | P | 205 | 34.5432 | 50 | -0.08 | 48 |
IV.RIBO.EHZ.01 | 2021-09-18T05:04:15.84 | 0.1 | undecidable | manual | S | 179 | 13.7751 | 124 | 0.06 | 99 |
IV.FROS.CHZ. | 2021-09-18T05:04:14.23 | 0.1 | undecidable | manual | P | 31 | 17.6712 | 118 | 0.22 | 95 |
IV.TRIF.CHZ. | 2021-09-18T05:04:14.66 | 0.1 | undecidable | manual | S | 292 | 12.2766 | 127 | -0.69 | 84 |
IV.RIBO.EHZ.01 | 2021-09-18T05:04:13.62 | 0.1 | undecidable | manual | P | 179 | 13.7751 | 124 | 0.27 | 95 |
IV.TRIF.CHZ. | 2021-09-18T05:04:13.06 | 0.1 | undecidable | manual | P | 292 | 12.2766 | 127 | -0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHE. | ML:2.4 | 0.00263 | 0.24 | AML | other | m | 2021-09-18T05:04:14.79 |
IV.TRIF.CHN. | ML:2.3 | 0.0022199999999999998 | 1.18 | AML | other | m | 2021-09-18T05:04:15.87 |
IV.FROS.CHN. | ML:2.1 | 0.0010590000000000003 | 1.78 | AML | other | m | 2021-09-18T05:04:17.99 |
IV.FROS.CHE. | ML:1.9 | 0.0006779999999999999 | 0.22 | AML | other | m | 2021-09-18T05:04:17.65 |
IV.CASP.HNN. | ML:2.4 | 0.000968 | 0.32 | AML | other | m | 2021-09-18T05:04:21.48 |
IV.CASP.HHE. | ML:2.4 | 0.001002 | 0.34 | AML | other | m | 2021-09-18T05:04:21.52 |
IV.CASP.HNE. | ML:2.4 | 0.0009865 | 0.1 | AML | other | m | 2021-09-18T05:04:21.52 |
IV.CASP.HHN. | ML:2.3 | 0.000841 | 0.18 | AML | other | m | 2021-09-18T05:04:21.48 |
IV.ARCI.HHE. | ML:1.9 | 0.00023999999999999998 | 0.6 | AML | other | m | 2021-09-18T05:04:23.86 |
IV.ARCI.HHN. | ML:1.9 | 0.0002535 | 1.32 | AML | other | m | 2021-09-18T05:04:23.86 |
IV.CELB.HHE. | ML:2.0 | 0.0001655 | 0.3 | AML | other | m | 2021-09-18T05:04:35.27 |
IV.CELB.HHN. | ML:1.8 | 0.0000957 | 0.78 | AML | other | m | 2021-09-18T05:04:36.34 |