A magnitude ML 1.5 earthquake occured in region: 6 km S Montieri (GR), on
and geographic coordinates (lat, lon) 43.0790, 11.0320 at 11 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 | 13 | 9199 | 20681 |
Monticiano | SI | 14 | 1571 | 22252 |
Monterotondo Marittimo | GR | 16 | 1371 | 23623 |
Castelnuovo di Val di Cecina | PI | 18 | 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 1.5 | 2021-09-18 06:47:30 |
43.079 | 11.0322 | 11 | 2022-03-30 13:04:07 |
Bollettino Sismico Italiano INGV | 95691581 |
Reviewed Rev100 |
ML 1.5 | 2021-09-18 06:47:30 |
43.0783 | 11.0137 | 10 | 2021-09-18 06:53:13 |
Sala Sismica INGV-Roma | 95575521 |
Field | Value |
---|---|
Time (UTC) | 2021-09-18 06:47:30 ± 0.14 |
Latitude | 43.0790 ± 0.0072 |
Longitude | 11.0322 ± 0.0123 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95691581 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 949 |
Semi-minor axis of confidence ellipse (meter) | 759 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 276 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 950.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 83 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.45 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.68708 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 95691581 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-09-21 09:05:32 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 95575521 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-18 06:53:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.IMOL.EHZ. | 2021-09-18T06:48:13.81 | 3.0 | undecidable | manual | S | -1.91 | 0 | |||
TV.SF04.EHZ. | 2021-09-18T06:47:47.92 | 0.3 | undecidable | manual | S | 118 | 57.6978 | 50 | -0.87 | 54 |
IV.OSSC.HHE. | 2021-09-18T06:47:47.45 | 0.3 | undecidable | manual | S | 19 | 52.2033 | 50 | 0.12 | 69 |
IV.CSNT.HHZ. | 2021-09-18T06:47:46.05 | 0.3 | undecidable | manual | S | 25 | 48.4182 | 50 | -0.26 | 67 |
IV.CELB.HHZ. | 2021-09-18T06:47:45.20 | 0.3 | undecidable | manual | P | 241 | 76.2681 | 50 | 1.14 | 46 |
IV.ARCI.HHZ. | 2021-09-18T06:47:44.52 | 0.3 | undecidable | manual | S | 125 | 43.9227 | 50 | -0.59 | 62 |
IV.CASP.HHZ. | 2021-09-18T06:47:42.15 | 0.6 | undecidable | manual | S | 203 | 34.743 | 50 | -0.5 | 44 |
IV.MAGO.CHE. | 2021-09-18T06:47:42.30 | 0.3 | undecidable | manual | S | 306 | 37.1295 | 50 | -1 | 53 |
TV.SF04.EHZ. | 2021-09-18T06:47:41.79 | 0.1 | undecidable | manual | P | 118 | 57.6978 | 50 | 0.59 | 81 |
IV.CSNT.HHZ. | 2021-09-18T06:47:40.23 | 0.3 | undecidable | manual | P | 25 | 48.4182 | 50 | 0.46 | 64 |
IV.OSSC.HHE. | 2021-09-18T06:47:40.94 | 0.3 | undecidable | manual | P | 19 | 52.2033 | 50 | 0.58 | 62 |
IV.ARCI.HHZ. | 2021-09-18T06:47:39.38 | 0.3 | undecidable | manual | P | 125 | 43.9227 | 50 | 0.3 | 67 |
IV.MAGO.CHE. | 2021-09-18T06:47:38.15 | 0.3 | undecidable | manual | P | 306 | 37.1295 | 50 | 0.12 | 71 |
IV.CASP.HHZ. | 2021-09-18T06:47:37.77 | 0.3 | undecidable | manual | P | 203 | 34.743 | 50 | 0.11 | 71 |
IV.FROS.CHZ. | 2021-09-18T06:47:37.62 | 0.1 | undecidable | manual | S | 35 | 17.6712 | 121 | -0.38 | 92 |
IV.RIBO.EHZ.01 | 2021-09-18T06:47:36.75 | 0.6 | undecidable | manual | S | 175 | 14.4744 | 127 | -0.34 | 47 |
IV.FROS.CHZ. | 2021-09-18T06:47:35.22 | 0.1 | undecidable | manual | P | 35 | 17.6712 | 121 | 0.25 | 95 |
IV.TRIF.CHZ. | 2021-09-18T06:47:35.52 | 0.6 | undecidable | manual | S | 291 | 11.1777 | 134 | -0.7 | 42 |
IV.TRIF.CHZ. | 2021-09-18T06:47:34.00 | 0.1 | undecidable | manual | P | 291 | 11.1777 | 134 | 0.05 | 100 |
IV.RIBO.EHZ.01 | 2021-09-18T06:47:34.64 | 0.1 | positive | manual | P | 175 | 14.4744 | 127 | 0.19 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:1.5 | 0.0003455 | 0.28 | AML | other | m | 2021-09-18T06:47:35.64 |
IV.TRIF.CHE. | ML:1.5 | 0.0003845 | 0.14 | AML | other | m | 2021-09-18T06:47:36.11 |
IV.FROS.CHE. | ML:1.7 | 0.00040149999999999995 | 1.82 | AML | other | m | 2021-09-18T06:47:38.94 |
IV.FROS.CHN. | ML:1.8 | 0.0005254999999999999 | 1.6 | AML | other | m | 2021-09-18T06:47:38.93 |
IV.CASP.HHN. | ML:1.6 | 0.00014850000000000003 | 0.2 | AML | other | m | 2021-09-18T06:47:42.42 |
IV.CASP.HHE. | ML:1.5 | 0.0001281 | 0.64 | AML | other | m | 2021-09-18T06:47:42.46 |
IV.ARCI.HHN. | ML:1.3 | 0.0000625 | 0.12 | AML | other | m | 2021-09-18T06:47:44.89 |
IV.ARCI.HHE. | ML:1.3 | 0.0000631 | 0.56 | AML | other | m | 2021-09-18T06:47:45.43 |