A magnitude ML 0.9 earthquake occured in region: 6 km S Montieri (GR), on
and geographic coordinates (lat, lon) 43.0790, 11.0230 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 | 11 | 8375 | 11482 |
Roccastrada | GR | 14 | 9199 | 20681 |
Monticiano | SI | 15 | 1571 | 22252 |
Monterotondo Marittimo | GR | 15 | 1371 | 23623 |
Castelnuovo di Val di Cecina | PI | 17 | 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 0.9 | 2021-09-18 06:07:09 |
43.0792 | 11.0233 | 10 | 2022-03-30 13:04:39 |
Bollettino Sismico Italiano INGV | 101586661 |
Reviewed Rev100 |
ML 0.9 | 2021-09-18 06:07:09 |
43.08 | 11.0177 | 10 | 2021-09-18 06:16:50 |
Sala Sismica INGV-Roma | 95574441 |
Field | Value |
---|---|
Time (UTC) | 2021-09-18 06:07:09 ± 0.19 |
Latitude | 43.0792 ± 0.0090 |
Longitude | 11.0233 ± 0.0160 |
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 | 101586661 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1149 |
Semi-minor axis of confidence ellipse (meter) | 1000 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 82 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1150.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 136 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.33 |
Epicentral distance of station closest to the epicenter (degree) | 0.09533 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31027 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 95574441 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-18 06:16:50 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 101586661 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-03-01 15:28:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CASP.HHZ. | 2021-09-18T06:07:20.60 | 0.3 | undecidable | manual | S | 202 | 34.4433 | 50 | -0.51 | 45 |
IV.FROS.CHZ. | 2021-09-18T06:07:16.00 | 0.6 | undecidable | manual | S | 37 | 18.0708 | 119 | -0.45 | 47 |
IV.CASP.HHZ. | 2021-09-18T06:07:16.32 | 0.3 | undecidable | manual | P | 202 | 34.4433 | 50 | 0.22 | 72 |
IV.RIBO.EHZ.01 | 2021-09-18T06:07:15.22 | 0.6 | undecidable | manual | S | 173 | 14.5743 | 125 | -0.21 | 50 |
IV.RIBO.EHZ.01 | 2021-09-18T06:07:13.06 | 0.3 | undecidable | manual | P | 173 | 14.5743 | 125 | 0.24 | 75 |
IV.FROS.CHZ. | 2021-09-18T06:07:13.61 | 0.3 | undecidable | manual | P | 37 | 18.0708 | 119 | 0.2 | 75 |
IV.TRIF.CHZ. | 2021-09-18T06:07:13.98 | 0.3 | undecidable | manual | S | 292 | 10.5783 | 134 | -0.37 | 49 |
IV.TRIF.CHZ. | 2021-09-18T06:07:12.44 | 0.1 | undecidable | manual | P | 292 | 10.5783 | 134 | 0.24 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:0.9 | 0.00009095 | 0.1 | AML | other | m | 2021-09-18T06:07:14.07 |
IV.TRIF.CHE. | ML:0.9 | 0.00009175 | 0.14 | AML | other | m | 2021-09-18T06:07:14.55 |
IV.RIBO.EHE.01 | ML:1.1 | 0.00011642127000000001 | 0.1824 | AML | other | m | 2021-09-18T06:07:15.31 |
IV.FROS.CHE. | ML:0.9 | 0.00007248406 | 0.1856 | AML | other | m | 2021-09-18T06:07:16.39 |
IV.CASP.HHN. | ML:0.8 | 0.000022599115 | 0 | AML | other | m | 2021-09-18T06:07:20.86 |