A magnitude ML 1.0 earthquake occured in region: 6 km S Montieri (GR), on
and geographic coordinates (lat, lon) 43.0790, 11.0210 at 10 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 | 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 | 19 | 8580 | 34434 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-09-18 09:21:37 |
43.0792 | 11.0207 | 10 | 2021-09-18 09:27:26 |
Sala Sismica INGV-Roma | 95578811 |
Field | Value |
---|---|
Time (UTC) | 2021-09-18 09:21:37 ± 0.2 |
Latitude | 43.0792 ± 0.0090 |
Longitude | 11.0207 ± 0.0148 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95578811 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1105 |
Semi-minor axis of confidence ellipse (meter) | 944 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 76 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1100.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 135 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.39 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.30937 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.0 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 95578811 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-18 09:27:26 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TST01.HHZ. | 2021-09-18T09:23:14.79 | 3.0 | undecidable | manual | Sg | 16 | 0 | |||
IV.ECTS.HHZ. | 2021-09-18T09:23:03.64 | 3.0 | positive | manual | Pn | -1.06 | 0 | |||
IV.LRP.EHZ. | 2021-09-18T09:23:02.01 | 3.0 | undecidable | manual | Sg | 13.49 | 0 | |||
IX.COL3.HHZ.02 | 2021-09-18T09:22:52.15 | 3.0 | positive | manual | Pg | 15.8 | 0 | |||
IV.CDRU.HNZ. | 2021-09-18T09:22:51.83 | 3.0 | undecidable | manual | Pg | 13.91 | 0 | |||
IV.TEOL.HHZ. | 2021-09-18T09:22:04.80 | 3.0 | undecidable | manual | Pg | 3.31 | 0 | |||
IV.PP3.EHZ. | 2021-09-18T09:22:03.70 | 3.0 | undecidable | manual | Pn | -0.97 | 0 | |||
IV.ZEN8.EHZ. | 2021-09-18T09:22:02.56 | 3.0 | undecidable | manual | Pn | -0.38 | 0 | |||
IV.ATPI.EHZ. | 2021-09-18T09:22:00.29 | 3.0 | undecidable | manual | Pg | 7.74 | 0 | |||
GU.RNCA.HHZ. | 2021-09-18T09:21:54.40 | 3.0 | undecidable | manual | Pn | 0.31 | 0 | |||
IV.CASP.HHZ. | 2021-09-18T09:21:48.57 | 0.1 | undecidable | manual | S | 202 | 34.3434 | 50 | -0.39 | 92 |
IV.CASP.HHZ. | 2021-09-18T09:21:44.37 | 0.3 | undecidable | manual | P | 202 | 34.3434 | 50 | 0.41 | 68 |
IV.FROS.CHZ. | 2021-09-18T09:21:44.01 | 0.3 | undecidable | manual | S | 37 | 18.1707 | 119 | -0.38 | 71 |
IV.RIBO.EHZ.01 | 2021-09-18T09:21:43.20 | 0.1 | undecidable | manual | S | 172 | 14.5743 | 125 | -0.14 | 100 |
IV.TRIF.CHZ. | 2021-09-18T09:21:41.97 | 0.1 | undecidable | manual | S | 293 | 10.3785 | 135 | -0.24 | 99 |
IV.RIBO.EHZ.01 | 2021-09-18T09:21:41.05 | 0.3 | undecidable | manual | P | 172 | 14.5743 | 125 | 0.33 | 72 |
IV.FROS.CHZ. | 2021-09-18T09:21:41.55 | 0.3 | undecidable | manual | P | 37 | 18.1707 | 119 | 0.22 | 73 |
IV.TRIF.CHZ. | 2021-09-18T09:21:40.39 | 0.1 | undecidable | manual | P | 293 | 10.3785 | 135 | 0.32 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:0.9 | 0.00010564999999999999 | 0.64 | AML | other | m | 2021-09-18T09:21:42.02 |
IV.TRIF.CHE. | ML:1.0 | 0.0001145 | 0.08 | AML | other | m | 2021-09-18T09:21:42.44 |
IV.FROS.CHN. | ML:1.0 | 0.0000745 | 0.82 | AML | other | m | 2021-09-18T09:21:44.52 |
IV.FROS.CHE. | ML:1.0 | 0.00007395000000000001 | 0.5 | AML | other | m | 2021-09-18T09:21:49.10 |