A magnitude ML 1.1 earthquake occured in region: 7 km S Montieri (GR), on
and geographic coordinates (lat, lon) 43.0710, 11.0250 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 | 7 | 1204 | 1204 |
Chiusdino | SI | 11 | 1903 | 3107 |
Massa Marittima | GR | 11 | 8375 | 11482 |
Roccastrada | GR | 13 | 9199 | 20681 |
Monticiano | SI | 15 | 1571 | 22252 |
Monterotondo Marittimo | GR | 16 | 1371 | 23623 |
Castelnuovo di Val di Cecina | PI | 18 | 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 1.1 | 2021-09-27 17:21:54 |
43.0708 | 11.0247 | 10 | 2021-09-27 17:25:43 |
Sala Sismica INGV-Roma | 95954541 |
Field | Value |
---|---|
Time (UTC) | 2021-09-27 17:21:54 ± 0.18 |
Latitude | 43.0708 ± 0.0090 |
Longitude | 11.0247 ± 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 | 95954541 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1111 |
Semi-minor axis of confidence ellipse (meter) | 1033 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 300 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1110.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 99 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.41 |
Epicentral distance of station closest to the epicenter (degree) | 0.09893 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39570 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 95954541 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-27 17:25:43 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARCI.HHZ. | 2021-09-27T17:22:08.37 | 0.1 | undecidable | manual | S | 123 | 43.9227 | 50 | -0.45 | 90 |
IV.CASP.HHZ. | 2021-09-27T17:22:05.84 | 0.3 | undecidable | manual | S | 203 | 33.6441 | 50 | -0.24 | 72 |
IV.ARCI.HHZ. | 2021-09-27T17:22:03.43 | 0.6 | positive | manual | P | 123 | 43.9227 | 50 | 0.69 | 41 |
IV.CASP.HHZ. | 2021-09-27T17:22:01.65 | 0.6 | undecidable | manual | P | 203 | 33.6441 | 50 | 0.49 | 45 |
IV.FROS.CHZ. | 2021-09-27T17:22:01.37 | 0.6 | undecidable | manual | S | 35 | 18.7701 | 119 | -0.47 | 47 |
IV.RIBO.EHZ.01 | 2021-09-27T17:22:00.17 | 0.1 | undecidable | manual | S | 173 | 13.6752 | 127 | -0.18 | 100 |
IV.FROS.CHZ. | 2021-09-27T17:21:59.02 | 0.1 | positive | manual | P | 35 | 18.7701 | 119 | 0.31 | 97 |
IV.TRIF.CHZ. | 2021-09-27T17:21:59.30 | 0.1 | undecidable | manual | S | 296 | 10.9779 | 133 | -0.35 | 97 |
IV.RIBO.EHZ.01 | 2021-09-27T17:21:58.35 | 0.3 | undecidable | manual | P | 173 | 13.6752 | 127 | 0.5 | 70 |
IV.TRIF.CHZ. | 2021-09-27T17:21:57.79 | 0.6 | positive | manual | P | 296 | 10.9779 | 133 | 0.34 | 49 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHE. | ML:1.0 | 0.000121 | 0.78 | AML | other | m | 2021-09-27T17:21:59.84 |
IV.TRIF.CHN. | ML:0.9 | 0.00008995 | 0.08 | AML | other | m | 2021-09-27T17:22:00.18 |
IV.FROS.CHN. | ML:1.4 | 0.00021799999999999999 | 0.4 | AML | other | m | 2021-09-27T17:22:01.93 |
IV.FROS.CHE. | ML:1.3 | 0.0001595 | 0.66 | AML | other | m | 2021-09-27T17:22:02.74 |
IV.CASP.HHE. | ML:1.0 | 0.0000402 | 0.24 | AML | other | m | 2021-09-27T17:22:06.21 |
IV.CASP.HHN. | ML:1.0 | 0.000040300000000000004 | 0.62 | AML | other | m | 2021-09-27T17:22:06.16 |