A magnitude ML 1.4 earthquake occured in region: 6 km N Montieri (GR), on
and geographic coordinates (lat, lon) 43.1830, 11.0220 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 | 6 | 1903 | 3107 |
Radicondoli | SI | 9 | 914 | 4021 |
Castelnuovo di Val di Cecina | PI | 10 | 2231 | 6252 |
Monticiano | SI | 14 | 1571 | 7823 |
Monterotondo Marittimo | GR | 14 | 1371 | 9194 |
Casole d'Elsa | SI | 18 | 3897 | 13091 |
Pomarance | PI | 18 | 5897 | 18988 |
Massa Marittima | GR | 18 | 8375 | 27363 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.4 | 2021-10-22 19:36:49 |
43.1828 | 11.0217 | 10 | 2021-10-22 19:40:45 |
Sala Sismica INGV-Roma | 96885791 |
Field | Value |
---|---|
Time (UTC) | 2021-10-22 19:36:49 ± 0.13 |
Latitude | 43.1828 ± 0.0090 |
Longitude | 11.0217 ± 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 | 96885791 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1490 |
Semi-minor axis of confidence ellipse (meter) | 329 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 309 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1490.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 153 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.28 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.46855 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96885791 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-22 19:40:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PARC.HHZ. | 2021-10-22T19:37:08.55 | 3.0 | undecidable | manual | P | -0.16 | 0 | |||
IV.CASP.HHZ. | 2021-10-22T19:37:03.89 | 0.3 | undecidable | manual | S | 196 | 45.3213 | 50 | -0.39 | 68 |
IV.OSSC.HHZ. | 2021-10-22T19:37:03.28 | 0.6 | undecidable | manual | S | 25 | 41.9247 | 50 | -0.08 | 49 |
IV.CSNT.HHZ. | 2021-10-22T19:37:02.06 | 0.6 | undecidable | manual | S | 34 | 38.8278 | 50 | -0.48 | 45 |
IV.ARCI.HHZ. | 2021-10-22T19:36:59.43 | 0.6 | positive | manual | P | 135 | 52.0035 | 50 | 0.38 | 45 |
IV.CASP.HHZ. | 2021-10-22T19:36:58.55 | 1.0 | positive | manual | P | 196 | 45.3213 | 50 | 0.53 | 22 |
IV.OSSC.HHZ. | 2021-10-22T19:36:57.80 | 1.0 | undecidable | manual | P | 25 | 41.9247 | 50 | 0.31 | 23 |
IV.CSNT.HHZ. | 2021-10-22T19:36:57.34 | 0.6 | negative | manual | P | 34 | 38.8278 | 50 | 0.33 | 46 |
IV.RIBO.EHZ.01 | 2021-10-22T19:36:55.15 | 0.6 | positive | manual | P | 176 | 26.0517 | 111 | 0.11 | 50 |
IV.FROS.CHZ. | 2021-10-22T19:36:54.15 | 0.6 | undecidable | manual | S | 75 | 11.2776 | 131 | -0.52 | 46 |
IV.TRIF.CHZ. | 2021-10-22T19:36:54.55 | 0.6 | undecidable | manual | S | 232 | 12.2766 | 129 | -0.37 | 48 |
IV.TRIF.CHZ. | 2021-10-22T19:36:52.80 | 0.1 | negative | manual | P | 232 | 12.2766 | 129 | 0.18 | 100 |
IV.FROS.CHZ. | 2021-10-22T19:36:52.67 | 0.1 | negative | manual | P | 75 | 11.2776 | 131 | 0.21 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHE. | ML:1.6 | 0.00045299999999999995 | 0.64 | AML | other | m | 2021-10-22T19:36:54.42 |
IV.FROS.CHN. | ML:1.4 | 0.000298 | 0.66 | AML | other | m | 2021-10-22T19:36:54.55 |
IV.TRIF.CHE. | ML:1.4 | 0.000251 | 1.28 | AML | other | m | 2021-10-22T19:36:55.12 |
IV.TRIF.CHN. | ML:1.4 | 0.00028849999999999997 | 0.8 | AML | other | m | 2021-10-22T19:36:55.41 |
IV.CASP.HHE. | ML:1.2 | 0.0000445 | 0.32 | AML | other | m | 2021-10-22T19:37:04.01 |
IV.CASP.HHN. | ML:1.3 | 0.00006375 | 0.2 | AML | other | m | 2021-10-22T19:37:04.31 |