A magnitude ML 1.4 earthquake occured in region: 1 km NW Montieri (GR), on
and geographic coordinates (lat, lon) 43.1390, 11.0040 at 9 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 | 1 | 1204 | 1204 |
Chiusdino | SI | 7 | 1903 | 3107 |
Castelnuovo di Val di Cecina | PI | 11 | 2231 | 5338 |
Monterotondo Marittimo | GR | 12 | 1371 | 6709 |
Massa Marittima | GR | 14 | 8375 | 15084 |
Radicondoli | SI | 14 | 914 | 15998 |
Monticiano | SI | 14 | 1571 | 17569 |
Roccastrada | GR | 19 | 9199 | 26768 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.4 | 2021-10-04 11:18:02 |
43.139 | 11.0035 | 9 | 2022-03-30 13:04:13 |
Bollettino Sismico Italiano INGV | 96975971 |
Reviewed Rev100 |
ML 1.6 | 2021-10-04 11:18:02 |
43.1393 | 11.004 | 9 | 2021-10-04 12:49:45 |
Sala Sismica INGV-Roma | 96205461 |
Field | Value |
---|---|
Time (UTC) | 2021-10-04 11:18:02 ± 0.11 |
Latitude | 43.1390 ± 0.0090 |
Longitude | 11.0035 ± 0.0111 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 96975971 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1192 |
Semi-minor axis of confidence ellipse (meter) | 638 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 320 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1190.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 133 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.07734 |
Epicentral distance of station farthest from the epicenter (degree) | 0.60974 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.4 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 96975971 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-10-25 08:14:54 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.4 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96205461 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-04 12:49:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CASP.HHZ. | 2021-10-04T11:18:15.00 | 0.3 | undecidable | manual | S | 196 | 40.2264 | 50 | -0.89 | 56 |
TV.SF03.EHZ. | 2021-10-04T11:18:14.35 | 0.1 | undecidable | manual | P | 124 | 66.7776 | 50 | 0.16 | 89 |
TV.SF14.HHE. | 2021-10-04T11:18:14.13 | 0.1 | undecidable | manual | P | 130 | 65.3901 | 50 | 0.15 | 89 |
IV.MCIV.CHE. | 2021-10-04T11:18:14.54 | 0.3 | undecidable | manual | P | 126 | 67.6767 | 50 | 0.2 | 66 |
TV.SF04.EHZ. | 2021-10-04T11:18:13.75 | 0.1 | undecidable | manual | P | 122 | 63.0924 | 50 | 0.13 | 90 |
TV.SF11.HHE. | 2021-10-04T11:18:13.57 | 0.3 | undecidable | manual | P | 118 | 62.493 | 50 | 0.04 | 69 |
IV.OSSC.HHZ. | 2021-10-04T11:18:11.11 | 0.1 | undecidable | manual | P | 25 | 46.9197 | 50 | -0.02 | 95 |
IV.ARCI.HNZ. | 2021-10-04T11:18:11.58 | 0.1 | undecidable | manual | P | 130 | 49.8168 | 50 | 0 | 95 |
IV.CSNT.HHZ. | 2021-10-04T11:18:10.57 | 0.3 | undecidable | manual | P | 32 | 43.7229 | 50 | -0.06 | 71 |
IV.CASP.HHZ. | 2021-10-04T11:18:10.16 | 0.1 | undecidable | manual | P | 196 | 40.2264 | 50 | 0.06 | 95 |
IV.RIBO.EHE.01 | 2021-10-04T11:18:09.96 | 3.0 | undecidable | manual | P | 171 | 21.6672 | 113 | 3.05 | 0 |
IV.FROS.CHZ. | 2021-10-04T11:18:07.60 | 0.3 | undecidable | manual | S | 58 | 14.6742 | 121 | -0.53 | 68 |
IV.TRIF.CHZ. | 2021-10-04T11:18:06.30 | 0.3 | undecidable | manual | S | 252 | 8.5803 | 136 | -0.17 | 74 |
IV.FROS.CHZ. | 2021-10-04T11:18:05.67 | 0.1 | positive | manual | P | 58 | 14.6742 | 121 | 0.05 | 100 |
IV.TRIF.CHZ. | 2021-10-04T11:18:05.06 | 0.1 | undecidable | manual | P | 252 | 8.5803 | 136 | 0.39 | 94 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:2.2 | 0.0024256869999999997 | 0.1024 | AML | other | m | 2021-10-04T11:18:06.69 |
IV.TRIF.CHE. | ML:2.1 | 0.0017403755000000001 | 0.0704 | AML | other | m | 2021-10-04T11:18:06.95 |
IV.FROS.CHE. | ML:1.5 | 0.0003552895 | 0.1088 | AML | other | m | 2021-10-04T11:18:08.00 |
IV.FROS.CHN. | ML:1.5 | 0.000324481 | 0.1472 | AML | other | m | 2021-10-04T11:18:08.28 |
IV.CSNT.HHN. | ML:0.7 | 0.00001336118 | 0.224 | AML | other | m | 2021-10-04T11:18:19.72 |
TV.SF04.EHN. | ML:1.4 | 0.000048525285 | 0.16 | AML | other | m | 2021-10-04T11:18:14.56 |
IV.CSNT.HHE. | ML:0.7 | 0.000015555195 | 0.4416 | AML | other | m | 2021-10-04T11:18:10.34 |
TV.SF04.EHE. | ML:1.3 | 0.00003820038 | 3.1232 | AML | other | m | 2021-10-04T11:18:39.41 |