A magnitude ML 1.1 earthquake occured in region: 2 km S Chiusdino (SI), on
and geographic coordinates (lat, lon) 43.1420, 11.0840 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 |
---|---|---|---|---|
Chiusdino | SI | 2 | 1903 | 1903 |
Montieri | GR | 6 | 1204 | 3107 |
Monticiano | SI | 8 | 1571 | 4678 |
Radicondoli | SI | 14 | 914 | 5592 |
Roccastrada | GR | 16 | 9199 | 14791 |
Castelnuovo di Val di Cecina | PI | 16 | 2231 | 17022 |
Monterotondo Marittimo | GR | 18 | 1371 | 18393 |
Massa Marittima | GR | 19 | 8375 | 26768 |
Sovicille | SI | 19 | 10116 | 36884 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2020-05-20 04:19:56 |
43.1423 | 11.0837 | 10 | 2020-05-20 04:26:46 |
Sala Sismica INGV-Roma | 79353171 |
Field | Value |
---|---|
Time (UTC) | 2020-05-20 04:19:56 ± 0.16 |
Latitude | 43.1423 ± 0.0099 |
Longitude | 11.0837 ± 0.0123 |
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 | 79353171 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1155 |
Semi-minor axis of confidence ellipse (meter) | 691 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 326 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1160.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 140 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.08544 |
Epicentral distance of station farthest from the epicenter (degree) | 0.40739 |
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 | 0.4 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 79353171 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-05-20 04:26:46 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARCI.HHZ. | 2020-05-20T04:20:11.43 | 0.6 | undecidable | manual | S | 135 | 45.2214 | 50 | -0.42 | 45 |
IV.CASP.HHZ. | 2020-05-20T04:20:10.94 | 0.3 | undecidable | manual | S | 205 | 42.8238 | 50 | -0.26 | 70 |
IV.ARCI.HHZ. | 2020-05-20T04:20:06.14 | 1.0 | undecidable | manual | P | 135 | 45.2214 | 50 | 0.58 | 21 |
IV.CASP.HHZ. | 2020-05-20T04:20:05.64 | 0.6 | undecidable | manual | P | 205 | 42.8238 | 50 | 0.45 | 45 |
IV.RIBO.EHZ.01 | 2020-05-20T04:20:05.21 | 0.3 | undecidable | manual | S | 188 | 21.6672 | 114 | 0.02 | 76 |
IV.TRIF.CHZ. | 2020-05-20T04:20:02.80 | 0.3 | undecidable | manual | S | 258 | 14.9739 | 123 | -0.34 | 72 |
IV.RIBO.EHZ.01 | 2020-05-20T04:20:02.16 | 1.0 | undecidable | manual | P | 188 | 21.6672 | 114 | 0.44 | 23 |
IV.FROS.CHZ. | 2020-05-20T04:20:01.35 | 0.3 | undecidable | manual | S | 38 | 9.4794 | 135 | -0.3 | 73 |
IV.TRIF.CHZ. | 2020-05-20T04:20:00.75 | 0.1 | negative | manual | P | 258 | 14.9739 | 123 | 0.22 | 98 |
IV.FROS.CHZ. | 2020-05-20T04:19:59.86 | 0.1 | positive | manual | P | 38 | 9.4794 | 135 | 0.18 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHE. | ML:1.5 | 0.0004324306 | 0.112 | AML | other | m | 2020-05-20T04:20:01.69 |
IV.FROS.CHN. | ML:1.4 | 0.00031070185 | 0.1376 | AML | other | m | 2020-05-20T04:20:01.56 |
IV.TRIF.CHE. | ML:1.5 | 0.00028093260000000006 | 0.1024 | AML | other | m | 2020-05-20T04:20:02.99 |
IV.TRIF.CHN. | ML:1.5 | 0.0003374918 | 0.096 | AML | other | m | 2020-05-20T04:20:02.88 |
IV.RIBO.EHE.01 | ML:0.6 | 0.00002966384 | 0.1408 | AML | other | m | 2020-05-20T04:20:05.39 |
IV.CASP.HHN. | ML:0.9 | 0.000023797675 | 0.08 | AML | other | m | 2020-05-20T04:20:11.24 |
IV.CASP.HHE. | ML:1.0 | 0.000037154374999999996 | 0.1216 | AML | other | m | 2020-05-20T04:20:10.00 |
IV.ARCI.HHE. | ML:0.7 | 0.0000169239575 | 2.16 | AML | other | m | 2020-05-20T04:20:11.79 |
IV.ARCI.HHN. | ML:0.7 | 0.000014328359999999999 | 1.28 | AML | other | m | 2020-05-20T04:20:11.21 |