A magnitude ML 0.5 earthquake occured in region: 7 km SW Radicondoli (SI), on
and geographic coordinates (lat, lon) 43.2070, 11.0010 at 9 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 |
---|---|---|---|---|
Radicondoli | SI | 7 | 914 | 914 |
Castelnuovo di Val di Cecina | PI | 8 | 2231 | 3145 |
Montieri | GR | 9 | 1204 | 4349 |
Chiusdino | SI | 9 | 1903 | 6252 |
Monterotondo Marittimo | GR | 14 | 1371 | 7623 |
Pomarance | PI | 15 | 5897 | 13520 |
Casole d'Elsa | SI | 15 | 3897 | 17417 |
Monticiano | SI | 16 | 1571 | 18988 |
Massa Marittima | GR | 20 | 8375 | 27363 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2021-04-16 02:16:42 |
43.2067 | 11.0007 | 9 | 2021-04-16 02:26:29 |
Sala Sismica INGV-Roma | 89131921 |
Field | Value |
---|---|
Time (UTC) | 2021-04-16 02:16:42 ± 0.16 |
Latitude | 43.2067 ± 0.0117 |
Longitude | 11.0007 ± 0.0099 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89131921 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1173 |
Semi-minor axis of confidence ellipse (meter) | 793 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 179 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1170.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 113 |
Number of associated phases, regardless of their use for origin computation | 15 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.57017 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 89131921 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-16 02:26:29 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VOBA.EHZ. | 2021-04-16T02:17:00.41 | 3.0 | negative | manual | Pg | 0.47 | 0 | |||
IV.SF14.HHZ. | 2021-04-16T02:16:54.80 | 3.0 | undecidable | manual | S | 0 | ||||
IV.CSNT.HHN. | 2021-04-16T02:16:54.68 | 0.3 | undecidable | manual | S | 38 | 37.629 | 50 | -0.77 | 60 |
TV.SF01.EHE. | 2021-04-16T02:16:54.21 | 0.3 | undecidable | manual | P | 134 | 63.2922 | 50 | 0.32 | 66 |
IV.MAGO.CHE. | 2021-04-16T02:16:52.58 | 0.3 | undecidable | manual | S | 285 | 28.6491 | 107 | -0.28 | 71 |
IV.CSNT.HHN. | 2021-04-16T02:16:50.24 | 0.3 | undecidable | manual | P | 38 | 37.629 | 50 | 0.29 | 69 |
IV.SF14.HHZ. | 2021-04-16T02:16:50.60 | 3.0 | undecidable | manual | P | 0 | ||||
IV.RIBO.EHZ.01 | 2021-04-16T02:16:48.24 | 0.3 | undecidable | manual | P | 173 | 28.8489 | 107 | -0.24 | 71 |
IV.MAGO.CHE. | 2021-04-16T02:16:48.92 | 0.1 | undecidable | manual | P | 285 | 28.6491 | 107 | 0.47 | 90 |
IV.FROS.CHZ. | 2021-04-16T02:16:47.66 | 0.1 | undecidable | manual | S | 88 | 12.5763 | 125 | -0.13 | 100 |
IV.TRIF.CHZ. | 2021-04-16T02:16:47.47 | 0.1 | undecidable | manual | S | 218 | 12.876 | 125 | -0.41 | 94 |
IV.FROS.CHZ. | 2021-04-16T02:16:45.81 | 0.1 | undecidable | manual | P | 88 | 12.5763 | 125 | 0.28 | 97 |
IV.TRIF.CHZ. | 2021-04-16T02:16:45.82 | 0.1 | undecidable | manual | P | 218 | 12.876 | 125 | 0.24 | 98 |
IV.ARCI.HHZ. | 2021-04-16T02:16:45.15 | 3.0 | undecidable | manual | P | 0 | ||||
IV.FIR.HHZ. | 2021-04-16T02:16:40.61 | 3.0 | negative | manual | P | -0.43 | 0 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:0.6 | 0.000046399999999999996 | 0.14 | AML | other | m | 2021-04-16T02:16:47.87 |
IV.TRIF.CHE. | ML:0.6 | 0.00004199538 | 0.312 | AML | other | m | 2021-04-16T02:16:47.54 |
IV.FROS.CHE. | ML:0.4 | 0.00002781872 | 2.768 | AML | other | m | 2021-04-16T02:16:47.66 |
IV.FROS.CHN. | ML:0.6 | 0.00004734076 | 1.328 | AML | other | m | 2021-04-16T02:16:48.50 |