A magnitude ML 1.3 earthquake occured in region: 6 km NW Chiusdino (SI), on
and geographic coordinates (lat, lon) 43.1950, 11.0440 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 |
---|---|---|---|---|
Chiusdino | SI | 6 | 1903 | 1903 |
Montieri | GR | 7 | 1204 | 3107 |
Radicondoli | SI | 8 | 914 | 4021 |
Castelnuovo di Val di Cecina | PI | 11 | 2231 | 6252 |
Monticiano | SI | 13 | 1571 | 7823 |
Monterotondo Marittimo | GR | 16 | 1371 | 9194 |
Casole d'Elsa | SI | 16 | 3897 | 13091 |
Sovicille | SI | 18 | 10116 | 23207 |
Pomarance | PI | 18 | 5897 | 29104 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.3 | 2021-04-04 13:13:35 |
43.1947 | 11.0442 | 9 | 2021-07-12 16:55:13 |
Bollettino Sismico Italiano INGV | 90642311 |
Reviewed Rev100 |
ML 1.4 | 2021-04-04 13:13:35 |
43.2122 | 11.0297 | 7 | 2021-04-04 13:20:56 |
Sala Sismica INGV-Roma | 88766151 |
Field | Value |
---|---|
Time (UTC) | 2021-04-04 13:13:35 ± 0.15 |
Latitude | 43.1947 ± 0.0144 |
Longitude | 11.0442 ± 0.0185 |
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 | 90642311 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2039 |
Semi-minor axis of confidence ellipse (meter) | 274 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 137 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2040.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 161 |
Number of associated phases, regardless of their use for origin computation | 19 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.32 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.42448 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.4 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 90642311 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-05-30 23:44:30 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 88766151 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-04 13:20:56 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.USI.HHZ. | 2021-04-04T13:15:30.66 | 3.0 | undecidable | manual | Sn | -6.47 | 0 | |||
IV.ENIC.HHZ. | 2021-04-04T13:15:14.14 | 3.0 | negative | manual | Pg | 10.07 | 0 | |||
IV.PAOL.HHZ. | 2021-04-04T13:15:09.07 | 3.0 | undecidable | manual | Sg | 4.84 | 0 | |||
IV.PTRJ.HNZ. | 2021-04-04T13:15:03.01 | 3.0 | undecidable | manual | Sg | 4.2 | 0 | |||
IV.CAGR.HHZ. | 2021-04-04T13:15:01.53 | 3.0 | undecidable | manual | Pn | -0.17 | 0 | |||
IV.TEOL.HHZ. | 2021-04-04T13:14:45.31 | 3.0 | undecidable | manual | Sg | 0.73 | 0 | |||
IV.VVLD.HHZ. | 2021-04-04T13:14:39.37 | 3.0 | undecidable | manual | Sg | 1.23 | 0 | |||
IV.PAOL.HHZ. | 2021-04-04T13:14:22.05 | 3.0 | undecidable | manual | Pn | -2.03 | 0 | |||
IV.MBAL.EHZ. | 2021-04-04T13:14:17.94 | 3.0 | positive | manual | Pn | 0.51 | 0 | |||
IT.RMVT.HGZ. | 2021-04-04T13:14:15.67 | 3.0 | undecidable | manual | S | -5.1 | 0 | |||
IV.POFI.HHZ. | 2021-04-04T13:14:10.14 | 3.0 | undecidable | manual | Pn | -1.2 | 0 | |||
IV.CASP.HHZ. | 2021-04-04T13:13:50.11 | 0.6 | undecidable | manual | S | 198 | 47.1195 | 50 | -0.5 | 43 |
IV.CSNT.HHZ. | 2021-04-04T13:13:47.63 | 0.3 | undecidable | manual | S | 33 | 36.741 | 50 | -0.21 | 70 |
IV.CASP.HHZ. | 2021-04-04T13:13:44.57 | 0.3 | undecidable | manual | P | 198 | 47.1195 | 50 | 0.51 | 65 |
IV.CSNT.HHZ. | 2021-04-04T13:13:42.54 | 0.1 | positive | manual | P | 33 | 36.741 | 50 | 0.08 | 96 |
IV.TRIF.CHZ. | 2021-04-04T13:13:40.69 | 0.6 | undecidable | manual | S | 232 | 14.4744 | 122 | -0.32 | 48 |
IV.FROS.CHZ. | 2021-04-04T13:13:39.36 | 0.3 | undecidable | manual | S | 80 | 9.1797 | 134 | -0.2 | 74 |
IV.TRIF.CHZ. | 2021-04-04T13:13:38.61 | 0.1 | undecidable | manual | P | 232 | 14.4744 | 122 | 0.09 | 100 |
IV.FROS.CHZ. | 2021-04-04T13:13:37.87 | 0.1 | positive | manual | P | 80 | 9.1797 | 134 | 0.19 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHN. | ML:1.5 | 0.000406 | 0.32 | AML | other | m | 2021-04-04T13:13:39.67 |
IV.TRIF.CHN. | ML:1.5 | 0.0003095 | 1.42 | AML | other | m | 2021-04-04T13:13:40.85 |
IV.TRIF.CHE. | ML:1.6 | 0.000371 | 0.56 | AML | other | m | 2021-04-04T13:13:41.40 |
IV.FROS.CHE. | ML:1.3 | 0.0002605 | 1.24 | AML | other | m | 2021-04-04T13:13:41.73 |
IV.CSNT.HHN. | ML:0.4 | 0.000009744769 | 1.2448 | AML | other | m | 2021-04-04T13:13:47.19 |
IV.CSNT.HHE. | ML:0.4 | 0.0000111350375 | 0.1216 | AML | other | m | 2021-04-04T13:13:48.10 |