A magnitude ML 1.8 earthquake occured in region: 3 km SE Chiusdino (SI), on
and geographic coordinates (lat, lon) 43.1350, 11.1010 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 | 3 | 1903 | 1903 |
Monticiano | SI | 7 | 1571 | 3474 |
Montieri | GR | 7 | 1204 | 4678 |
Roccastrada | GR | 15 | 9199 | 13877 |
Radicondoli | SI | 15 | 914 | 14791 |
Castelnuovo di Val di Cecina | PI | 18 | 2231 | 17022 |
Sovicille | SI | 19 | 10116 | 27138 |
Massa Marittima | GR | 20 | 8375 | 35513 |
Monterotondo Marittimo | GR | 20 | 1371 | 36884 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.8 | 2020-05-20 04:35:03 |
43.1347 | 11.1008 | 9 | 2020-11-19 12:37:00 |
Bollettino Sismico Italiano INGV | 82776061 |
Reviewed Rev100 |
ML 1.8 | 2020-05-20 04:35:03 |
43.1363 | 11.1053 | 8 | 2020-05-20 04:47:35 |
Sala Sismica INGV-Roma | 79353571 |
Field | Value |
---|---|
Time (UTC) | 2020-05-20 04:35:03 ± 0.18 |
Latitude | 43.1347 ± 0.0135 |
Longitude | 11.1008 ± 0.0136 |
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 | 82776061 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1493 |
Semi-minor axis of confidence ellipse (meter) | 990 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 335 |
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) | 126 |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.47 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.75813 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.3 |
Num. used stations | 23 |
Type of magnitude | ML |
Reference to an origin | 82776061 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-09-09 23:27:35 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.3 |
Num. used stations | 23 |
Type of magnitude | ML |
Reference to an origin | 79353571 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-05-20 04:47:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.USI.HHZ. | 2020-05-20T04:36:14.89 | 3.0 | undecidable | manual | Pn | 0.03 | 0 | |||
IV.GIUL.HHZ. | 2020-05-20T04:36:12.73 | 3.0 | undecidable | manual | Sn | 2.48 | 0 | |||
IV.MELA.HHZ. | 2020-05-20T04:36:08.23 | 3.0 | undecidable | manual | Pg | 12.43 | 0 | |||
IV.CIMA.HNZ. | 2020-05-20T04:36:00.98 | 3.0 | undecidable | manual | Sn | -0.39 | 0 | |||
IV.MURB.HHZ. | 2020-05-20T04:35:42.87 | 3.0 | undecidable | manual | S | 1.95 | 0 | |||
IV.ARVD.HHZ. | 2020-05-20T04:35:29.99 | 3.0 | negative | manual | P | 0.58 | 0 | |||
IV.CELB.HHZ. | 2020-05-20T04:35:29.04 | 0.6 | undecidable | manual | S | 240 | 84.1491 | 50 | -0.36 | 41 |
TV.SF04.EHZ. | 2020-05-20T04:35:21.18 | 0.6 | undecidable | manual | S | 126 | 56.1993 | 50 | -0.77 | 38 |
TV.SF01.EHZ. | 2020-05-20T04:35:20.14 | 0.3 | undecidable | manual | S | 133 | 51.9036 | 50 | -0.64 | 60 |
IV.CELB.HHZ. | 2020-05-20T04:35:19.59 | 0.3 | undecidable | manual | P | 240 | 84.1491 | 50 | 0.95 | 50 |
IV.MAON.HHZ. | 2020-05-20T04:35:18.66 | 0.1 | undecidable | manual | P | 178 | 78.366 | 50 | 0.9 | 68 |
IV.ARCI.HHZ. | 2020-05-20T04:35:17.99 | 0.3 | undecidable | manual | S | 136 | 43.7229 | 50 | -0.61 | 62 |
IV.CASP.HHE. | 2020-05-20T04:35:17.59 | 0.3 | undecidable | manual | S | 207 | 42.7239 | 50 | -0.74 | 59 |
TV.SF01.EHZ. | 2020-05-20T04:35:14.03 | 0.1 | undecidable | manual | P | 133 | 51.9036 | 50 | 0.36 | 88 |
TV.SF04.EHZ. | 2020-05-20T04:35:14.82 | 0.3 | undecidable | manual | P | 126 | 56.1993 | 50 | 0.48 | 63 |
IV.CASP.HHE. | 2020-05-20T04:35:12.32 | 0.1 | undecidable | manual | P | 207 | 42.7239 | 50 | 0.07 | 95 |
IV.ARCI.HHZ. | 2020-05-20T04:35:12.69 | 0.1 | undecidable | manual | P | 136 | 43.7229 | 50 | 0.29 | 90 |
IV.RIBO.EHZ.01 | 2020-05-20T04:35:11.81 | 0.6 | undecidable | manual | S | 192 | 21.0678 | 112 | -0.03 | 49 |
IV.TRIF.CHZ. | 2020-05-20T04:35:09.49 | 0.6 | undecidable | manual | S | 262 | 16.1727 | 118 | -0.82 | 40 |
IV.RIBO.EHZ.01 | 2020-05-20T04:35:08.80 | 0.1 | positive | manual | P | 192 | 21.0678 | 112 | 0.3 | 94 |
IV.TRIF.CHZ. | 2020-05-20T04:35:07.48 | 0.1 | negative | manual | P | 262 | 16.1727 | 118 | -0.14 | 98 |
IV.FROS.CHZ. | 2020-05-20T04:35:07.98 | 0.3 | undecidable | manual | S | 28 | 9.4794 | 132 | -0.41 | 70 |
IV.FROS.CHZ. | 2020-05-20T04:35:06.59 | 0.1 | positive | manual | P | 28 | 9.4794 | 132 | 0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHN. | ML:2.2 | 0.0023408300000000003 | 0.1184 | AML | other | m | 2020-05-20T04:35:08.31 |
IV.FROS.CHE. | ML:2.4 | 0.003359768 | 0.112 | AML | other | m | 2020-05-20T04:35:08.43 |
IV.TRIF.CHN. | ML:2.3 | 0.0019774645 | 0.1024 | AML | other | m | 2020-05-20T04:35:09.63 |
IV.TRIF.CHE. | ML:2.3 | 0.001710529 | 0.112 | AML | other | m | 2020-05-20T04:35:09.74 |
IV.RIBO.EHE.01 | ML:1.6 | 0.0002986457 | 0.16 | AML | other | m | 2020-05-20T04:35:12.14 |
IV.ARCI.HHN. | ML:1.4 | 0.000083267745 | 0.2592 | AML | other | m | 2020-05-20T04:35:18.18 |
IV.FIR.HHE. | ML:2.3 | 0.0002991028 | 0.0992 | AML | other | m | 2020-05-20T04:35:18.93 |
IV.FIR.HNE. | ML:2.2 | 0.0002690055 | 0.0896 | AML | other | m | 2020-05-20T04:35:18.93 |
IV.ARCI.HHE. | ML:1.5 | 0.00010687886499999999 | 0.16 | AML | other | m | 2020-05-20T04:35:19.07 |
IV.FIR.HNN. | ML:2.3 | 0.00029326595 | 0.0896 | AML | other | m | 2020-05-20T04:35:19.36 |
IV.FIR.HHN. | ML:2.3 | 0.00031477259999999993 | 0.1024 | AML | other | m | 2020-05-20T04:35:19.36 |
IV.MAON.HNN. | ML:1.9 | 0.00011676795000000001 | 1.5712 | AML | other | m | 2020-05-20T04:35:20.02 |
TV.SF01.EHN. | ML:1.4 | 0.00007081208 | 1.6416 | AML | other | m | 2020-05-20T04:35:21.00 |
TV.SF01.EHE. | ML:1.4 | 0.000071091335 | 0.3392 | AML | other | m | 2020-05-20T04:35:21.82 |
TV.SF04.EHE. | ML:1.6 | 0.000088861785 | 0.24 | AML | other | m | 2020-05-20T04:35:23.42 |
TV.SF04.EHN. | ML:1.7 | 0.000114319205 | 0.2208 | AML | other | m | 2020-05-20T04:35:24.11 |
IV.ARCI.HNN. | ML:1.8 | 0.00017386055 | 0.9216 | AML | other | m | 2020-05-20T04:35:24.98 |
IV.MAON.HNE. | ML:2.0 | 0.00012928720499999998 | 0.8704 | AML | other | m | 2020-05-20T04:35:25.95 |
IV.ARCI.HNE. | ML:1.6 | 0.0001420309 | 1.1104 | AML | other | m | 2020-05-20T04:35:27.59 |
IV.CELB.HHN. | ML:1.6 | 0.000048920480000000006 | 0.0768 | AML | other | m | 2020-05-20T04:35:31.54 |
IV.CELB.HHE. | ML:1.9 | 0.00010409649 | 0.0608 | AML | other | m | 2020-05-20T04:35:31.63 |
IV.MAON.HHE. | ML:1.6 | 0.00005304425 | 0.88 | AML | other | m | 2020-05-20T04:35:35.47 |
IV.MAON.HHN. | ML:1.5 | 0.00004393529 | 0.9024 | AML | other | m | 2020-05-20T04:35:49.89 |