A magnitude ML 1.6 earthquake occured in region: 2 km NW Chiusdino (SI), on
and geographic coordinates (lat, lon) 43.1730, 11.0720 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 | 2 | 1903 | 1903 |
Montieri | GR | 7 | 1204 | 3107 |
Monticiano | SI | 10 | 1571 | 4678 |
Radicondoli | SI | 10 | 914 | 5592 |
Castelnuovo di Val di Cecina | PI | 14 | 2231 | 7823 |
Sovicille | SI | 18 | 10116 | 17939 |
Monterotondo Marittimo | GR | 18 | 1371 | 19310 |
Casole d'Elsa | SI | 19 | 3897 | 23207 |
Roccastrada | GR | 20 | 9199 | 32406 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2021-09-30 09:37:45 |
43.1733 | 11.0723 | 9 | 2022-03-30 13:04:11 |
Bollettino Sismico Italiano INGV | 96493931 |
Field | Value |
---|---|
Time (UTC) | 2021-09-30 09:37:45 ± 0.15 |
Latitude | 43.1733 ± 0.0117 |
Longitude | 11.0723 ± 0.0160 |
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 | 96493931 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1572 |
Semi-minor axis of confidence ellipse (meter) | 509 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 316 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1570.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 109 |
Number of associated phases, regardless of their use for origin computation | 25 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.43 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.66910 |
Number of stations at which the event was observed | 21 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 11 |
Type of magnitude | ML |
Reference to an origin | 96493931 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-03-07 16:42:16 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
SL.KOGS.BHZ. | 2021-09-30T09:39:11.92 | 3.0 | undecidable | manual | P | 10.57 | 0 | |||
IV.SELL.HHZ. | 2021-09-30T09:39:10.95 | 3.0 | positive | manual | P | -4.89 | 0 | |||
CR.STON.BHZ. | 2021-09-30T09:39:01.56 | 3.0 | undecidable | manual | P | 0.47 | 0 | |||
SL.LJU.BHZ. | 2021-09-30T09:38:58.52 | 3.0 | undecidable | manual | P | 12.98 | 0 | |||
OT.OT05.EHZ. | 2021-09-30T09:38:56.39 | 3.0 | negative | manual | P | 11.5 | 0 | |||
IV.POFI.HHZ. | 2021-09-30T09:38:55.01 | 3.0 | undecidable | manual | Sn | -5.43 | 0 | |||
IV.RCAV.EHZ. | 2021-09-30T09:38:49.01 | 3.0 | undecidable | manual | Sg | 1.24 | 0 | |||
OT.OT17.EHZ. | 2021-09-30T09:38:45.95 | 3.0 | positive | manual | P | 3.39 | 0 | |||
IV.VENT.EHZ. | 2021-09-30T09:38:43.77 | 3.0 | undecidable | manual | P | 8.84 | 0 | |||
IV.RDP.HHZ. | 2021-09-30T09:38:39.16 | 3.0 | undecidable | manual | Sn | -7.24 | 0 | |||
IV.ARRO.EHZ. | 2021-09-30T09:38:31.18 | 3.0 | undecidable | manual | S | -3.38 | 0 | |||
IV.CASP.HHZ. | 2021-09-30T09:37:59.44 | 0.3 | undecidable | manual | S | 202 | 45.621 | 50 | -0.85 | 56 |
IV.CRMI.HNN. | 2021-09-30T09:37:58.64 | 0.3 | undecidable | manual | P | 354 | 69.375 | 50 | 1.08 | 48 |
IV.CAFI.HNN. | 2021-09-30T09:37:58.63 | 0.3 | undecidable | manual | P | 76 | 74.2701 | 50 | 0.32 | 64 |
IV.CSNT.HHZ. | 2021-09-30T09:37:57.58 | 0.3 | undecidable | manual | S | 28 | 37.629 | 50 | -0.56 | 64 |
IV.MCIV.CHE. | 2021-09-30T09:37:57.46 | 0.3 | undecidable | manual | P | 132 | 65.7897 | 50 | 0.46 | 63 |
TV.SF11.HHZ. | 2021-09-30T09:37:56.37 | 0.6 | undecidable | manual | P | 124 | 59.6958 | 50 | 0.31 | 44 |
TV.SF04.EHZ. | 2021-09-30T09:37:56.17 | 0.6 | undecidable | manual | P | 128 | 60.6948 | 50 | -0.04 | 46 |
IV.CASP.HHZ. | 2021-09-30T09:37:54.27 | 0.3 | undecidable | manual | P | 202 | 45.621 | 50 | 0.37 | 66 |
IV.ARCI.HHZ. | 2021-09-30T09:37:54.16 | 0.3 | undecidable | manual | P | 137 | 48.4182 | 50 | -0.16 | 69 |
IV.CSNT.HHZ. | 2021-09-30T09:37:52.20 | 0.3 | undecidable | manual | P | 28 | 37.629 | 50 | -0.46 | 66 |
IV.TRIF.CHZ. | 2021-09-30T09:37:51.01 | 0.3 | undecidable | manual | S | 245 | 15.1737 | 120 | -0.28 | 71 |
IV.TRIF.CHZ. | 2021-09-30T09:37:48.96 | 0.1 | undecidable | manual | P | 245 | 15.1737 | 120 | 0.26 | 96 |
IV.FROS.CHZ. | 2021-09-30T09:37:48.94 | 0.3 | undecidable | manual | S | 59 | 7.881 | 139 | -0.37 | 71 |
IV.FROS.CHZ. | 2021-09-30T09:37:47.66 | 0.1 | undecidable | manual | P | 59 | 7.881 | 139 | 0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHN. | ML:1.4 | 0.00035677610000000003 | 0.8192 | AML | other | m | 2021-09-30T09:37:48.96 |
IV.FROS.CHE. | ML:1.6 | 0.0006675 | 1.36 | AML | other | m | 2021-09-30T09:37:48.30 |
IV.TRIF.CHN. | ML:1.9 | 0.0008072223 | 0.1664 | AML | other | m | 2021-09-30T09:37:51.10 |
IV.TRIF.CHE. | ML:2.0 | 0.001017 | 0.22 | AML | other | m | 2021-09-30T09:37:51.41 |
IV.RIBO.EHE.01 | ML:1.6 | 0.00027233279999999997 | 0.6976 | AML | other | m | 2021-09-30T09:37:53.66 |
IV.ARCI.HHE. | ML:1.1 | 0.000036500000000000006 | 0.92 | AML | other | m | 2021-09-30T09:37:57.66 |
IV.ARCI.HHN. | ML:1.1 | 0.000037199999999999996 | 1.38 | AML | other | m | 2021-09-30T09:37:57.05 |
IV.CASP.HHN. | ML:1.4 | 0.00006905 | 0.28 | AML | other | m | 2021-09-30T09:37:59.72 |
IV.CASP.HHE. | ML:1.4 | 0.00007925 | 0.36 | AML | other | m | 2021-09-30T09:37:59.58 |
IV.CELB.HHE. | ML:1.8 | 0.0000842 | 0.06 | AML | other | m | 2021-09-30T09:38:35.22 |
IV.CELB.HHN. | ML:1.9 | 0.0001094 | 0.08 | AML | other | m | 2021-09-30T09:38:36.43 |