A magnitude ML 1.8 earthquake occured in region: 6 km S Montieri (GR), on
and geographic coordinates (lat, lon) 43.0750, 11.0310 at 11 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 |
---|---|---|---|---|
Montieri | GR | 6 | 1204 | 1204 |
Chiusdino | SI | 10 | 1903 | 3107 |
Massa Marittima | GR | 12 | 8375 | 11482 |
Roccastrada | GR | 13 | 9199 | 20681 |
Monticiano | SI | 14 | 1571 | 22252 |
Monterotondo Marittimo | GR | 16 | 1371 | 23623 |
Castelnuovo di Val di Cecina | PI | 18 | 2231 | 25854 |
Gavorrano | GR | 19 | 8580 | 34434 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.8 | 2021-09-18 06:40:30 |
43.0748 | 11.0307 | 11 | 2022-03-30 13:04:07 |
Bollettino Sismico Italiano INGV | 95691521 |
Reviewed Rev100 |
ML 1.8 | 2021-09-18 06:40:30 |
43.0745 | 11.0228 | 10 | 2021-09-18 06:47:28 |
Sala Sismica INGV-Roma | 95575391 |
Field | Value |
---|---|
Time (UTC) | 2021-09-18 06:40:30 ± 0.13 |
Latitude | 43.0748 ± 0.0072 |
Longitude | 11.0307 ± 0.0111 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95691521 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 883 |
Semi-minor axis of confidence ellipse (meter) | 636 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 260 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 880.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 83 |
Number of associated phases, regardless of their use for origin computation | 33 |
Number of defining phases | 20 |
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) | 0.72126 |
Number of stations at which the event was observed | 24 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 95691521 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-09-21 09:00:37 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 95575391 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-18 06:47:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
MN.PDG.HHZ. | 2021-09-18T06:42:24.73 | 3.0 | undecidable | manual | Pg | 19.93 | 0 | |||
IV.PLAC.HHZ. | 2021-09-18T06:42:21.67 | 3.0 | undecidable | manual | Pg | 15.77 | 0 | |||
IV.OVO.HHZ. | 2021-09-18T06:42:04.55 | 3.0 | undecidable | manual | Sn | -5.06 | 0 | |||
IV.SPS2.HHZ. | 2021-09-18T06:42:04.15 | 3.0 | positive | manual | Pg | 7.5 | 0 | |||
MN.TRI.HHZ. | 2021-09-18T06:42:02.11 | 3.0 | undecidable | manual | Sn | -4.78 | 0 | |||
IV.CERA.HNZ. | 2021-09-18T06:41:58.44 | 3.0 | undecidable | manual | Sg | 6.07 | 0 | |||
IV.VOBA.EHZ. | 2021-09-18T06:41:50.51 | 3.0 | undecidable | manual | Sg | 1.05 | 0 | |||
GU.ROTM.HHZ. | 2021-09-18T06:41:49.49 | 3.0 | undecidable | manual | Sn | -0.35 | 0 | |||
IX.SRN3.HHZ.02 | 2021-09-18T06:41:47.29 | 3.0 | positive | manual | Pg | 8.57 | 0 | |||
IV.SGAL.EHZ. | 2021-09-18T06:41:17.56 | 3.0 | undecidable | manual | Pg | 2.38 | 0 | |||
IV.ZEN8.EHZ. | 2021-09-18T06:41:11.83 | 3.0 | positive | manual | Pn | -3.81 | 0 | |||
IV.CERT.HHZ. | 2021-09-18T06:41:06.64 | 3.0 | undecidable | manual | Pg | 0.5 | 0 | |||
IV.ZCCA.HHZ. | 2021-09-18T06:40:57.08 | 3.0 | undecidable | manual | P | -0.82 | 0 | |||
TV.SF04.EHZ. | 2021-09-18T06:40:47.61 | 0.3 | undecidable | manual | S | 117 | 57.5979 | 50 | -0.77 | 57 |
IV.OSSC.HHE. | 2021-09-18T06:40:46.94 | 0.1 | undecidable | manual | S | 19 | 52.7028 | 50 | -0.14 | 92 |
IV.CSNT.HHZ. | 2021-09-18T06:40:45.82 | 0.6 | undecidable | manual | S | 25 | 48.9177 | 50 | -0.24 | 45 |
IV.CRMI.HNN. | 2021-09-18T06:40:44.95 | 0.3 | undecidable | manual | P | 357 | 80.0643 | 50 | 0.69 | 56 |
IV.ARCI.HHZ. | 2021-09-18T06:40:44.14 | 0.1 | undecidable | manual | S | 124 | 43.7229 | 50 | -0.54 | 85 |
IV.CELB.HHN. | 2021-09-18T06:40:44.53 | 0.3 | undecidable | manual | P | 242 | 75.9684 | 50 | 0.91 | 51 |
TV.SF04.EHZ. | 2021-09-18T06:40:41.24 | 0.3 | undecidable | manual | P | 117 | 57.5979 | 50 | 0.45 | 64 |
IV.CASP.HHZ. | 2021-09-18T06:40:41.68 | 0.6 | undecidable | manual | S | 203 | 34.2435 | 50 | -0.47 | 44 |
IV.MAGO.CHE. | 2021-09-18T06:40:41.93 | 0.3 | undecidable | manual | S | 306 | 37.3293 | 50 | -1.04 | 52 |
IV.OSSC.HHE. | 2021-09-18T06:40:40.45 | 0.1 | undecidable | manual | P | 19 | 52.7028 | 50 | 0.41 | 86 |
IV.CSNT.HHZ. | 2021-09-18T06:40:40.06 | 0.3 | undecidable | manual | P | 25 | 48.9177 | 50 | 0.61 | 61 |
IV.ARCI.HHZ. | 2021-09-18T06:40:39.00 | 0.1 | undecidable | manual | P | 124 | 43.7229 | 50 | 0.34 | 89 |
IV.CASP.HHZ. | 2021-09-18T06:40:37.36 | 0.1 | undecidable | manual | P | 203 | 34.2435 | 50 | 0.17 | 94 |
IV.MAGO.CHE. | 2021-09-18T06:40:37.66 | 0.1 | undecidable | manual | P | 306 | 37.3293 | 50 | -0.01 | 97 |
IV.FROS.CHZ. | 2021-09-18T06:40:37.08 | 0.6 | undecidable | manual | S | 34 | 18.0708 | 120 | -0.61 | 43 |
IV.RIBO.EHZ.01 | 2021-09-18T06:40:36.29 | 0.6 | undecidable | manual | S | 175 | 13.9749 | 127 | -0.22 | 48 |
IV.TRIF.CHZ. | 2021-09-18T06:40:35.04 | 0.6 | undecidable | manual | S | 293 | 11.2776 | 133 | -0.75 | 41 |
IV.RIBO.EHZ.01 | 2021-09-18T06:40:34.15 | 0.1 | positive | manual | P | 175 | 13.9749 | 127 | 0.21 | 97 |
IV.FROS.CHZ. | 2021-09-18T06:40:34.71 | 0.1 | undecidable | manual | P | 34 | 18.0708 | 120 | 0.09 | 98 |
IV.TRIF.CHZ. | 2021-09-18T06:40:33.46 | 0.1 | undecidable | manual | P | 293 | 11.2776 | 133 | -0.06 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.FROS.CHE. | ML:2.0 | 0.000814 | 0.2 | AML | other | m | 2021-09-18T06:40:37.46 |
IV.FROS.CHN. | ML:2.1 | 0.000964 | 0.4 | AML | other | m | 2021-09-18T06:40:37.45 |
IV.CASP.HHE. | ML:1.9 | 0.0003285 | 0.3 | AML | other | m | 2021-09-18T06:40:41.97 |
IV.CASP.HNN. | ML:1.8 | 0.0002875 | 0.26 | AML | other | m | 2021-09-18T06:40:41.94 |
IV.CASP.HHN. | ML:1.8 | 0.00026700000000000004 | 0.28 | AML | other | m | 2021-09-18T06:40:41.95 |
IV.CASP.HNE. | ML:1.9 | 0.0003 | 1.38 | AML | other | m | 2021-09-18T06:40:42.98 |
IV.ARCI.HHN. | ML:1.8 | 0.000179 | 0.12 | AML | other | m | 2021-09-18T06:40:44.42 |
IV.ARCI.HHE. | ML:1.8 | 0.0001915 | 1.08 | AML | other | m | 2021-09-18T06:40:44.42 |
IV.CSNT.HHN. | ML:1.4 | 0.00007544999999999999 | 1.8 | AML | other | m | 2021-09-18T06:40:46.07 |
IV.CSNT.HHE. | ML:1.2 | 0.0000446 | 0.66 | AML | other | m | 2021-09-18T06:40:46.57 |