A magnitude ML 1.5 earthquake occured in region: 1 km NW Montieri (GR), on
and geographic coordinates (lat, lon) 43.1410, 11.0110 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 |
---|---|---|---|---|
Montieri | GR | 1 | 1204 | 1204 |
Chiusdino | SI | 7 | 1903 | 3107 |
Castelnuovo di Val di Cecina | PI | 11 | 2231 | 5338 |
Monterotondo Marittimo | GR | 13 | 1371 | 6709 |
Radicondoli | SI | 14 | 914 | 7623 |
Monticiano | SI | 14 | 1571 | 9194 |
Massa Marittima | GR | 14 | 8375 | 17569 |
Roccastrada | GR | 19 | 9199 | 26768 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.5 | 2021-05-09 03:07:38 |
43.1407 | 11.0112 | 9 | 2021-12-29 11:12:05 |
Bollettino Sismico Italiano INGV | 91307481 |
Reviewed Rev100 |
ML 1.5 | 2021-05-09 03:07:38 |
43.141 | 11.0162 | 9 | 2021-05-09 03:12:54 |
Sala Sismica INGV-Roma | 89931231 |
Field | Value |
---|---|
Time (UTC) | 2021-05-09 03:07:38 ± 0.15 |
Latitude | 43.1407 ± 0.0099 |
Longitude | 11.0112 ± 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 | 91307481 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1310 |
Semi-minor axis of confidence ellipse (meter) | 446 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 129 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1310.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 94 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.08364 |
Epicentral distance of station farthest from the epicenter (degree) | 0.70597 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 91307481 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-15 04:22:02 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 89931231 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-09 03:12:54 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CELB.HHZ. | 2021-05-09T03:08:02.64 | 0.6 | undecidable | manual | S | 236 | 78.366 | 50 | 0.25 | 43 |
IV.CELB.HHZ. | 2021-05-09T03:07:53.16 | 0.1 | undecidable | manual | P | 236 | 78.366 | 50 | 0.83 | 71 |
IV.CSNT.HHZ. | 2021-05-09T03:07:52.50 | 0.6 | undecidable | manual | S | 31 | 43.2234 | 50 | -0.51 | 43 |
IV.CASP.HHE. | 2021-05-09T03:07:51.35 | 0.3 | undecidable | manual | S | 197 | 40.5261 | 50 | -0.96 | 54 |
IV.ARCI.HHZ. | 2021-05-09T03:07:48.44 | 0.6 | undecidable | manual | P | 130 | 49.4172 | 50 | 0.57 | 42 |
IV.RIBO.EHZ.01 | 2021-05-09T03:07:46.30 | 0.6 | undecidable | manual | S | 172 | 21.4674 | 113 | -0.37 | 46 |
IV.CASP.HHE. | 2021-05-09T03:07:46.71 | 0.1 | negative | manual | P | 197 | 40.5261 | 50 | 0.2 | 93 |
IV.CSNT.HHZ. | 2021-05-09T03:07:46.99 | 0.6 | undecidable | manual | P | 31 | 43.2234 | 50 | 0.08 | 47 |
IV.MAGO.CHE. | 2021-05-09T03:07:44.73 | 0.3 | undecidable | manual | P | 297 | 32.1456 | 50 | -0.47 | 67 |
IV.FROS.CHZ. | 2021-05-09T03:07:44.20 | 0.6 | undecidable | manual | S | 57 | 13.9749 | 123 | -0.18 | 49 |
IV.RIBO.EHZ.01 | 2021-05-09T03:07:43.33 | 0.3 | undecidable | manual | P | 172 | 21.4674 | 113 | 0.08 | 74 |
IV.FROS.CHZ. | 2021-05-09T03:07:42.10 | 0.1 | negative | manual | P | 57 | 13.9749 | 123 | 0.17 | 98 |
IV.TRIF.CHZ. | 2021-05-09T03:07:42.70 | 0.6 | undecidable | manual | S | 252 | 9.2796 | 135 | -0.38 | 47 |
IV.TRIF.CHZ. | 2021-05-09T03:07:41.28 | 0.1 | negative | manual | P | 252 | 9.2796 | 135 | 0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:1.7 | 0.0007204999999999999 | 0.1 | AML | other | m | 2021-05-09T03:07:42.77 |
IV.TRIF.CHE. | ML:1.7 | 0.0006955 | 0.14 | AML | other | m | 2021-05-09T03:07:43.53 |
IV.FROS.CHN. | ML:1.5 | 0.0003165 | 0.4 | AML | other | m | 2021-05-09T03:07:44.41 |
IV.FROS.CHE. | ML:1.2 | 0.0001575 | 0.2 | AML | other | m | 2021-05-09T03:07:44.84 |