A magnitude ML 0.9 earthquake occured in region: 2 km E Montieri (GR), on
and geographic coordinates (lat, lon) 43.1280, 11.0350 at 9 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 | 2 | 1204 | 1204 |
Chiusdino | SI | 5 | 1903 | 3107 |
Monticiano | SI | 12 | 1571 | 4678 |
Castelnuovo di Val di Cecina | PI | 14 | 2231 | 6909 |
Massa Marittima | GR | 15 | 8375 | 15284 |
Monterotondo Marittimo | GR | 15 | 1371 | 16655 |
Radicondoli | SI | 15 | 914 | 17569 |
Roccastrada | GR | 17 | 9199 | 26768 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-04-30 07:03:14 |
43.1278 | 11.0353 | 9 | 2023-04-30 07:21:19 |
Sala Sismica INGV-Roma | 116893521 |
Field | Value |
---|---|
Time (UTC) | 2023-04-30 07:03:14 ± 0.25 |
Latitude | 43.1278 ± 0.0126 |
Longitude | 11.0353 ± 0.0173 |
Depth (km) | 9 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 116893521 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1474 |
Semi-minor axis of confidence ellipse (meter) | 1065 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 323 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1470.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 145 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.45 |
Epicentral distance of station closest to the epicenter (degree) | 0.09803 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35883 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 116893521 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-30 07:21:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CASP.HHZ. | 2023-04-30T07:03:27.91 | 0.3 | undecidable | manual | S | 200 | 39.8268 | 50 | -0.68 | 62 |
IV.CASP.HHZ. | 2023-04-30T07:03:23.20 | 0.1 | undecidable | manual | P | 200 | 39.8268 | 50 | 0.38 | 91 |
IV.RIBO.EHZ.01 | 2023-04-30T07:03:22.20 | 0.3 | undecidable | manual | S | 177 | 19.869 | 113 | -0.23 | 73 |
IV.FROS.CHZ. | 2023-04-30T07:03:20.03 | 0.3 | undecidable | manual | S | 47 | 13.3755 | 123 | -0.4 | 71 |
IV.RIBO.EHZ.01 | 2023-04-30T07:03:19.67 | 0.1 | undecidable | manual | P | 177 | 19.869 | 113 | 0.41 | 93 |
IV.TRIF.CHZ. | 2023-04-30T07:03:19.47 | 0.3 | undecidable | manual | S | 262 | 10.878 | 128 | -0.25 | 74 |
IV.FROS.CHZ. | 2023-04-30T07:03:18.25 | 0.1 | negative | manual | P | 47 | 13.3755 | 123 | 0.14 | 100 |
IV.TRIF.CHZ. | 2023-04-30T07:03:17.94 | 0.3 | positive | manual | P | 262 | 10.878 | 128 | 0.24 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.TRIF.CHN. | ML:1.1 | 0.0001705 | 0.08 | AML | other | m | 2023-04-30T07:03:19.61 |
IV.TRIF.CHE. | ML:1.0 | 0.00013636393 | 0.0704 | AML | other | m | 2023-04-30T07:03:19.91 |
IV.FROS.CHE. | ML:0.8 | 0.0000751 | 0.64 | AML | other | m | 2023-04-30T07:03:20.44 |
IV.FROS.CHN. | ML:1.0 | 0.0001028971 | 0.1824 | AML | other | m | 2023-04-30T07:03:20.35 |
IV.CASP.HHN. | ML:0.8 | 0.000024709185000000003 | 0.08 | AML | other | m | 2023-04-30T07:03:28.31 |
IV.CASP.HHE. | ML:0.8 | 0.0000194 | 0.6 | AML | other | m | 2023-04-30T07:03:28.51 |
IV.RIBO.EHE.01 | ML:0.8 | 0.00004687864 | 0.1984 | AML | other | m | 2023-04-30T07:03:22.96 |
IV.RIBO.EHN.01 | ML:0.9 | 0.000059058295 | 0.1216 | AML | other | m | 2023-04-30T07:03:22.85 |