A magnitude ML 1.1 (quarry blast) earthquake occured in region: 3 km W Roccastrada (GR), on
and geographic coordinates (lat, lon) 43.0090, 11.1320 at 10 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
Event type: quarry blast.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 |
---|---|---|---|---|
Roccastrada | GR | 3 | 9199 | 9199 |
Civitella Paganico | GR | 12 | 3154 | 12353 |
Monticiano | SI | 15 | 1571 | 13924 |
Montieri | GR | 17 | 1204 | 15128 |
Chiusdino | SI | 17 | 1903 | 17031 |
Campagnatico | GR | 18 | 2412 | 19443 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2023-05-18 09:39:21 |
43.0093 | 11.1325 | 10 | 2023-05-18 10:03:52 |
Sala Sismica INGV-Roma | 117446121 |
Field | Value |
---|---|
Time (UTC) | 2023-05-18 09:39:21 ± 0.22 |
Latitude | 43.0093 ± 0.0162 |
Longitude | 11.1325 ± 0.0160 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | quarry blast |
Origin ID | 117446121 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1850 |
Semi-minor axis of confidence ellipse (meter) | 1250 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 355 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1850.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 117 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.36 |
Epicentral distance of station closest to the epicenter (degree) | 0.08723 |
Epicentral distance of station farthest from the epicenter (degree) | 0.72485 |
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 | 1.1 |
Uncertainty | 0.6 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 117446121 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-05-18 10:03:52 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CELB.HHZ. | 2023-05-18T09:39:35.77 | 0.1 | undecidable | manual | P | 249 | 80.4639 | 50 | 0.34 | 87 |
IV.ARCI.HHZ. | 2023-05-18T09:39:32.88 | 0.6 | undecidable | manual | S | 122 | 32.8449 | 50 | -0.08 | 50 |
IV.ARCI.HHZ. | 2023-05-18T09:39:28.17 | 0.1 | undecidable | manual | P | 122 | 32.8449 | 50 | 0.07 | 100 |
IV.FROS.CHZ. | 2023-05-18T09:39:26.07 | 0.6 | undecidable | manual | P | 5 | 22.2555 | 114 | -0.31 | 48 |
IV.RIBO.EHZ. | 2023-05-18T09:39:25.77 | 0.3 | undecidable | manual | S | 226 | 9.6792 | 136 | -0.54 | 70 |
IV.RIBO.EHZ. | 2023-05-18T09:39:24.55 | 0.3 | negative | manual | P | 226 | 9.6792 | 136 | 0.28 | 75 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CELB.HHE. | ML:2.1 | 0.000167 | 0.26 | AML | other | m | 2023-05-18T09:39:37.05 |
IV.CELB.HHN. | ML:2.4 | 0.0003145 | 0.08 | AML | other | m | 2023-05-18T09:39:37.22 |
IV.RIBO.EHE.01 | ML:1.0 | 0.00012200089999999999 | 0.224 | AML | other | m | 2023-05-18T09:39:27.88 |
IV.ARCI.HHE. | ML:0.5 | 0.000017476035000000003 | 1.7408 | AML | other | m | 2023-05-18T09:39:33.09 |
IV.ARCI.HHN. | ML:0.9 | 0.00003351256 | 1.696 | AML | other | m | 2023-05-18T09:39:34.34 |