A magnitude ML 0.2 (quarry blast) earthquake occured in region: Confine Italia Francia (FRANCIA), on
and geographic coordinates (lat, lon) 44.0480, 7.6310 at 0 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
---|---|---|---|---|
Briga Alta | CN | 11 | 39 | 39 |
Triora | IM | 12 | 355 | 394 |
Pigna | IM | 13 | 859 | 1253 |
Molini di Triora | IM | 13 | 617 | 1870 |
Castel Vittorio | IM | 14 | 287 | 2157 |
Mendatica | IM | 14 | 185 | 2342 |
Montegrosso Pian Latte | IM | 15 | 118 | 2460 |
Cosio d'Arroscia | IM | 16 | 221 | 2681 |
Bajardo | IM | 17 | 312 | 2993 |
Rocchetta Nervina | IM | 18 | 298 | 3291 |
Limone Piemonte | CN | 18 | 1485 | 4776 |
Isolabona | IM | 19 | 679 | 5455 |
Apricale | IM | 19 | 629 | 6084 |
Pornassio | IM | 20 | 685 | 6769 |
Rezzo | IM | 20 | 366 | 7135 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.2 | 2023-02-23 13:46:41 |
44.0477 | 7.6307 | 1 | 2024-03-01 17:18:17 |
Bollettino Sismico Italiano INGV | 123088861 |
Reviewed Rev100 |
ML 0.5 | 2023-02-23 13:46:40 |
44.0367 | 7.6155 | 9 | 2023-02-23 14:30:52 |
Sala Sismica INGV-Roma | 114735211 |
Field | Value |
---|---|
Time (UTC) | 2023-02-23 13:46:41 ± 0.17 |
Latitude | 44.0477 ± 0.0126 |
Longitude | 7.6307 ± 0.0125 |
Depth (km) | 1 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | quarry blast |
Origin ID | 123088861 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1360 |
Semi-minor axis of confidence ellipse (meter) | 960 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 359 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1360.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 130 |
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) | 0.31 |
Epicentral distance of station closest to the epicenter (degree) | 0.08274 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31926 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.2 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 123088861 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2023-11-13 17:18:20 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 114735211 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-02-23 14:30:52 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.RORO.HHZ. | 2023-02-23T13:46:47.85 | 0.3 | undecidable | manual | P | 78 | 35.4423 | 91 | -0.5 | 87 |
GU.GBOS.HHZ. | 2023-02-23T13:46:47.03 | 0.3 | undecidable | manual | P | 38 | 27.2505 | 91 | 0.34 | 92 |
GU.STV.HHZ. | 2023-02-23T13:46:47.62 | 0.3 | undecidable | manual | P | 312 | 32.6451 | 91 | -0.17 | 94 |
GU.ENR.HHZ. | 2023-02-23T13:46:46.53 | 0.3 | undecidable | manual | P | 320 | 26.3514 | 91 | 0.01 | 98 |
GU.MGRO.HHZ. | 2023-02-23T13:46:44.27 | 0.3 | undecidable | manual | P | 92 | 14.1747 | 92 | 0.19 | 97 |
FR.SAOF.HHZ.00 | 2023-02-23T13:46:43.17 | 0.3 | undecidable | manual | P | 222 | 9.1797 | 93 | 0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.MGRO.HHN. | ML:0.3 | 0.00002610972155 | 0.2816 | AML | other | m | 2023-02-23T13:46:47.31 |
GU.MGRO.HHE. | ML:0.4 | 0.000032323855 | 1.8016 | AML | other | m | 2023-02-23T13:46:48.94 |
GU.STV.HHE. | ML:0.0 | 0.000006824327 | 0.16 | AML | other | m | 2023-02-23T13:46:52.53 |
GU.STV.HHN. | ML:0.0 | 0.000007359836 | 0.32 | AML | other | m | 2023-02-23T13:46:52.74 |