A magnitude ML 0.4 earthquake occured in region: Costa Ligure Occidentale (Imperia), on
and geographic coordinates (lat, lon) 43.9580, 7.5700 at 4 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 |
---|---|---|---|---|
Rocchetta Nervina | IM | 8 | 298 | 298 |
Pigna | IM | 8 | 859 | 1157 |
Castel Vittorio | IM | 9 | 287 | 1444 |
Airole | IM | 10 | 407 | 1851 |
Olivetta San Michele | IM | 10 | 211 | 2062 |
Isolabona | IM | 10 | 679 | 2741 |
Apricale | IM | 11 | 629 | 3370 |
Dolceacqua | IM | 13 | 2074 | 5444 |
Perinaldo | IM | 13 | 870 | 6314 |
Bajardo | IM | 13 | 312 | 6626 |
Triora | IM | 16 | 355 | 6981 |
Soldano | IM | 16 | 977 | 7958 |
Camporosso | IM | 16 | 5632 | 13590 |
San Biagio della Cima | IM | 17 | 1329 | 14919 |
Molini di Triora | IM | 17 | 617 | 15536 |
Seborga | IM | 18 | 315 | 15851 |
Vallebona | IM | 18 | 1310 | 17161 |
Ceriana | IM | 18 | 1250 | 18411 |
Ventimiglia | IM | 19 | 24310 | 42721 |
Vallecrosia | IM | 19 | 6956 | 49677 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 1.6
ML 0.4 |
2021-07-24 03:12:45 |
43.9577 | 7.57 | 5 | 2021-12-29 11:12:51 |
Bollettino Sismico Italiano INGV | 97412961 |
Reviewed Rev100 |
ML 0.5 | 2021-07-24 03:12:44 |
43.9702 | 7.5643 | 9 | 2021-07-24 03:25:19 |
Sala Sismica INGV-Roma | 93133921 |
Field | Value |
---|---|
Time (UTC) | 2021-07-24 03:12:45 ± 0.07 |
Latitude | 43.9577 ± 0.0027 |
Longitude | 7.5700 ± 0.0037 |
Depth (km) | 5 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 97412961 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 317 |
Semi-minor axis of confidence ellipse (meter) | 109 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 50 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 320.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 146 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.66640 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.3 |
Num. used stations | 11 |
Type of magnitude | ML |
Reference to an origin | 97412961 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-17 10:15:21 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 93133921 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-24 03:25:19 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | Md |
Reference to an origin | 97412961 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-17 10:15:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.CIRO.HHZ. | 2021-07-24T03:13:29.66 | 3.0 | undecidable | manual | Sn | -0.22 | 0 | |||
GU.RORO.HHZ. | 2021-07-24T03:13:00.50 | 0.3 | undecidable | manual | S | 66 | 43.1235 | 96 | 0.15 | 70 |
IV.QLNO.HHZ. | 2021-07-24T03:12:59.04 | 0.1 | undecidable | manual | P | 56 | 73.9704 | 50 | 0.1 | 89 |
GU.GBOS.HHZ. | 2021-07-24T03:12:58.60 | 0.3 | undecidable | manual | S | 34 | 38.1285 | 97 | -0.01 | 73 |
GU.STV.HHZ. | 2021-07-24T03:12:58.40 | 0.3 | undecidable | manual | S | 329 | 37.3293 | 97 | 0.07 | 72 |
GU.ENR.HHE. | 2021-07-24T03:12:56.90 | 0.3 | undecidable | manual | S | 338 | 32.4453 | 98 | 0.24 | 70 |
GU.RORO.HHZ. | 2021-07-24T03:12:54.26 | 0.1 | undecidable | manual | P | 66 | 43.1235 | 96 | 0.28 | 91 |
GU.IMI.HHZ. | 2021-07-24T03:12:54.40 | 0.3 | undecidable | manual | S | 101 | 26.3514 | 100 | -0.16 | 72 |
GU.BURY.HHZ. | 2021-07-24T03:12:52.30 | 0.3 | undecidable | manual | S | 183 | 19.4694 | 103 | 0.09 | 74 |
GU.MGRO.HHZ. | 2021-07-24T03:12:52.70 | 0.3 | undecidable | manual | S | 64 | 21.1677 | 102 | -0.11 | 73 |
GU.GBOS.HHZ. | 2021-07-24T03:12:52.68 | 0.6 | undecidable | manual | P | 34 | 38.1285 | 97 | -0.3 | 46 |
GU.STV.HHZ. | 2021-07-24T03:12:52.46 | 0.3 | undecidable | manual | P | 329 | 37.3293 | 97 | -0.36 | 68 |
GU.ENR.HHE. | 2021-07-24T03:12:51.64 | 0.1 | undecidable | manual | P | 338 | 32.4453 | 98 | -0.21 | 94 |
GU.IMI.HHZ. | 2021-07-24T03:12:50.52 | 0.1 | undecidable | manual | P | 101 | 26.3514 | 100 | -0.12 | 97 |
GU.MGRO.HHZ. | 2021-07-24T03:12:49.66 | 0.1 | undecidable | manual | P | 64 | 21.1677 | 102 | 0.03 | 99 |
GU.BURY.HHZ. | 2021-07-24T03:12:49.29 | 0.1 | undecidable | manual | P | 183 | 19.4694 | 103 | 0 | 100 |
FR.SAOF.HHZ.00 | 2021-07-24T03:12:47.20 | 0.3 | undecidable | manual | S | 337 | 3.3966 | 143 | -0.05 | 76 |
FR.SAOF.HHZ.00 | 2021-07-24T03:12:46.58 | 0.1 | undecidable | manual | P | 337 | 3.3966 | 143 | 0.16 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BURY.HNE. | ML:0.6 | 0.000032064515 | 0.0704 | AML | other | m | 2021-07-24T03:12:52.59 |
GU.BURY.HHE. | ML:0.9 | 0.00006695 | 0.28 | AML | other | m | 2021-07-24T03:12:52.82 |
GU.BURY.HHN. | ML:0.6 | 0.000029521395 | 0.1296 | AML | other | m | 2021-07-24T03:12:53.20 |
GU.BURY.HNN. | ML:0.6 | 0.000034163299200000006 | 0.1104 | AML | other | m | 2021-07-24T03:12:53.54 |
GU.MGRO.HHE. | ML:0.1 | 0.000010048314000000002 | 0.2 | AML | other | m | 2021-07-24T03:12:53.85 |
GU.MGRO.HHN. | ML:0.1 | 0.000011402234499999998 | 1.8784 | AML | other | m | 2021-07-24T03:12:54.00 |
GU.IMI.HHN. | ML:0.6 | 0.0000229363105 | 0.2 | AML | other | m | 2021-07-24T03:12:55.66 |
GU.IMI.HHE. | ML:0.5 | 0.000018460074999999998 | 0.2 | AML | other | m | 2021-07-24T03:12:56.68 |
GU.GBOS.HHE. | ML:0.4 | 0.000008578751 | 0.1392 | AML | other | m | 2021-07-24T03:12:57.73 |
GU.GBOS.HHN. | ML:0.1 | 0.000004650912 | 0.1408 | AML | other | m | 2021-07-24T03:12:58.69 |
GU.RORO.HHN. | ML:0.2 | 0.000004199345 | 0.12 | AML | other | m | 2021-07-24T03:13:01.13 |