A magnitude ML 0.3 earthquake occured in region: Costa Ligure Occidentale (Imperia), on
and geographic coordinates (lat, lon) 43.7750, 7.6790 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 |
---|---|---|---|---|
Bordighera | IM | 1 | 10469 | 10469 |
Vallecrosia | IM | 4 | 6956 | 17425 |
Ospedaletti | IM | 4 | 3367 | 20792 |
Vallebona | IM | 5 | 1310 | 22102 |
San Biagio della Cima | IM | 6 | 1329 | 23431 |
Ventimiglia | IM | 6 | 24310 | 47741 |
Seborga | IM | 6 | 315 | 48056 |
Camporosso | IM | 6 | 5632 | 53688 |
Soldano | IM | 6 | 977 | 54665 |
Dolceacqua | IM | 9 | 2074 | 56739 |
Sanremo | IM | 10 | 54807 | 111546 |
Perinaldo | IM | 10 | 870 | 112416 |
Apricale | IM | 12 | 629 | 113045 |
Isolabona | IM | 12 | 679 | 113724 |
Ceriana | IM | 14 | 1250 | 114974 |
Rocchetta Nervina | IM | 14 | 298 | 115272 |
Bajardo | IM | 15 | 312 | 115584 |
Airole | IM | 15 | 407 | 115991 |
Taggia | IM | 16 | 14116 | 130107 |
Castel Vittorio | IM | 17 | 287 | 130394 |
Olivetta San Michele | IM | 18 | 211 | 130605 |
Riva Ligure | IM | 18 | 2910 | 133515 |
Pigna | IM | 18 | 859 | 134374 |
Castellaro | IM | 18 | 1256 | 135630 |
Santo Stefano al Mare | IM | 19 | 2197 | 137827 |
Pompeiana | IM | 19 | 823 | 138650 |
Terzorio | IM | 20 | 216 | 138866 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.3 | 2021-11-21 18:21:38 |
43.7747 | 7.6788 | 9 | 2021-11-21 18:26:28 |
Sala Sismica INGV-Roma | 97664051 |
Field | Value |
---|---|
Time (UTC) | 2021-11-21 18:21:38 ± 0.22 |
Latitude | 43.7747 ± 0.0081 |
Longitude | 7.6788 ± 0.0112 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 97664051 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1151 |
Semi-minor axis of confidence ellipse (meter) | 603 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 135 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1150.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 256 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
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) | 0.08813 |
Epicentral distance of station farthest from the epicenter (degree) | 0.53420 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.3 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 97664051 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-11-21 18:26:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.STV.HHZ. | 2021-11-21T18:21:57.47 | 0.3 | undecidable | manual | S | 332 | 59.2962 | 50 | 0.3 | 71 |
GU.ENR.HHZ. | 2021-11-21T18:21:55.56 | 0.6 | undecidable | manual | S | 338 | 54.6009 | 50 | -0.34 | 47 |
GU.MGRO.HHZ. | 2021-11-21T18:21:49.95 | 0.6 | undecidable | manual | S | 19 | 31.4463 | 50 | 0.21 | 51 |
GU.STV.HHZ. | 2021-11-21T18:21:49.23 | 0.6 | positive | manual | P | 332 | 59.2962 | 50 | -0.04 | 49 |
GU.ENR.HHZ. | 2021-11-21T18:21:48.53 | 0.1 | undecidable | manual | P | 338 | 54.6009 | 50 | -0.01 | 100 |
FR.SAOF.HHZ.00 | 2021-11-21T18:21:47.82 | 0.6 | undecidable | manual | S | 337 | 25.5522 | 110 | -0.07 | 53 |
GU.MGRO.HHZ. | 2021-11-21T18:21:45.14 | 0.6 | positive | manual | P | 19 | 31.4463 | 50 | 0.16 | 52 |
FR.SAOF.HHZ.00 | 2021-11-21T18:21:43.77 | 0.3 | undecidable | manual | P | 337 | 25.5522 | 110 | -0.14 | 78 |
GU.BURY.HHZ. | 2021-11-21T18:21:43.30 | 0.6 | undecidable | manual | S | 275 | 9.7791 | 133 | 0.15 | 53 |
GU.BURY.HHZ. | 2021-11-21T18:21:41.12 | 0.3 | positive | manual | P | 275 | 9.7791 | 133 | -0.06 | 81 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BURY.HHE. | ML:0.3 | 0.0000231034 | 0.0768 | AML | other | m | 2021-11-21T18:21:43.94 |
GU.BURY.HHN. | ML:0.8 | 0.00007419127500000001 | 0.128 | AML | other | m | 2021-11-21T18:21:43.35 |
GU.MGRO.HHE. | ML:0.3 | 0.000011317695999999999 | 0.1536 | AML | other | m | 2021-11-21T18:21:50.00 |
GU.MGRO.HHN. | ML:0.0 | 0.0000068250981 | 0.0896 | AML | other | m | 2021-11-21T18:21:50.41 |