A magnitude ML 0.6 earthquake occured in region: Costa Ligure Occidentale (Imperia), on
and geographic coordinates (lat, lon) 43.9690, 7.5620 at 8 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 |
---|---|---|---|---|
Pigna | IM | 9 | 859 | 859 |
Rocchetta Nervina | IM | 9 | 298 | 1157 |
Castel Vittorio | IM | 10 | 287 | 1444 |
Olivetta San Michele | IM | 10 | 211 | 1655 |
Airole | IM | 11 | 407 | 2062 |
Isolabona | IM | 12 | 679 | 2741 |
Apricale | IM | 13 | 629 | 3370 |
Dolceacqua | IM | 14 | 2074 | 5444 |
Perinaldo | IM | 15 | 870 | 6314 |
Bajardo | IM | 15 | 312 | 6626 |
Triora | IM | 16 | 355 | 6981 |
Molini di Triora | IM | 17 | 617 | 7598 |
Soldano | IM | 17 | 977 | 8575 |
Camporosso | IM | 18 | 5632 | 14207 |
San Biagio della Cima | IM | 18 | 1329 | 15536 |
Seborga | IM | 19 | 315 | 15851 |
Vallebona | IM | 19 | 1310 | 17161 |
Ceriana | IM | 20 | 1250 | 18411 |
Briga Alta | CN | 20 | 39 | 18450 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.6 | 2021-07-22 01:00:05 |
43.9687 | 7.5617 | 9 | 2021-07-22 01:17:49 |
Sala Sismica INGV-Roma | 93042451 |
Field | Value |
---|---|
Time (UTC) | 2021-07-22 01:00:05 ± 0.13 |
Latitude | 43.9687 ± 0.0063 |
Longitude | 7.5617 ± 0.0087 |
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 | 93042451 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 763 |
Semi-minor axis of confidence ellipse (meter) | 593 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 222 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 760.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 148 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 16 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.01889 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39031 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.6 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 93042451 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-22 01:17:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.RORO.HHZ. | 2021-07-22T01:00:19.60 | 0.6 | undecidable | manual | S | 68 | 43.3233 | 50 | -0.73 | 38 |
GU.GBOS.HHZ. | 2021-07-22T01:00:18.44 | 0.6 | undecidable | manual | S | 36 | 37.5291 | 50 | -0.34 | 44 |
GU.STV.HHZ. | 2021-07-22T01:00:17.92 | 0.6 | undecidable | manual | S | 329 | 35.9418 | 50 | -0.44 | 43 |
GU.ENR.HHZ. | 2021-07-22T01:00:16.81 | 0.6 | undecidable | manual | S | 339 | 31.1466 | 105 | -0.12 | 47 |
GU.IMI.HHZ. | 2021-07-22T01:00:15.54 | 0.6 | undecidable | manual | S | 104 | 27.2505 | 107 | -0.11 | 47 |
GU.RORO.HHZ. | 2021-07-22T01:00:14.44 | 0.6 | undecidable | manual | P | 68 | 43.3233 | 50 | 0.28 | 44 |
GU.BURY.HHZ. | 2021-07-22T01:00:13.24 | 0.6 | undecidable | manual | S | 181 | 20.6682 | 112 | -0.25 | 46 |
GU.MGRO.HHZ. | 2021-07-22T01:00:13.78 | 0.6 | undecidable | manual | S | 67 | 21.3675 | 112 | 0.07 | 48 |
GU.STV.HHZ. | 2021-07-22T01:00:13.51 | 1.0 | undecidable | manual | P | 329 | 35.9418 | 50 | 0.48 | 21 |
GU.GBOS.HHZ. | 2021-07-22T01:00:13.66 | 0.1 | undecidable | manual | P | 36 | 37.5291 | 50 | 0.39 | 87 |
GU.ENR.HHZ. | 2021-07-22T01:00:12.71 | 0.6 | positive | manual | P | 339 | 31.1466 | 105 | 0.51 | 43 |
GU.IMI.HHZ. | 2021-07-22T01:00:11.59 | 0.3 | negative | manual | P | 104 | 27.2505 | 107 | 0.13 | 70 |
GU.BURY.HHZ. | 2021-07-22T01:00:10.35 | 0.6 | undecidable | manual | P | 181 | 20.6682 | 112 | 0.14 | 47 |
GU.MGRO.HHZ. | 2021-07-22T01:00:10.82 | 1.0 | undecidable | manual | P | 67 | 21.3675 | 112 | 0.48 | 22 |
FR.SAOF.HHZ. | 2021-07-22T01:00:08.33 | 0.6 | undecidable | manual | S | 341 | 2.0979 | 166 | -0.45 | 46 |
FR.SAOF.HHZ. | 2021-07-22T01:00:07.46 | 0.1 | undecidable | manual | P | 341 | 2.0979 | 166 | -0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.BURY.HHE. | ML:1.0 | 0.0000799 | 0.2 | AML | other | m | 2021-07-22T01:00:13.82 |
GU.MGRO.HHE. | ML:0.3 | 0.0000138 | 1.32 | AML | other | m | 2021-07-22T01:00:13.96 |
GU.BURY.HHN. | ML:0.8 | 0.00004405000000000001 | 0.74 | AML | other | m | 2021-07-22T01:00:13.97 |
GU.MGRO.HHN. | ML:0.5 | 0.0000226 | 1.22 | AML | other | m | 2021-07-22T01:00:14.68 |
GU.IMI.HHN. | ML:0.7 | 0.00002985 | 1.16 | AML | other | m | 2021-07-22T01:00:15.73 |
GU.IMI.HHE. | ML:0.6 | 0.00002135 | 0.26 | AML | other | m | 2021-07-22T01:00:16.45 |
GU.ENR.HHN. | ML:0.5 | 0.000017 | 1.16 | AML | other | m | 2021-07-22T01:00:17.60 |
GU.ENR.HHE. | ML:0.5 | 0.0000147 | 0.42 | AML | other | m | 2021-07-22T01:00:18.28 |
GU.STV.HHE. | ML:0.6 | 0.000013500000000000001 | 0.68 | AML | other | m | 2021-07-22T01:00:18.36 |
GU.STV.HHN. | ML:0.4 | 0.00001086 | 0.44 | AML | other | m | 2021-07-22T01:00:18.22 |