A magnitude ML 1.1 earthquake occured in region: Costa Ligure Occidentale (Imperia), on
and geographic coordinates (lat, lon) 44.0340, 7.6270 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 |
---|---|---|---|---|
Briga Alta | CN | 11 | 39 | 39 |
Pigna | IM | 12 | 859 | 898 |
Triora | IM | 12 | 355 | 1253 |
Castel Vittorio | IM | 12 | 287 | 1540 |
Molini di Triora | IM | 13 | 617 | 2157 |
Mendatica | IM | 15 | 185 | 2342 |
Montegrosso Pian Latte | IM | 16 | 118 | 2460 |
Rocchetta Nervina | IM | 16 | 298 | 2758 |
Bajardo | IM | 16 | 312 | 3070 |
Cosio d'Arroscia | IM | 17 | 221 | 3291 |
Isolabona | IM | 17 | 679 | 3970 |
Apricale | IM | 17 | 629 | 4599 |
Airole | IM | 19 | 407 | 5006 |
Perinaldo | IM | 19 | 870 | 5876 |
Limone Piemonte | CN | 19 | 1485 | 7361 |
Olivetta San Michele | IM | 19 | 211 | 7572 |
Rezzo | IM | 20 | 366 | 7938 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.1 | 2021-05-15 10:55:29 |
44.0343 | 7.6272 | 4 | 2021-12-29 11:12:36 |
Bollettino Sismico Italiano INGV | 96436311 |
Reviewed Rev100 |
ML 1.2 | 2021-05-15 10:55:28 |
44.0182 | 7.6167 | 9 | 2021-05-15 11:01:44 |
Sala Sismica INGV-Roma | 90120481 |
Field | Value |
---|---|
Time (UTC) | 2021-05-15 10:55:29 ± 0.1 |
Latitude | 44.0343 ± 0.0054 |
Longitude | 7.6272 ± 0.0075 |
Depth (km) | 4 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 96436311 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 577 |
Semi-minor axis of confidence ellipse (meter) | 317 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 53 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 580.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 86 |
Number of associated phases, regardless of their use for origin computation | 19 |
Number of defining phases | 19 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.07195 |
Epicentral distance of station farthest from the epicenter (degree) | 0.84177 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96436311 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-10-11 14:16:41 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 90120481 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-15 11:01:44 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.BHB.HHZ. | 2021-05-15T10:55:57.16 | 0.6 | undecidable | manual | S | 342 | 93.4398 | 50 | -0.9 | 34 |
GU.BHB.HHZ. | 2021-05-15T10:55:45.48 | 0.3 | undecidable | manual | P | 342 | 93.4398 | 50 | -0.34 | 62 |
GU.RORO.HHE. | 2021-05-15T10:55:41.32 | 0.6 | undecidable | manual | S | 76 | 36.0417 | 96 | -0.38 | 46 |
IV.QLNO.HHE. | 2021-05-15T10:55:41.77 | 0.6 | undecidable | manual | P | 60 | 65.5899 | 50 | 0.23 | 45 |
GU.PZZ.HHE. | 2021-05-15T10:55:41.92 | 0.3 | undecidable | manual | P | 322 | 66.2781 | 50 | 0.28 | 66 |
GU.STV.HHE. | 2021-05-15T10:55:40.27 | 0.3 | undecidable | manual | S | 314 | 33.4443 | 97 | -0.53 | 66 |
GU.CANO.HHE. | 2021-05-15T10:55:40.04 | 0.3 | undecidable | manual | P | 68 | 52.2033 | 50 | 0.56 | 63 |
GU.BURY.HNZ. | 2021-05-15T10:55:38.35 | 0.6 | undecidable | manual | S | 191 | 28.5492 | 98 | -0.74 | 41 |
GU.ENR.HHZ. | 2021-05-15T10:55:38.66 | 0.6 | undecidable | manual | S | 323 | 27.2505 | 98 | -0.02 | 50 |
GU.GBOS.HHZ. | 2021-05-15T10:55:38.70 | 0.3 | undecidable | manual | S | 36 | 28.5492 | 98 | -0.41 | 69 |
GU.IMI.HHZ. | 2021-05-15T10:55:37.51 | 0.6 | undecidable | manual | S | 123 | 25.2525 | 99 | -0.48 | 46 |
GU.RORO.HHE. | 2021-05-15T10:55:36.52 | 0.3 | undecidable | manual | P | 76 | 36.0417 | 96 | 0.14 | 72 |
GU.GBOS.HHZ. | 2021-05-15T10:55:35.41 | 0.1 | undecidable | manual | P | 36 | 28.5492 | 98 | 0.53 | 89 |
GU.STV.HHE. | 2021-05-15T10:55:35.90 | 0.1 | undecidable | manual | P | 314 | 33.4443 | 97 | 0.04 | 99 |
GU.BURY.HNZ. | 2021-05-15T10:55:34.96 | 0.3 | undecidable | manual | P | 191 | 28.5492 | 98 | 0.09 | 74 |
GU.IMI.HHZ. | 2021-05-15T10:55:34.20 | 0.1 | undecidable | manual | P | 123 | 25.2525 | 99 | -0.04 | 100 |
GU.ENR.HHZ. | 2021-05-15T10:55:34.97 | 0.1 | undecidable | manual | P | 323 | 27.2505 | 98 | 0.34 | 94 |
FR.SAOF.HHZ.00 | 2021-05-15T10:55:32.21 | 0.6 | undecidable | manual | S | 228 | 7.9809 | 117 | 0 | 52 |
FR.SAOF.HHZ.00 | 2021-05-15T10:55:31.16 | 0.1 | undecidable | manual | P | 228 | 7.9809 | 117 | 0.26 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.IMI.HHN. | ML:1.0 | 0.00007244824 | 0.224 | AML | other | m | 2021-05-15T10:55:37.80 |
GU.IMI.HHE. | ML:0.9 | 0.00005428174500000001 | 0.2176 | AML | other | m | 2021-05-15T10:55:37.86 |
GU.ENR.HHN. | ML:1.1 | 0.0000722 | 0.34 | AML | other | m | 2021-05-15T10:55:38.78 |
GU.ENR.HHE. | ML:1.1 | 0.00006945 | 0.32 | AML | other | m | 2021-05-15T10:55:40.26 |
GU.BHB.HHN. | ML:1.1 | 0.000014252379999999998 | 0.224 | AML | other | m | 2021-05-15T10:55:59.45 |
GU.BHB.HHE. | ML:1.1 | 0.0000173082425 | 1.4432 | AML | other | m | 2021-05-15T10:56:01.77 |