A magnitude M 2.1 earthquake occured in region: Costa Ligure Occidentale (Imperia), on
and geographic coordinates (lat, lon) 43.9370, 7.5100 at 10 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 |
---|---|---|---|---|
Olivetta San Michele | IM | 6 | 211 | 211 |
Airole | IM | 8 | 407 | 618 |
Rocchetta Nervina | IM | 9 | 298 | 916 |
Isolabona | IM | 12 | 679 | 1595 |
Pigna | IM | 12 | 859 | 2454 |
Castel Vittorio | IM | 13 | 287 | 2741 |
Dolceacqua | IM | 13 | 2074 | 4815 |
Apricale | IM | 14 | 629 | 5444 |
Perinaldo | IM | 15 | 870 | 6314 |
Camporosso | IM | 17 | 5632 | 11946 |
Soldano | IM | 17 | 977 | 12923 |
Bajardo | IM | 17 | 312 | 13235 |
San Biagio della Cima | IM | 17 | 1329 | 14564 |
Ventimiglia | IM | 18 | 24310 | 38874 |
Vallebona | IM | 19 | 1310 | 40184 |
Seborga | IM | 19 | 315 | 40499 |
Vallecrosia | IM | 19 | 6956 | 47455 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
M 2.1 | 1991-07-26 02:45:32 |
43.937 | 7.51 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 146329 |
Field | Value |
---|---|
Time (UTC) | 1991-07-26 02:45:32 ± 0.103 |
Latitude | 43.9370 ± 0.0071 |
Longitude | 7.5100 ± 0.0114 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 146329 |
Field | Value |
---|---|
Preferred uncertainty description | horizontal uncertainty |
Semi-major axis of confidence ellipse (meter) | |
Semi-minor axis of confidence ellipse (meter) | |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1207.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 120 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00081 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00858 |
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 | 2.1 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 146329 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 09:42:56 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.LRG.Z. | 1991-07-26T02:46:06.20 | 10.0 | undecidable | manual | SG | 240 | 0.9546 | 0.56 | 0 | |
--.LMR.Z. | 1991-07-26T02:46:05.20 | 10.0 | undecidable | manual | SG | 230 | 0.9324 | 0.16 | 0.5 | |
--.FRF.Z. | 1991-07-26T02:45:58.00 | 10.0 | undecidable | manual | SG | 239 | 0.7215 | -0.17 | 0.5 | |
--.LRG.Z. | 1991-07-26T02:45:52.10 | 10.0 | undecidable | manual | PG | 240 | 0.9546 | 0.31 | 0.7 | |
--.LMR.Z. | 1991-07-26T02:45:51.40 | 10.0 | undecidable | manual | PG | 230 | 0.9324 | -0.05 | 1.4 | |
--.FRF.Z. | 1991-07-26T02:45:47.40 | 10.0 | undecidable | manual | PG | 239 | 0.7215 | -0.09 | 1.6 | |
--.ROB.Z. | 1991-07-26T02:45:42.19 | 10.0 | undecidable | manual | PG | 35 | 0.444 | -0.11 | 1.8 | |
--.STV.Z. | 1991-07-26T02:45:40.24 | 10.0 | undecidable | manual | PG | 337 | 0.333 | -0.04 | 1.9 | |
--.IMI.Z. | 1991-07-26T02:45:39.42 | 10.0 | undecidable | manual | PG | 95 | 0.2664 | 0.29 | 1 | |
--.ENR.Z. | 1991-07-26T02:45:39.42 | 10.0 | undecidable | manual | PG | 347 | 0.2886 | -0.06 | 1.9 | |
--.SBF.Z. | 1991-07-26T02:45:37.29 | 10.0 | undecidable | manual | SG | 215 | 0.0888 | -0.54 | 0.1 | |
--.SBF.Z. | 1991-07-26T02:45:35.40 | 10.0 | undecidable | manual | PG | 215 | 0.0888 | -0.34 | 0.8 |