A magnitude M 2.3 earthquake occured in region: Costa Ligure Occidentale (Imperia), on
and geographic coordinates (lat, lon) 43.9660, 7.6260 at 9 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 |
---|---|---|---|---|
Pigna | IM | 5 | 859 | 859 |
Castel Vittorio | IM | 6 | 287 | 1146 |
Rocchetta Nervina | IM | 9 | 298 | 1444 |
Isolabona | IM | 10 | 679 | 2123 |
Apricale | IM | 10 | 629 | 2752 |
Bajardo | IM | 10 | 312 | 3064 |
Triora | IM | 11 | 355 | 3419 |
Perinaldo | IM | 12 | 870 | 4289 |
Airole | IM | 12 | 407 | 4696 |
Molini di Triora | IM | 12 | 617 | 5313 |
Olivetta San Michele | IM | 13 | 211 | 5524 |
Dolceacqua | IM | 13 | 2074 | 7598 |
Ceriana | IM | 15 | 1250 | 8848 |
Soldano | IM | 16 | 977 | 9825 |
Seborga | IM | 16 | 315 | 10140 |
San Biagio della Cima | IM | 16 | 1329 | 11469 |
Briga Alta | CN | 17 | 39 | 11508 |
Camporosso | IM | 17 | 5632 | 17140 |
Vallebona | IM | 17 | 1310 | 18450 |
Montalto Ligure | IM | 18 | 377 | 18827 |
Badalucco | IM | 19 | 1136 | 19963 |
Mendatica | IM | 19 | 185 | 20148 |
Montegrosso Pian Latte | IM | 19 | 118 | 20266 |
Vallecrosia | IM | 19 | 6956 | 27222 |
Carpasio | IM | 19 | 168 | 27390 |
Ventimiglia | IM | 20 | 24310 | 51700 |
Ospedaletti | IM | 20 | 3367 | 55067 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
M 2.3 | 1987-04-26 11:44:57 |
43.966 | 7.626 | 9 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 45739 |
Field | Value |
---|---|
Time (UTC) | 1987-04-26 11:44:57 ± 0.093 |
Latitude | 43.9660 ± 0.0082 |
Longitude | 7.6260 ± 0.0081 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 45739 |
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) | 1122.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 129 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
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) | 0.00154 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00939 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 45739 |
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. | 1987-04-26T11:45:33.70 | 10.0 | undecidable | manual | SN | 241 | 1.0434 | 0.25 | 0.4 | |
--.FRF.Z. | 1987-04-26T11:45:26.30 | 10.0 | undecidable | manual | SG | 240 | 0.8103 | 0.28 | 0.5 | |
--.LRG.Z. | 1987-04-26T11:45:18.00 | 10.0 | undecidable | manual | PN | 241 | 1.0434 | -0.34 | 0.8 | |
--.DA9.Z. | 1987-04-26T11:45:18.80 | 10.0 | undecidable | manual | SG | 333 | 0.5994 | -0.41 | 0.3 | |
--.FRF.Z. | 1987-04-26T11:45:14.00 | 10.0 | undecidable | manual | PG | 240 | 0.8103 | -0.05 | 1.8 | |
--.ROB.Z. | 1987-04-26T11:45:11.60 | 10.0 | undecidable | manual | SG | 27 | 0.3774 | -0.46 | 0.3 | |
--.DA9.Z. | 1987-04-26T11:45:10.20 | 10.0 | undecidable | manual | PG | 333 | 0.5994 | 0.08 | 2 | |
--.STV.Z. | 1987-04-26T11:45:10.70 | 10.0 | undecidable | manual | SG | 323 | 0.3552 | -0.6 | 0.1 | |
--.STV.Z. | 1987-04-26T11:45:06.00 | 10.0 | undecidable | manual | PG | 323 | 0.3552 | 0.45 | 0.7 | |
--.ROB.Z. | 1987-04-26T11:45:06.40 | 10.0 | undecidable | manual | PG | 27 | 0.3774 | 0.41 | 0.9 | |
--.IMP.Z. | 1987-04-26T11:45:05.70 | 10.0 | undecidable | manual | SG | 103 | 0.1998 | -0.2 | 0.7 | |
--.SBF.Z. | 1987-04-26T11:45:04.80 | 10.0 | undecidable | manual | SG | 233 | 0.1665 | -0.16 | 0.8 | |
--.IMP.Z. | 1987-04-26T11:45:02.40 | 10.0 | undecidable | manual | PG | 103 | 0.1998 | -0.03 | 2.3 | |
--.SBF.Z. | 1987-04-26T11:45:01.90 | 10.0 | undecidable | manual | PG | 233 | 0.1665 | 0.01 | 2.3 |