A magnitude Md 2.2 earthquake occured in region: Costa Ligure Occidentale (Imperia), on
and geographic coordinates (lat, lon) 43.8300, 8.0470 at 8 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 |
---|---|---|---|---|
Imperia | IM | 7 | 42034 | 42034 |
San Lorenzo al Mare | IM | 7 | 1297 | 43331 |
Costarainera | IM | 9 | 828 | 44159 |
Civezza | IM | 9 | 609 | 44768 |
Cipressa | IM | 9 | 1290 | 46058 |
Diano Marina | IM | 10 | 5977 | 52035 |
Diano Castello | IM | 11 | 2214 | 54249 |
Dolcedo | IM | 12 | 1415 | 55664 |
Diano San Pietro | IM | 12 | 1145 | 56809 |
Santo Stefano al Mare | IM | 12 | 2197 | 59006 |
San Bartolomeo al Mare | IM | 12 | 3129 | 62135 |
Cervo | IM | 12 | 1187 | 63322 |
Terzorio | IM | 12 | 216 | 63538 |
Pontedassio | IM | 13 | 2323 | 65861 |
Pompeiana | IM | 13 | 823 | 66684 |
Diano Arentino | IM | 13 | 722 | 67406 |
Riva Ligure | IM | 13 | 2910 | 70316 |
Pietrabruna | IM | 13 | 501 | 70817 |
Vasia | IM | 14 | 389 | 71206 |
PrelĂ | IM | 14 | 503 | 71709 |
Castellaro | IM | 15 | 1256 | 72965 |
Taggia | IM | 16 | 14116 | 87081 |
Villa Faraldi | IM | 16 | 444 | 87525 |
Andora | SV | 16 | 7552 | 95077 |
Chiusavecchia | IM | 16 | 577 | 95654 |
Chiusanico | IM | 17 | 607 | 96261 |
Lucinasco | IM | 17 | 272 | 96533 |
Borgomaro | IM | 18 | 865 | 97398 |
Laigueglia | SV | 19 | 1810 | 99208 |
Badalucco | IM | 19 | 1136 | 100344 |
Stellanello | SV | 19 | 808 | 101152 |
Caravonica | IM | 20 | 282 | 101434 |
Montalto Ligure | IM | 20 | 377 | 101811 |
Testico | SV | 20 | 196 | 102007 |
Aurigo | IM | 20 | 347 | 102354 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2
M 2.2 |
1987-02-21 23:36:16 |
43.83 | 8.047 | 8 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 41799 |
Field | Value |
---|---|
Time (UTC) | 1987-02-21 23:36:16 ± 0.441 |
Latitude | 43.8300 ± 0.0244 |
Longitude | 8.0470 ± 0.0176 |
Depth (km) | 8 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 41799 |
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) | 3053.9 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 291 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00121 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00858 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | Md |
Reference to an origin | 41799 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:41:33 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 41799 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 09:48:29 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.SOO.Z. | 1987-02-21T23:36:49.80 | 10.0 | undecidable | manual | SG | 315 | 0.9546 | 0.15 | 0.6 | |
--.DA9.Z. | 1987-02-21T23:36:48.00 | 10.0 | undecidable | manual | SG | 319 | 0.8769 | 0.64 | 0.2 | |
--.STV.Z. | 1987-02-21T23:36:39.80 | 10.0 | undecidable | manual | SG | 309 | 0.6549 | -0.52 | 0.4 | |
--.DA9.Z. | 1987-02-21T23:36:35.00 | 10.0 | undecidable | manual | PG | 319 | 0.8769 | 0.66 | 0.5 | |
--.SOO.Z. | 1987-02-21T23:36:35.60 | 10.0 | undecidable | manual | PG | 315 | 0.9546 | -0.06 | 1.7 | |
--.ROB.Z. | 1987-02-21T23:36:34.70 | 10.0 | undecidable | manual | SG | 345 | 0.4884 | 0.08 | 0.9 | |
--.FIN.Z. | 1987-02-21T23:36:31.30 | 10.0 | undecidable | manual | SG | 16 | 0.3885 | -0.35 | 0.6 | |
--.STV.Z. | 1987-02-21T23:36:29.60 | 10.0 | undecidable | manual | PG | 309 | 0.6549 | -0.67 | 0.5 | |
--.ROB.Z. | 1987-02-21T23:36:27.10 | 10.0 | undecidable | manual | PG | 345 | 0.4884 | 0.11 | 2.1 | |
--.FIN.Z. | 1987-02-21T23:36:25.20 | 10.0 | undecidable | manual | PG | 16 | 0.3885 | -0.07 | 2.2 | |
--.IMP.Z. | 1987-02-21T23:36:22.10 | 10.0 | undecidable | manual | SG | 308 | 0.1332 | -0.48 | 0.4 | |
--.IMP.Z. | 1987-02-21T23:36:20.30 | 10.0 | undecidable | manual | PG | 308 | 0.1332 | 0.25 | 1.8 |