Earthquake with magnitude of M 2.1 on date 04-11-1990 and time 01:04:04 (Italy) in region 1 km N Castel Vittorio (IM)

A magnitude M 2.1 earthquake occured in region: 1 km N Castel Vittorio (IM), on

  • 04-11-1990 00:04:04 (UTC)
  • 04-11-1990 01:04:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9410, 7.6780 at 11 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pigna IM 1 859 859
Castel Vittorio IM 1 287 1146
Bajardo IM 5 312 1458
Apricale IM 7 629 2087
Isolabona IM 7 679 2766
Perinaldo IM 8 870 3636
Rocchetta Nervina IM 8 298 3934
Triora IM 9 355 4289
Molini di Triora IM 10 617 4906
Ceriana IM 10 1250 6156
Dolceacqua IM 11 2074 8230
Airole IM 12 407 8637
Soldano IM 13 977 9614
Seborga IM 13 315 9929
Montalto Ligure IM 14 377 10306
San Biagio della Cima IM 14 1329 11635
Badalucco IM 14 1136 12771
Vallebona IM 14 1310 14081
Camporosso IM 14 5632 19713
Olivetta San Michele IM 15 211 19924
Carpasio IM 15 168 20092
Ospedaletti IM 16 3367 23459
Sanremo IM 16 54807 78266
Vallecrosia IM 17 6956 85222
Briga Alta CN 17 39 85261
Castellaro IM 18 1256 86517
Ventimiglia IM 18 24310 110827
Taggia IM 18 14116 124943
Bordighera IM 18 10469 135412
Rezzo IM 18 366 135778
Montegrosso Pian Latte IM 18 118 135896
Mendatica IM 18 185 136081
Pietrabruna IM 19 501 136582
Cosio d'Arroscia IM 20 221 136803
Pompeiana IM 20 823 137626
Riva Ligure IM 20 2910 140536

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Sanremo (54807 inhabitants)
51 Km S of Cuneo (56081 inhabitants)
76 Km SW of Savona (61345 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
M 2.1 1990-11-04
00:04:04
43.941 7.678 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 129839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-11-04 00:04:04 ± 0.122
Latitude 43.9410 ± 0.0094
Longitude 7.6780 ± 0.0110
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 129839

Uncertainty

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) 1362.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00955
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 129839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:42:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LRG.Z. 1990-11-04T00:04:40.60 10.0 undecidable manual SN 243 1.0656 0.34 0.3
--.LMR.Z. 1990-11-04T00:04:38.50 10.0 undecidable manual SN 234 1.0323 -1.08 0
--.FRF.Z. 1990-11-04T00:04:33.20 10.0 undecidable manual SG 243 0.8214 -0.16 0.5
--.LRG.Z. 1990-11-04T00:04:25.70 10.0 undecidable manual PN 243 1.0656 0.51 0.3
--.LMR.Z. 1990-11-04T00:04:24.70 10.0 undecidable manual PN 234 1.0323 -0.1 1.2
--.FRF.Z. 1990-11-04T00:04:21.40 10.0 undecidable manual PG 243 0.8214 0.19 1.2
--.PZZ.Z. 1990-11-04T00:04:18.69 10.0 undecidable manual PG 324 0.6882 0.04 1.6
--.FIN.Z. 1990-11-04T00:04:14.49 10.0 undecidable manual PG 55 0.4551 0.14 1.5
--.STV.Z. 1990-11-04T00:04:12.95 10.0 undecidable manual PG 321 0.3996 -0.14 1.5
--.SBF.Z. 1990-11-04T00:04:12.50 10.0 undecidable manual SG 246 0.1887 -0.21 0.5
--.ROB.Z. 1990-11-04T00:04:12.95 10.0 undecidable manual PG 21 0.3885 0.06 1.6
--.ENR.Z. 1990-11-04T00:04:11.82 10.0 undecidable manual PG 327 0.333 -0.19 1.4
--.SBF.Z. 1990-11-04T00:04:09.50 10.0 undecidable manual PG 246 0.1887 0.21 1.3
--.IMI.Z. 1990-11-04T00:04:08.44 10.0 undecidable manual PG 101 0.1554 -0.25 1.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download