Earthquake with magnitude of Md 2.4 on date 28-05-1985 and time 01:35:38 (Italy) in region 2 km E Castel Vittorio (IM)

A magnitude Md 2.4 earthquake occured in region: 2 km E Castel Vittorio (IM), on

  • 27-05-1985 23:35:38 (UTC)
  • 28-05-1985 01:35:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.93, 7.7 at 0 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
Castel Vittorio IM 2 287 287
Bajardo IM 3 312 599
Pigna IM 3 859 1458
Apricale IM 6 629 2087
Perinaldo IM 7 870 2957
Isolabona IM 7 679 3636
Ceriana IM 8 1250 4886
Triora IM 9 355 5241
Rocchetta Nervina IM 9 298 5539
Molini di Triora IM 9 617 6156
Dolceacqua IM 11 2074 8230
Seborga IM 11 315 8545
Montalto Ligure IM 12 377 8922
Soldano IM 12 977 9899
Badalucco IM 12 1136 11035
San Biagio della Cima IM 13 1329 12364
Vallebona IM 13 1310 13674
Airole IM 13 407 14081
Sanremo IM 14 54807 68888
Camporosso IM 14 5632 74520
Carpasio IM 14 168 74688
Ospedaletti IM 14 3367 78055
Castellaro IM 15 1256 79311
Taggia IM 15 14116 93427
Vallecrosia IM 16 6956 100383
Olivetta San Michele IM 16 211 100594
Bordighera IM 17 10469 111063
Pietrabruna IM 17 501 111564
Ventimiglia IM 17 24310 135874
Pompeiana IM 17 823 136697
Rezzo IM 17 366 137063
Riva Ligure IM 18 2910 139973
Briga Alta CN 18 39 140012
Terzorio IM 18 216 140228
Montegrosso Pian Latte IM 18 118 140346
Mendatica IM 19 185 140531
Aurigo IM 19 347 140878
Santo Stefano al Mare IM 19 2197 143075
PrelĂ  IM 19 503 143578
Cosio d'Arroscia IM 20 221 143799

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Sanremo (54807 inhabitants)
53 Km S of Cuneo (56081 inhabitants)
75 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
Rev 1000 Md 2.4 1985-05-27
23:35:38
43.93 7.7 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 7379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-05-27 23:35:38 ± 0.924
Latitude 43.93 ± 0.05
Longitude 7.70 ± 0.07
Depth (km) 0 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7379

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) 8234.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 196
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00348
Epicentral distance of station farthest from the epicenter (degree) 0.01206
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 7379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:11:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LMR.Z. 1985-05-27T23:36:15.70 10.0 undecidable manual SG 236 0.0094 -0.36 0.5
--.FRF.Z. 1985-05-27T23:36:08.40 10.0 undecidable manual SG 244 0.0076 -1.2 0.1
--.BN9.Z. 1985-05-27T23:36:05.80 10.0 undecidable manual PN 327 0.0121 1.13 0.3
--.CK1.Z. 1985-05-27T23:36:02.00 10.0 undecidable manual SG 39 0.0057 -1.09 0.2
--.LMR.Z. 1985-05-27T23:36:01.00 10.0 undecidable manual PG 236 0.0094 0.72 0.8
--.LRG.Z. 1985-05-27T23:36:00.00 10.0 undecidable manual PG 244 0.0096 -0.87 0.6
--.FRF.Z. 1985-05-27T23:35:56.70 10.0 undecidable manual PG 244 0.0076 0.16 1.6
--.ROB.Z. 1985-05-27T23:35:53.30 10.0 undecidable manual SG 18 0.0035 -0.6 0.7
--.CK1.Z. 1985-05-27T23:35:53.00 10.0 undecidable manual PG 39 0.0057 0.21 1.6
--.ROB.Z. 1985-05-27T23:35:47.50 10.0 undecidable manual PG 18 0.0035 0.02 3.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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