Earthquake with magnitude of Md 3.0 on date 29-10-1986 and time 09:13:31 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude Md 3.0 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 29-10-1986 08:13:31 (UTC)
  • 29-10-1986 09:13:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.86, 8.28 at 6 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
Cervo IM 15 1187 1187
Andora SV 15 7552 8739
Laigueglia SV 16 1810 10549
San Bartolomeo al Mare IM 16 3129 13678
Diano Marina IM 17 5977 19655
Alassio SV 18 10934 30589
Diano Castello IM 18 2214 32803
Diano San Pietro IM 19 1145 33948
Villa Faraldi IM 19 444 34392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Sanremo (54807 inhabitants)
52 Km SW of Savona (61345 inhabitants)
80 Km SW of Genova (586655 inhabitants)
83 Km SE of Cuneo (56081 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
Md 3.0
M 3.2
1986-10-29
08:13:31
43.86 8.28 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 36399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-29 08:13:31 ± 0.435
Latitude 43.86 ± 0.02
Longitude 8.28 ± 0.03
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 36399

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) 2832.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.04104
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 36399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:36:36

M:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 36399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CAF.Z. 1986-10-29T08:14:41.20 10.0 undecidable manual PN 285 0.041 0.82 0.3
--.BN9.Z. 1986-10-29T08:14:22.50 10.0 undecidable manual SN 316 0.0148 0.7 0.3
--.LPG.Z. 1986-10-29T08:14:06.20 10.0 undecidable manual PN 326 0.0176 1.54 0.1
--.DA9.Z. 1986-10-29T08:14:04.50 10.0 undecidable manual SG 310 0.0087 -0.66 0.3
--.BN9.Z. 1986-10-29T08:14:02.50 10.0 undecidable manual PN? 316 0.0148 2.13 0
--.ORX.Z. 1986-10-29T08:14:01.50 10.0 undecidable manual PN 352 0.0159 -0.68 0.7
--.RRL.Z. 1986-10-29T08:13:59.10 10.0 undecidable manual PN 314 0.0134 0.74 0.7
--.RSP.Z. 1986-10-29T08:13:58.20 10.0 undecidable manual PN 330 0.0133 0.15 1.2
--.LRG.Z. 1986-10-29T08:13:58.00 10.0 undecidable manual PN 253 0.013 0.39 1
--.CVF.Z. 1986-10-29T08:13:56.20 10.0 undecidable manual PN 161 0.0122 -0.28 1.1
--.LMR.Z. 1986-10-29T08:13:56.20 10.0 undecidable manual PN 247 0.0125 -0.58 0.9
--.BVT.Z. 1986-10-29T08:13:54.10 10.0 undecidable manual PN 60 0.0113 -0.92 0.5
--.FRF.Z. 1986-10-29T08:13:54.30 10.0 undecidable manual PN 255 0.0109 -0.16 1.3
--.CKI.Z. 1986-10-29T08:13:51.50 10.0 undecidable manual SG 359 0.0049 -0.07 0.8
--.DA9.Z. 1986-10-29T08:13:51.50 10.0 undecidable manual PG 310 0.0087 0.74 0.7
--.SOO.Z. 1986-10-29T08:13:51.90 10.0 undecidable manual PG 307 0.0095 -0.36 2.3
--.STV.Z. 1986-10-29T08:13:46.50 10.0 undecidable manual PG 299 0.007 -0.66 1.7
--.GEN.Z. 1986-10-29T08:13:46.80 10.0 undecidable manual PG 39 0.0066 0.67 0.8
--.ENR.Z. 1986-10-29T08:13:45.10 10.0 undecidable manual PG 300 0.0064 -0.79 1.4
--.SBF.Z. 1986-10-29T08:13:44.40 10.0 undecidable manual PG 269 0.0054 0.5 1
--.CKI.Z. 1986-10-29T08:13:43.50 10.0 undecidable manual PG 359 0.0049 0.59 0.9
--.ROB.Z. 1986-10-29T08:13:41.60 10.0 undecidable manual PG 326 0.0047 -0.78 1.4
--.FIN.Z. 1986-10-29T08:13:38.90 10.0 undecidable manual PG 351 0.0031 -0.02 2.6
--.IMP.Z. 1986-10-29T08:13:37.90 10.0 undecidable manual PG 280 0.0025 0.39 2.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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