Earthquake with magnitude of Md 2.2 on date 11-06-1986 and time 14:32:25 (Italy) in region 4 km N Vezzi Portio (SV)

A magnitude Md 2.2 earthquake occured in region: 4 km N Vezzi Portio (SV), on

  • 11-06-1986 12:32:25 (UTC)
  • 11-06-1986 14:32:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.26, 8.37 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Vezzi Portio SV 4 809 809
Quiliano SV 5 7232 8041
Vado Ligure SV 5 8336 16377
Spotorno SV 6 3803 20180
Bergeggi SV 6 1129 21309
Orco Feglino SV 6 890 22199
Mallare SV 7 1146 23345
Noli SV 7 2736 26081
Altare SV 8 2108 28189
Calice Ligure SV 9 1730 29919
Rialto SV 9 564 30483
Savona SV 10 61345 91828
Pallare SV 11 923 92751
Finale Ligure SV 11 11711 104462
Bormida SV 11 387 104849
Carcare SV 12 5587 110436
Albissola Marina SV 13 5487 115923
Magliolo SV 13 974 116897
Borgio Verezzi SV 13 2205 119102
Tovo San Giacomo SV 13 2582 121684
Albisola Superiore SV 14 10163 131847
Osiglia SV 14 444 132291
Giustenice SV 14 977 133268
Plodio SV 15 650 133918
Pietra Ligure SV 15 8992 142910
Cosseria SV 16 1105 144015
Celle Ligure SV 16 5237 149252
Cairo Montenotte SV 17 13269 162521
Millesimo SV 17 3383 165904
Loano SV 18 11407 177311
Stella SV 18 3009 180320
Murialdo SV 18 841 181161
Roccavignale SV 18 752 181913
Boissano SV 19 2492 184405
Cengio SV 19 3563 187968
Varazze SV 19 13251 201219
Borghetto Santo Spirito SV 20 4948 206167

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km W of Savona (61345 inhabitants)
47 Km W of Genova (586655 inhabitants)
67 Km E of Cuneo (56081 inhabitants)
68 Km NE of Sanremo (54807 inhabitants)
72 Km S of Asti (76202 inhabitants)
75 Km S of Alessandria (93943 inhabitants)
98 Km SE of Moncalieri (57294 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 2.2
M 2.3
1986-06-11
12:32:25
44.27 8.37 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 29119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-06-11 12:32:25 ± 0.392
Latitude 44.27 ± 0.01
Longitude 8.37 ± 0.03
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 29119

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) 2523.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 248
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00672
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 29119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:30:30

M:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 29119
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
--.STV.Z. 1986-06-11T12:32:51.70 10.0 undecidable manual SG 269 0.0067 0.02 0.5
--.IMP.Z. 1986-06-11T12:32:44.20 10.0 undecidable manual SG 224 0.0044 0.79 0
--.STV.Z. 1986-06-11T12:32:41.00 10.0 undecidable manual PG 269 0.0067 0.36 0.7
--.ROB.Z. 1986-06-11T12:32:38.90 10.0 undecidable manual SG 276 0.0032 -0.36 0.4
--.IMP.Z. 1986-06-11T12:32:35.40 10.0 undecidable manual PG 224 0.0044 -0.47 0.6
--.ROB.Z. 1986-06-11T12:32:33.20 10.0 undecidable manual PG 276 0.0032 -0.27 1.4
--.CKI.Z. 1986-06-11T12:32:33.00 10.0 undecidable manual SG 336 0.0015 0.23 0.6
--.FIN.Z. 1986-06-11T12:32:31.60 10.0 undecidable manual SG 244 0.0011 0.13 0.7
--.CKI.Z. 1986-06-11T12:32:30.00 10.0 undecidable manual PG 336 0.0015 0.27 1.4
--.FIN.Z. 1986-06-11T12:32:28.80 10.0 positive manual PG 244 0.0011 -0.17 3.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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