Earthquake with magnitude of Md 2.0 on date 20-05-1986 and time 18:08:20 (Italy) in region 1 km W Giustenice (SV)

A magnitude Md 2.0 earthquake occured in region: 1 km W Giustenice (SV), on

  • 20-05-1986 16:08:20 (UTC)
  • 20-05-1986 18:08:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.17, 8.24 at 13 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
Giustenice SV 1 977 977
Magliolo SV 3 974 1951
Tovo San Giacomo SV 3 2582 4533
Boissano SV 4 2492 7025
Pietra Ligure SV 4 8992 16017
Loano SV 5 11407 27424
Toirano SV 5 2644 30068
Borgio Verezzi SV 6 2205 32273
Borghetto Santo Spirito SV 6 4948 37221
Calice Ligure SV 6 1730 38951
Rialto SV 6 564 39515
Balestrino SV 7 595 40110
Ceriale SV 8 5561 45671
Finale Ligure SV 9 11711 57382
Bardineto SV 9 756 58138
Orco Feglino SV 9 890 59028
Castelvecchio di Rocca Barbena SV 11 145 59173
Erli SV 11 245 59418
Zuccarello SV 12 309 59727
Cisano sul Neva SV 12 2085 61812
Vezzi Portio SV 12 809 62621
Calizzano SV 12 1475 64096
Bormida SV 12 387 64483
Osiglia SV 13 444 64927
Albenga SV 14 24213 89140
Castelbianco SV 14 330 89470
Mallare SV 14 1146 90616
Arnasco SV 15 645 91261
Noli SV 15 2736 93997
Villanova d'Albenga SV 16 2657 96654
Spotorno SV 16 3803 100457
Garessio CN 17 3244 103701
Vendone SV 17 388 104089
Murialdo SV 17 841 104930
Ortovero SV 17 1586 106516
Nasino SV 18 207 106723
Pallare SV 18 923 107646
Onzo SV 19 219 107865
Alassio SV 19 10934 118799
Garlenda SV 19 1254 120053
Bergeggi SV 19 1129 121182
Priola CN 19 701 121883
Vado Ligure SV 19 8336 130219
Massimino SV 20 113 130332
Quiliano SV 20 7232 137564
Alto CN 20 128 137692

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Savona (61345 inhabitants)
53 Km NE of Sanremo (54807 inhabitants)
60 Km E of Cuneo (56081 inhabitants)
62 Km W of Genova (586655 inhabitants)
81 Km S of Asti (76202 inhabitants)
88 Km SW of Alessandria (93943 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 2.0 1986-05-20
16:08:20
44.17 8.24 13 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 27719
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-20 16:08:20 ± 0.365
Latitude 44.17 ± 0.01
Longitude 8.24 ± 0.03
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 27719

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) 2586.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 217
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00316
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 27719
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:29:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.IMP.Z. 1986-05-20T16:08:33.00 10.0 undecidable manual SG 224 0.0032 -0.42 0.4
--.ROB.Z. 1986-05-20T16:08:31.20 10.0 undecidable manual SG 296 0.0026 -0.22 0.7
--.CKI.Z. 1986-05-20T16:08:30.50 10.0 undecidable manual SG 6 0.0022 0.36 0.4
--.IMP.Z. 1986-05-20T16:08:27.80 10.0 undecidable manual PG 224 0.0032 0.02 1.9
--.ROB.Z. 1986-05-20T16:08:26.90 10.0 undecidable manual PG 296 0.0026 0.28 1.6
--.CKI.Z. 1986-05-20T16:08:25.00 10.0 undecidable manual PG 6 0.0022 -0.88 0.6
--.FIN.Z. 1986-05-20T16:08:24.40 10.0 undecidable manual SG 331 0.0003 -0.37 0.7
--.FIN.Z. 1986-05-20T16:08:23.10 10.0 undecidable manual PG 331 0.0003 0.32 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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