Earthquake with magnitude of M 2.0 on date 02-10-1985 and time 17:17:47 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude M 2.0 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 02-10-1985 16:17:47 (UTC)
  • 02-10-1985 17:17:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.12, 8.37 at 24 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
Finale Ligure SV 6 11711 11711
Borgio Verezzi SV 7 2205 13916
Pietra Ligure SV 7 8992 22908
Loano SV 9 11407 34315
Borghetto Santo Spirito SV 10 4948 39263
Tovo San Giacomo SV 10 2582 41845
Noli SV 11 2736 44581
Ceriale SV 11 5561 50142
Calice Ligure SV 11 1730 51872
Giustenice SV 11 977 52849
Boissano SV 12 2492 55341
Orco Feglino SV 12 890 56231
Magliolo SV 12 974 57205
Vezzi Portio SV 12 809 58014
Toirano SV 13 2644 60658
Spotorno SV 13 3803 64461
Rialto SV 13 564 65025
Albenga SV 14 24213 89238
Balestrino SV 15 595 89833
Bergeggi SV 16 1129 90962
Vado Ligure SV 18 8336 99298
Cisano sul Neva SV 18 2085 101383
Villanova d'Albenga SV 20 2657 104040
Alassio SV 20 10934 114974
Zuccarello SV 20 309 115283
Quiliano SV 20 7232 122515
Mallare SV 20 1146 123661
Castelvecchio di Rocca Barbena SV 20 145 123806

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Savona (61345 inhabitants)
56 Km SW of Genova (586655 inhabitants)
57 Km NE of Sanremo (54807 inhabitants)
72 Km E of Cuneo (56081 inhabitants)
88 Km S of Asti (76202 inhabitants)
91 Km S 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 M 2.0 1985-10-02
16:17:47
44.12 8.37 24 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 14039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-10-02 16:17:47 ± 1.131
Latitude 44.12 ± 0.03
Longitude 8.37 ± 0.07
Depth (km) 24 ± 8 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 14039

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) 6881.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 291
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.00356
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

M:2

Field Value
Value 2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 14039
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
--.IMP.Z. 1985-10-02T16:18:04.00 10.0 undecidable manual SG 239 0.0035 0.61 0.5
--.ROB.Z. 1985-10-02T16:18:04.00 10.0 undecidable manual SG 297 0.0036 0.54 0.6
--.IMP.Z. 1985-10-02T16:17:56.40 10.0 undecidable manual PG 239 0.0035 -0.43 1.7
--.ROB.Z. 1985-10-02T16:17:56.50 10.0 undecidable manual PG 297 0.0036 -0.37 1.8
--.FIN.Z. 1985-10-02T16:17:55.80 10.0 undecidable manual SG 308 0.0012 -1.15 0.2
--.FIN.Z. 1985-10-02T16:17:53.90 10.0 undecidable manual PG 308 0.0012 0.79 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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