Earthquake with magnitude of M 2.0 on date 13-02-1986 and time 14:41:14 (Italy) in region Costa Ligure centro occidentale (Savona)

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

  • 13-02-1986 13:41:14 (UTC)
  • 13-02-1986 14:41:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.24, 8.52 at 11 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
Bergeggi SV 6 1129 1129
Vado Ligure SV 8 8336 9465
Spotorno SV 8 3803 13268
Savona SV 9 61345 74613
Noli SV 9 2736 77349
Albissola Marina SV 10 5487 82836
Quiliano SV 11 7232 90068
Albisola Superiore SV 12 10163 100231
Celle Ligure SV 12 5237 105468
Vezzi Portio SV 13 809 106277
Varazze SV 15 13251 119528
Orco Feglino SV 16 890 120418
Finale Ligure SV 16 11711 132129
Altare SV 18 2108 134237
Stella SV 18 3009 137246
Calice Ligure SV 18 1730 138976
Mallare SV 19 1146 140122
Borgio Verezzi SV 19 2205 142327
Rialto SV 20 564 142891
Cogoleto GE 20 9172 152063

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SE of Savona (61345 inhabitants)
38 Km SW of Genova (586655 inhabitants)
75 Km NE of Sanremo (54807 inhabitants)
76 Km S of Alessandria (93943 inhabitants)
78 Km SE of Asti (76202 inhabitants)
79 Km E 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
Rev 1000 M 2.0 1986-02-13
13:41:14
44.24 8.52 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 22649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-02-13 13:41:14 ± 1.965
Latitude 44.24 ± 0.09
Longitude 8.52 ± 0.15
Depth (km) 11 ± 74 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 22649

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) 15459.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 316
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.00761
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

M:2

Field Value
Value 2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 22649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.STV.-. 1986-02-13T13:41:42.00 10.0 undecidable manual SG 271 0.0076 -1.35 0.3
--.IMP.-. 1986-02-13T13:41:35.50 10.0 undecidable manual SG 234 0.0049 1.74 0.2
--.STV.-. 1986-02-13T13:41:31.90 10.0 undecidable manual PG 271 0.0076 0.91 1.1
--.IMP.-. 1986-02-13T13:41:24.10 10.0 undecidable manual PG 234 0.0049 -1.36 0.8
--.ROB.-. 1986-02-13T13:41:23.80 10.0 undecidable manual PG 277 0.0041 -0.07 2.1
--.FIN.-. 1986-02-13T13:41:22.10 10.0 undecidable manual SG 262 0.0019 -1.13 0.4
--.FIN.-. 1986-02-13T13:41:19.40 10.0 undecidable manual PG 262 0.0019 0.02 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download