Earthquake with magnitude of M 3.0 on date 27-02-1985 and time 14:06:19 (Italy) in region Costa Ligure centro occidentale (Savona)

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

  • 27-02-1985 13:06:19 (UTC)
  • 27-02-1985 14:06:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.91, 8.51 at 10 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km S of Savona (61345 inhabitants)
59 Km E of Sanremo (54807 inhabitants)
65 Km SW of Genova (586655 inhabitants)
94 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
Rev 1000 M 3.0 1985-02-27
13:06:19
43.91 8.51 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 2709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-27 13:06:19 ± 0.444
Latitude 43.91 ± 0.02
Longitude 8.51 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2709

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) 2899.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 307
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.00542
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:3

Field Value
Value 3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 2709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:42:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ROB.Z. 1985-02-27T13:06:40.10 10.0 undecidable manual SG 310 0.0054 -0.35 0.1
--.IMP.Z. 1985-02-27T13:06:35.50 10.0 undecidable manual SG 270 0.004 0.07 0.7
--.FIN.Z. 1985-02-27T13:06:33.30 10.0 undecidable manual SG 323 0.0032 0.38 0.1
--.ROB.Z. 1985-02-27T13:06:31.40 10.0 undecidable manual PG 310 0.0054 -0.06 1.5
--.IMP.Z. 1985-02-27T13:06:28.60 10.0 undecidable manual PG 270 0.004 0.04 1.8
--.FIN.Z. 1985-02-27T13:06:27.10 10.0 positive manual PG 323 0.0032 -0.02 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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