Earthquake with magnitude of M 2.0 on date 06-02-1985 and time 09:16:33 (UTC) in region Costa Francese (FRANCIA)

A magnitude M 2.0 earthquake occured in region: Costa Francese (FRANCIA), on

  • 06-02-1985 09:16:33 (UTC)
  • 06-02-1985 10:16:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.82, 7.38 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Olivetta San Michele IM 13 211 211
Airole IM 16 407 618
Ventimiglia IM 19 24310 24928
Rocchetta Nervina IM 20 298 25226

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Sanremo (54807 inhabitants)
66 Km S 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 1985-02-06
09:16:33
43.82 7.38 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 1199
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-06 09:16:33 ± 0.18
Latitude 43.82 ± 0.01
Longitude 7.38 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 1199

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) 1144.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 280
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00348
Epicentral distance of station farthest from the epicenter (degree) 0.00542
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 1199
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
--.ROB.Z. 1985-02-06T09:16:54.50 10.0 undecidable manual SG 36 0.0054 0.03 0.7
--.ENR.Z. 1985-02-06T09:16:48.30 10.0 undecidable manual SG 4 0.0036 -0.01 0.9
--.STV.Z. 1985-02-06T09:16:48.80 10.0 undecidable manual SG 356 0.0039 -0.3 0.1
--.IMP.Z. 1985-02-06T09:16:47.70 10.0 undecidable manual SG 75 0.0035 0.17 0.4
--.ROB.Z. 1985-02-06T09:16:45.50 10.0 undecidable manual PG 36 0.0054 0.02 1.8
--.ENR.Z. 1985-02-06T09:16:42.10 10.0 undecidable manual PG 4 0.0036 0.18 0.9
--.STV.Z. 1985-02-06T09:16:42.40 10.0 undecidable manual PG 356 0.0039 0.02 2.1
--.IMP.Z. 1985-02-06T09:16:41.30 10.0 undecidable manual PG 75 0.0035 -0.17 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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