INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of M 2.0 on date 09-02-1985 and time 16:11:34 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude M 2.0 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 09-02-1985 16:11:34 (UTC)
  • 09-02-1985 17:11:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4, 6.78 at 12 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
Argentera CN 16 83 83
Acceglio CN 19 162 245

Municipalities with at least 50000 inhabitants

An earthquake occurred to
62 Km W of Cuneo (56081 inhabitants)
98 Km SW of Moncalieri (57294 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 1985-02-09
16:11:34
44.4 6.78 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 1429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-09 16:11:34 ± 0.666
Latitude 44.40 ± 0.04
Longitude 6.78 ± 0.04
Depth (km) 12 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 1429

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) 5492.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 273
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.0038
Epicentral distance of station farthest from the epicenter (degree) 0.00971
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

M:2

Field Value
Value 2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 1429
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
--.LMR.Z. 1985-02-09T16:12:10.00 10.0 undecidable manual SN 190 0.0097 -0.17 0.7
--.LRG.Z. 1985-02-09T16:12:08.40 10.0 undecidable manual SN 198 0.0089 0.41 0.6
--.FRF.Z. 1985-02-09T16:12:04.40 10.0 undecidable manual SG 186 0.0076 0.97 0.1
--.LMR.Z. 1985-02-09T16:11:54.80 10.0 undecidable manual PN 190 0.0097 -0.21 1.7
--.LRG.Z. 1985-02-09T16:11:53.80 10.0 undecidable manual PN 198 0.0089 0.05 2
--.ENR.Z. 1985-02-09T16:11:51.10 10.0 undecidable manual SG 111 0.0044 -0.95 0.1
--.FRF.Z. 1985-02-09T16:11:50.40 10.0 undecidable manual PG 186 0.0076 -0.72 0.8
--.STV.Z. 1985-02-09T16:11:49.60 10.0 undecidable manual SG 111 0.0038 -0.21 0.8
--.ENR.Z. 1985-02-09T16:11:45.00 10.0 undecidable manual PG 111 0.0044 0.45 1.5
--.STV.Z. 1985-02-09T16:11:43.60 10.0 undecidable manual PG 111 0.0038 0.34 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download