Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.3 on date 30-12-1989 and time 11:52:15 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude Md 2.3 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 30-12-1989 10:52:15 (UTC)
  • 30-12-1989 11:52:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.0130, 6.7360 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bardonecchia TO 8 3215 3215
Oulx TO 8 3307 6522
Cesana Torinese TO 8 967 7489
Claviere TO 8 214 7703
Sauze d'Oulx TO 10 1109 8812
Sauze di Cesana TO 13 244 9056
Sestriere TO 13 929 9985
Salbertrand TO 14 596 10581
Pragelato TO 16 776 11357
Exilles TO 18 273 11630

Municipalities with at least 50000 inhabitants

An earthquake occurred to
75 Km W of Torino (890529 inhabitants)
75 Km W of Moncalieri (57294 inhabitants)
94 Km NW 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
Bulletin
Rev1000 		Md 2.3 1989-12-30
10:52:15		 45.013 6.736 9 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 106989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-12-30 10:52:15 ± 0.182
Latitude 45.0130 ± 0.0108
Longitude 6.7360 ± 0.0345
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 106989

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) 2969.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.02801
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 106989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:39:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BGF.Z. 1989-12-30T10:53:05.20 10.0 undecidable manual PN 301 3.108 0.94 0.7
--.PCP.Z. 1989-12-30T10:52:58.80 10.0 undecidable manual SN 109 1.3542 0.29 0.6
--.FIN.Z. 1989-12-30T10:52:56.00 10.0 undecidable manual SN 126 1.3098 -1.41 0.1
--.ORX.Z. 1989-12-30T10:52:50.90 10.0 undecidable manual SN 54 1.0656 -0.6 0.6
--.ROB.Z. 1989-12-30T10:52:50.90 10.0 undecidable manual SN 130 1.0656 -0.69 0.5
--.ENR.Z. 1989-12-30T10:52:45.30 10.0 undecidable manual SG 147 0.9213 -1.71 0.1
--.LRG.Z. 1989-12-30T10:52:45.50 10.0 undecidable manual PN! 189 1.5762 2.37 0
--.STV.Z. 1989-12-30T10:52:44.50 10.0 undecidable manual SG 150 0.8658 -0.78 0.5
--.FRF.Z. 1989-12-30T10:52:42.90 10.0 undecidable manual PN 182 1.443 1.52 0.4
--.PCP.Z. 1989-12-30T10:52:41.00 10.0 undecidable manual PN 109 1.3542 0.8 0.9
--.SBF.Z. 1989-12-30T10:52:40.40 10.0 undecidable manual PN 156 1.2543 1.77 0.2
--.FIN.Z. 1989-12-30T10:52:39.70 10.0 undecidable manual PN 126 1.3098 0.13 1.6
--.IMI.Z. 1989-12-30T10:52:39.20 10.0 undecidable manual PN 142 1.3764 -1.13 0.4
--.ORX.Z. 1989-12-30T10:52:36.30 10.0 undecidable manual PN 54 1.0656 0.15 1.8
--.ROB.Z. 1989-12-30T10:52:36.50 10.0 undecidable manual PN 130 1.0656 0.29 1.7
--.PZZ.Z. 1989-12-30T10:52:34.70 10.0 undecidable manual SG 152 0.5661 -0.93 0.3
--.LSD.Z. 1989-12-30T10:52:33.70 10.0 undecidable manual SG 33 0.5328 -0.77 0.6
--.ENR.Z. 1989-12-30T10:52:33.00 10.0 undecidable manual PG 147 0.9213 -0.56 1.4
--.LPG.Z. 1989-12-30T10:52:32.10 10.0 undecidable manual SG 1 0.4773 -0.79 0.4
--.LPL.Z. 1989-12-30T10:52:32.40 10.0 undecidable manual SG 359 0.4995 -1.09 0.2
--.STV.Z. 1989-12-30T10:52:32.50 10.0 undecidable manual PG 150 0.8658 -0.06 2
--.RSP.Z. 1989-12-30T10:52:30.70 10.0 undecidable manual SG 69 0.3885 0.75 0.3
--.LSD.Z. 1989-12-30T10:52:26.40 10.0 undecidable manual PG 33 0.5328 0.08 2
--.PZZ.Z. 1989-12-30T10:52:26.70 10.0 undecidable manual PG 152 0.5661 -0.3 1.8
--.LPG.Z. 1989-12-30T10:52:25.50 10.0 undecidable manual PG 1 0.4773 0.09 2
--.LPL.Z. 1989-12-30T10:52:25.80 10.0 undecidable manual PG 359 0.4995 0.04 2
--.RSP.Z. 1989-12-30T10:52:24.40 10.0 undecidable manual PG 69 0.3885 0.69 1.1
--.RRL.Z. 1989-12-30T10:52:20.10 10.0 undecidable manual SG 160 0.0888 0.05 0.8
--.RRL.Z. 1989-12-30T10:52:18.40 10.0 undecidable manual PG 160 0.0888 0.4 1.7
--.BNI.Z. 1989-12-30T10:52:18.45 10.0 undecidable manual SG 313 0.0555 -0.48 0.6
--.BNI.Z. 1989-12-30T10:52:17.16 10.0 positive manual PG 313 0.0555 -0.19 3.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download