Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 25-09-1989 and time 08:31:53 (Italy) in region Confine Italia Francia (FRANCIA)

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

  • 25-09-1989 07:31:53 (UTC)
  • 25-09-1989 08:31:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6030, 6.9300 at 17 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
Bellino CN 7 109 109
Pontechianale CN 8 179 288
Casteldelfino CN 11 157 445
Elva CN 15 97 542
Acceglio CN 15 162 704
Prazzo CN 17 170 874
Stroppo CN 19 103 977

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km W of Cuneo (56081 inhabitants)
74 Km SW of Moncalieri (57294 inhabitants)
79 Km SW of Torino (890529 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 2.0
M 2.3 		1989-09-25
07:31:53		 44.603 6.93 17 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 100779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-25 07:31:53 ± 0.123
Latitude 44.6030 ± 0.0076
Longitude 6.9300 ± 0.0176
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 100779

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) 1631.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01166
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 100779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:34:01

M:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 100779
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(km) Takeoff_angle Residual Weight
--.LMR.Z. 1989-09-25T07:32:34.00 10.0 undecidable manual SN 193 1.2987 -0.08 0.6
--.LRG.Z. 1989-09-25T07:32:32.60 10.0 undecidable manual SN 199 1.2099 0.55 0.3
--.FIN.Z. 1989-09-25T07:32:26.40 10.0 undecidable manual SN! 113 0.9879 -0.68 0
--.IMI.Z. 1989-09-25T07:32:25.12 10.0 undecidable manual SN 134 0.9657 -1.18 0
--.LPG.Z. 1989-09-25T07:32:24.40 10.0 undecidable manual SN 352 0.8991 -0.16 0.7
--.LSD.Z. 1989-09-25T07:32:23.37 10.0 undecidable manual SN 10 0.8658 -0.38 0.5
--.SBF.Z. 1989-09-25T07:32:22.00 10.0 undecidable manual SG 153 0.8214 -0.37 0.6
--.ROB.Z. 1989-09-25T07:32:19.99 10.0 undecidable manual SG 113 0.7326 0.39 0.6
--.LMR.Z. 1989-09-25T07:32:17.60 10.0 undecidable manual PN 193 1.2987 0.48 0.9
--.LRG.Z. 1989-09-25T07:32:16.40 10.0 undecidable manual PN 199 1.2099 0.46 0.9
--.FIN.Z. 1989-09-25T07:32:13.12 10.0 undecidable manual PN 113 0.9879 0.25 1.5
--.FRF.Z. 1989-09-25T07:32:13.00 10.0 undecidable manual PN 191 1.0545 -0.79 0.4
--.IMI.Z. 1989-09-25T07:32:12.71 10.0 undecidable manual PN 134 0.9657 0.09 1.8
--.LPL.Z. 1989-09-25T07:32:12.20 10.0 undecidable manual PN 351 0.9213 0.29 1.5
--.LSD.Z. 1989-09-25T07:32:11.58 10.0 undecidable manual PN 10 0.8658 0.43 1.2
--.LPG.Z. 1989-09-25T07:32:11.60 10.0 undecidable manual PN 352 0.8991 -0.03 1.9
--.ENR.Z. 1989-09-25T07:32:11.78 10.0 undecidable manual SG 136 0.5106 -0.7 0.2
--.STV.Z. 1989-09-25T07:32:10.14 10.0 undecidable manual SG 140 0.444 -0.43 0.5
--.BNI.Z. 1989-09-25T07:32:10.54 10.0 undecidable manual SG 338 0.4773 -1.01 0.1
--.SBF.Z. 1989-09-25T07:32:10.40 10.0 undecidable manual PG 153 0.8214 0.04 2
--.ROB.Z. 1989-09-25T07:32:08.91 10.0 undecidable manual PG 113 0.7326 0.15 2
--.RRL.Z. 1989-09-25T07:32:06.66 10.0 undecidable manual SG 342 0.333 -0.21 0.8
--.ENR.Z. 1989-09-25T07:32:04.90 10.0 undecidable manual PG 136 0.5106 -0.56 1
--.DOI.Z. 1989-09-25T07:32:04.00 10.0 undecidable manual SG 113 0.2442 -0.19 1.2
--.BNI.Z. 1989-09-25T07:32:03.81 10.0 undecidable manual PG 338 0.4773 -0.3 1.7
--.STV.Z. 1989-09-25T07:32:03.17 10.0 undecidable manual PG 140 0.444 -0.37 1.5
--.PZZ.Z. 1989-09-25T07:32:02.45 10.0 undecidable manual SG 128 0.1554 0.71 0.2
--.RRL.Z. 1989-09-25T07:32:01.53 10.0 undecidable manual PG 342 0.333 0.12 2
--.DOI.Z. 1989-09-25T07:32:00.50 10.0 undecidable manual PG 113 0.2442 0.64 0.8
--.PZZ.Z. 1989-09-25T07:31:58.76 10.0 undecidable manual PG 128 0.1554 0.32 1.6
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