Earthquake with magnitude of Md 2.0 on date 03-02-1991 and time 04:20:18 (Italy) in region Confine Italia Francia (FRANCIA)

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

  • 03-02-1991 03:20:18 (UTC)
  • 03-02-1991 04:20:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.76, 6.85 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
Sauze di Cesana TO 20 244 244

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km NW of Cuneo (56081 inhabitants)
71 Km W of Moncalieri (57294 inhabitants)
74 Km W 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
Rev 1000 Md 2.0
M 2.3
1991-02-03
03:20:18
44.76 6.85 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 135339
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-02-03 03:20:18 ± 0.164
Latitude 44.76 ± 0.01
Longitude 6.85 ± 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 135339

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) 2450.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
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) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.02987
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 135339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:06:10

M:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 135339
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
--.BGF.Z. 1991-02-03T03:21:11.10 10.0 undecidable manual PN 304 0.0299 0.56 0.6
--.LMR.Z. 1991-02-03T03:21:06.30 10.0 undecidable manual SN! 189 0.013 2.54 0
--.LRG.Z. 1991-02-03T03:21:03.80 10.0 undecidable manual SN! 195 0.0121 2.3 0
--.FRF.Z. 1991-02-03T03:20:59.80 10.0 undecidable manual SN 186 0.0108 1.71 0
--.SBF.Z. 1991-02-03T03:20:55.20 10.0 undecidable manual SG! 154 0.0089 2.65 0
--.LMR.Z. 1991-02-03T03:20:45.50 10.0 undecidable manual PN 189 0.013 0.72 0.9
--.LPG.Z. 1991-02-03T03:20:44.10 10.0 undecidable manual SG 354 0.0066 -0.41 0.7
--.LPL.Z. 1991-02-03T03:20:44.80 10.0 undecidable manual SG 353 0.0068 -0.35 0.7
--.LSD.Z. 1991-02-03T03:20:43.57 10.0 undecidable manual SG 16 0.0065 -0.58 0.6
--.LRG.Z. 1991-02-03T03:20:43.40 10.0 undecidable manual PN 195 0.0121 -0.08 1.6
--.CDR.Z. 1991-02-03T03:20:42.30 10.0 undecidable manual PN 215 0.012 -0.94 0.7
--.ENR.Z. 1991-02-03T03:20:42.38 10.0 undecidable manual SG 142 0.006 0.07 0.8
--.FRF.Z. 1991-02-03T03:20:41.20 10.0 undecidable manual PN 186 0.0108 -0.31 1.6
--.STV.Z. 1991-02-03T03:20:41.10 10.0 undecidable manual SG 145 0.0055 0.56 0.6
--.SBF.Z. 1991-02-03T03:20:37.40 10.0 undecidable manual PG 154 0.0089 -0.91 0.9
--.RSP.Z. 1991-02-03T03:20:37.41 10.0 undecidable manual SG 36 0.0043 1.09 0.3
--.LPG.Z. 1991-02-03T03:20:33.20 10.0 undecidable manual PG 354 0.0066 -0.47 1.7
--.LPL.Z. 1991-02-03T03:20:33.70 10.0 undecidable manual PG 353 0.0068 -0.34 1.8
--.ENR.Z. 1991-02-03T03:20:32.11 10.0 undecidable manual PG 142 0.006 -0.29 1.9
--.LSD.Z. 1991-02-03T03:20:32.84 10.0 undecidable manual PG 16 0.0065 -0.62 1.4
--.BNI.Z. 1991-02-03T03:20:31.50 10.0 undecidable manual SG 337 0.0028 0.6 0.6
--.PZZ.Z. 1991-02-03T03:20:31.61 10.0 undecidable manual SG 145 0.0028 0.83 0.4
--.STV.Z. 1991-02-03T03:20:31.60 10.0 undecidable manual PG 145 0.0055 -0.27 1.9
--.RSP.Z. 1991-02-03T03:20:29.73 10.0 undecidable manual PG 36 0.0043 0.79 1.1
--.BNI.Z. 1991-02-03T03:20:27.50 10.0 undecidable manual PG 337 0.0028 1.69 0.1
--.PZZ.Z. 1991-02-03T03:20:25.73 10.0 undecidable manual PG 145 0.0028 -0.01 2
--.RRL.Z. 1991-02-03T03:20:25.73 10.0 undecidable manual SG 343 0.0015 -0.37 0.7
--.RRL.Z. 1991-02-03T03:20:22.25 10.0 undecidable manual PG 343 0.0015 -0.79 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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