Earthquake with magnitude of Md 4.1 on date 11-02-1991 and time 16:43:44 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude Md 4.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 11-02-1991 15:43:44 (UTC)
  • 11-02-1991 16:43:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.88, 6.7 at 5 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
Claviere TO 8 214 214
Cesana Torinese TO 11 967 1181
Sauze di Cesana TO 15 244 1425
Sestriere TO 17 929 2354
Oulx TO 20 3307 5661

Municipalities with at least 50000 inhabitants

An earthquake occurred to
79 Km W of Moncalieri (57294 inhabitants)
80 Km W of Torino (890529 inhabitants)
87 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
Rev 1000 Md 4.1
M 4.7
1991-02-11
15:43:44
44.88 6.7 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 135699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-02-11 15:43:44 ± 0.101
Latitude 44.88 ± 0.01
Longitude 6.70 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 135699

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) 1330.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 37
Number of associated phases, regardless of their use for origin computation 132
Number of defining phases 132
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.07034
Number of stations at which the event was observed 108
Number of stations from which data was used for origin computation 108
Magnitudes information

Md:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 135699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:06:30

M:4.7

Field Value
Value 4.7
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 135699
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 Takeoff_angle Residual Weight
--.UCC.Z. 1991-02-11T15:46:26.00 10.0 undecidable manual SN! 346 0.055 4.25 0
--.VBY.Z. 1991-02-11T15:46:21.79 10.0 undecidable manual SN 81 0.0545 1.39 0.2
--.LJU.Z. 1991-02-11T15:46:12.60 10.0 undecidable manual SN! 75 0.0504 2.89 0
--.CEY.Z. 1991-02-11T15:46:07.50 10.0 undecidable manual SN 78 0.0495 0.41 0.5
--.VOY.Z. 1991-02-11T15:46:00.40 10.0 undecidable manual SN 74 0.0465 1.05 0.3
--.TRI.Z. 1991-02-11T15:45:56.50 10.0 undecidable manual SN 78 0.0452 0.41 0.5
--.FVI.Z. 1991-02-11T15:45:45.50 10.0 undecidable manual SN 65 0.0411 0.38 0.6
--.CLL.Z. 1991-02-11T15:45:39.00 10.0 undecidable manual PN! 30 0.069 2.26 0
--.ZST.Z. 1991-02-11T15:45:38.00 10.0 undecidable manual PN 61 0.0703 -0.74 0.8
--.PRU.Z. 1991-02-11T15:45:32.70 10.0 undecidable manual PN 43 0.0661 0.36 1.1
--.MAO.Z. 1991-02-11T15:45:32.74 10.0 undecidable manual SN 125 0.0365 -0.11 0.7
--.VKA.Z. 1991-02-11T15:45:32.90 10.0 positive manual PN 59 0.0668 -1.13 1
--.CRE.Z. 1991-02-11T15:45:31.00 10.0 undecidable manual SN 106 0.0357 0.3 0.6
--.MOX.Z. 1991-02-11T15:45:24.00 10.0 undecidable manual PN 28 0.0597 1.51 0.6
--.CTI.Z. 1991-02-11T15:45:24.98 10.0 undecidable manual SN 69 0.0329 1.56 0.2
--.KHC.Z. 1991-02-11T15:45:18.00 10.0 undecidable manual PN 45 0.0569 -0.17 2.6
--.GRR.Z. 1991-02-11T15:45:17.41 10.0 undecidable manual PN 306 0.0563 0.2 1.3
--.FLN.Z. 1991-02-11T15:45:17.80 10.0 undecidable manual PN 311 0.0563 0.6 1
--.UCC.Z. 1991-02-11T15:45:16.80 10.0 undecidable manual PN 346 0.055 1.5 0.3
--.FIR.Z. 1991-02-11T15:45:16.00 10.0 undecidable manual SN! 107 0.0309 -2.21 0
--.SDI.Z. 1991-02-11T15:45:15.20 10.0 undecidable manual PN 119 0.0546 0.35 1.2
--.EBR.Z. 1991-02-11T15:45:15.00 10.0 undecidable manual PN 230 0.0548 -0.02 1.3
--.BNS.Z. 1991-02-11T15:45:14.30 10.0 positive manual PN 2 0.0547 -0.59 2.1
--.KMR.Z. 1991-02-11T15:45:14.00 10.0 undecidable manual PN 55 0.0542 0.02 2.7
--.VBY.Z. 1991-02-11T15:45:12.91 10.0 negative manual PN 81 0.0545 -1.61 0.5
--.AZI.Z. 1991-02-11T15:45:09.50 10.0 undecidable manual PN 118 0.0511 0.13 1.4
--.PII.Z. 1991-02-11T15:45:08.17 10.0 undecidable manual SN 111 0.0267 1.09 0.3
--.MME.Z. 1991-02-11T15:45:07.50 10.0 undecidable manual SN 102 0.0264 1.37 0.2
--.AQU.Z. 1991-02-11T15:45:07.42 10.0 undecidable manual PN 115 0.0492 0.97 0.7
--.LJU.Z. 1991-02-11T15:45:07.00 10.0 undecidable manual PN 75 0.0504 -1.35 0.4
--.CP9.Z. 1991-02-11T15:45:07.29 10.0 undecidable manual PN 121 0.0491 1.03 0.7
--.TNS.Z. 1991-02-11T15:45:05.91 10.0 undecidable manual PN 11 0.0491 -0.48 1.2
--.CEY.Z. 1991-02-11T15:45:05.00 10.0 undecidable manual PN 78 0.0495 -1.84 0.2
--.DOU.Z. 1991-02-11T15:45:05.80 10.0 negative manual PN 345 0.0486 0.33 2.7
--.RDP.Z. 1991-02-11T15:45:04.50 10.0 undecidable manual PN 123 0.0483 -0.68 1.1
--.BDI.Z. 1991-02-11T15:45:04.50 10.0 undecidable manual SN 105 0.0261 -0.82 0.5
--.RMP.Z. 1991-02-11T15:45:04.00 10.0 undecidable manual PN 123 0.048 -0.62 1.2
--.BHG.Z. 1991-02-11T15:45:03.30 10.0 negative manual PN 54 0.0461 1.61 0.6
--.PGF.Z. 1991-02-11T15:45:02.40 10.0 undecidable manual SN! 143 0.0257 -2.13 0
--.KBA.Z. 1991-02-11T15:45:01.59 10.0 positive manual PN 62 0.046 0.08 3
--.MFF.Z. 1991-02-11T15:45:01.59 10.0 undecidable manual PN 292 0.0456 0.63 1.1
--.MNS.Z. 1991-02-11T15:45:01.35 10.0 undecidable manual PN 118 0.0449 1.39 0.4
--.TRI.Z. 1991-02-11T15:45:00.47 10.0 undecidable manual PN 78 0.0452 -0.02 1.5
--.VOY.Z. 1991-02-11T15:44:59.91 10.0 negative manual PN! 74 0.0465 -2.45 0
--.EPF.Z. 1991-02-11T15:44:58.80 10.0 undecidable manual PN 250 0.0444 -0.27 1.5
--.ASS.Z. 1991-02-11T15:44:56.38 10.0 undecidable manual PN 111 0.0418 1.13 0.6
--.ARV.Z. 1991-02-11T15:44:56.11 10.0 undecidable manual PN 105 0.0421 0.43 1.4
--.FUR.Z. 1991-02-11T15:44:55.80 10.0 positive manual PN! 42 0.0409 2.03 0
--.FVI.Z. 1991-02-11T15:44:54.58 10.0 negative manual PN 65 0.0411 0.43 2.8
--.RSM.Z. 1991-02-11T15:44:50.58 10.0 undecidable manual PN 101 0.0379 1.32 0.5
--.MDI.Z. 1991-02-11T15:44:50.00 10.0 undecidable manual SN 66 0.0206 -1.02 0.4
--.VVI.Z. 1991-02-11T15:44:50.53 10.0 undecidable manual PN! 72 0.0375 1.98 0
--.LFF.Z. 1991-02-11T15:44:50.00 10.0 undecidable manual PN 272 0.0379 0.74 1.1
--.STU.Z. 1991-02-11T15:44:49.00 10.0 undecidable manual PN 22 0.0381 -0.63 1.3
--.MAO.Z. 1991-02-11T15:44:47.57 10.0 undecidable manual PN 125 0.0365 0.5 1.4
--.CRE.Z. 1991-02-11T15:44:46.87 10.0 undecidable manual PN 106 0.0357 1.05 0.8
--.GWF.Z. 1991-02-11T15:44:46.95 10.0 undecidable manual PN 8 0.0372 -1.24 0.6
--.LPO.Z. 1991-02-11T15:44:45.41 10.0 undecidable manual PN 269 0.0352 0.34 1.5
--.SFI.Z. 1991-02-11T15:44:45.00 10.0 undecidable manual PN 103 0.0342 1.39 0.5
--.LSF.Z. 1991-02-11T15:44:44.59 10.0 undecidable manual PN 292 0.0347 0.19 1.7
--.PGD.Z. 1991-02-11T15:44:43.38 10.0 undecidable manual PN 103 0.0335 0.84 1.1
--.BOB.Z. 1991-02-11T15:44:43.00 10.0 undecidable manual SN 92 0.0176 0.18 0.7
--.SR3.Z. 1991-02-11T15:44:43.00 10.0 undecidable manual PN 103 0.0342 -0.58 1.5
--.CTI.Z. 1991-02-11T15:44:42.40 10.0 undecidable manual PN 69 0.0329 0.77 1.2
--.RJF.Z. 1991-02-11T15:44:42.50 10.0 undecidable manual PN 278 0.033 0.65 1.3
--.CDF.Z. 1991-02-11T15:44:39.59 10.0 undecidable manual PN 6 0.0319 -0.48 1.5
--.WLS.Z. 1991-02-11T15:44:39.36 10.0 undecidable manual PN 7 0.032 -0.81 1.2
--.TCF.Z. 1991-02-11T15:44:38.80 10.0 undecidable manual PN 295 0.0309 0.26 1.7
--.VAI.Z. 1991-02-11T15:44:38.50 10.0 undecidable manual SN 55 0.0158 0.37 0.7
--.FIR.Z. 1991-02-11T15:44:37.00 10.0 undecidable manual PN 107 0.0309 -1.62 0.4
--.CAF.Z. 1991-02-11T15:44:36.80 10.0 undecidable manual PN 272 0.0295 0.43 1.6
--.ECH.Z. 1991-02-11T15:44:36.58 10.0 undecidable manual PN 5 0.03 -0.7 1.3
--.MAF.Z. 1991-02-11T15:44:35.41 10.0 undecidable manual PN 296 0.0287 0.34 1.7
--.BGF.Z. 1991-02-11T15:44:35.00 10.0 undecidable manual PN 303 0.0284 0.2 1.8
--.FEL.Z. 1991-02-11T15:44:34.13 10.0 undecidable manual PN 16 0.0281 -0.13 1.8
--.SSF.Z. 1991-02-11T15:44:34.00 10.0 undecidable manual PN 315 0.0279 0 1.9
--.SAX.Z. 1991-02-11T15:44:34.41 10.0 undecidable manual PN! 36 0.0269 1.94 0
--.HAU.Z. 1991-02-11T15:44:34.00 10.0 undecidable manual PN 355 0.0281 -0.31 1.7
--.LOR.Z. 1991-02-11T15:44:33.59 10.0 undecidable manual PN 321 0.0278 -0.19 1.8
--.MME.Z. 1991-02-11T15:44:33.70 10.0 undecidable manual PN 102 0.0264 1.43 0.5
--.SLE.Z. 1991-02-11T15:44:33.41 10.0 undecidable manual PN 22 0.0282 -1 0.9
--.AVF.Z. 1991-02-11T15:44:33.00 10.0 undecidable manual PN 310 0.027 0.34 1.7
--.OSS.Z. 1991-02-11T15:44:32.70 10.0 undecidable manual PN 51 0.027 0.11 1.9
--.PII.Z. 1991-02-11T15:44:32.60 10.0 undecidable manual PN 111 0.0267 0.41 1.6
--.MOF.Z. 1991-02-11T15:44:31.59 10.0 undecidable manual PN 5 0.0268 -0.7 1.3
--.BSF.Z. 1991-02-11T15:44:31.20 10.0 undecidable manual PN 1 0.0265 -0.62 1.4
--.BDI.Z. 1991-02-11T15:44:31.60 10.0 negative manual PN 105 0.0261 0.43 3.2
--.SAL.Z. 1991-02-11T15:44:30.20 10.0 undecidable manual PN 73 0.0251 0.54 1.5
--.ZLA.Z. 1991-02-11T15:44:30.91 10.0 undecidable manual PN 23 0.0256 0.52 1.6
--.PGF.Z. 1991-02-11T15:44:29.00 10.0 undecidable manual PN 143 0.0257 -1.71 0.4
--.NO1.Z. 1991-02-11T15:44:29.00 10.0 undecidable manual SN! 67 0.0131 -2.11 0
--.LBF.Z. 1991-02-11T15:44:29.80 10.0 undecidable manual PN 319 0.0254 -0.34 1.7
--.SMF.Z. 1991-02-11T15:44:28.00 10.0 undecidable manual PN 312 0.0239 0.16 1.8
--.BBS.Z. 1991-02-11T15:44:27.34 10.0 undecidable manual PN 12 0.0237 -0.26 1.8
--.CKI.Z. 1991-02-11T15:44:26.00 10.0 undecidable manual SN 111 0.0109 0.7 0.5
--.LLS.Z. 1991-02-11T15:44:26.50 10.0 undecidable manual PN 38 0.0228 0.28 1.8
--.VDL.Z. 1991-02-11T15:44:25.59 10.0 undecidable manual PN 49 0.0226 -0.26 1.8
--.ORO.Z. 1991-02-11T15:44:24.50 10.0 undecidable manual SN 50 0.0105 0.3 0.7
--.MDI.Z. 1991-02-11T15:44:22.67 10.0 undecidable manual PN 66 0.0206 -0.25 1.8
--.BOB.Z. 1991-02-11T15:44:19.50 10.0 undecidable manual PN 92 0.0176 1.32 0.6
--.VAI.Z. 1991-02-11T15:44:15.57 10.0 undecidable manual PN 55 0.0158 0.09 1.9
--.LMR.Z. 1991-02-11T15:44:11.70 10.0 undecidable manual PN 185 0.0139 -1.01 1.1
--.MMK.Z. 1991-02-11T15:44:10.20 10.0 positive manual PN 36 0.0132 -1.3 1.2
--.LRG.Z. 1991-02-11T15:44:10.30 10.0 undecidable manual PN 189 0.013 -0.95 1.2
--.NO1.Z. 1991-02-11T15:44:10.00 10.0 undecidable manual PN 67 0.0131 -1.42 0.5
--.CDR.Z. 1991-02-11T15:44:09.20 10.0 undecidable manual PN 209 0.0124 -1.09 1
--.PCP.Z. 1991-02-11T15:44:07.86 10.0 undecidable manual PN! 104 0.0121 -2.13 0
--.DIX.Z. 1991-02-11T15:44:07.90 10.0 negative manual PN! 22 0.0117 -2.07 0
--.FRF.Z. 1991-02-11T15:44:07.80 10.0 undecidable manual PN 181 0.0119 -1.73 0.4
--.CKI.Z. 1991-02-11T15:44:07.11 10.0 undecidable manual PN 111 0.0109 -0.96 1.1
--.ORO.Z. 1991-02-11T15:44:06.20 10.0 undecidable manual PN 50 0.0105 -1.41 0.5
--.DOI.Z. 1991-02-11T15:44:06.00 10.0 undecidable manual SG 134 0.0049 1.12 0.4
--.IMI.Z. 1991-02-11T15:44:06.38 10.0 undecidable manual PN! 138 0.0116 -2.76 0
--.LPG.Z. 1991-02-11T15:44:06.00 10.0 undecidable manual SG! 3 0.0055 -1.12 0
--.EMS.Z. 1991-02-11T15:44:05.70 10.0 negative manual PN! 7 0.0108 -2.09 0
--.FIN.Z. 1991-02-11T15:44:05.92 10.0 undecidable manual PN! 121 0.0114 -2.89 0
--.ORX.Z. 1991-02-11T15:44:04.13 10.0 undecidable manual PN! 50 0.0105 -3.34 0
--.SBF.Z. 1991-02-11T15:44:04.30 10.0 undecidable manual PN! 152 0.0103 -2.83 0
--.AB9.Z. 1991-02-11T15:44:04.22 10.0 negative manual PG 100 0.0088 -0.26 3.6
--.ROB.Z. 1991-02-11T15:44:01.78 10.0 undecidable manual PG! 124 0.0091 -3.3 0
--.ENR.Z. 1991-02-11T15:43:58.00 10.0 undecidable manual PG! 141 0.0074 -3.66 0
--.RSL.Z. 1991-02-11T15:43:58.48 10.0 undecidable manual PG! 356 0.0072 -2.63 0
--.STV.Z. 1991-02-11T15:43:57.50 10.0 undecidable manual PG! 144 0.007 -3.52 0
--.LSD.Z. 1991-02-11T15:43:55.59 10.0 undecidable manual PG! 29 0.0059 -2.79 0
--.LPG.Z. 1991-02-11T15:43:55.20 10.0 undecidable manual PG! 3 0.0055 -2.37 0
--.LPL.Z. 1991-02-11T15:43:55.59 10.0 undecidable manual PG! 2 0.0057 -2.31 0
--.DOI.Z. 1991-02-11T15:43:54.83 10.0 positive manual PG 134 0.0049 -1.45 1.2
--.BNI.Z. 1991-02-11T15:43:52.00 10.0 undecidable manual SG 355 0.0015 0.76 0.6
--.RSP.Z. 1991-02-11T15:43:52.39 10.0 undecidable manual PG! 55 0.0043 -2.65 0
--.PZZ.Z. 1991-02-11T15:43:51.66 10.0 undecidable manual PG! 142 0.0042 -3.34 0
--.BNI.Z. 1991-02-11T15:43:48.67 10.0 negative manual PG 355 0.0015 0.27 3.6
--.RRL.Z. 1991-02-11T15:43:44.98 10.0 undecidable manual PG 59 0.0006 -1.43 0.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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