Earthquake with magnitude of Md 4.1 on date 11-02-1990 and time 07:00:36 (UTC) in region 3 km NE Volvera (TO)

A magnitude Md 4.1 earthquake occured in region: 3 km NE Volvera (TO), on

  • 11-02-1990 07:00:36 (UTC)
  • 11-02-1990 08:00:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.97, 7.55 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Volvera TO 3 8840 8840
Orbassano TO 4 23188 32028
Candiolo TO 4 5669 37697
None TO 5 8005 45702
Beinasco TO 6 18159 63861
Piobesi Torinese TO 7 3763 67624
Piossasco TO 7 18589 86213
Rivalta di Torino TO 7 19887 106100
Vinovo TO 7 14887 120987
Airasca TO 8 3794 124781
Nichelino TO 8 48123 172904
Bruino TO 8 8639 181543
Castagnole Piemonte TO 8 2245 183788
La Loggia TO 10 8874 192662
Sangano TO 10 3707 196369
Scalenghe TO 10 3339 199708
Grugliasco TO 10 37966 237674
Villarbasse TO 10 3509 241183
Rivoli TO 11 48791 289974
Moncalieri TO 11 57294 347268
Piscina TO 11 3388 350656
Collegno TO 12 49905 400561
Virle Piemonte TO 12 1206 401767
Carignano TO 12 9261 411028
Osasio TO 12 936 411964
Trana TO 13 3877 415841
Cercenasco TO 13 1803 417644
Rosta TO 13 4903 422547
Reano TO 13 1818 424365
Alpignano TO 14 17008 441373
Cumiana TO 14 7826 449199
Buttigliera Alta TO 14 6419 455618
Pianezza TO 14 15152 470770
Vigone TO 15 5182 475952
Trofarello TO 15 11010 486962
Torino TO 15 890529 1377491
Buriasco TO 15 1410 1378901
Caselette TO 16 3060 1381961
Pancalieri TO 16 2038 1383999
Lombriasco TO 16 1050 1385049
Frossasco TO 16 2864 1387913
Villastellone TO 16 4779 1392692
Pecetto Torinese TO 17 3995 1396687
Avigliana TO 17 12516 1409203
Giaveno TO 17 16455 1425658
Cantalupa TO 17 2553 1428211
Macello TO 18 1229 1429440
Santena TO 18 10830 1440270
Roletto TO 18 2009 1442279
Casalgrasso CN 18 1480 1443759
Cambiano TO 18 6107 1449866
Druento TO 18 8622 1458488
Faule CN 19 486 1458974
San Gillio TO 19 3174 1462148
Venaria Reale TO 19 34193 1496341
Polonghera CN 19 1160 1497501
Pino Torinese TO 19 8379 1505880
Carmagnola TO 19 29079 1534959
Pinerolo TO 20 35808 1570767
San Pietro Val Lemina TO 20 1448 1572215

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km W of Moncalieri (57294 inhabitants)
15 Km SW of Torino (890529 inhabitants)
52 Km W of Asti (76202 inhabitants)
64 Km N of Cuneo (56081 inhabitants)
84 Km W of Alessandria (93943 inhabitants)
99 Km SW of Novara (104380 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
ML-VAX 3.9
1990-02-11
07:00:36
44.97 7.55 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 110059
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-02-11 07:00:36 ± 0.562
Latitude 44.97 ± 0.01
Longitude 7.55 ± 0.02
Depth (km) 9 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 110059

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) 2010.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.05035
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

Md:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations 9
Type of magnitude Md
Reference to an origin 110059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:42:20

ML:3.9

Field Value
Value 3.9
Uncertainty
Num. used stations 11
Type of magnitude ML
Reference to an origin 110059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FVI.Z. 1990-02-11T07:02:23.00 10.0 undecidable manual SN 63 0.0359 0.44 0.4
--.SDI.Z. 1990-02-11T07:02:00.50 10.0 undecidable manual PN 123 0.0503 0.52 0.7
--.RDP.Z. 1990-02-11T07:01:53.27 10.0 undecidable manual PN! 128 0.0444 2.31 0
--.AQU.Z. 1990-02-11T07:01:52.10 10.0 undecidable manual PN 119 0.0448 0.68 0.7
--.RMP.Z. 1990-02-11T07:01:52.20 10.0 undecidable manual PN 128 0.044 1.84 0.1
--.ALP.Z. 1990-02-11T07:01:50.56 10.0 undecidable manual PN 114 0.0437 0.76 0.6
--.MNS.Z. 1990-02-11T07:01:47.50 10.0 undecidable manual PN 122 0.0406 1.86 0.1
--.BDI.Z. 1990-02-11T07:01:45.00 10.0 undecidable manual SN 111 0.0211 1.31 0.3
--.RM8.Z. 1990-02-11T07:01:44.90 10.0 undecidable manual PN 114 0.0409 -0.59 0.7
--.AOI.Z. 1990-02-11T07:01:44.11 10.0 undecidable manual PN 105 0.041 -1.59 0.2
--.RBL.Z. 1990-02-11T07:01:44.00 10.0 undecidable manual PN 68 0.04 -0.19 0.9
--.TRI.Z. 1990-02-11T07:01:42.65 10.0 undecidable manual PN 77 0.0398 -1.23 0.3
--.ARV.Z. 1990-02-11T07:01:41.31 10.0 undecidable manual PN 108 0.0372 1.44 0.3
--.CIO.Z. 1990-02-11T07:01:41.92 10.0 undecidable manual PN 111 0.0395 -1.48 0.4
--.ASS.Z. 1990-02-11T07:01:40.52 10.0 undecidable manual PN 115 0.0372 0.64 0.8
--.FVI.Z. 1990-02-11T07:01:38.53 10.0 undecidable manual PN 63 0.0359 0.64 0.8
--.RSM.Z. 1990-02-11T07:01:34.27 10.0 undecidable manual PN 104 0.0328 1.05 0.5
--.MAO.Z. 1990-02-11T07:01:33.19 10.0 undecidable manual PN 133 0.0328 -0.01 1
--.CRE.Z. 1990-02-11T07:01:31.00 10.0 undecidable manual PN 111 0.0308 0.84 0.7
--.SFI.Z. 1990-02-11T07:01:28.70 10.0 undecidable manual PN 107 0.0292 0.99 0.6
--.CTI.Z. 1990-02-11T07:01:24.80 10.0 undecidable manual PN 67 0.0275 -0.41 1
--.FIR.Z. 1990-02-11T07:01:22.00 10.0 undecidable manual PN 112 0.0261 -1.01 0.6
--.MME.Z. 1990-02-11T07:01:18.00 10.0 undecidable manual PN! 107 0.0213 2.29 0
--.PII.Z. 1990-02-11T07:01:17.23 10.0 undecidable manual PN 119 0.0222 0.25 1.2
--.BDI.Z. 1990-02-11T07:01:16.64 10.0 undecidable manual PN 111 0.0211 1.2 0.6
--.SAL.Z. 1990-02-11T07:01:12.78 10.0 undecidable manual PN 71 0.0197 -0.37 1.1
--.MDI.Z. 1990-02-11T07:01:05.58 10.0 undecidable manual PN 61 0.0154 -1.12 0.5
--.BOB.Z. 1990-02-11T07:01:03.50 10.0 undecidable manual PN 97 0.0122 1.7 0.2
--.ORO.Z. 1990-02-11T07:01:00.94 10.0 undecidable manual SG 24 0.0065 -1.25 0.1
--.VAI.Z. 1990-02-11T07:00:59.30 10.0 negative manual PN 43 0.0111 -0.82 1.5
--.BNI.Z. 1990-02-11T07:00:58.50 10.0 undecidable manual SG 277 0.0056 -0.46 0.3
--.IMI.Z. 1990-02-11T07:00:57.43 10.0 negative manual PN 166 0.0098 -0.66 1.7
--.FIN.Z. 1990-02-11T07:00:54.78 10.0 positive manual PG 148 0.008 0.04 2.5
--.PCP.Z. 1990-02-11T07:00:53.84 10.0 negative manual PG 120 0.0074 0.38 2.2
--.CKI.Z. 1990-02-11T07:00:52.53 10.0 positive manual PG 136 0.0068 0.38 2.2
--.ROB.Z. 1990-02-11T07:00:51.52 10.0 positive manual PG 160 0.0063 0.27 2.4
--.ENR.Z. 1990-02-11T07:00:51.10 10.0 negative manual PG 186 0.0067 -0.94 1.4
--.ORX.Z. 1990-02-11T07:00:50.91 10.0 negative manual PG 24 0.0065 -0.66 2
--.STV.Z. 1990-02-11T07:00:50.85 10.0 negative manual PG 192 0.0066 -0.94 1.4
--.ORO.Z. 1990-02-11T07:00:50.93 10.0 positive manual PG 24 0.0065 -0.55 2.1
--.BNI.Z. 1990-02-11T07:00:50.23 10.0 negative manual PG 277 0.0056 0.61 2
--.LSD.Z. 1990-02-11T07:00:49.70 10.0 positive manual PG 330 0.005 0.6 2
--.RRL.Z. 1990-02-11T07:00:48.72 10.0 negative manual PG 264 0.0049 0.51 2.2
--.PZZ.Z. 1990-02-11T07:00:47.98 10.0 negative manual PG 214 0.005 -0.62 1.9
--.DOI.Z. 1990-02-11T07:00:47.41 10.0 negative manual PG 204 0.0046 -0.28 2.3
--.RSP.Z. 1990-02-11T07:00:44.30 10.0 positive manual PG 310 0.0024 1.12 0.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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