Earthquake with magnitude of Md 2.4 on date 17-12-1989 and time 23:07:44 (Italy) in region 1 km W Perloz (AO)

A magnitude Md 2.4 earthquake occured in region: 1 km W Perloz (AO), on

  • 17-12-1989 22:07:44 (UTC)
  • 17-12-1989 23:07:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.6130, 7.8010 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
Perloz AO 1 477 477
Pont-Saint-Martin AO 1 3840 4317
Donnas AO 3 2563 6880
Carema TO 3 774 7654
Bard AO 4 119 7773
Lillianes AO 4 462 8235
Hône AO 5 1166 9401
Quincinetto TO 6 1031 10432
Fontainemore AO 6 440 10872
Arnad AO 7 1273 12145
Settimo Vittone TO 8 1560 13705
Tavagnasco TO 8 791 14496
Pontboset AO 9 185 14681
Issime AO 9 423 15104
Nomaglio TO 10 287 15391
Quassolo TO 10 354 15745
Issogne AO 10 1400 17145
Verrès AO 11 2696 19841
Andrate TO 11 505 20346
Challand-Saint-Victor AO 11 564 20910
Borgofranco d'Ivrea TO 12 3732 24642
Traversella TO 12 343 24985
Donato BI 13 693 25678
Challand-Saint-Anselme AO 13 751 26429
Gaby AO 13 468 26897
Vico Canavese TO 13 849 27746
Brosso TO 13 420 28166
Meugliano TO 14 80 28246
Champdepraz AO 14 712 28958
Trausella TO 14 119 29077
Champorcher AO 14 388 29465
Montalto Dora TO 14 3406 32871
Netro BI 14 1009 33880
Montjovet AO 14 1801 35681
Sordevolo BI 14 1373 37054
Emarèse AO 15 226 37280
Piedicavallo BI 15 193 37473
Chiaverano TO 15 2095 39568
Lessolo TO 15 1938 41506
Graglia BI 15 1559 43065
Rosazza BI 16 108 43173
Muzzano BI 16 609 43782
Pollone BI 16 2109 45891
Fiorano Canavese TO 16 822 46713
Rueglio TO 16 757 47470
Campiglia Cervo BI 16 505 47975
Sala Biellese BI 17 587 48562
Occhieppo Superiore BI 17 2776 51338
Cascinette d'Ivrea TO 17 1485 52823
Alice Superiore TO 17 700 53523
Brusson AO 17 897 54420
Ivrea TO 17 23606 78026
Banchette TO 17 3231 81257
Camburzano BI 18 1167 82424
Torrazzo BI 18 213 82637
Burolo TO 18 1180 83817
Salerano Canavese TO 18 505 84322
Pecco TO 18 223 84545
Samone TO 18 1600 86145
Gressoney-Saint-Jean AO 19 807 86952
Occhieppo Inferiore BI 19 4005 90957
Pralungo BI 19 2510 93467
Lugnacco TO 19 360 93827
Issiglio TO 19 392 94219
Loranzè TO 19 1173 95392
Miagliano BI 19 624 96016
Sagliano Micca BI 19 1637 97653
Bollengo TO 19 2137 99790
Mongrando BI 19 3883 103673
Vistrorio TO 19 534 104207
Saint-Vincent AO 19 4660 108867
Tavigliano BI 20 942 109809
Andorno Micca BI 20 3274 113083
Tollegno BI 20 2527 115610
Colleretto Giacosa TO 20 582 116192

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km N of Torino (890529 inhabitants)
67 Km W of Novara (104380 inhabitants)
69 Km N of Moncalieri (57294 inhabitants)
77 Km W of Gallarate (53343 inhabitants)
82 Km W of Busto Arsizio (83106 inhabitants)
83 Km W of Varese (80799 inhabitants)
85 Km NW of Asti (76202 inhabitants)
87 Km W of Legnano (60262 inhabitants)
89 Km W of Vigevano (63310 inhabitants)
97 Km W of Rho (50434 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 2.4 1989-12-17
22:07:44
45.613 7.801 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 106179
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-12-17 22:07:44 ± 0.291
Latitude 45.6130 ± 0.0457
Longitude 7.8010 ± 0.0233
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 106179

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) 5393.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00866
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 106179
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:38:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BNI.Z. 1989-12-17T22:08:17.78 10.0 undecidable manual SG 235 0.9657 -1.11 0.1
--.LPG.Z. 1989-12-17T22:08:10.20 10.0 undecidable manual SG 261 0.7326 -1.49 0
--.LPL.Z. 1989-12-17T22:08:10.60 10.0 undecidable manual SG 263 0.7437 -1.43 0
--.RSP.Z. 1989-12-17T22:08:06.30 10.0 undecidable manual SG 219 0.5883 -0.75 0.4
--.BNI.Z. 1989-12-17T22:08:05.15 10.0 negative manual PG 235 0.9657 0.6 1.7
--.LSD.Z. 1989-12-17T22:08:02.90 10.0 undecidable manual SG 251 0.4773 -0.27 0.7
--.LPL.Z. 1989-12-17T22:08:01.00 10.0 undecidable manual PG 263 0.7437 0.41 1.3
--.LPG.Z. 1989-12-17T22:08:00.70 10.0 undecidable manual PG 261 0.7326 0.3 1.4
--.RSP.Z. 1989-12-17T22:07:57.80 10.0 undecidable manual PG 219 0.5883 0.09 1.7
--.LSD.Z. 1989-12-17T22:07:56.10 10.0 undecidable manual PG 251 0.4773 0.63 1.1
--.ORX.Z. 1989-12-17T22:07:49.20 10.0 undecidable manual SG 81 0.1221 -0.95 0.2
--.ORO.Z. 1989-12-17T22:07:49.50 10.0 undecidable manual SG 83 0.1221 -0.63 0.5
--.ORO.Z. 1989-12-17T22:07:48.00 10.0 negative manual PG 83 0.1221 0.06 3.7
--.ORX.Z. 1989-12-17T22:07:47.60 10.0 undecidable manual PG 81 0.1221 -0.36 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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