Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.1 on date 20-09-1994 and time 08:19:14 (Italy) in region 2 km SW Alpette (TO)

A magnitude Md 2.1 earthquake occured in region: 2 km SW Alpette (TO), on

  • 20-09-1994 06:19:14 (UTC)
  • 20-09-1994 08:19:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.3950, 7.5680 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.

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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
Alpette TO 2 261 261
Sparone TO 3 1038 1299
Canischio TO 3 277 1576
Pont-Canavese TO 4 3483 5059
San Colombano Belmonte TO 4 383 5442
Prascorsano TO 5 745 6187
Pratiglione TO 5 535 6722
Forno Canavese TO 6 3446 10168
Frassinetto TO 6 274 10442
Cuorgnè TO 6 9906 20348
Ribordone TO 7 53 20401
Pertusio TO 7 778 21179
Chiesanuova TO 7 205 21384
Valperga TO 8 3166 24550
Ingria TO 8 52 24602
Rivara TO 8 2659 27261
Borgiallo TO 8 569 27830
Locana TO 9 1498 29328
Levone TO 9 442 29770
San Ponso TO 9 267 30037
Colleretto Castelnuovo TO 9 332 30369
Corio TO 9 3277 33646
Rocca Canavese TO 10 1708 35354
Busano TO 10 1687 37041
Cintano TO 10 258 37299
Salassa TO 10 1838 39137
Castelnuovo Nigra TO 11 433 39570
Castellamonte TO 11 9859 49429
Oglianico TO 11 1506 50935
Favria TO 12 5196 56131
Ronco Canavese TO 12 314 56445
Barbania TO 13 1607 58052
Coassolo Torinese TO 13 1547 59599
Vauda Canavese TO 13 1464 61063
Baldissero Canavese TO 14 550 61613
Rivarolo Canavese TO 14 12488 74101
Monastero di Lanzo TO 14 350 74451
Valprato Soana TO 14 108 74559
Balangero TO 14 3156 77715
Ozegna TO 15 1230 78945
Bairo TO 15 790 79735
Front TO 15 1677 81412
Torre Canavese TO 15 598 82010
Grosso TO 15 1018 83028
Lanzo Torinese TO 15 5086 88114
Mathi TO 15 3921 92035
Vidracco TO 16 507 92542
Cantoira TO 16 564 93106
Issiglio TO 16 392 93498
Agliè TO 16 2631 96129
Strambinello TO 16 263 96392
Ceres TO 17 1065 97457
Nole TO 17 6892 104349
Germagnano TO 17 1201 105550
San Carlo Canavese TO 17 4031 109581
Vistrorio TO 17 534 110115
Ciconio TO 17 384 110499
Villanova Canavese TO 17 1186 111685
Rueglio TO 17 757 112442
Cafasse TO 17 3451 115893
Quagliuzzo TO 17 328 116221
Feletto TO 17 2310 118531
Pessinetto TO 17 606 119137
Traves TO 17 518 119655
Mezzenile TO 18 786 120441
Chialamberto TO 18 345 120786
Pecco TO 18 223 121009
Lugnacco TO 18 360 121369
Lusigliè TO 18 559 121928
Parella TO 18 453 122381
Alice Superiore TO 18 700 123081
Ciriè TO 18 18909 141990
Colleretto Giacosa TO 19 582 142572
Trausella TO 19 119 142691
San Giorgio Canavese TO 19 2643 145334
Traversella TO 19 343 145677
San Martino Canavese TO 20 852 146529
Vallo Torinese TO 20 774 147303
Meugliano TO 20 80 147383
Vialfrè TO 20 256 147639
Loranzè TO 20 1173 148812
Rivarossa TO 20 1610 150422
Cuceglio TO 20 997 151419
Fiano TO 20 2695 154114
San Francesco al Campo TO 20 5005 159119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Torino (890529 inhabitants)
45 Km N of Moncalieri (57294 inhabitants)
74 Km NW of Asti (76202 inhabitants)
83 Km W of Novara (104380 inhabitants)
98 Km NW of Alessandria (93943 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 2.1
M 2.8 		1994-09-20
06:19:14		 45.395 7.568 10 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 216649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-09-20 06:19:14 ± 0.209
Latitude 45.3950 ± 0.0114
Longitude 7.5680 ± 0.0177
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 216649

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) 1878.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.03125
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 216649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:24:27

M:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 216649
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(km) Takeoff_angle Residual Weight
--.BGF.Z. 1994-09-20T06:20:48.00 10.0 undecidable manual SN 290 3.4632 0.22 0.5
--.LOR.Z. 1994-09-20T06:20:41.30 10.0 undecidable manual SN 307 3.1635 0.84 0.3
--.BGF.Z. 1994-09-20T06:20:10.60 10.0 undecidable manual PN! 290 3.4632 2.2 0
--.SSF.Z. 1994-09-20T06:20:08.30 10.0 undecidable manual PN! 301 3.2634 2.84 0
--.LOR.Z. 1994-09-20T06:20:07.60 10.0 undecidable manual PN! 307 3.1635 3.43 0
--.AVF.Z. 1994-09-20T06:20:07.60 10.0 undecidable manual PN! 296 3.2301 2.52 0
--.SMF.Z. 1994-09-20T06:20:03.40 10.0 undecidable manual PN! 296 2.8638 3.33 0
--.IMI.Z. 1994-09-20T06:19:58.50 10.0 undecidable manual SN! 170 1.4874 -2.71 0
--.FIN.Z. 1994-09-20T06:19:53.25 10.0 undecidable manual SN 158 1.2654 -2.01 0
--.PCP.Z. 1994-09-20T06:19:51.19 10.0 undecidable manual SN 140 1.0989 0.02 0.9
--.ENR.Z. 1994-09-20T06:19:50.60 10.0 undecidable manual SN! 184 1.1655 -2.88 0
--.ROB.Z. 1994-09-20T06:19:50.78 10.0 undecidable manual SN 168 1.11 -0.76 0.5
--.FRF.Z. 1994-09-20T06:19:50.50 10.0 undecidable manual PN! 199 1.9425 3.12 0
--.STV.Z. 1994-09-20T06:19:50.10 10.0 undecidable manual SN! 188 1.1544 -2.53 0
--.PZZ.Z. 1994-09-20T06:19:45.27 10.0 undecidable manual SG 200 0.9435 -1.69 0.1
--.SBF.Z. 1994-09-20T06:19:43.50 10.0 undecidable manual PN 183 1.5318 1.8 0.1
--.IMI.Z. 1994-09-20T06:19:40.90 10.0 undecidable manual PN 170 1.4874 -0.35 1.8
--.FIN.Z. 1994-09-20T06:19:38.22 10.0 undecidable manual PN 158 1.2654 0.14 2.2
--.BNI.Z. 1994-09-20T06:19:38.50 10.0 undecidable manual SG 241 0.7104 -0.94 0.4
--.RRL.Z. 1994-09-20T06:19:38.84 10.0 undecidable manual SG 229 0.7326 -1.05 0.3
--.ROB.Z. 1994-09-20T06:19:36.78 10.0 undecidable manual PN 168 1.11 0.86 1.2
--.PCP.Z. 1994-09-20T06:19:36.88 10.0 undecidable manual PN 140 1.0989 1.17 0.7
--.TMA.Z. 1994-09-20T06:19:36.70 10.0 undecidable manual PN 51 1.1544 0.21 2.1
--.LPL.Z. 1994-09-20T06:19:35.10 10.0 undecidable manual SG 281 0.5883 -0.6 0.6
--.ENR.Z. 1994-09-20T06:19:35.84 10.0 undecidable manual PN 184 1.1655 -0.89 1.1
--.STV.Z. 1994-09-20T06:19:35.90 10.0 undecidable manual PN 188 1.1544 -0.6 1.6
--.LPG.Z. 1994-09-20T06:19:34.20 10.0 undecidable manual SG 280 0.5772 -0.98 0.4
--.PZZ.Z. 1994-09-20T06:19:33.20 10.0 undecidable manual PG 200 0.9435 -0.26 2
--.EMS.Z. 1994-09-20T06:19:30.60 10.0 undecidable manual PG 326 0.7992 -0.07 2.2
--.BNI.Z. 1994-09-20T06:19:29.00 10.0 undecidable manual PG 241 0.7104 0.06 2.2
--.RRL.Z. 1994-09-20T06:19:29.68 10.0 undecidable manual PG 229 0.7326 0.48 1.8
--.MMK.Z. 1994-09-20T06:19:28.50 10.0 undecidable manual PG 22 0.7104 -0.41 1.9
--.DIX.Z. 1994-09-20T06:19:28.10 10.0 undecidable manual PG 350 0.6882 -0.46 1.8
--.LPL.Z. 1994-09-20T06:19:27.00 10.0 undecidable manual PG 281 0.5883 0.22 2.1
--.ORO.Z. 1994-09-20T06:19:27.00 10.0 undecidable manual SG 50 0.3663 -1.43 0.1
--.LPG.Z. 1994-09-20T06:19:26.80 10.0 undecidable manual PG 280 0.5772 0.32 2
--.RSP.Z. 1994-09-20T06:19:26.89 10.0 undecidable manual SG 221 0.3219 -0.12 0.9
--.LSD.Z. 1994-09-20T06:19:25.81 10.0 undecidable manual SG 282 0.2886 -0.22 0.8
--.ORO.Z. 1994-09-20T06:19:22.50 10.0 undecidable manual PG 50 0.3663 -0.09 2.2
--.RSP.Z. 1994-09-20T06:19:22.29 10.0 undecidable manual PG 221 0.3219 0.52 1.7
--.LSD.Z. 1994-09-20T06:19:21.80 10.0 undecidable manual PG 282 0.2886 0.6 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download