Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.3 on date 21-05-1992 and time 10:33:35 (Italy) in region 1 km W Melle (CN)

A magnitude Md 2.3 earthquake occured in region: 1 km W Melle (CN), on

  • 21-05-1992 08:33:35 (UTC)
  • 21-05-1992 10:33:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5620, 7.3040 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.

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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
Melle CN 1 292 292
Frassino CN 2 265 557
Valmala CN 4 52 609
Brossasco CN 5 1084 1693
Isasca CN 7 76 1769
Venasca CN 7 1437 3206
Gambasca CN 8 371 3577
Martiniana Po CN 9 734 4311
San Damiano Macra CN 9 430 4741
Brondello CN 9 290 5031
Sampeyre CN 9 1022 6053
Cartignano CN 9 190 6243
Sanfront CN 10 2395 8638
Roccabruna CN 10 1585 10223
Rossana CN 11 908 11131
Villar San Costanzo CN 11 1547 12678
Rifreddo CN 11 1078 13756
Dronero CN 12 7035 20791
Pagno CN 12 585 21376
Macra CN 12 59 21435
Piasco CN 12 2774 24209
Revello CN 12 4262 28471
Castellar CN 13 295 28766
Celle di Macra CN 13 100 28866
Paesana CN 14 2784 31650
Costigliole Saluzzo CN 14 3375 35025
Envie CN 15 2074 37099
Busca CN 15 10181 47280
Montemale di Cuneo CN 15 241 47521
Verzuolo CN 15 6459 53980
Stroppo CN 15 103 54083
Oncino CN 16 76 54159
Manta CN 16 3787 57946
Pradleves CN 16 250 58196
Monterosso Grana CN 17 505 58701
Elva CN 17 97 58798
Ostana CN 17 83 58881
Saluzzo CN 18 16960 75841
Valgrana CN 18 786 76627
Barge CN 18 7774 84401
Castelmagno CN 18 66 84467
Villafalletto CN 19 2925 87392
Caraglio CN 19 6836 94228
Casteldelfino CN 19 157 94385
Crissolo CN 19 168 94553

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Cuneo (56081 inhabitants)
58 Km SW of Moncalieri (57294 inhabitants)
64 Km SW of Torino (890529 inhabitants)
81 Km W of Asti (76202 inhabitants)
91 Km NW of Sanremo (54807 inhabitants)
98 Km W of Savona (61345 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 2.3
M 2.7 		1992-05-21
08:33:35		 44.562 7.304 9 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 164969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-21 08:33:35 ± 0.188
Latitude 44.5620 ± 0.0101
Longitude 7.3040 ± 0.0178
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 164969

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) 1802.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
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) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.03327
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 164969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:34:17

M:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 164969
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
--.PGF.Z. 1992-05-21T08:34:41.80 10.0 undecidable manual SN 147 2.3532 -0.32 0.4
--.BGF.Z. 1992-05-21T08:34:36.50 10.0 undecidable manual PN! 304 3.6963 4.13 0
--.BOB.Z. 1992-05-21T08:34:24.27 10.0 undecidable manual SN 81 1.5318 1.65 0
--.PGF.Z. 1992-05-21T08:34:15.10 10.0 undecidable manual PN 147 2.3532 1.18 0.3
--.ORX.Z. 1992-05-21T08:34:12.25 10.0 undecidable manual SN 23 1.1655 -1.67 0.1
--.LPG.Z. 1992-05-21T08:34:08.50 10.0 undecidable manual SG 337 1.0101 -1.46 0.1
--.PCP.Z. 1992-05-21T08:34:05.68 10.0 undecidable manual SG 90 0.8769 -0.14 0.8
--.BOB.Z. 1992-05-21T08:34:05.92 10.0 negative manual PN! 81 1.5318 3.26 0
--.LSD.Z. 1992-05-21T08:34:04.86 10.0 undecidable manual SG 353 0.8991 -1.5 0.1
--.LMR.Z. 1992-05-21T08:34:01.50 10.0 undecidable manual PN 205 1.3431 1.36 0.3
--.IMI.Z. 1992-05-21T08:34:01.53 10.0 undecidable manual SG 146 0.777 -0.82 0.4
--.CKI.Z. 1992-05-21T08:34:01.31 10.0 undecidable manual SG 101 0.6993 1.1 0.3
--.FIN.Z. 1992-05-21T08:34:00.90 10.0 undecidable manual SG 118 0.7326 -1 0.3
--.LRG.Z. 1992-05-21T08:34:00.70 10.0 undecidable manual PN 211 1.2987 1.33 0.3
--.SBF.Z. 1992-05-21T08:33:58.90 10.0 undecidable manual SG 172 0.6993 -1.17 0.2
--.BNI.Z. 1992-05-21T08:33:57.70 10.0 undecidable manual SG 318 0.6549 -0.94 0.4
--.FRF.Z. 1992-05-21T08:33:57.10 10.0 undecidable manual PN 205 1.11 0.35 1.6
--.RSP.Z. 1992-05-21T08:33:56.50 10.0 undecidable manual SG 356 0.5883 -0.33 0.7
--.ORX.Z. 1992-05-21T08:33:56.76 10.0 undecidable manual PN 23 1.1655 -0.88 0.8
--.LPL.Z. 1992-05-21T08:33:56.40 10.0 undecidable manual PG 337 1.0323 0.63 1.3
--.LPG.Z. 1992-05-21T08:33:55.79 10.0 undecidable manual PG 337 1.0101 0.44 1.6
--.RRL.Z. 1992-05-21T08:33:53.79 10.0 undecidable manual SG 314 0.5106 -0.15 0.8
--.PCP.Z. 1992-05-21T08:33:53.20 10.0 undecidable manual PG 90 0.8769 0.06 2
--.LSD.Z. 1992-05-21T08:33:52.81 10.0 undecidable manual PG 353 0.8991 -0.46 1.6
--.ROB.Z. 1992-05-21T08:33:52.71 10.0 undecidable manual SG 122 0.4773 -0.21 0.8
--.IMI.Z. 1992-05-21T08:33:51.70 10.0 undecidable manual PG 146 0.777 0.11 2
--.CKI.Z. 1992-05-21T08:33:49.59 10.0 undecidable manual PG 101 0.6993 -0.13 2
--.SBF.Z. 1992-05-21T08:33:49.79 10.0 undecidable manual PG 172 0.6993 0.15 2
--.FIN.Z. 1992-05-21T08:33:49.94 10.0 undecidable manual PG 118 0.7326 -0.29 1.9
--.BNI.Z. 1992-05-21T08:33:49.27 10.0 undecidable manual PG 318 0.6549 0.45 1.7
--.ENR.Z. 1992-05-21T08:33:47.70 10.0 undecidable manual SG 165 0.3441 -1.46 0.1
--.RSP.Z. 1992-05-21T08:33:47.79 10.0 undecidable manual PG 356 0.5883 0.28 1.9
--.RRL.Z. 1992-05-21T08:33:46.35 10.0 undecidable manual PG 314 0.5106 0.25 1.9
--.STV.Z. 1992-05-21T08:33:46.35 10.0 undecidable manual SG 176 0.3108 -1.08 0.3
--.ROB.Z. 1992-05-21T08:33:45.63 10.0 undecidable manual PG 122 0.4773 0.12 2
--.STV.Z. 1992-05-21T08:33:42.15 10.0 undecidable manual PG 176 0.3108 -0.19 1.9
--.BHB.Z. 1992-05-21T08:33:42.35 10.0 undecidable manual PG 353 0.2664 0.71 1.3
--.ENR.Z. 1992-05-21T08:33:42.45 10.0 undecidable manual PG 165 0.3441 -0.53 1.5
--.PZZ.Z. 1992-05-21T08:33:41.12 10.0 undecidable manual SG 248 0.1554 -1.08 0.3
--.PZZ.Z. 1992-05-21T08:33:39.38 10.0 undecidable manual PG 248 0.1554 0.05 2
--.DOI.Z. 1992-05-21T08:33:38.75 10.0 undecidable manual SG 215 0.0666 -0.91 0.4
--.DOI.Z. 1992-05-21T08:33:37.78 10.0 negative manual PG 215 0.0666 -0.08 4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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