Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.9 on date 06-12-1988 and time 21:52:07 (UTC) in region 1 km W Busca (CN)

A magnitude Md 1.9 earthquake occured in region: 1 km W Busca (CN), on

  • 06-12-1988 21:52:07 (UTC)
  • 06-12-1988 22:52:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5140, 7.4560 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
Busca CN 2 10181 10181
Rossana CN 4 908 11089
Costigliole Saluzzo CN 6 3375 14464
Piasco CN 6 2774 17238
Villar San Costanzo CN 7 1547 18785
Venasca CN 7 1437 20222
Tarantasca CN 8 2122 22344
Villafalletto CN 8 2925 25269
Dronero CN 9 7035 32304
Valmala CN 9 52 32356
Brossasco CN 10 1084 33440
Roccabruna CN 10 1585 35025
Verzuolo CN 10 6459 41484
Isasca CN 10 76 41560
Brondello CN 11 290 41850
Montemale di Cuneo CN 11 241 42091
Centallo CN 11 6954 49045
Caraglio CN 11 6836 55881
Vottignasco CN 11 537 56418
Pagno CN 11 585 57003
Manta CN 12 3787 60790
Melle CN 12 292 61082
Castellar CN 12 295 61377
Valgrana CN 13 786 62163
Cartignano CN 14 190 62353
Bernezzo CN 14 4104 66457
Martiniana Po CN 14 734 67191
Cervasca CN 15 5013 72204
Lagnasco CN 15 1453 73657
Saluzzo CN 15 16960 90617
Cuneo CN 15 56081 146698
Gambasca CN 16 371 147069
Monterosso Grana CN 16 505 147574
Frassino CN 16 265 147839
San Damiano Macra CN 16 430 148269
Castelletto Stura CN 17 1351 149620
Revello CN 17 4262 153882
Vignolo CN 17 2600 156482
Pradleves CN 17 250 156732
Rifreddo CN 17 1078 157810
Montanera CN 18 760 158570
Sanfront CN 18 2395 160965
Genola CN 18 2625 163590
Rittana CN 19 109 163699
Roccasparvera CN 19 741 164440
Envie CN 20 2074 166514

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of Cuneo (56081 inhabitants)
57 Km SW of Moncalieri (57294 inhabitants)
65 Km S of Torino (890529 inhabitants)
73 Km SW of Asti (76202 inhabitants)
81 Km NW of Sanremo (54807 inhabitants)
85 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 1.9
M 2.1 		1988-12-06
21:52:07		 44.514 7.456 10 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 82749
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-12-06 21:52:07 ± 0.183
Latitude 44.5140 ± 0.0144
Longitude 7.4560 ± 0.0176
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 82749

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) 2123.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
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) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.01222
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 82749
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:17:45

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 82749
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(km) Takeoff_angle Residual Weight
--.LMR.Z. 1988-12-06T21:52:51.30 10.0 undecidable manual SN 210 1.3542 0.8 0.2
--.LRG.Z. 1988-12-06T21:52:50.80 10.0 undecidable manual SN 216 1.3098 1.31 0
--.FRF.Z. 1988-12-06T21:52:44.30 10.0 undecidable manual SN 211 1.11 -0.34 0.5
--.LRG.Z. 1988-12-06T21:52:32.40 10.0 undecidable manual PN 216 1.3098 0.62 0.7
--.LMR.Z. 1988-12-06T21:52:32.90 10.0 undecidable manual PN 210 1.3542 0.53 0.8
--.IMI.Z. 1988-12-06T21:52:30.10 10.0 undecidable manual SG 152 0.6771 -1.24 0.1
--.LPL.Z. 1988-12-06T21:52:29.60 10.0 undecidable manual PN 333 1.1211 0.49 0.9
--.FRF.Z. 1988-12-06T21:52:29.30 10.0 undecidable manual PN 211 1.11 0.3 1.1
--.RSP.Z. 1988-12-06T21:52:29.30 10.0 undecidable manual SG 347 0.6438 -1.18 0.1
--.LPG.Z. 1988-12-06T21:52:29.30 10.0 undecidable manual PN 333 1.0989 0.5 0.9
--.RRL.Z. 1988-12-06T21:52:28.50 10.0 undecidable manual SG 310 0.6216 -1.15 0.1
--.SBF.Z. 1988-12-06T21:52:28.79 10.0 undecidable manual SG 181 0.6438 -1.63 0
--.FIN.Z. 1988-12-06T21:52:28.40 10.0 undecidable manual SG 119 0.6105 -0.98 0.2
--.LSD.Z. 1988-12-06T21:52:26.00 10.0 undecidable manual PG 347 0.9657 -0.63 0.8
--.IMI.Z. 1988-12-06T21:52:21.20 10.0 undecidable manual PG 152 0.6771 -0.11 1.7
--.SBF.Z. 1988-12-06T21:52:20.50 10.0 undecidable manual PG 181 0.6438 -0.27 1.5
--.FIN.Z. 1988-12-06T21:52:20.20 10.0 positive manual PG 119 0.6105 0.02 3.4
--.RRL.Z. 1988-12-06T21:52:20.20 10.0 undecidable manual PG 310 0.6216 -0.13 1.7
--.ROB.Z. 1988-12-06T21:52:20.80 10.0 undecidable manual SG 125 0.3552 -0.45 0.5
--.RSP.Z. 1988-12-06T21:52:20.50 10.0 undecidable manual PG 347 0.6438 -0.31 1.5
--.PZZ.Z. 1988-12-06T21:52:16.30 10.0 undecidable manual SG 267 0.2553 -1.36 0.1
--.STV.Z. 1988-12-06T21:52:16.70 10.0 undecidable manual SG 198 0.2664 -1.74 0
--.ROB.Z. 1988-12-06T21:52:15.70 10.0 negative manual PG 125 0.3552 0.22 3.2
--.PZZ.Z. 1988-12-06T21:52:13.30 10.0 positive manual PG 267 0.2553 -0.12 3.4
--.STV.Z. 1988-12-06T21:52:13.50 10.0 undecidable manual PG 198 0.2664 -0.37 1.4
--.DOI.Z. 1988-12-06T21:52:13.99 10.0 undecidable manual SG 265 0.1443 -0.38 0.6
--.DOI.Z. 1988-12-06T21:52:11.81 10.0 undecidable manual PG 265 0.1443 0.3 1.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download