Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 29-05-1987 and time 12:40:20 (UTC) in region 2 km W Boves (CN)

A magnitude Md 2.0 earthquake occured in region: 2 km W Boves (CN), on

  • 29-05-1987 12:40:20 (UTC)
  • 29-05-1987 14:40:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3290, 7.5320 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.

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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
Boves CN 2 9835 9835
Borgo San Dalmazzo CN 4 12468 22303
Robilante CN 4 2306 24609
Roccavione CN 4 2761 27370
Vignolo CN 6 2600 29970
Peveragno CN 7 5543 35513
Roccasparvera CN 7 741 36254
Cuneo CN 7 56081 92335
Cervasca CN 8 5013 97348
Roaschia CN 9 107 97455
Vernante CN 9 1178 98633
Gaiola CN 10 582 99215
Beinette CN 10 3423 102638
Bernezzo CN 10 4104 106742
Rittana CN 11 109 106851
Moiola CN 11 234 107085
Chiusa di Pesio CN 12 3676 110761
Valdieri CN 12 935 111696
Valloriate CN 13 109 111805
Caraglio CN 13 6836 118641
Entracque CN 14 774 119415
Limone Piemonte CN 15 1485 120900
Margarita CN 15 1441 122341
Pianfei CN 15 2202 124543
Valgrana CN 15 786 125329
Castelletto Stura CN 16 1351 126680
Roccaforte Mondovì CN 17 2085 128765
Montemale di Cuneo CN 18 241 129006
Morozzo CN 18 2086 131092
Montanera CN 18 760 131852
Tarantasca CN 18 2122 133974
Villanova Mondovì CN 19 5792 139766
Demonte CN 19 2003 141769
Monterosso Grana CN 19 505 142274

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km S of Cuneo (56081 inhabitants)
60 Km NW of Sanremo (54807 inhabitants)
76 Km W of Savona (61345 inhabitants)
76 Km S of Moncalieri (57294 inhabitants)
83 Km SW of Asti (76202 inhabitants)
84 Km S of Torino (890529 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 2.0 1987-05-29
12:40:20		 44.329 7.532 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 48359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-29 12:40:20 ± 0.141
Latitude 44.3290 ± 0.0085
Longitude 7.5320 ± 0.0100
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 48359

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) 1234.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01109
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 48359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:47:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LRG.Z. 1987-05-29T12:41:02.70 10.0 undecidable manual SN 224 1.2099 1 0.1
--.LMR.Z. 1987-05-29T12:41:02.60 10.0 undecidable manual SN 216 1.2321 0.35 0.5
--.FRF.Z. 1987-05-29T12:40:55.50 10.0 undecidable manual SG 219 0.9879 -0.38 0.4
--.LMR.Z. 1987-05-29T12:40:45.30 10.0 undecidable manual PN 216 1.2321 0.5 1
--.LRG.Z. 1987-05-29T12:40:45.40 10.0 undecidable manual PN 224 1.2099 0.91 0.3
--.FRF.Z. 1987-05-29T12:40:41.40 10.0 undecidable manual PG 219 0.9879 0.28 1.6
--.FIN.Z. 1987-05-29T12:40:40.10 10.0 undecidable manual SG 103 0.4995 0.24 0.8
--.IMI.Z. 1987-05-29T12:40:39.40 10.0 undecidable manual SG 147 0.4884 -0.24 0.7
--.SBF.Z. 1987-05-29T12:40:38.40 10.0 undecidable manual SG 188 0.4662 -0.56 0.3
--.PZZ.Z. 1987-05-29T12:40:33.90 10.0 undecidable manual SG 299 0.3552 -0.81 0.2
--.FIN.Z. 1987-05-29T12:40:32.00 10.0 undecidable manual PG 103 0.4995 0.13 2.1
--.DOI.Z. 1987-05-29T12:40:31.50 10.0 undecidable manual SG 310 0.2553 0.05 0.9
--.IMI.Z. 1987-05-29T12:40:31.20 10.0 undecidable manual PG 147 0.4884 -0.55 1
--.SBF.Z. 1987-05-29T12:40:30.90 10.0 undecidable manual PG 188 0.4662 -0.46 1.2
--.PZZ.Z. 1987-05-29T12:40:28.60 10.0 undecidable manual PG 299 0.3552 -0.3 1.8
--.STV.Z. 1987-05-29T12:40:27.40 10.0 undecidable manual SG 241 0.1665 -0.13 0.8
--.DOI.Z. 1987-05-29T12:40:27.00 10.0 undecidable manual PG 310 0.2553 -0.02 2.2
--.STV.Z. 1987-05-29T12:40:25.00 10.0 undecidable manual PG 241 0.1665 0.25 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download