Earthquake with magnitude of Md 2.0 on date 11-05-1987 and time 16:18:22 (Italy) in region 1 km N Rossana (CN)

A magnitude Md 2.0 earthquake occured in region: 1 km N Rossana (CN), on

  • 11-05-1987 14:18:22 (UTC)
  • 11-05-1987 16:18:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.55, 7.43 at 8 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
Rossana CN 1 908 908
Piasco CN 3 2774 3682
Venasca CN 3 1437 5119
Costigliole Saluzzo CN 5 3375 8494
Busca CN 5 10181 18675
Isasca CN 6 76 18751
Brossasco CN 6 1084 19835
Brondello CN 6 290 20125
Valmala CN 7 52 20177
Verzuolo CN 7 6459 26636
Pagno CN 7 585 27221
Castellar CN 8 295 27516
Villar San Costanzo CN 8 1547 29063
Manta CN 9 3787 32850
Villafalletto CN 9 2925 35775
Melle CN 9 292 36067
Martiniana Po CN 10 734 36801
Dronero CN 11 7035 43836
Roccabruna CN 11 1585 45421
Tarantasca CN 11 2122 47543
Gambasca CN 11 371 47914
Saluzzo CN 12 16960 64874
Vottignasco CN 12 537 65411
Revello CN 12 4262 69673
Frassino CN 13 265 69938
Lagnasco CN 13 1453 71391
Rifreddo CN 13 1078 72469
Montemale di Cuneo CN 13 241 72710
Centallo CN 14 6954 79664
Sanfront CN 14 2395 82059
Cartignano CN 14 190 82249
Caraglio CN 15 6836 89085
San Damiano Macra CN 15 430 89515
Envie CN 15 2074 91589
Valgrana CN 16 786 92375
Monterosso Grana CN 18 505 92880
Bernezzo CN 18 4104 96984
Scarnafigi CN 18 2162 99146
Cervasca CN 19 5013 104159
Pradleves CN 19 250 104409
Genola CN 19 2625 107034
Paesana CN 19 2784 109818
Sampeyre CN 19 1022 110840
Cuneo CN 20 56081 166921

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Cuneo (56081 inhabitants)
54 Km SW of Moncalieri (57294 inhabitants)
62 Km SW of Torino (890529 inhabitants)
73 Km SW of Asti (76202 inhabitants)
86 Km NW of Sanremo (54807 inhabitants)
88 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
Rev 1000 Md 2.0 1987-05-11
14:18:22
44.55 7.43 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 46789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-11 14:18:22 ± 0.282
Latitude 44.55 ± 0.01
Longitude 7.43 ± 0.02
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 46789

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) 2058
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.01238
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 46789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:45:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LMR.Z. 1987-05-11T14:19:06.70 10.0 undecidable manual SN 208 0.0124 0.69 0.2
--.FRF.Z. 1987-05-11T14:18:59.20 10.0 undecidable manual SN 209 0.0102 -0.95 0.1
--.LMR.Z. 1987-05-11T14:18:49.10 10.0 undecidable manual PN 208 0.0124 1.61 0
--.IMI.Z. 1987-05-11T14:18:47.90 10.0 undecidable manual SG 152 0.0064 0.41 0.6
--.BNI.Z. 1987-05-11T14:18:47.00 10.0 undecidable manual SG 313 0.0066 -0.92 0.2
--.SBF.Z. 1987-05-11T14:18:45.70 10.0 undecidable manual SG 179 0.0062 -0.72 0.3
--.FRF.Z. 1987-05-11T14:18:44.50 10.0 undecidable manual PN 209 0.0102 0.39 1.1
--.FIN.Z. 1987-05-11T14:18:44.70 10.0 undecidable manual SG 121 0.0058 -0.63 0.4
--.RRL.Z. 1987-05-11T14:18:43.30 10.0 undecidable manual SG 308 0.0053 -0.04 0.8
--.BNI.Z. 1987-05-11T14:18:37.00 10.0 undecidable manual PG 313 0.0066 -0.05 1.8
--.ROB.Z. 1987-05-11T14:18:36.70 10.0 undecidable manual SG 127 0.0036 -0.57 0.5
--.SBF.Z. 1987-05-11T14:18:36.50 10.0 undecidable manual PG 179 0.0062 0.32 1.6
--.IMI.Z. 1987-05-11T14:18:36.70 10.0 undecidable manual PG 152 0.0064 -0.1 1.8
--.FIN.Z. 1987-05-11T14:18:35.50 10.0 undecidable manual PG 121 0.0058 -0.05 1.9
--.RRL.Z. 1987-05-11T14:18:34.40 10.0 undecidable manual PG 308 0.0053 0 1.9
--.STV.Z. 1987-05-11T14:18:33.00 10.0 undecidable manual SG 193 0.0028 -1.25 0.1
--.PZZ.Z. 1987-05-11T14:18:31.60 10.0 undecidable manual SG 259 0.0021 -0.25 0.7
--.ROB.Z. 1987-05-11T14:18:30.90 10.0 undecidable manual PG 127 0.0036 0 1.9
--.STV.Z. 1987-05-11T14:18:29.10 10.0 undecidable manual PG 193 0.0028 -0.05 1.9
--.PZZ.Z. 1987-05-11T14:18:28.00 10.0 undecidable manual PG 259 0.0021 0.23 1.8
--.DOI.Z. 1987-05-11T14:18:27.50 10.0 undecidable manual SG 250 0.0012 -0.83 0.3
--.DOI.Z. 1987-05-11T14:18:25.80 10.0 undecidable manual PG 250 0.0012 0.07 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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