ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Md 2.6 on date 05-12-1985 and time 12:31:22 (Italy) in region 2 km NW Vernante (CN)

A magnitude Md 2.6 earthquake occured in region: 2 km NW Vernante (CN), on

  • 05-12-1985 11:31:22 (UTC)
  • 05-12-1985 12:31:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.26, 7.52 at 11 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
Vernante CN 2 1178 1178
Robilante CN 4 2306 3484
Roaschia CN 5 107 3591
Roccavione CN 7 2761 6352
Borgo San Dalmazzo CN 8 12468 18820
Boves CN 8 9835 28655
Limone Piemonte CN 8 1485 30140
Entracque CN 10 774 30914
Valdieri CN 10 935 31849
Roccasparvera CN 11 741 32590
Peveragno CN 11 5543 38133
Vignolo CN 12 2600 40733
Gaiola CN 12 582 41315
Moiola CN 12 234 41549
Rittana CN 13 109 41658
Valloriate CN 14 109 41767
Cervasca CN 14 5013 46780
Chiusa di Pesio CN 15 3676 50456
Cuneo CN 15 56081 106537
Bernezzo CN 16 4104 110641
Beinette CN 16 3423 114064
Demonte CN 18 2003 116067
Caraglio CN 19 6836 122903
Roccaforte Mondovì CN 20 2085 124988
Valgrana CN 20 786 125774
Pianfei CN 20 2202 127976

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km S of Cuneo (56081 inhabitants)
54 Km NW of Sanremo (54807 inhabitants)
77 Km W of Savona (61345 inhabitants)
83 Km S of Moncalieri (57294 inhabitants)
90 Km SW of Asti (76202 inhabitants)
91 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
Rev 1000 Md 2.6 1985-12-05
11:31:22
44.26 7.52 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 17429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-12-05 11:31:22 ± 0.12
Latitude 44.26 ± 0.01
Longitude 7.52 ± 0.01
Depth (km) 11 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 17429

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) 1678.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.01093
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:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 17429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:20:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LSD.Z. 1985-12-05T11:31:45.00 10.0 undecidable manual PN 347 0.0109 0.03 0.9
--.FIN.Z. 1985-12-05T11:31:40.00 10.0 undecidable manual SG 95 0.0045 -0.19 0.3
--.RRL.Z. 1985-12-05T11:31:38.70 10.0 undecidable manual PG 321 0.0075 -0.2 0.9
--.IMP.Z. 1985-12-05T11:31:38.30 10.0 undecidable manual SG 141 0.0039 0.05 0.6
--.SOO.Z. 1985-12-05T11:31:36.50 10.0 undecidable manual SG 309 0.0034 0.07 0.6
--.CK1.Z. 1985-12-05T11:31:35.30 10.0 undecidable manual PG 73 0.0051 1.41 0
--.DA9.Z. 1985-12-05T11:31:34.00 10.0 undecidable manual SG 321 0.0028 -0.07 0.6
--.ROB.Z. 1985-12-05T11:31:32.20 10.0 undecidable manual SG 80 0.0023 -0.29 0.2
--.FIN.Z. 1985-12-05T11:31:32.40 10.0 undecidable manual PG 95 0.0045 -0.21 0.9
--.IMP.Z. 1985-12-05T11:31:31.50 10.0 undecidable manual PG 141 0.0039 0.02 1.6
--.SOO.Z. 1985-12-05T11:31:30.20 10.0 undecidable manual PG 309 0.0034 -0.23 1.3
--.DA9.Z. 1985-12-05T11:31:29.20 10.0 negative manual PG 321 0.0028 0.13 3.2
--.ROB.Z. 1985-12-05T11:31:28.30 10.0 undecidable manual PG 80 0.0023 0.15 1.6
--.STV.Z. 1985-12-05T11:31:28.40 10.0 undecidable manual SG 265 0.0011 -0.08 0.6
--.STV.Z. 1985-12-05T11:31:25.90 10.0 undecidable manual PG 265 0.0011 0.05 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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