ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Md 2.0 on date 06-09-1985 and time 13:29:11 (Italy) in region 3 km W Roccavione (CN)

A magnitude Md 2.0 earthquake occured in region: 3 km W Roccavione (CN), on

  • 06-09-1985 11:29:11 (UTC)
  • 06-09-1985 13:29:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3, 7.45 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Roccavione CN 3 2761 2761
Roaschia CN 4 107 2868
Borgo San Dalmazzo CN 4 12468 15336
Roccasparvera CN 4 741 16077
Gaiola CN 5 582 16659
Robilante CN 5 2306 18965
Valdieri CN 5 935 19900
Moiola CN 5 234 20134
Rittana CN 7 109 20243
Vignolo CN 7 2600 22843
Valloriate CN 7 109 22952
Entracque CN 8 774 23726
Boves CN 9 9835 33561
Cervasca CN 9 5013 38574
Vernante CN 9 1178 39752
Bernezzo CN 10 4104 43856
Demonte CN 12 2003 45859
Caraglio CN 13 6836 52695
Cuneo CN 13 56081 108776
Valgrana CN 13 786 109562
Peveragno CN 14 5543 115105
Limone Piemonte CN 15 1485 116590
Monterosso Grana CN 16 505 117095
Montemale di Cuneo CN 16 241 117336
Beinette CN 17 3423 120759
Aisone CN 18 248 121007
Chiusa di Pesio CN 18 3676 124683
Pradleves CN 19 250 124933
Dronero CN 20 7035 131968

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Cuneo (56081 inhabitants)
60 Km NW of Sanremo (54807 inhabitants)
80 Km S of Moncalieri (57294 inhabitants)
82 Km W of Savona (61345 inhabitants)
88 Km S of Torino (890529 inhabitants)
89 Km SW of Asti (76202 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 1985-09-06
11:29:11
44.3 7.45 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 12839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-09-06 11:29:11 ± 0.132
Latitude 44.30 ± 0.01
Longitude 7.45 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 12839

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) 1560.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00267
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 12839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:16:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ROB.Z. 1985-09-06T11:29:23.10 10.0 undecidable manual SG 89 0.0027 -0.07 0.8
--.DA9.Z. 1985-09-06T11:29:21.00 10.0 undecidable manual SG 323 0.0022 -0.39 0.3
--.ROB.Z. 1985-09-06T11:29:18.30 10.0 undecidable manual PG 89 0.0027 0.05 2
--.DA9.Z. 1985-09-06T11:29:17.50 10.0 undecidable manual PG 323 0.0022 0.27 1.4
--.STV.Z. 1985-09-06T11:29:17.20 10.0 undecidable manual SG 238 0.0009 0.47 0.2
--.STV.Z. 1985-09-06T11:29:14.20 10.0 undecidable manual PG 238 0.0009 -0.33 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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