ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Md 2.0 on date 13-12-1985 and time 10:22:05 (Italy) in region 3 km W Valdieri (CN)

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

  • 13-12-1985 09:22:05 (UTC)
  • 13-12-1985 10:22:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.29, 7.36 at 19 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
Valdieri CN 3 935 935
Moiola CN 5 234 1169
Demonte CN 6 2003 3172
Valloriate CN 6 109 3281
Entracque CN 6 774 4055
Gaiola CN 7 582 4637
Rittana CN 8 109 4746
Roaschia CN 8 107 4853
Roccasparvera CN 9 741 5594
Roccavione CN 11 2761 8355
Aisone CN 11 248 8603
Borgo San Dalmazzo CN 12 12468 21071
Vignolo CN 12 2600 23671
Robilante CN 12 2306 25977
Bernezzo CN 13 4104 30081
Valgrana CN 14 786 30867
Monterosso Grana CN 14 505 31372
Cervasca CN 14 5013 36385
Vinadio CN 15 644 37029
Vernante CN 15 1178 38207
Caraglio CN 16 6836 45043
Pradleves CN 16 250 45293
Boves CN 16 9835 55128
Montemale di Cuneo CN 17 241 55369
Castelmagno CN 18 66 55435
Cuneo CN 20 56081 111516
Limone Piemonte CN 20 1485 113001

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km SW of Cuneo (56081 inhabitants)
62 Km NW of Sanremo (54807 inhabitants)
84 Km SW of Moncalieri (57294 inhabitants)
90 Km W of Savona (61345 inhabitants)
91 Km S of Torino (890529 inhabitants)
96 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 1985-12-13
09:22:05
44.29 7.36 19 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 18009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-12-13 09:22:05 ± 0.115
Latitude 44.29 ± 0.00
Longitude 7.36 ± 0.01
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 18009

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) 804.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.0055
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 18009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:20:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FIN.Z. 1985-12-13T09:22:27.60 10.0 undecidable manual SG 97 0.0055 0.12 0.3
--.IMP.Z. 1985-12-13T09:22:24.70 10.0 undecidable manual SG 133 0.0048 -0.23 0.1
--.ROB.Z. 1985-12-13T09:22:20.00 10.0 undecidable manual SG 87 0.0033 0.16 0.2
--.FIN.Z. 1985-12-13T09:22:18.20 10.0 undecidable manual PG 97 0.0055 -0.04 1.5
--.IMP.Z. 1985-12-13T09:22:16.90 10.0 undecidable manual PG 133 0.0048 0.13 0.8
--.DA9.Z. 1985-12-13T09:22:15.70 10.0 undecidable manual SG 339 0.002 -0.06 0.7
--.ROB.Z. 1985-12-13T09:22:13.70 10.0 undecidable manual PG 87 0.0033 -0.13 1
--.DA9.Z. 1985-12-13T09:22:11.50 10.0 undecidable manual PG 339 0.002 0.03 2.1
--.STV.Z. 1985-12-13T09:22:11.90 10.0 undecidable manual SG 208 0.0003 -0.02 1.3
--.STV.Z. 1985-12-13T09:22:09.30 10.0 undecidable manual PG 208 0.0003 0.04 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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