Earthquake with magnitude of Md 2.1 on date 05-08-1986 and time 11:28:53 (UTC) in region 3 km NE Valdieri (CN)

A magnitude Md 2.1 earthquake occured in region: 3 km NE Valdieri (CN), on

  • 05-08-1986 11:28:53 (UTC)
  • 05-08-1986 13:28:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2920, 7.4240 at 13 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
Roaschia CN 4 107 1042
Moiola CN 4 234 1276
Gaiola CN 5 582 1858
Roccavione CN 5 2761 4619
Roccasparvera CN 6 741 5360
Entracque CN 6 774 6134
Valloriate CN 7 109 6243
Borgo San Dalmazzo CN 7 12468 18711
Rittana CN 7 109 18820
Robilante CN 7 2306 21126
Vignolo CN 9 2600 23726
Vernante CN 10 1178 24904
Demonte CN 10 2003 26907
Bernezzo CN 11 4104 31011
Cervasca CN 11 5013 36024
Boves CN 11 9835 45859
Valgrana CN 14 786 46645
Caraglio CN 14 6836 53481
Monterosso Grana CN 15 505 53986
Cuneo CN 15 56081 110067
Limone Piemonte CN 16 1485 111552
Peveragno CN 16 5543 117095
Aisone CN 16 248 117343
Montemale di Cuneo CN 17 241 117584
Pradleves CN 18 250 117834
Beinette CN 20 3423 121257
Vinadio CN 20 644 121901

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SW of Cuneo (56081 inhabitants)
60 Km NW of Sanremo (54807 inhabitants)
82 Km S of Moncalieri (57294 inhabitants)
84 Km W of Savona (61345 inhabitants)
89 Km S of Torino (890529 inhabitants)
92 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
Bulletin
Rev1000
Md 2.1 1986-08-05
11:28:53
44.292 7.424 13 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 32279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-08-05 11:28:53 ± 0.176
Latitude 44.2920 ± 0.0091
Longitude 7.4240 ± 0.0133
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 32279

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) 1462.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
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) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.00510
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 32279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:33:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FIN.Z. 1986-08-05T11:29:13.50 10.0 undecidable manual SG 98 0.5661 0.2 0.5
--.IMP.Z. 1986-08-05T11:29:11.70 10.0 undecidable manual SG 137 0.4995 0.43 0.2
--.ROB.Z. 1986-08-05T11:29:05.80 10.0 undecidable manual SG 87 0.3108 0.38 0.2
--.FIN.Z. 1986-08-05T11:29:04.30 10.0 undecidable manual PG 98 0.5661 -0.48 0.2
--.IMP.Z. 1986-08-05T11:29:03.60 10.0 undecidable manual PG 137 0.4995 0 1.7
--.DA9.Z. 1986-08-05T11:29:03.00 10.0 undecidable manual SG 328 0.2442 -0.04 0.8
--.ROB.Z. 1986-08-05T11:29:00.10 10.0 undecidable manual PG 87 0.3108 -0.13 1.9
--.DA9.Z. 1986-08-05T11:28:59.00 10.0 undecidable manual PG 328 0.2442 0.14 1.8
--.STV.Z. 1986-08-05T11:28:58.30 10.0 undecidable manual SG 238 0.0666 0.04 0.8
--.STV.Z. 1986-08-05T11:28:56.00 10.0 undecidable manual PG 238 0.0666 -0.09 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
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