Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 16-09-1986 and time 12:02:22 (Italy) in region 2 km W Vernante (CN)

A magnitude Md 2.0 earthquake occured in region: 2 km W Vernante (CN), on

  • 16-09-1986 10:02:22 (UTC)
  • 16-09-1986 12:02:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2510, 7.5120 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.

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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 5 2306 3484
Roaschia CN 5 107 3591
Limone Piemonte CN 8 1485 5076
Roccavione CN 8 2761 7837
Borgo San Dalmazzo CN 9 12468 20305
Entracque CN 9 774 21079
Boves CN 10 9835 30914
Valdieri CN 10 935 31849
Roccasparvera CN 12 741 32590
Peveragno CN 12 5543 38133
Moiola CN 12 234 38367
Gaiola CN 13 582 38949
Vignolo CN 13 2600 41549
Rittana CN 14 109 41658
Valloriate CN 15 109 41767
Cervasca CN 15 5013 46780
Chiusa di Pesio CN 16 3676 50456
Cuneo CN 16 56081 106537
Bernezzo CN 17 4104 110641
Beinette CN 17 3423 114064
Demonte CN 19 2003 116067
Caraglio CN 20 6836 122903

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km S of Cuneo (56081 inhabitants)
53 Km NW of Sanremo (54807 inhabitants)
78 Km W of Savona (61345 inhabitants)
85 Km S of Moncalieri (57294 inhabitants)
91 Km SW of Asti (76202 inhabitants)
93 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
Bulletin
Rev1000 		Md 2.0
M 2.1 		1986-09-16
10:02:22		 44.251 7.512 10 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 34189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-16 10:02:22 ± 0.101
Latitude 44.2510 ± 0.0137
Longitude 7.5120 ± 0.0145
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34189

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) 1911.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00510
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 34189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:34:46

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 34189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CKI.Z. 1986-09-16T10:02:43.00 10.0 undecidable manual SG 72 0.5661 0.38 0.3
--.FIN.Z. 1986-09-16T10:02:40.30 10.0 undecidable manual SG 94 0.4995 0.02 0.6
--.IMP.Z. 1986-09-16T10:02:37.80 10.0 undecidable manual SG 140 0.4218 -0.25 0.5
--.SOO.Z. 1986-09-16T10:02:36.10 10.0 undecidable manual SG 310 0.3885 -0.58 0.1
--.CKI.Z. 1986-09-16T10:02:34.50 10.0 undecidable manual PG 72 0.5661 0.5 0.4
--.FIN.Z. 1986-09-16T10:02:32.60 10.0 undecidable manual PG 94 0.4995 -0.05 1.5
--.IMP.Z. 1986-09-16T10:02:31.60 10.0 undecidable manual PG 140 0.4218 0.24 1.2
--.ROB.Z. 1986-09-16T10:02:31.90 10.0 undecidable manual SG 78 0.2553 -0.77 0
--.SOO.Z. 1986-09-16T10:02:30.80 10.0 undecidable manual PG 310 0.3885 0.23 1.3
--.STV.Z. 1986-09-16T10:02:28.50 10.0 undecidable manual SG 270 0.1221 0.25 0.6
--.ROB.Z. 1986-09-16T10:02:27.90 10.0 undecidable manual PG 78 0.2553 -0.35 1
--.ENR.Z. 1986-09-16T10:02:26.30 10.0 undecidable manual SG 250 0.0666 -0.2 0.9
--.STV.Z. 1986-09-16T10:02:25.80 10.0 undecidable manual PG 270 0.1221 0.1 1.8
--.ENR.Z. 1986-09-16T10:02:24.60 10.0 undecidable manual PG 250 0.0666 -0.09 3.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download