Earthquake with magnitude of Md 2.4 on date 12-09-1986 and time 10:12:05 (UTC) in region 5 km E Entracque (CN)

A magnitude Md 2.4 earthquake occured in region: 5 km E Entracque (CN), on

  • 12-09-1986 10:12:05 (UTC)
  • 12-09-1986 12:12:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2180, 7.4590 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
Entracque CN 6 774 774
Roaschia CN 6 107 881
Vernante CN 7 1178 2059
Valdieri CN 8 935 2994
Robilante CN 10 2306 5300
Limone Piemonte CN 10 1485 6785
Roccavione CN 11 2761 9546
Borgo San Dalmazzo CN 13 12468 22014
Moiola CN 13 234 22248
Gaiola CN 14 582 22830
Roccasparvera CN 14 741 23571
Boves CN 15 9835 33406
Valloriate CN 15 109 33515
Rittana CN 16 109 33624
Vignolo CN 16 2600 36224
Demonte CN 17 2003 38227
Peveragno CN 18 5543 43770
Cervasca CN 19 5013 48783
Bernezzo CN 19 4104 52887

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Cuneo (56081 inhabitants)
51 Km NW of Sanremo (54807 inhabitants)
82 Km W of Savona (61345 inhabitants)
89 Km S of Moncalieri (57294 inhabitants)
96 Km SW of Asti (76202 inhabitants)
97 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 2.4
M 2.6
1986-09-12
10:12:05
44.218 7.459 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 33969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-12 10:12:05 ± 0.593
Latitude 44.2180 ± 0.0443
Longitude 7.4590 ± 0.0274
Depth (km) 10 ± 7 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 33969

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) 5391.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00899
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 33969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:34:34

M:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 33969
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
--.BN9.Z. 1986-09-12T10:12:39.00 10.0 undecidable manual SG 326 0.999 -0.43 0.3
--.BN9.Z. 1986-09-12T10:12:27.00 10.0 undecidable manual PG 326 0.999 1.98 0.1
--.CKI.Z. 1986-09-12T10:12:27.00 10.0 undecidable manual SG 70 0.6105 -0.13 0.7
--.FIN.Z. 1986-09-12T10:12:24.50 10.0 undecidable manual SG 90 0.5328 0 0.8
--.SOO.Z. 1986-09-12T10:12:19.70 10.0 undecidable manual SG 318 0.3774 0.13 0.7
--.ROB.Z. 1986-09-12T10:12:17.70 10.0 undecidable manual SG 73 0.3108 0.57 0.6
--.CKI.Z. 1986-09-12T10:12:17.00 10.0 undecidable manual PG 70 0.6105 -0.91 0.9
--.FIN.Z. 1986-09-12T10:12:16.30 10.0 undecidable manual PG 90 0.5328 -0.1 2
--.SOO.Z. 1986-09-12T10:12:13.10 10.0 undecidable manual PG 318 0.3774 -0.45 1.2
--.ROB.Z. 1986-09-12T10:12:12.40 10.0 undecidable manual PG 73 0.3108 0.25 1.9
--.STV.Z. 1986-09-12T10:12:10.60 10.0 undecidable manual SG 289 0.0888 0.08 0.8
--.STV.Z. 1986-09-12T10:12:08.40 10.0 undecidable manual PG 289 0.0888 0.07 2
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