Earthquake with magnitude of M 2.2 on date 29-08-1986 and time 11:59:14 (Italy) in region 3 km S Roaschia (CN)

A magnitude M 2.2 earthquake occured in region: 3 km S Roaschia (CN), on

  • 29-08-1986 09:59:14 (UTC)
  • 29-08-1986 11:59:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2470, 7.4660 at 12 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
Roaschia CN 3 107 107
Entracque CN 5 774 881
Vernante CN 6 1178 2059
Valdieri CN 7 935 2994
Robilante CN 7 2306 5300
Roccavione CN 8 2761 8061
Borgo San Dalmazzo CN 9 12468 20529
Moiola CN 10 234 20763
Limone Piemonte CN 10 1485 22248
Roccasparvera CN 11 741 22989
Gaiola CN 11 582 23571
Boves CN 12 9835 33406
Valloriate CN 13 109 33515
Vignolo CN 13 2600 36115
Rittana CN 13 109 36224
Cervasca CN 15 5013 41237
Peveragno CN 15 5543 46780
Demonte CN 15 2003 48783
Bernezzo CN 16 4104 52887
Cuneo CN 18 56081 108968
Chiusa di Pesio CN 19 3676 112644
Caraglio CN 19 6836 119480
Valgrana CN 19 786 120266
Beinette CN 20 3423 123689

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SW of Cuneo (56081 inhabitants)
54 Km NW of Sanremo (54807 inhabitants)
81 Km W of Savona (61345 inhabitants)
86 Km S of Moncalieri (57294 inhabitants)
93 Km SW of Asti (76202 inhabitants)
94 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
M 2.2 1986-08-29
09:59:14
44.247 7.466 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 33249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-08-29 09:59:14 ± 0.153
Latitude 44.2470 ± 0.0136
Longitude 7.4660 ± 0.0072
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 33249

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) 1619.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00478
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

M:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 33249
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
--.FIN.Z. 1986-08-29T09:59:33.70 10.0 undecidable manual SG 93 0.5328 -0.15 0.4
--.SOO.Z. 1986-08-29T09:59:28.80 10.0 undecidable manual SG 314 0.3552 0.27 0.2
--.ROB.Z. 1986-08-29T09:59:26.20 10.0 undecidable manual SG 79 0.2886 -0.07 0.8
--.FIN.Z. 1986-08-29T09:59:25.80 10.0 undecidable manual PG 93 0.5328 0 1.7
--.SOO.Z. 1986-08-29T09:59:22.50 10.0 undecidable manual PG 314 0.3552 -0.24 0.6
--.ROB.Z. 1986-08-29T09:59:21.60 10.0 undecidable manual PG 79 0.2886 0.17 1.2
--.STV.Z. 1986-08-29T09:59:20.20 10.0 undecidable manual SG 272 0.0888 -0.06 0.8
--.STV.Z. 1986-08-29T09:59:18.00 10.0 undecidable manual PG 272 0.0888 0.04 2.2
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