Earthquake with magnitude of Md 2.2 on date 17-03-1986 and time 11:09:51 (Italy) in region 3 km N Roaschia (CN)

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

  • 17-03-1986 10:09:51 (UTC)
  • 17-03-1986 11:09:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2960, 7.4540 at 5 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
Roccavione CN 3 2761 2868
Robilante CN 5 2306 5174
Borgo San Dalmazzo CN 5 12468 17642
Valdieri CN 5 935 18577
Roccasparvera CN 5 741 19318
Moiola CN 6 234 19552
Gaiola CN 6 582 20134
Vignolo CN 7 2600 22734
Rittana CN 7 109 22843
Entracque CN 8 774 23617
Valloriate CN 8 109 23726
Vernante CN 9 1178 24904
Boves CN 9 9835 34739
Cervasca CN 10 5013 39752
Bernezzo CN 11 4104 43856
Demonte CN 13 2003 45859
Cuneo CN 13 56081 101940
Peveragno CN 14 5543 107483
Caraglio CN 14 6836 114319
Valgrana CN 14 786 115105
Limone Piemonte CN 14 1485 116590
Monterosso Grana CN 16 505 117095
Montemale di Cuneo CN 17 241 117336
Beinette CN 17 3423 120759
Chiusa di Pesio CN 18 3676 124435
Aisone CN 19 248 124683
Pradleves CN 19 250 124933

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Cuneo (56081 inhabitants)
59 Km NW of Sanremo (54807 inhabitants)
81 Km S of Moncalieri (57294 inhabitants)
82 Km W of Savona (61345 inhabitants)
88 Km S of Torino (890529 inhabitants)
90 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 2.2 1986-03-17
10:09:51
44.296 7.454 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 24369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-03-17 10:09:51 ± 0.126
Latitude 44.2960 ± 0.0120
Longitude 7.4540 ± 0.0232
Depth (km) 5 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 24369

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) 2279.2
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 7
Number of defining phases 7
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) 0.00534
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 24369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:26:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CKI.Z. 1986-03-17T10:10:04.50 10.0 undecidable manual PG 77 0.5883 -0.05 0.8
--.SOO.Z. 1986-03-17T10:10:03.90 10.0 undecidable manual SG 309 0.3219 -0.55 0
--.SOO.Z. 1986-03-17T10:09:59.40 10.0 undecidable manual PG 309 0.3219 0.32 0.3
--.DA9.Z. 1986-03-17T10:09:57.50 10.0 undecidable manual PG 324 0.2553 0 1.4
--.STV.Z. 1986-03-17T10:09:56.00 10.0 undecidable manual SG 243 0.0999 0.08 0.5
--.STV.Z. 1986-03-17T10:09:54.10 10.0 undecidable manual PG 243 0.0999 -0.04 1.3
--.ENR.Z. 1986-03-17T10:09:53.60 10.0 undecidable manual PG 199 0.0666 -0.03 2.7
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