Earthquake with magnitude of Md 2.1 on date 10-04-1986 and time 21:03:19 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude Md 2.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 10-04-1986 21:03:19 (UTC)
  • 10-04-1986 23:03:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8080, 6.7700 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
Claviere TO 15 214 214
Cesana Torinese TO 16 967 1181
Sauze di Cesana TO 17 244 1425
Sestriere TO 19 929 2354

Municipalities with at least 50000 inhabitants

An earthquake occurred to
75 Km W of Moncalieri (57294 inhabitants)
77 Km NW of Cuneo (56081 inhabitants)
78 Km W 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 2.1 1986-04-10
21:03:19
44.808 6.77 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 25569
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-04-10 21:03:19 ± 0.177
Latitude 44.8080 ± 0.0198
Longitude 6.7700 ± 0.0426
Depth (km) 12 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 25569

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) 4020.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00664
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 25569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:27:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ENR.Z. 1986-04-10T21:03:45.40 10.0 undecidable manual SG 141 0.7326 0.14 0.5
--.STV.Z. 1986-04-10T21:03:43.10 10.0 undecidable manual SG 144 0.6882 -0.23 0.3
--.DA9.Z. 1986-04-10T21:03:36.00 10.0 undecidable manual SG 131 0.444 0.01 0.8
--.ENR.Z. 1986-04-10T21:03:34.50 10.0 undecidable manual PG 141 0.7326 0.14 1.2
--.STV.Z. 1986-04-10T21:03:33.30 10.0 undecidable manual PG 144 0.6882 0.05 1.6
--.SOO.Z. 1986-04-10T21:03:33.80 10.0 undecidable manual SG 141 0.3774 0.09 0.7
--.DA9.Z. 1986-04-10T21:03:29.00 10.0 undecidable manual PG 131 0.444 -0.01 2
--.BN9.Z. 1986-04-10T21:03:29.00 10.0 undecidable manual SG 345 0.2553 -0.53 0
--.SOO.Z. 1986-04-10T21:03:27.40 10.0 undecidable manual PG 141 0.3774 -0.29 0.7
--.BN9.Z. 1986-04-10T21:03:25.50 10.0 undecidable manual PG 345 0.2553 0.22 1.1
--.RRL.Z. 1986-04-10T21:03:22.90 10.0 undecidable manual PG 5 0.111 0.06 1.9
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