Earthquake with magnitude of Md 2.3 on date 11-12-1985 and time 11:34:20 (Italy) in region 4 km W Acceglio (CN)

A magnitude Md 2.3 earthquake occured in region: 4 km W Acceglio (CN), on

  • 11-12-1985 10:34:20 (UTC)
  • 11-12-1985 11:34:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4910, 6.9400 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
Acceglio CN 4 162 162
Prazzo CN 9 170 332
Bellino CN 12 109 441
Canosio CN 12 80 521
Argentera CN 13 83 604
Marmora CN 13 68 672
Elva CN 13 97 769
Stroppo CN 15 103 872
Casteldelfino CN 15 157 1029
Pontechianale CN 16 179 1208
Pietraporzio CN 18 77 1285
Celle di Macra CN 19 100 1385
Macra CN 19 59 1444

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km W of Cuneo (56081 inhabitants)
82 Km SW of Moncalieri (57294 inhabitants)
87 Km SW of Torino (890529 inhabitants)
100 Km NW of Sanremo (54807 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 2.3 1985-12-11
10:34:20
44.491 6.94 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 17869
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-12-11 10:34:20 ± 0.392
Latitude 44.4910 ± 0.0255
Longitude 6.9400 ± 0.0391
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 17869

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) 4201.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.00850
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 17869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:20:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FIN.Z. 1985-12-11T10:34:52.60 10.0 undecidable manual SG 107 0.9435 -0.24 0.6
--.IMP.Z. 1985-12-11T10:34:51.80 10.0 undecidable manual SG 129 0.888 0.82 0.3
--.ROB.Z. 1985-12-11T10:34:45.20 10.0 undecidable manual SG 105 0.6882 0.62 0.5
--.FIN.Z. 1985-12-11T10:34:38.50 10.0 undecidable manual PG 107 0.9435 -0.64 1
--.IMP.Z. 1985-12-11T10:34:37.90 10.0 undecidable manual PG 129 0.888 -0.17 1.8
--.STV.Z. 1985-12-11T10:34:34.70 10.0 undecidable manual SG 130 0.3552 0.56 0.8
--.BN9.Z. 1985-12-11T10:34:33.00 10.0 undecidable manual PG 341 0.5883 0.52 1.5
--.ROB.Z. 1985-12-11T10:34:33.70 10.0 undecidable manual PG 105 0.6882 -0.67 1.1
--.DA9.Z. 1985-12-11T10:34:30.50 10.0 undecidable manual SG 86 0.2109 1.15 0.1
--.STV.Z. 1985-12-11T10:34:28.60 10.0 undecidable manual PG 130 0.3552 0.26 2
--.DA9.Z. 1985-12-11T10:34:25.00 10.0 undecidable manual PG 86 0.2109 -0.58 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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