Earthquake with magnitude of Md 2.2 on date 04-04-1985 and time 11:13:43 (Italy) in region 3 km S Roaschia (CN)

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

  • 04-04-1985 09:13:43 (UTC)
  • 04-04-1985 11:13:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.24, 7.47 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
Roaschia CN 4 107 107
Vernante CN 5 1178 1285
Entracque CN 6 774 2059
Robilante CN 7 2306 4365
Valdieri CN 7 935 5300
Roccavione CN 8 2761 8061
Limone Piemonte CN 10 1485 9546
Borgo San Dalmazzo CN 10 12468 22014
Moiola CN 11 234 22248
Roccasparvera CN 12 741 22989
Gaiola CN 12 582 23571
Boves CN 12 9835 33406
Valloriate CN 13 109 33515
Vignolo CN 13 2600 36115
Rittana CN 13 109 36224
Peveragno CN 16 5543 41767
Cervasca CN 16 5013 46780
Demonte CN 16 2003 48783
Bernezzo CN 17 4104 52887
Cuneo CN 18 56081 108968
Chiusa di Pesio CN 19 3676 112644
Beinette CN 20 3423 116067
Caraglio CN 20 6836 122903

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SW of Cuneo (56081 inhabitants)
53 Km NW of Sanremo (54807 inhabitants)
81 Km W of Savona (61345 inhabitants)
86 Km S of Moncalieri (57294 inhabitants)
94 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
Rev 1000 Md 2.2 1985-04-04
09:13:43
44.24 7.47 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 4009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-04 09:13:43 ± 0.074
Latitude 44.24 ± 0.01
Longitude 7.47 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4009

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) 1020.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00882
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 4009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BN9.Z. 1985-04-04T09:14:17.00 10.0 undecidable manual SG 325 0.0088 -0.11 0.5
--.BN9.Z. 1985-04-04T09:14:03.00 10.0 undecidable manual PG 325 0.0088 0.07 1.3
--.FIN.Z. 1985-04-04T09:14:02.70 10.0 undecidable manual SG 93 0.0048 0.2 0.3
--.IMP.Z. 1985-04-04T09:13:59.60 10.0 undecidable manual SG 136 0.004 -0.14 0.8
--.ROB.Z. 1985-04-04T09:13:55.00 10.0 undecidable manual SG 77 0.0026 0.05 0.9
--.FIN.Z. 1985-04-04T09:13:54.00 10.0 undecidable manual PG 93 0.0048 -0.49 0.3
--.IMP.Z. 1985-04-04T09:13:53.00 10.0 undecidable manual PG 136 0.004 0.11 1.6
--.ROB.Z. 1985-04-04T09:13:50.10 10.0 undecidable manual PG 77 0.0026 -0.03 2.1
--.STV.Z. 1985-04-04T09:13:49.00 10.0 undecidable manual SG 275 0.0009 0.26 0.7
--.STV.Z. 1985-04-04T09:13:46.40 10.0 undecidable manual PG 275 0.0009 -0.15 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download