Earthquake with magnitude of Md 2.2 on date 18-04-1985 and time 14:42:43 (Italy) in region 3 km W Vernante (CN)

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

  • 18-04-1985 12:42:43 (UTC)
  • 18-04-1985 14:42:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.25, 7.5 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
Vernante CN 3 1178 1178
Roaschia CN 4 107 1285
Robilante CN 5 2306 3591
Roccavione CN 7 2761 6352
Entracque CN 8 774 7126
Limone Piemonte CN 8 1485 8611
Valdieri CN 9 935 9546
Borgo San Dalmazzo CN 9 12468 22014
Boves CN 10 9835 31849
Roccasparvera CN 11 741 32590
Moiola CN 12 234 32824
Gaiola CN 12 582 33406
Vignolo CN 13 2600 36006
Peveragno CN 13 5543 41549
Rittana CN 14 109 41658
Valloriate CN 14 109 41767
Cervasca CN 15 5013 46780
Bernezzo CN 16 4104 50884
Cuneo CN 17 56081 106965
Chiusa di Pesio CN 17 3676 110641
Beinette CN 18 3423 114064
Demonte CN 18 2003 116067
Caraglio CN 20 6836 122903

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km S of Cuneo (56081 inhabitants)
53 Km NW of Sanremo (54807 inhabitants)
79 Km W of Savona (61345 inhabitants)
85 Km S of Moncalieri (57294 inhabitants)
91 Km SW of Asti (76202 inhabitants)
93 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 1985-04-18
12:42:43
44.25 7.5 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 4879
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-18 12:42:43 ± 0.354
Latitude 44.25 ± 0.02
Longitude 7.50 ± 0.03
Depth (km) 10 ± 11 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4879

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) 2972.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.0089
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 4879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BN9.Z. 1985-04-18T12:43:16.00 10.0 undecidable manual SG 324 0.0089 -1.3 0
--.BN9.Z. 1985-04-18T12:43:03.50 10.0 undecidable manual PG 324 0.0089 0.46 0.8
--.FIN.Z. 1985-04-18T12:43:01.00 10.0 undecidable manual SG 94 0.0045 -0.84 0.2
--.IMP.Z. 1985-04-18T12:42:59.60 10.0 undecidable manual SG 139 0.0039 0.1 0.8
--.CK1.Z. 1985-04-18T12:42:56.00 10.0 undecidable manual PG 72 0.0052 0.54 1
--.ROB.Z. 1985-04-18T12:42:54.80 10.0 undecidable manual SG 78 0.0024 0.57 0.4
--.FIN.Z. 1985-04-18T12:42:53.60 10.0 undecidable manual PG 94 0.0045 -0.5 1.1
--.IMP.Z. 1985-04-18T12:42:52.60 10.0 undecidable manual PG 139 0.0039 -0.16 1.9
--.STV.Z. 1985-04-18T12:42:49.30 10.0 undecidable manual SG 270 0.0011 -0.08 0.8
--.ROB.Z. 1985-04-18T12:42:49.60 10.0 undecidable manual PG 78 0.0024 -0.11 2
--.STV.Z. 1985-04-18T12:42:47.00 10.0 undecidable manual PG 270 0.0011 0.09 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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