Earthquake with magnitude of Md 2.2 on date 22-04-1985 and time 12:04:28 (Italy) in region 4 km SW Vernante (CN)

A magnitude Md 2.2 earthquake occured in region: 4 km SW Vernante (CN), on

  • 22-04-1985 10:04:28 (UTC)
  • 22-04-1985 12:04:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2170, 7.5000 at 8 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 4 1178 1178
Limone Piemonte CN 6 1485 2663
Roaschia CN 7 107 2770
Entracque CN 9 774 3544
Robilante CN 9 2306 5850
Valdieri CN 11 935 6785
Roccavione CN 11 2761 9546
Borgo San Dalmazzo CN 13 12468 22014
Boves CN 13 9835 31849
Moiola CN 15 234 32083
Roccasparvera CN 15 741 32824
Gaiola CN 15 582 33406
Peveragno CN 16 5543 38949
Vignolo CN 16 2600 41549
Valloriate CN 17 109 41658
Rittana CN 17 109 41767
Cervasca CN 19 5013 46780
Chiusa di Pesio CN 19 3676 50456
Demonte CN 20 2003 52459
Bernezzo CN 20 4104 56563

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km S of Cuneo (56081 inhabitants)
50 Km NW of Sanremo (54807 inhabitants)
79 Km W of Savona (61345 inhabitants)
89 Km S of Moncalieri (57294 inhabitants)
94 Km SW of Asti (76202 inhabitants)
96 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
Bulletin
Rev1000
Md 2.2 1985-04-22
10:04:28
44.217 7.5 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 5289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-22 10:04:28 ± 0.506
Latitude 44.2170 ± 0.0825
Longitude 7.5000 ± 0.0236
Depth (km) 8 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 5289

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) 9363.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00915
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 2
Type of magnitude Md
Reference to an origin 5289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BN9.Z. 1985-04-22T10:05:02.00 10.0 undecidable manual SG 325 1.0101 -1.77 0
--.BN9.Z. 1985-04-22T10:04:50.50 10.0 undecidable manual PG 325 1.0101 1.52 0.1
--.CK1.Z. 1985-04-22T10:04:49.00 10.0 undecidable manual SG 69 0.5883 -1.07 0.2
--.FIN.Z. 1985-04-22T10:04:47.00 10.0 undecidable manual SG 90 0.4995 -0.35 0.6
--.CK1.Z. 1985-04-22T10:04:41.50 10.0 undecidable manual PG 69 0.5883 0.43 1.3
--.ROB.Z. 1985-04-22T10:04:40.00 10.0 undecidable manual SG 72 0.2775 0.07 0.7
--.FIN.Z. 1985-04-22T10:04:39.20 10.0 undecidable manual PG 90 0.4995 -0.3 1.5
--.ROB.Z. 1985-04-22T10:04:35.40 10.0 undecidable manual PG 72 0.2775 0.18 1.6
--.STV.Z. 1985-04-22T10:04:34.00 10.0 undecidable manual SG 285 0.1221 -0.41 0.8
--.STV.Z. 1985-04-22T10:04:31.90 10.0 positive manual PG 285 0.1221 -0.14 3.2
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