Earthquake with magnitude of Md 2.2 on date 17-04-1985 and time 14:32:04 (Italy) in region 2 km E Prazzo (CN)

A magnitude Md 2.2 earthquake occured in region: 2 km E Prazzo (CN), on

  • 17-04-1985 12:32:04 (UTC)
  • 17-04-1985 14:32:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.49, 7.08 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
Prazzo CN 2 170 170
Marmora CN 4 68 238
Stroppo CN 4 103 341
Canosio CN 4 80 421
Elva CN 6 97 518
Acceglio CN 7 162 680
Celle di Macra CN 8 100 780
Macra CN 8 59 839
Bellino CN 11 109 948
Casteldelfino CN 11 157 1105
Sampeyre CN 13 1022 2127
Castelmagno CN 14 66 2193
San Damiano Macra CN 14 430 2623
Argentera CN 15 83 2706
Pontechianale CN 15 179 2885
Cartignano CN 16 190 3075
Pietraporzio CN 17 77 3152
Sambuco CN 17 92 3244
Pradleves CN 18 250 3494
Frassino CN 18 265 3759

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Cuneo (56081 inhabitants)
74 Km SW of Moncalieri (57294 inhabitants)
80 Km SW of Torino (890529 inhabitants)
93 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
Rev 1000 Md 2.2 1985-04-17
12:32:04
44.49 7.08 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 4819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-17 12:32:04 ± 0.322
Latitude 44.49 ± 0.03
Longitude 7.08 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4819

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) 4736.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
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) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.00761
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 4819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FIN.Z. 1985-04-17T12:32:33.00 10.0 undecidable manual SG 109 0.0076 -0.81 0.3
--.IMP.Z. 1985-04-17T12:32:31.90 10.0 undecidable manual SG 134 0.0073 -0.75 0.4
--.BN9.Z. 1985-04-17T12:32:25.50 10.0 undecidable manual SG 333 0.0057 -1.18 0.1
--.ROB.Z. 1985-04-17T12:32:25.00 10.0 undecidable manual SG 108 0.0053 -0.53 0.6
--.IMP.Z. 1985-04-17T12:32:21.10 10.0 undecidable manual PG 134 0.0073 0.34 1.7
--.FIN.Z. 1985-04-17T12:32:21.70 10.0 undecidable manual PG 109 0.0076 0.26 1.7
--.BN9.Z. 1985-04-17T12:32:17.50 10.0 undecidable manual PG 333 0.0057 0.18 2.1
--.ROB.Z. 1985-04-17T12:32:17.60 10.0 undecidable manual PG 108 0.0053 0.94 0.7
--.STV.Z. 1985-04-17T12:32:15.10 10.0 undecidable manual SG 143 0.0027 -0.89 0.3
--.STV.Z. 1985-04-17T12:32:11.10 10.0 undecidable manual PG 143 0.0027 -0.05 2.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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