Earthquake with magnitude of Md 1.6 on date 12-09-1989 and time 13:59:55 (Italy) in region 2 km W Valdieri (CN)

A magnitude Md 1.6 earthquake occured in region: 2 km W Valdieri (CN), on

  • 12-09-1989 11:59:55 (UTC)
  • 12-09-1989 13:59:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2760, 7.3780 at 5 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
Valdieri CN 2 935 935
Entracque CN 4 774 1709
Moiola CN 5 234 1943
Roaschia CN 6 107 2050
Valloriate CN 7 109 2159
Gaiola CN 7 582 2741
Demonte CN 8 2003 4744
Rittana CN 9 109 4853
Roccasparvera CN 9 741 5594
Roccavione CN 9 2761 8355
Borgo San Dalmazzo CN 11 12468 20823
Robilante CN 11 2306 23129
Vignolo CN 12 2600 25729
Vernante CN 13 1178 26907
Aisone CN 13 248 27155
Bernezzo CN 14 4104 31259
Cervasca CN 14 5013 36272
Valgrana CN 15 786 37058
Boves CN 15 9835 46893
Monterosso Grana CN 16 505 47398
Caraglio CN 16 6836 54234
Vinadio CN 17 644 54878
Pradleves CN 18 250 55128
Limone Piemonte CN 18 1485 56613
Montemale di Cuneo CN 18 241 56854
Cuneo CN 19 56081 112935
Castelmagno CN 20 66 113001

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SW of Cuneo (56081 inhabitants)
60 Km NW of Sanremo (54807 inhabitants)
84 Km SW of Moncalieri (57294 inhabitants)
88 Km W of Savona (61345 inhabitants)
92 Km S of Torino (890529 inhabitants)
95 Km SW of Asti (76202 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 1.6 1989-09-12
11:59:55
44.276 7.378 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 99319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-12 11:59:55 ± 0.061
Latitude 44.2760 ± 0.0037
Longitude 7.3780 ± 0.0058
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99319

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) 621.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
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) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00316
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:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 99319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:32:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ROB.Z. 1989-09-12T12:00:08.74 10.0 undecidable manual SG 85 0.3552 -0.32 0.1
--.PZZ.Z. 1989-09-12T12:00:06.69 10.0 undecidable manual SG 319 0.2997 -0.37 0
--.DOI.Z. 1989-09-12T12:00:05.00 10.0 undecidable manual SG 337 0.2442 0.07 0.7
--.ROB.Z. 1989-09-12T12:00:03.31 10.0 undecidable manual PG 85 0.3552 0.08 1.4
--.PZZ.Z. 1989-09-12T12:00:02.70 10.0 undecidable manual PG 319 0.2997 -0.01 1.8
--.DOI.Z. 1989-09-12T12:00:01.00 10.0 undecidable manual PG 337 0.2442 0.15 1.3
--.STV.Z. 1989-09-12T11:59:57.56 10.0 undecidable manual SG 235 0.0333 -0.1 0.7
--.ENR.Z. 1989-09-12T11:59:57.87 10.0 undecidable manual SG 148 0.0555 -0.21 0.3
--.ENR.Z. 1989-09-12T11:59:57.50 10.0 undecidable manual PG 148 0.0555 0.15 1.4
--.STV.Z. 1989-09-12T11:59:56.64 10.0 undecidable manual PG 235 0.0333 -0.01 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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