Earthquake with magnitude of Md 1.5 on date 07-09-1989 and time 18:54:12 (UTC) in region 4 km NW Valloriate (CN)

A magnitude Md 1.5 earthquake occured in region: 4 km NW Valloriate (CN), on

  • 07-09-1989 18:54:12 (UTC)
  • 07-09-1989 20:54:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3580, 7.3360 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
Valloriate CN 4 109 109
Rittana CN 5 109 218
Demonte CN 6 2003 2221
Monterosso Grana CN 6 505 2726
Moiola CN 6 234 2960
Gaiola CN 6 582 3542
Valgrana CN 7 786 4328
Pradleves CN 8 250 4578
Roccasparvera CN 9 741 5319
Bernezzo CN 9 4104 9423
Montemale di Cuneo CN 10 241 9664
Caraglio CN 10 6836 16500
Valdieri CN 10 935 17435
Aisone CN 10 248 17683
Vignolo CN 11 2600 20283
Cervasca CN 11 5013 25296
Castelmagno CN 11 66 25362
Dronero CN 12 7035 32397
Borgo San Dalmazzo CN 13 12468 44865
Roccavione CN 13 2761 47626
Roccabruna CN 13 1585 49211
Roaschia CN 14 107 49318
Vinadio CN 14 644 49962
Entracque CN 14 774 50736
Cartignano CN 14 190 50926
Villar San Costanzo CN 15 1547 52473
Robilante CN 16 2306 54779
San Damiano Macra CN 16 430 55209
Boves CN 18 9835 65044
Cuneo CN 18 56081 121125
Celle di Macra CN 19 100 121225

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Cuneo (56081 inhabitants)
70 Km NW of Sanremo (54807 inhabitants)
77 Km SW of Moncalieri (57294 inhabitants)
84 Km SW of Torino (890529 inhabitants)
91 Km W of Savona (61345 inhabitants)
92 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 1.5
M 1.6
1989-09-07
18:54:12
44.358 7.336 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 99009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-07 18:54:12 ± 0.133
Latitude 44.3580 ± 0.0110
Longitude 7.3360 ± 0.0245
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99009

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) 2301.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00348
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 99009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:32:30

M:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 99009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ROB.Z. 1989-09-07T18:54:27.63 10.0 undecidable manual SG 98 0.3885 -0.12 0.5
--.ROB.Z. 1989-09-07T18:54:21.52 10.0 undecidable manual PG 98 0.3885 0.02 1.5
--.PZZ.Z. 1989-09-07T18:54:21.48 10.0 undecidable manual SG 311 0.2109 -0.49 0.2
--.DOI.Z. 1989-09-07T18:54:19.50 10.0 undecidable manual SG 336 0.1554 -0.18 0.4
--.PZZ.Z. 1989-09-07T18:54:18.80 10.0 undecidable manual PG 311 0.2109 -0.09 2
--.ENR.Z. 1989-09-07T18:54:18.78 10.0 undecidable manual SG 155 0.1443 -0.41 0.3
--.DOI.Z. 1989-09-07T18:54:17.40 10.0 undecidable manual PG 336 0.1554 0.55 0.5
--.STV.Z. 1989-09-07T18:54:17.83 10.0 undecidable manual SG 182 0.0999 -0.09 0.9
--.STV.Z. 1989-09-07T18:54:16.70 10.0 undecidable manual PG 182 0.0999 0.23 1.4
--.ENR.Z. 1989-09-07T18:54:16.52 10.0 undecidable manual PG 155 0.1443 -0.04 2.2
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