Earthquake with magnitude of M 1.5 on date 18-09-1989 and time 13:32:59 (Italy) in region 3 km SE Gaiola (CN)

A magnitude M 1.5 earthquake occured in region: 3 km SE Gaiola (CN), on

  • 18-09-1989 11:32:59 (UTC)
  • 18-09-1989 13:32:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3140, 7.4340 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
Gaiola CN 3 582 582
Roccasparvera CN 3 741 1323
Moiola CN 4 234 1557
Roccavione CN 4 2761 4318
Borgo San Dalmazzo CN 5 12468 16786
Rittana CN 5 109 16895
Valdieri CN 5 935 17830
Roaschia CN 5 107 17937
Valloriate CN 5 109 18046
Vignolo CN 6 2600 20646
Robilante CN 7 2306 22952
Cervasca CN 8 5013 27965
Bernezzo CN 8 4104 32069
Entracque CN 9 774 32843
Boves CN 10 9835 42678
Demonte CN 11 2003 44681
Vernante CN 11 1178 45859
Valgrana CN 12 786 46645
Caraglio CN 12 6836 53481
Cuneo CN 13 56081 109562
Monterosso Grana CN 14 505 110067
Montemale di Cuneo CN 15 241 110308
Peveragno CN 15 5543 115851
Pradleves CN 17 250 116101
Limone Piemonte CN 17 1485 117586
Aisone CN 17 248 117834
Beinette CN 18 3423 121257
Dronero CN 18 7035 128292
Villar San Costanzo CN 19 1547 129839
Chiusa di Pesio CN 20 3676 133515
Roccabruna CN 20 1585 135100

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Cuneo (56081 inhabitants)
62 Km NW of Sanremo (54807 inhabitants)
79 Km S of Moncalieri (57294 inhabitants)
83 Km W of Savona (61345 inhabitants)
87 Km S of Torino (890529 inhabitants)
89 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
M 1.5 1989-09-18
11:32:59
44.314 7.434 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 99629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-18 11:32:59 ± 0.25
Latitude 44.3140 ± 0.0188
Longitude 7.4340 ± 0.0212
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99629

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) 2682.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00502
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

M:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 99629
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
--.FIN.Z. 1989-09-18T11:33:21.78 10.0 undecidable manual SG 100 0.555 1.95 0
--.FIN.Z. 1989-09-18T11:33:11.12 10.0 undecidable manual PG 100 0.555 -0.25 1.2
--.PZZ.Z. 1989-09-18T11:33:11.43 10.0 undecidable manual SG 308 0.2997 -0.07 0.7
--.ROB.Z. 1989-09-18T11:33:10.88 10.0 undecidable manual SG 92 0.3108 -0.91 0.2
--.ROB.Z. 1989-09-18T11:33:06.39 10.0 undecidable manual PG 92 0.3108 -0.34 1.5
--.PZZ.Z. 1989-09-18T11:33:06.61 10.0 undecidable manual PG 308 0.2997 0.05 1.8
--.STV.Z. 1989-09-18T11:33:04.55 10.0 undecidable manual SG 229 0.0888 -0.37 0.6
--.ENR.Z. 1989-09-18T11:33:04.10 10.0 undecidable manual SG 186 0.0777 -0.55 0.5
--.STV.Z. 1989-09-18T11:33:03.23 10.0 undecidable manual PG 229 0.0888 0.48 1.4
--.ENR.Z. 1989-09-18T11:33:02.64 10.0 undecidable manual PG 186 0.0777 0.04 1.9
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