Earthquake with magnitude of Md 1.8 on date 12-09-1989 and time 10:25:30 (Italy) in region 2 km NE Entracque (CN)

A magnitude Md 1.8 earthquake occured in region: 2 km NE Entracque (CN), on

  • 12-09-1989 08:25:30 (UTC)
  • 12-09-1989 10:25:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2550, 7.4170 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
Entracque CN 2 774 774
Valdieri CN 3 935 1709
Roaschia CN 4 107 1816
Moiola CN 8 234 2050
Roccavione CN 9 2761 4811
Robilante CN 9 2306 7117
Gaiola CN 9 582 7699
Vernante CN 9 1178 8877
Valloriate CN 10 109 8986
Roccasparvera CN 10 741 9727
Borgo San Dalmazzo CN 10 12468 22195
Rittana CN 11 109 22304
Demonte CN 12 2003 24307
Vignolo CN 13 2600 26907
Boves CN 14 9835 36742
Limone Piemonte CN 14 1485 38227
Cervasca CN 15 5013 43240
Bernezzo CN 15 4104 47344
Aisone CN 17 248 47592
Valgrana CN 18 786 48378
Peveragno CN 18 5543 53921
Caraglio CN 18 6836 60757
Monterosso Grana CN 19 505 61262
Cuneo CN 19 56081 117343

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SW of Cuneo (56081 inhabitants)
57 Km NW of Sanremo (54807 inhabitants)
85 Km W of Savona (61345 inhabitants)
86 Km S of Moncalieri (57294 inhabitants)
94 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 1.8 1989-09-12
08:25:30
44.255 7.417 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 99309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-12 08:25:30 ± 0.092
Latitude 44.2550 ± 0.0139
Longitude 7.4170 ± 0.0140
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99309

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) 1902.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00024
Epicentral distance of station farthest from the epicenter (degree) 0.00429
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 99309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:32:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ROB.Z. 1989-09-12T08:25:43.78 10.0 undecidable manual SG 81 0.3219 0.33 0.4
--.PZZ.Z. 1989-09-12T08:25:43.43 10.0 undecidable manual SG 318 0.333 -0.24 0.4
--.DOI.Z. 1989-09-12T08:25:41.50 10.0 undecidable manual SG 333 0.2664 -0.26 0.4
--.IMI.Z. 1989-09-12T08:25:40.91 10.0 undecidable manual PG 134 0.4773 -0.1 1.3
--.PZZ.Z. 1989-09-12T08:25:38.72 10.0 undecidable manual PG 318 0.333 0.45 0.7
--.ROB.Z. 1989-09-12T08:25:38.20 10.0 undecidable manual PG 81 0.3219 0.06 1.9
--.DOI.Z. 1989-09-12T08:25:37.00 10.0 undecidable manual PG 333 0.2664 -0.17 1.5
--.STV.Z. 1989-09-12T08:25:35.60 10.0 undecidable manual SG 267 0.0555 0.04 0.9
--.STV.Z. 1989-09-12T08:25:33.63 10.0 undecidable manual PG 267 0.0555 0.36 1
--.ENR.Z. 1989-09-12T08:25:33.95 10.0 undecidable manual SG 174 0.0222 -0.46 0.2
--.ENR.Z. 1989-09-12T08:25:32.81 10.0 undecidable manual PG 174 0.0222 -0.11 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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