Earthquake with magnitude of Md 1.7 on date 16-10-1985 and time 12:21:52 (Italy) in region 2 km N Cengio (SV)

A magnitude Md 1.7 earthquake occured in region: 2 km N Cengio (SV), on

  • 16-10-1985 11:21:52 (UTC)
  • 16-10-1985 12:21:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4100, 8.2030 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
Cengio SV 2 3563 3563
Saliceto CN 3 1323 4886
Millesimo SV 5 3383 8269
Camerana CN 5 631 8900
Cosseria SV 5 1105 10005
Roccavignale SV 5 752 10757
Cairo Montenotte SV 6 13269 24026
Montezemolo CN 6 259 24285
Gottasecca CN 7 148 24433
Plodio SV 7 650 25083
Castelnuovo di Ceva CN 8 110 25193
Carcare SV 9 5587 30780
Monesiglio CN 9 645 31425
Priero CN 9 529 31954
Castelletto Uzzone CN 9 331 32285
Sale delle Langhe CN 10 486 32771
Dego SV 10 1985 34756
Sale San Giovanni CN 10 183 34939
Prunetto CN 10 451 35390
Paroldo CN 11 211 35601
Pallare SV 11 923 36524
Murialdo SV 11 841 37365
Mombarcaro CN 11 268 37633
Piana Crixia SV 12 788 38421
Perlo CN 13 116 38537
Gorzegno CN 13 304 38841
Torresina CN 14 52 38893
Ceva CN 14 5782 44675
Nucetto CN 14 430 45105
Altare SV 14 2108 47213
Osiglia SV 14 444 47657
Merana AL 14 189 47846
Roascio CN 14 97 47943
San Benedetto Belbo CN 15 179 48122
Pezzolo Valle Uzzone CN 15 344 48466
Levice CN 15 231 48697
Bormida SV 15 387 49084
Mallare SV 15 1146 50230
Niella Belbo CN 15 372 50602
Igliano CN 16 74 50676
Bergolo CN 16 71 50747
Giusvalla SV 16 441 51188
Massimino SV 16 113 51301
Murazzano CN 16 834 52135
Serole AT 17 123 52258
Feisoglio CN 17 316 52574
Bossolasco CN 17 679 53253
Bagnasco CN 17 1035 54288
Torre Bormida CN 18 200 54488
Castellino Tanaro CN 18 312 54800
Marsaglia CN 18 245 55045
Bonvicino CN 18 92 55137
Spigno Monferrato AL 18 1050 56187
Battifollo CN 18 219 56406
Pareto AL 19 554 56960
Lesegno CN 19 794 57754
Mioglia SV 19 526 58280
Pontinvrea SV 19 847 59127
Mombasiglio CN 19 609 59736
Scagnello CN 19 194 59930
Cortemilia CN 19 2331 62261
Cravanzana CN 19 411 62672
Olmo Gentile AT 20 80 62752

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Savona (61345 inhabitants)
52 Km E of Cuneo (56081 inhabitants)
55 Km S of Asti (76202 inhabitants)
58 Km W of Genova (586655 inhabitants)
65 Km SW of Alessandria (93943 inhabitants)
73 Km NE of Sanremo (54807 inhabitants)
78 Km SE of Moncalieri (57294 inhabitants)
85 Km SE of Torino (890529 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 1.7 1985-10-16
11:21:52
44.41 8.203 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 14759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-10-16 11:21:52 ± 0.128
Latitude 44.4100 ± 0.0060
Longitude 8.2030 ± 0.0062
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 14759

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) 832.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.00227
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 14759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:17:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ROB.Z. 1985-10-16T11:22:02.80 10.0 undecidable manual SG 245 0.2553 0.03 0.6
--.FIN.Z. 1985-10-16T11:22:01.00 10.0 undecidable manual SG 178 0.1998 0.09 0.5
--.ROB.Z. 1985-10-16T11:21:58.40 10.0 undecidable manual PG 245 0.2553 -0.04 1.6
--.FIN.Z. 1985-10-16T11:21:57.30 10.0 undecidable manual PG 178 0.1998 -0.07 1.5
--.CK1.Z. 1985-10-16T11:21:56.50 10.0 undecidable manual SG 79 0.0555 -0.1 0.8
--.CK1.Z. 1985-10-16T11:21:55.00 10.0 undecidable manual PG 79 0.0555 0.12 1.2
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