Earthquake with magnitude of Md 1.8 on date 08-10-1985 and time 08:02:23 (Italy) in region 1 km N Dego (SV)

A magnitude Md 1.8 earthquake occured in region: 1 km N Dego (SV), on

  • 08-10-1985 07:02:23 (UTC)
  • 08-10-1985 08:02:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.46, 8.31 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
Dego SV 1 1985 1985
Piana Crixia SV 3 788 2773
Merana AL 6 189 2962
Giusvalla SV 7 441 3403
Cairo Montenotte SV 8 13269 16672
Pareto AL 8 554 17226
Mioglia SV 9 526 17752
Spigno Monferrato AL 9 1050 18802
Pontinvrea SV 10 847 19649
Castelletto Uzzone CN 10 331 19980
Serole AT 11 123 20103
Gottasecca CN 11 148 20251
Cengio SV 12 3563 23814
Carcare SV 12 5587 29401
Mombaldone AT 12 209 29610
Cosseria SV 12 1105 30715
Pezzolo Valle Uzzone CN 13 344 31059
Saliceto CN 13 1323 32382
Plodio SV 13 650 33032
Prunetto CN 14 451 33483
Millesimo SV 14 3383 36866
Malvicino AL 14 85 36951
Bergolo CN 14 71 37022
Camerana CN 14 631 37653
Altare SV 14 2108 39761
Sassello SV 14 1777 41538
Roccavignale SV 15 752 42290
Olmo Gentile AT 15 80 42370
Levice CN 15 231 42601
Gorzegno CN 15 304 42905
Roccaverano AT 15 399 43304
Pallare SV 15 923 44227
Denice AL 15 176 44403
Monesiglio CN 15 645 45048
Montechiaro d'Acqui AL 16 560 45608
Cortemilia CN 16 2331 47939
Stella SV 16 3009 50948
Montezemolo CN 16 259 51207
Torre Bormida CN 17 200 51407
Cartosio AL 17 747 52154
Perletto CN 17 292 52446
San Giorgio Scarampi AT 18 122 52568
Mombarcaro CN 18 268 52836
Ponzone AL 18 1051 53887
Feisoglio CN 19 316 54203
Castelnuovo di Ceva CN 19 110 54313
Ponti AL 19 606 54919
Mallare SV 19 1146 56065
Cravanzana CN 19 411 56476
Paroldo CN 19 211 56687
Niella Belbo CN 19 372 57059
Castelletto d'Erro AL 19 148 57207
Sale delle Langhe CN 19 486 57693
Sale San Giovanni CN 20 183 57876
Priero CN 20 529 58405
Castino CN 20 483 58888

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Savona (61345 inhabitants)
49 Km S of Asti (76202 inhabitants)
50 Km W of Genova (586655 inhabitants)
56 Km SW of Alessandria (93943 inhabitants)
61 Km E of Cuneo (56081 inhabitants)
78 Km SE of Moncalieri (57294 inhabitants)
83 Km NE of Sanremo (54807 inhabitants)
84 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
Rev 1000 Md 1.8 1985-10-08
07:02:23
44.46 8.31 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 14329
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-10-08 07:02:23 ± 0.335
Latitude 44.46 ± 0.02
Longitude 8.31 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 14329

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) 3259
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 325
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.0004
Epicentral distance of station farthest from the epicenter (degree) 0.00559
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:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 14329
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:17:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.IMP.Z. 1985-10-08T07:02:45.60 10.0 undecidable manual SG 208 0.0056 -0.23 0.3
--.ROB.Z. 1985-10-08T07:02:37.20 10.0 undecidable manual SG 242 0.0032 0.06 0.6
--.IMP.Z. 1985-10-08T07:02:36.60 10.0 undecidable manual PG 208 0.0056 0.02 1.2
--.ROB.Z. 1985-10-08T07:02:31.50 10.0 undecidable manual PG 242 0.0032 -0.06 1.6
--.CK1.Z. 1985-10-08T07:02:28.50 10.0 undecidable manual SG 208 0.0004 0.62 0
--.CK1.Z. 1985-10-08T07:02:26.00 10.0 positive manual PG 208 0.0004 -0.21 2.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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