Earthquake with magnitude of Md 1.7 on date 11-08-1986 and time 20:34:58 (Italy) in region 2 km SE Cartosio (AL)

A magnitude Md 1.7 earthquake occured in region: 2 km SE Cartosio (AL), on

  • 11-08-1986 18:34:58 (UTC)
  • 11-08-1986 20:34:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5800, 8.4300 at 16 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
Cartosio AL 2 747 747
Malvicino AL 3 85 832
Ponzone AL 3 1051 1883
Montechiaro d'Acqui AL 4 560 2443
Castelletto d'Erro AL 6 148 2591
Cavatore AL 6 291 2882
Morbello AL 7 402 3284
Melazzo AL 7 1325 4609
Ponti AL 7 606 5215
Grognardo AL 8 259 5474
Denice AL 8 176 5650
Pareto AL 8 554 6204
Mombaldone AT 8 209 6413
Spigno Monferrato AL 8 1050 7463
Mioglia SV 10 526 7989
Terzo AL 10 923 8912
Bistagno AL 10 1887 10799
Visone AL 11 1194 11993
Cassinelle AL 11 914 12907
Monastero Bormida AT 11 931 13838
Acqui Terme AL 11 19896 33734
Sassello SV 12 1777 35511
Prasco AL 12 521 36032
Sessame AT 12 271 36303
Merana AL 12 189 36492
Roccaverano AT 13 399 36891
Morsasco AL 13 679 37570
Montabone AT 14 333 37903
Serole AT 14 123 38026
Cremolino AL 14 1086 39112
Piana Crixia SV 14 788 39900
Bubbio AT 14 893 40793
Molare AL 14 2181 42974
Olmo Gentile AT 14 80 43054
Giusvalla SV 15 441 43495
Pontinvrea SV 15 847 44342
San Giorgio Scarampi AT 15 122 44464
Strevi AL 15 2019 46483
Trisobbio AL 16 655 47138
Castel Rocchero AT 16 395 47533
Rocchetta Palafea AT 16 338 47871
Cassinasco AT 16 611 48482
Castel Boglione AT 16 609 49091
Orsara Bormida AL 16 424 49515
Tiglieto GE 16 546 50061
Alice Bel Colle AL 16 766 50827
Urbe SV 17 700 51527
Cessole AT 17 403 51930
Loazzolo AT 17 359 52289
Montaldo Bormida AL 17 664 52953
Perletto CN 17 292 53245
Vesime AT 17 622 53867
Dego SV 17 1985 55852
Ricaldone AL 17 684 56536
Rivalta Bormida AL 18 1446 57982
Carpeneto AL 18 977 58959
Ovada AL 18 11477 70436
Cortemilia CN 19 2331 72767
Castelletto Molina AT 19 180 72947
Calamandrana AT 19 1761 74708
Belforte Monferrato AL 19 515 75223
Pezzolo Valle Uzzone CN 19 344 75567
Quaranti AT 19 183 75750
Rossiglione GE 19 2779 78529
Canelli AT 19 10485 89014
Fontanile AT 19 567 89581
Bergolo CN 20 71 89652

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of Savona (61345 inhabitants)
40 Km SE of Asti (76202 inhabitants)
40 Km SW of Alessandria (93943 inhabitants)
44 Km W of Genova (586655 inhabitants)
73 Km E of Cuneo (56081 inhabitants)
75 Km SE of Moncalieri (57294 inhabitants)
81 Km SE of Torino (890529 inhabitants)
89 Km SW of Pavia (72576 inhabitants)
89 Km SW of Vigevano (63310 inhabitants)
98 Km S of Novara (104380 inhabitants)
99 Km NE of Sanremo (54807 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 1986-08-11
18:34:58
44.58 8.43 16 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 32679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-08-11 18:34:58 ± 0.402
Latitude 44.5800 ± 0.0223
Longitude 8.4300 ± 0.0259
Depth (km) 16 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 32679

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) 3218.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 315
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) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00761
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 32679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:33:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.STV.Z. 1986-08-11T18:35:26.90 10.0 undecidable manual SG 247 0.8436 -0.49 0.2
--.IMP.Z. 1986-08-11T18:35:25.20 10.0 undecidable manual SG 210 0.7659 0.51 0.1
--.STV.Z. 1986-08-11T18:35:15.20 10.0 undecidable manual PG 247 0.8436 0.19 1.4
--.ROB.Z. 1986-08-11T18:35:15.70 10.0 undecidable manual SG 235 0.4773 0.02 0.9
--.IMP.Z. 1986-08-11T18:35:13.70 10.0 undecidable manual PG 210 0.7659 0.25 1.3
--.FIN.Z. 1986-08-11T18:35:12.70 10.0 undecidable manual SG 202 0.3996 -0.43 0.3
--.ROB.Z. 1986-08-11T18:35:08.30 10.0 undecidable manual PG 235 0.4773 0.04 2.2
--.CKI.Z. 1986-08-11T18:35:07.00 10.0 undecidable manual SG 213 0.1887 0.3 0.5
--.FIN.Z. 1986-08-11T18:35:06.40 10.0 undecidable manual PG 202 0.3996 -0.38 0.9
--.CKI.Z. 1986-08-11T18:35:03.00 10.0 undecidable manual PG 213 0.1887 -0.06 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