Earthquake with magnitude of Md 2.2 on date 14-04-1986 and time 14:55:31 (UTC) in region 1 km SW Cairo Montenotte (SV)

A magnitude Md 2.2 earthquake occured in region: 1 km SW Cairo Montenotte (SV), on

  • 14-04-1986 14:55:31 (UTC)
  • 14-04-1986 16:55:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3920, 8.2700 at 8 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
Cairo Montenotte SV 1 13269 13269
Cosseria SV 4 1105 14374
Carcare SV 4 5587 19961
Plodio SV 4 650 20611
Cengio SV 5 3563 24174
Millesimo SV 6 3383 27557
Roccavignale SV 7 752 28309
Pallare SV 7 923 29232
Dego SV 7 1985 31217
Saliceto CN 9 1323 32540
Altare SV 9 2108 34648
Montezemolo CN 10 259 34907
Camerana CN 11 631 35538
Piana Crixia SV 11 788 36326
Mallare SV 11 1146 37472
Gottasecca CN 11 148 37620
Castelnuovo di Ceva CN 12 110 37730
Murialdo SV 12 841 38571
Giusvalla SV 12 441 39012
Bormida SV 13 387 39399
Castelletto Uzzone CN 13 331 39730
Osiglia SV 13 444 40174
Priero CN 14 529 40703
Merana AL 14 189 40892
Pontinvrea SV 15 847 41739
Monesiglio CN 15 645 42384
Prunetto CN 15 451 42835
Sale delle Langhe CN 15 486 43321
Sale San Giovanni CN 15 183 43504
Quiliano SV 16 7232 50736
Mioglia SV 16 526 51262
Perlo CN 16 116 51378
Paroldo CN 16 211 51589
Pareto AL 17 554 52143
Mombarcaro CN 17 268 52411
Gorzegno CN 17 304 52715
Pezzolo Valle Uzzone CN 18 344 53059
Nucetto CN 18 430 53489
Spigno Monferrato AL 18 1050 54539
Stella SV 18 3009 57548
Serole AT 18 123 57671
Ceva CN 19 5782 63453
Levice CN 19 231 63684
Massimino SV 19 113 63797
Bergolo CN 19 71 63868
Vado Ligure SV 19 8336 72204
Rialto SV 19 564 72768
Torresina CN 19 52 72820
Savona SV 19 61345 134165
Vezzi Portio SV 20 809 134974
Orco Feglino SV 20 890 135864
Roascio CN 20 97 135961
Albissola Marina SV 20 5487 141448

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Savona (61345 inhabitants)
53 Km W of Genova (586655 inhabitants)
57 Km S of Asti (76202 inhabitants)
57 Km E of Cuneo (56081 inhabitants)
64 Km SW of Alessandria (93943 inhabitants)
74 Km NE of Sanremo (54807 inhabitants)
82 Km SE of Moncalieri (57294 inhabitants)
89 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 2.2 1986-04-14
14:55:31
44.392 8.27 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 25629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-04-14 14:55:31 ± 0.419
Latitude 44.3920 ± 0.0150
Longitude 8.2700 ± 0.0238
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 25629

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) 2524.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 274
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00753
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 25629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:27:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SOO.Z. 1986-04-14T14:56:00.10 10.0 undecidable manual SG 278 0.8325 -0.78 0.1
--.STV.Z. 1986-04-14T14:55:55.80 10.0 undecidable manual SG 258 0.6882 -0.12 0.7
--.IMP.Z. 1986-04-14T14:55:51.30 10.0 undecidable manual SG 209 0.5439 -0.1 0.9
--.SOO.Z. 1986-04-14T14:55:48.40 10.0 undecidable manual PG 278 0.8325 -0.06 1.7
--.DA9.Z. 1986-04-14T14:55:47.00 10.0 undecidable manual PG 278 0.7326 0.43 1.1
--.STV.Z. 1986-04-14T14:55:46.20 10.0 undecidable manual PG 258 0.6882 0.61 0.7
--.ROB.Z. 1986-04-14T14:55:43.40 10.0 undecidable manual SG 252 0.2997 0.14 0.8
--.IMP.Z. 1986-04-14T14:55:42.70 10.0 undecidable manual PG 209 0.5439 -0.28 1.8
--.FIN.Z. 1986-04-14T14:55:40.00 10.0 undecidable manual SG 193 0.1887 0.78 0.2
--.ROB.Z. 1986-04-14T14:55:37.90 10.0 undecidable manual PG 252 0.2997 -0.38 1.5
--.FIN.Z. 1986-04-14T14:55:35.60 10.0 undecidable manual PG 193 0.1887 -0.35 1.6
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