Earthquake with magnitude of Md 2.2 on date 06-06-1986 and time 12:56:40 (UTC) in region 3 km SW Roccavignale (SV)

A magnitude Md 2.2 earthquake occured in region: 3 km SW Roccavignale (SV), on

  • 06-06-1986 12:56:40 (UTC)
  • 06-06-1986 14:56:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3420, 8.1780 at 7 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
Roccavignale SV 3 752 752
Murialdo SV 3 841 1593
Millesimo SV 4 3383 4976
Castelnuovo di Ceva CN 4 110 5086
Montezemolo CN 5 259 5345
Cosseria SV 6 1105 6450
Plodio SV 6 650 7100
Cengio SV 6 3563 10663
Osiglia SV 7 444 11107
Perlo CN 8 116 11223
Priero CN 8 529 11752
Pallare SV 8 923 12675
Saliceto CN 8 1323 13998
Bormida SV 8 387 14385
Carcare SV 9 5587 19972
Nucetto CN 9 430 20402
Camerana CN 10 631 21033
Massimino SV 10 113 21146
Sale delle Langhe CN 10 486 21632
Cairo Montenotte SV 10 13269 34901
Sale San Giovanni CN 10 183 35084
Mallare SV 11 1146 36230
Bagnasco CN 12 1035 37265
Ceva CN 12 5782 43047
Calizzano SV 13 1475 44522
Paroldo CN 13 211 44733
Altare SV 13 2108 46841
Gottasecca CN 13 148 46989
Battifollo CN 14 219 47208
Monesiglio CN 15 645 47853
Roascio CN 15 97 47950
Torresina CN 15 52 48002
Scagnello CN 15 194 48196
Rialto SV 16 564 48760
Mombarcaro CN 16 268 49028
Dego SV 16 1985 51013
Lisio CN 16 201 51214
Priola CN 16 701 51915
Mombasiglio CN 17 609 52524
Prunetto CN 17 451 52975
Castelletto Uzzone CN 17 331 53306
Bardineto SV 17 756 54062
Igliano CN 17 74 54136
Magliolo SV 18 974 55110
Viola CN 18 391 55501
Calice Ligure SV 18 1730 57231
Orco Feglino SV 18 890 58121
Lesegno CN 18 794 58915
Castellino Tanaro CN 18 312 59227
Monasterolo Casotto CN 19 89 59316
Piana Crixia SV 19 788 60104
San Benedetto Belbo CN 19 179 60283
Gorzegno CN 19 304 60587
Vezzi Portio SV 19 809 61396
Murazzano CN 19 834 62230
Quiliano SV 19 7232 69462
Giustenice SV 20 977 70439
Tovo San Giacomo SV 20 2582 73021
Marsaglia CN 20 245 73266
Garessio CN 20 3244 76510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km W of Savona (61345 inhabitants)
50 Km E of Cuneo (56081 inhabitants)
61 Km W of Genova (586655 inhabitants)
62 Km S of Asti (76202 inhabitants)
66 Km NE of Sanremo (54807 inhabitants)
72 Km SW of Alessandria (93943 inhabitants)
83 Km SE of Moncalieri (57294 inhabitants)
90 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
M 2.5
1986-06-06
12:56:40
44.342 8.178 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 28829
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-06-06 12:56:40 ± 0.076
Latitude 44.3420 ± 0.0037
Longitude 8.1780 ± 0.0053
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 28829

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) 585.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00615
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 28829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:30:14

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 28829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.STV.Z. 1986-06-06T12:57:02.70 10.0 undecidable manual SG 261 0.6105 0.08 0.3
--.IMP.Z. 1986-06-06T12:56:58.00 10.0 undecidable manual SG 205 0.4662 -0.05 0.4
--.DA9.Z. 1986-06-06T12:56:55.00 10.0 undecidable manual PG 284 0.6882 0.46 0
--.STV.Z. 1986-06-06T12:56:52.90 10.0 undecidable manual PG 261 0.6105 -0.31 0.2
--.IMP.Z. 1986-06-06T12:56:50.40 10.0 undecidable manual PG 205 0.4662 -0.18 0.7
--.ROB.Z. 1986-06-06T12:56:49.20 10.0 undecidable manual SG 259 0.2109 0 0.8
--.FIN.Z. 1986-06-06T12:56:46.00 10.0 undecidable manual SG 170 0.1332 -0.05 0.8
--.CK1.Z. 1986-06-06T12:56:45.00 10.0 undecidable manual SG 42 0.0999 -0.04 0.8
--.ROB.Z. 1986-06-06T12:56:45.40 10.0 undecidable manual PG 259 0.2109 -0.07 2.5
--.CK1.Z. 1986-06-06T12:56:43.00 10.0 positive manual PG 42 0.0999 -0.06 2.5
--.FIN.Z. 1986-06-06T12:56:43.80 10.0 positive manual PG 170 0.1332 0.15 1.9
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