Earthquake with magnitude of M 1.9 on date 20-06-1986 and time 11:27:59 (Italy) in region 2 km W Zuccarello (SV)

A magnitude M 1.9 earthquake occured in region: 2 km W Zuccarello (SV), on

  • 20-06-1986 09:27:59 (UTC)
  • 20-06-1986 11:27:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1190, 8.0980 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
Zuccarello SV 2 309 309
Castelbianco SV 2 330 639
Castelvecchio di Rocca Barbena SV 2 145 784
Erli SV 2 245 1029
Arnasco SV 5 645 1674
Cisano sul Neva SV 5 2085 3759
Vendone SV 5 388 4147
Nasino SV 6 207 4354
Balestrino SV 6 595 4949
Onzo SV 7 219 5168
Ortovero SV 7 1586 6754
Alto CN 8 128 6882
Aquila d'Arroscia IM 8 166 7048
Bardineto SV 9 756 7804
Villanova d'Albenga SV 9 2657 10461
Toirano SV 9 2644 13105
Ranzo IM 9 557 13662
Garlenda SV 9 1254 14916
Boissano SV 10 2492 17408
Garessio CN 10 3244 20652
Casanova Lerrone SV 10 749 21401
Ceriale SV 11 5561 26962
Caprauna CN 11 104 27066
Borghetto d'Arroscia IM 11 456 27522
Borghetto Santo Spirito SV 12 4948 32470
Albenga SV 12 24213 56683
Loano SV 13 11407 68090
Calizzano SV 13 1475 69565
Stellanello SV 13 808 70373
Giustenice SV 13 977 71350
Vessalico IM 13 282 71632
Testico SV 14 196 71828
Alassio SV 14 10934 82762
Magliolo SV 15 974 83736
Armo IM 15 111 83847
Ormea CN 15 1617 85464
Tovo San Giacomo SV 15 2582 88046
Pietra Ligure SV 15 8992 97038
Priola CN 15 701 97739
Cesio IM 16 283 98022
Pieve di Teco IM 17 1338 99360
Laigueglia SV 17 1810 101170
Villa Faraldi IM 17 444 101614
Borgio Verezzi SV 17 2205 103819
Caravonica IM 18 282 104101
Andora SV 18 7552 111653
Rialto SV 18 564 112217
Chiusanico IM 18 607 112824
Calice Ligure SV 19 1730 114554
Pornassio IM 19 685 115239
Chiusavecchia IM 19 577 115816
Diano Arentino IM 19 722 116538
Lucinasco IM 20 272 116810
Osiglia SV 20 444 117254
Borgomaro IM 20 865 118119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Savona (61345 inhabitants)
41 Km NE of Sanremo (54807 inhabitants)
53 Km SE of Cuneo (56081 inhabitants)
74 Km W of Genova (586655 inhabitants)
87 Km S of Asti (76202 inhabitants)
98 Km SW of Alessandria (93943 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
M 1.9 1986-06-20
09:27:59
44.119 8.098 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 29809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-06-20 09:27:59 ± 0.085
Latitude 44.1190 ± 0.0056
Longitude 8.0980 ± 0.0085
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 29809

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) 921.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
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) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00219
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

M:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 29809
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
--.ROB.Z. 1986-06-20T09:28:08.80 10.0 undecidable manual SG 318 0.2442 -0.19 0.4
--.IMP.Z. 1986-06-20T09:28:08.90 10.0 undecidable manual SG 216 0.2442 -0.3 0.1
--.IMP.Z. 1986-06-20T09:28:05.10 10.0 undecidable manual PG 216 0.2442 0.11 1.5
--.ROB.Z. 1986-06-20T09:28:05.00 10.0 undecidable manual PG 318 0.2442 0.13 1.4
--.FIN.Z. 1986-06-20T09:28:04.80 10.0 undecidable manual SG 41 0.1221 -0.2 0.4
--.FIN.Z. 1986-06-20T09:28:02.60 10.0 undecidable manual PG 41 0.1221 0.04 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