Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 20-06-1985 and time 11:48:40 (Italy) in region 2 km SW Zuccarello (SV)

A magnitude Md 2.0 earthquake occured in region: 2 km SW Zuccarello (SV), on

  • 20-06-1985 09:48:40 (UTC)
  • 20-06-1985 11:48:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0980, 8.1070 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.

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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
Arnasco SV 2 645 954
Castelbianco SV 3 330 1284
Cisano sul Neva SV 3 2085 3369
Vendone SV 4 388 3757
Castelvecchio di Rocca Barbena SV 4 145 3902
Erli SV 4 245 4147
Ortovero SV 5 1586 5733
Onzo SV 5 219 5952
Balestrino SV 6 595 6547
Villanova d'Albenga SV 6 2657 9204
Nasino SV 7 207 9411
Garlenda SV 7 1254 10665
Aquila d'Arroscia IM 8 166 10831
Alto CN 8 128 10959
Ranzo IM 8 557 11516
Casanova Lerrone SV 9 749 12265
Toirano SV 9 2644 14909
Ceriale SV 10 5561 20470
Albenga SV 10 24213 44683
Boissano SV 10 2492 47175
Bardineto SV 11 756 47931
Borghetto d'Arroscia IM 11 456 48387
Borghetto Santo Spirito SV 11 4948 53335
Alassio SV 11 10934 64269
Stellanello SV 11 808 65077
Testico SV 12 196 65273
Caprauna CN 12 104 65377
Garessio CN 13 3244 68621
Vessalico IM 13 282 68903
Loano SV 13 11407 80310
Giustenice SV 14 977 81287
Laigueglia SV 14 1810 83097
Cesio IM 14 283 83380
Villa Faraldi IM 15 444 83824
Pietra Ligure SV 15 8992 92816
Armo IM 15 111 92927
Calizzano SV 15 1475 94402
Magliolo SV 16 974 95376
Andora SV 16 7552 102928
Tovo San Giacomo SV 16 2582 105510
Pieve di Teco IM 16 1338 106848
Caravonica IM 17 282 107130
Chiusanico IM 17 607 107737
Ormea CN 17 1617 109354
Diano Arentino IM 17 722 110076
Borgio Verezzi SV 17 2205 112281
Chiusavecchia IM 17 577 112858
Priola CN 18 701 113559
Lucinasco IM 18 272 113831
Borgomaro IM 19 865 114696
Diano San Pietro IM 19 1145 115841
San Bartolomeo al Mare IM 19 3129 118970
Pontedassio IM 19 2323 121293
Pornassio IM 19 685 121978
Cervo IM 19 1187 123165
Calice Ligure SV 19 1730 124895
Rialto SV 19 564 125459
Aurigo IM 19 347 125806
Diano Castello IM 20 2214 128020

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Savona (61345 inhabitants)
40 Km NE of Sanremo (54807 inhabitants)
55 Km SE of Cuneo (56081 inhabitants)
75 Km W of Genova (586655 inhabitants)
90 Km S of Asti (76202 inhabitants)
99 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 		Md 2.0
M 2.0 		1985-06-20
09:48:40		 44.098 8.107 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 8769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-20 09:48:40 ± 0.261
Latitude 44.0980 ± 0.0156
Longitude 8.1070 ± 0.0247
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 8769

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) 2624.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00518
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 8769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:43

M:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 8769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.STV.Z. 1985-06-20T09:49:01.50 10.0 undecidable manual SG 285 0.5772 0.16 0.6
--.CK1.Z. 1985-06-20T09:48:54.00 10.0 undecidable manual SG 20 0.3441 0.17 0.8
--.STV.Z. 1985-06-20T09:48:54.00 10.0 undecidable manual PG 285 0.5772 1.31 0.3
--.IMP.Z. 1985-06-20T09:48:50.20 10.0 undecidable manual SG 220 0.2331 -0.22 0.6
--.ROB.Z. 1985-06-20T09:48:50.20 10.0 undecidable manual SG 320 0.2553 -1.06 0.1
--.CK1.Z. 1985-06-20T09:48:49.00 10.0 undecidable manual PG 20 0.3441 0.64 1.3
--.IMP.Z. 1985-06-20T09:48:46.40 10.0 undecidable manual PG 220 0.2331 0.01 2
--.ROB.Z. 1985-06-20T09:48:46.60 10.0 undecidable manual PG 320 0.2553 -0.27 1.7
--.FIN.Z. 1985-06-20T09:48:46.60 10.0 undecidable manual SG 33 0.1221 -0.42 0.7
--.FIN.Z. 1985-06-20T09:48:44.20 10.0 undecidable manual PG 33 0.1221 -0.22 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