Earthquake with magnitude of M 2.0 on date 15-03-1985 and time 11:46:16 (Italy) in region 1 km W Zuccarello (SV)

A magnitude M 2.0 earthquake occured in region: 1 km W Zuccarello (SV), on

  • 15-03-1985 10:46:16 (UTC)
  • 15-03-1985 11:46:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1140, 8.1000 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 1 309 309
Castelbianco SV 2 330 639
Castelvecchio di Rocca Barbena SV 2 145 784
Erli SV 3 245 1029
Arnasco SV 4 645 1674
Cisano sul Neva SV 5 2085 3759
Vendone SV 5 388 4147
Nasino SV 6 207 4354
Onzo SV 6 219 4573
Balestrino SV 6 595 5168
Ortovero SV 7 1586 6754
Alto CN 8 128 6882
Aquila d'Arroscia IM 8 166 7048
Villanova d'Albenga SV 8 2657 9705
Garlenda SV 9 1254 10959
Toirano SV 9 2644 13603
Ranzo IM 9 557 14160
Bardineto SV 9 756 14916
Casanova Lerrone SV 10 749 15665
Boissano SV 10 2492 18157
Ceriale SV 11 5561 23718
Garessio CN 11 3244 26962
Borghetto d'Arroscia IM 11 456 27418
Borghetto Santo Spirito SV 11 4948 32366
Caprauna CN 12 104 32470
Albenga SV 12 24213 56683
Stellanello SV 13 808 57491
Loano SV 13 11407 68898
Alassio SV 13 10934 79832
Testico SV 13 196 80028
Vessalico IM 13 282 80310
Giustenice SV 14 977 81287
Calizzano SV 14 1475 82762
Magliolo SV 15 974 83736
Armo IM 15 111 83847
Pietra Ligure SV 15 8992 92839
Tovo San Giacomo SV 15 2582 95421
Cesio IM 15 283 95704
Ormea CN 16 1617 97321
Priola CN 16 701 98022
Laigueglia SV 16 1810 99832
Villa Faraldi IM 16 444 100276
Pieve di Teco IM 16 1338 101614
Borgio Verezzi SV 17 2205 103819
Andora SV 18 7552 111371
Caravonica IM 18 282 111653
Chiusanico IM 18 607 112260
Rialto SV 18 564 112824
Chiusavecchia IM 19 577 113401
Calice Ligure SV 19 1730 115131
Pornassio IM 19 685 115816
Diano Arentino IM 19 722 116538
Lucinasco IM 20 272 116810
Borgomaro IM 20 865 117675

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Savona (61345 inhabitants)
41 Km NE of Sanremo (54807 inhabitants)
54 Km SE of Cuneo (56081 inhabitants)
74 Km W of Genova (586655 inhabitants)
88 Km S of Asti (76202 inhabitants)
98 Km SW of Alessandria (93943 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
M 2.0 1985-03-15
10:46:16
44.114 8.1 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-15 10:46:16 ± 0.121
Latitude 44.1140 ± 0.0093
Longitude 8.1000 ± 0.0153
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3269

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) 1594.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
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) 0.2
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 3269
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 Takeoff_angle Residual Weight
--.IMP.Z. 1985-03-15T10:46:25.60 10.0 undecidable manual SG 217 0.0022 -0.36 0.3
--.ROB.Z. 1985-03-15T10:46:25.60 10.0 undecidable manual SG 319 0.0022 -0.41 0.2
--.ROB.Z. 1985-03-15T10:46:22.10 10.0 undecidable manual PG 319 0.0022 0.28 1
--.FIN.Z. 1985-03-15T10:46:21.70 10.0 undecidable manual SG 39 0.0011 -0.24 0.5
--.IMP.Z. 1985-03-15T10:46:21.90 10.0 undecidable manual PG 217 0.0022 0.1 1.8
--.FIN.Z. 1985-03-15T10:46:19.50 10.0 undecidable manual PG 39 0.0011 0.02 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download