Earthquake with magnitude of M 2.0 on date 07-02-1985 and time 12:05:10 (UTC) in region 3 km W Taggia (IM)

A magnitude M 2.0 earthquake occured in region: 3 km W Taggia (IM), on

  • 07-02-1985 12:05:10 (UTC)
  • 07-02-1985 13:05:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8550, 7.8200 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
Taggia IM 3 14116 14116
Castellaro IM 4 1256 15372
Sanremo IM 5 54807 70179
Ceriana IM 5 1250 71429
Riva Ligure IM 5 2910 74339
Pompeiana IM 6 823 75162
Terzorio IM 6 216 75378
Santo Stefano al Mare IM 7 2197 77575
Badalucco IM 7 1136 78711
Pietrabruna IM 8 501 79212
Montalto Ligure IM 9 377 79589
Cipressa IM 9 1290 80879
Costarainera IM 10 828 81707
Bajardo IM 10 312 82019
Ospedaletti IM 10 3367 85386
Seborga IM 11 315 85701
Civezza IM 11 609 86310
San Lorenzo al Mare IM 12 1297 87607
Perinaldo IM 12 870 88477
Dolcedo IM 12 1415 89892
Carpasio IM 12 168 90060
Prelà IM 12 503 90563
Apricale IM 13 629 91192
Vallebona IM 13 1310 92502
Soldano IM 14 977 93479
Vasia IM 14 389 93868
San Biagio della Cima IM 14 1329 95197
Castel Vittorio IM 14 287 95484
Bordighera IM 14 10469 105953
Isolabona IM 15 679 106632
Pigna IM 15 859 107491
Molini di Triora IM 16 617 108108
Vallecrosia IM 16 6956 115064
Dolceacqua IM 16 2074 117138
Camporosso IM 16 5632 122770
Triora IM 16 355 123125
Aurigo IM 17 347 123472
Borgomaro IM 17 865 124337
Imperia IM 17 42034 166371
Lucinasco IM 17 272 166643
Rocchetta Nervina IM 18 298 166941
Chiusavecchia IM 18 577 167518
Pontedassio IM 18 2323 169841
Ventimiglia IM 18 24310 194151
Caravonica IM 19 282 194433
Rezzo IM 19 366 194799
Chiusanico IM 19 607 195406

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NE of Sanremo (54807 inhabitants)
64 Km SE of Cuneo (56081 inhabitants)
73 Km SW of Savona (61345 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 1985-02-07
12:05:10
43.855 7.82 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 1269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-07 12:05:10 ± 0.408
Latitude 43.8550 ± 0.0175
Longitude 7.8200 ± 0.0322
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 1269

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) 3232.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 324
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00405
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 1269
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
--.ROB.Z. 1985-02-07T12:05:27.00 10.0 undecidable manual SG 4 0.0040 -0.12 0.4
--.FIN.Z. 1985-02-07T12:05:27.50 10.0 undecidable manual SG 38 0.0040 0.33 0
--.ROB.Z. 1985-02-07T12:05:20.30 10.0 undecidable manual PG 4 0.0040 0.07 1.1
--.FIN.Z. 1985-02-07T12:05:20.30 10.0 undecidable manual PG 38 0.0040 0.04 1.2
--.IMP.Z. 1985-02-07T12:05:15.20 10.0 undecidable manual SG 40 0.0007 -0.28 0.1
--.IMP.Z. 1985-02-07T12:05:13.50 10.0 undecidable manual PG 40 0.0007 -0.01 3.1
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