INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of M 2.0 on date 25-02-1985 and time 17:33:32 (Italy) in region 4 km SE Molini di Triora (IM)

A magnitude M 2.0 earthquake occured in region: 4 km SE Molini di Triora (IM), on

  • 25-02-1985 16:33:32 (UTC)
  • 25-02-1985 17:33:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.96, 7.8 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
Molini di Triora IM 4 617 617
Montalto Ligure IM 5 377 994
Triora IM 5 355 1349
Carpasio IM 6 168 1517
Badalucco IM 6 1136 2653
Bajardo IM 8 312 2965
Ceriana IM 8 1250 4215
Rezzo IM 10 366 4581
Castel Vittorio IM 10 287 4868
Aurigo IM 11 347 5215
Pigna IM 11 859 6074
Pietrabruna IM 11 501 6575
Castellaro IM 12 1256 7831
Prelà IM 12 503 8334
Borgomaro IM 12 865 9199
Montegrosso Pian Latte IM 13 118 9317
Vasia IM 13 389 9706
Taggia IM 13 14116 23822
Pompeiana IM 14 823 24645
Lucinasco IM 14 272 24917
Apricale IM 14 629 25546
Dolcedo IM 14 1415 26961
Mendatica IM 14 185 27146
Perinaldo IM 14 870 28016
Cosio d'Arroscia IM 14 221 28237
Caravonica IM 14 282 28519
Terzorio IM 14 216 28735
Pieve di Teco IM 14 1338 30073
Pornassio IM 14 685 30758
Riva Ligure IM 15 2910 33668
Sanremo IM 15 54807 88475
Briga Alta CN 15 39 88514
Civezza IM 15 609 89123
Isolabona IM 15 679 89802
Chiusavecchia IM 15 577 90379
Santo Stefano al Mare IM 15 2197 92576
Cesio IM 16 283 92859
Cipressa IM 16 1290 94149
Chiusanico IM 16 607 94756
Costarainera IM 16 828 95584
Seborga IM 16 315 95899
Vessalico IM 17 282 96181
Rocchetta Nervina IM 17 298 96479
San Lorenzo al Mare IM 18 1297 97776
Pontedassio IM 18 2323 100099
Armo IM 18 111 100210
Dolceacqua IM 18 2074 102284
Soldano IM 18 977 103261
Ospedaletti IM 18 3367 106628
Vallebona IM 19 1310 107938
Borghetto d'Arroscia IM 19 456 108394
San Biagio della Cima IM 19 1329 109723
Testico SV 20 196 109919
Diano Arentino IM 20 722 110641

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km N of Sanremo (54807 inhabitants)
53 Km SE of Cuneo (56081 inhabitants)
67 Km SW of Savona (61345 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
Rev 1000 M 2.0 1985-02-25
16:33:32
43.96 7.8 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-25 16:33:32 ± 0.233
Latitude 43.96 ± 0.04
Longitude 7.80 ± 0.01
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2519

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) 4261.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.00397
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

M:2

Field Value
Value 2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 2519
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
--.STV.Z. 1985-02-25T16:33:47.50 10.0 undecidable manual SG 311 0.004 -0.77 0
--.FIN.Z. 1985-02-25T16:33:46.00 10.0 undecidable manual SG 49 0.0035 -0.43 0.2
--.ENR.Z. 1985-02-25T16:33:46.10 10.0 undecidable manual SG 315 0.0034 -0.11 0.6
--.ROB.Z. 1985-02-25T16:33:45.10 10.0 undecidable manual SG 9 0.0032 -0.1 0.6
--.STV.Z. 1985-02-25T16:33:41.30 10.0 undecidable manual PG 311 0.004 -0.1 1.4
--.ROB.Z. 1985-02-25T16:33:40.00 10.0 undecidable manual PG 9 0.0032 0.37 0.7
--.FIN.Z. 1985-02-25T16:33:40.40 10.0 undecidable manual PG 49 0.0035 0.06 1.6
--.ENR.Z. 1985-02-25T16:33:40.60 10.0 undecidable manual PG 315 0.0034 0.39 0.7
--.IMP.Z. 1985-02-25T16:33:34.60 10.0 undecidable manual PG 118 0.0006 -0.09 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download