Earthquake with magnitude of Md 2.5 on date 09-11-1985 and time 13:17:55 (UTC) in region 7 km SE Ferriere (PC)

A magnitude Md 2.5 earthquake occured in region: 7 km SE Ferriere (PC), on

  • 09-11-1985 13:17:55 (UTC)
  • 09-11-1985 14:17:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.5890, 9.5370 at 5 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
Ferriere PC 7 1294 1294
Santo Stefano d'Aveto GE 8 1126 2420
Bedonia PR 12 3482 5902
Tornolo PR 13 1010 6912
Rezzoaglio GE 14 995 7907
Farini PC 14 1290 9197
Compiano PR 14 1112 10309
Bardi PR 16 2227 12536
Ottone PC 17 516 13052
Cerignale PC 18 127 13179
Corte Brugnatella PC 19 586 13765
Fontanigorda GE 19 277 14042
Gorreto GE 19 97 14139
Coli PC 20 879 15018
Morfasso PC 20 1024 16042

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km E of Genova (586655 inhabitants)
53 Km S of Piacenza (102191 inhabitants)
58 Km NW of La Spezia (93959 inhabitants)
67 Km W of Parma (192836 inhabitants)
72 Km SW of Cremona (71901 inhabitants)
72 Km NW of Carrara (63133 inhabitants)
73 Km SE of Pavia (72576 inhabitants)
78 Km NW of Massa (69479 inhabitants)
81 Km E of Alessandria (93943 inhabitants)
87 Km W of Reggio nell'Emilia (171345 inhabitants)
89 Km E of Savona (61345 inhabitants)
97 Km SE of Vigevano (63310 inhabitants)
98 Km NW of Viareggio (62467 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 2.5 1985-11-09
13:17:55
44.589 9.537 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 15409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-11-09 13:17:55 ± 0.181
Latitude 44.5890 ± 0.0127
Longitude 9.5370 ± 0.0166
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 15409

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) 1932.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.01562
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 15409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:18:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.IMP.Z. 1985-11-09T13:18:40.70 10.0 undecidable manual SN 240 1.3431 0.68 0.3
--.ROB.Z. 1985-11-09T13:18:36.80 10.0 undecidable manual SN 256 1.2099 -0.05 0.6
--.FIN.Z. 1985-11-09T13:18:31.20 10.0 undecidable manual SG 248 1.0101 -0.44 0.5
--.SOO.Z. 1985-11-09T13:18:28.00 10.0 undecidable manual PN 268 1.7316 1.34 0.1
--.BD1.Z. 1985-11-09T13:18:28.00 10.0 undecidable manual SG 124 0.9213 -0.47 0.5
--.ORX.Z. 1985-11-09T13:18:24.80 10.0 undecidable manual PN 314 1.5096 1.2 0.2
--.IMP.Z. 1985-11-09T13:18:21.10 10.0 undecidable manual PN 240 1.3431 -0.31 1.2
--.ROB.Z. 1985-11-09T13:18:18.80 10.0 undecidable manual PN 256 1.2099 -0.78 0.7
--.FIN.Z. 1985-11-09T13:18:16.00 10.0 undecidable manual PG 248 1.0101 -0.57 1.1
--.BD1.Z. 1985-11-09T13:18:14.50 10.0 undecidable manual PG 124 0.9213 -0.24 1.5
--.CO9.Z. 1985-11-09T13:18:03.50 10.0 undecidable manual SG 340 0.1887 0.04 0.9
--.BVT.Z. 1985-11-09T13:18:01.40 10.0 undecidable manual PG 119 0.222 0.21 3
--.CO9.Z. 1985-11-09T13:17:59.80 10.0 positive manual PG 340 0.1887 -0.5 2.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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