Earthquake with magnitude of Md 4.1 on date 15-08-1985 and time 18:58:05 (UTC) in region 6 km S Farini (PC)

A magnitude Md 4.1 earthquake occured in region: 6 km S Farini (PC), on

  • 15-08-1985 18:58:05 (UTC)
  • 15-08-1985 20:58:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.66, 9.59 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
Farini PC 6 1290 1290
Ferriere PC 8 1294 2584
Morfasso PC 11 1024 3608
Bardi PR 12 2227 5835
Bettola PC 13 2828 8663
Santo Stefano d'Aveto GE 17 1126 9789
Coli PC 17 879 10668
Bore PR 17 749 11417
Bedonia PR 18 3482 14899
Corte Brugnatella PC 18 586 15485
Compiano PR 19 1112 16597
Cerignale PC 19 127 16724
Tornolo PR 20 1010 17734

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km S of Piacenza (102191 inhabitants)
59 Km E of Genova (586655 inhabitants)
60 Km W of Parma (192836 inhabitants)
63 Km SW of Cremona (71901 inhabitants)
64 Km NW of La Spezia (93959 inhabitants)
68 Km SE of Pavia (72576 inhabitants)
76 Km NW of Carrara (63133 inhabitants)
82 Km NW of Massa (69479 inhabitants)
82 Km E of Alessandria (93943 inhabitants)
82 Km W of Reggio nell'Emilia (171345 inhabitants)
93 Km SE of Vigevano (63310 inhabitants)
95 Km SE of Milano (1345851 inhabitants)
96 Km E 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 Md 4.1 1985-08-15
18:58:05
44.66 9.59 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 11789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-15 18:58:05 ± 0.368
Latitude 44.66 ± 0.02
Longitude 9.59 ± 0.02
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 11789

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) 2641.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.06039
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitude information

Md:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 11789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:15:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BRT.Z. 1985-08-15T18:59:42.50 10.0 undecidable manual PN 121 0.0604 -0.76 0.4
--.RBL.Z. 1985-08-15T18:59:34.00 10.0 undecidable manual SN 55 0.0297 -0.11 0.4
--.SGO.Z. 1985-08-15T18:59:33.00 10.0 undecidable manual PN 132 0.0528 1.27 0.3
--.SD1.Z. 1985-08-15T18:59:10.50 10.0 undecidable manual PN 132 0.0383 0.89 0.5
--.RDP.Z. 1985-08-15T18:59:02.30 10.0 undecidable manual PN 140 0.0331 0.55 0.8
--.PO9.Z. 1985-08-15T18:58:55.20 10.0 undecidable manual PN 129 0.0287 0.19 1
--.RBL.Z. 1985-08-15T18:58:55.70 10.0 undecidable manual PN 55 0.0297 -0.77 0.7
--.MNS.Z. 1985-08-15T18:58:54.80 10.0 undecidable manual PN 134 0.0287 -0.14 1
--.CM2.Z. 1985-08-15T18:58:53.20 10.0 undecidable manual PN 118 0.0265 1.63 0.4
--.TRI.Z. 1985-08-15T18:58:52.60 10.0 undecidable manual PN 68 0.028 -1.36 0.3
--.FO1.Z. 1985-08-15T18:58:52.10 10.0 undecidable manual PN 47 0.0265 0.47 1.9
--.AR1.Z. 1985-08-15T18:58:49.10 10.0 undecidable manual PN 114 0.024 1.31 0.4
--.AS1.Z. 1985-08-15T18:58:48.60 10.0 undecidable manual PN 124 0.0244 0.09 1.1
--.MAO.Z. 1985-08-15T18:58:44.00 10.0 undecidable manual PN 152 0.0226 -1.6 0.2
--.SAL.Z. 1985-08-15T18:58:43.00 10.0 undecidable manual SN 34 0.0104 -0.02 0.5
--.CTI.Z. 1985-08-15T18:58:37.30 10.0 positive manual PN 45 0.018 -1.34 0.8
--.DA9.Z. 1985-08-15T18:58:35.00 10.0 undecidable manual PN 265 0.0151 0.81 0.8
--.STV.Z. 1985-08-15T18:58:34.10 10.0 undecidable manual PN 256 0.015 0.09 2.4
--.ORO.Z. 1985-08-15T18:58:33.20 10.0 undecidable manual PN 310 0.0134 1.58 0.3
--.VAI.Z. 1985-08-15T18:58:30.90 10.0 undecidable manual PN 334 0.012 1.39 0.4
--.ROB.Z. 1985-08-15T18:58:28.20 10.0 negative manual PN 254 0.0115 -0.48 2.1
--.BG1.Z. 1985-08-15T18:58:26.10 10.0 undecidable manual PN 4 0.01 -0.41 1.1
--.PS9.Z. 1985-08-15T18:58:26.10 10.0 undecidable manual PN 144 0.0103 -0.84 0.8
--.SAL.Z. 1985-08-15T18:58:26.20 10.0 undecidable manual PN 34 0.0104 -0.77 0.8
--.BD1.Z. 1985-08-15T18:58:23.00 10.0 positive manual PG 129 0.0083 -0.48 2.1
--.CK1.Z. 1985-08-15T18:58:23.70 10.0 positive manual PG 255 0.0087 -0.4 2.2
--.GEN.Z. 1985-08-15T18:58:15.20 10.0 negative manual PG 242 0.0047 -0.7 1.8
--.CO9.Z. 1985-08-15T18:58:09.10 10.0 negative manual PG 316 0.0013 0.2 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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