Earthquake with magnitude of Md 2.4 on date 12-08-1985 and time 05:12:01 (Italy) in region 3 km W Ferriere (PC)

A magnitude Md 2.4 earthquake occured in region: 3 km W Ferriere (PC), on

  • 12-08-1985 03:12:01 (UTC)
  • 12-08-1985 05:12:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6370, 9.4570 at 3 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 4 1294 1294
Cerignale PC 10 127 1421
Santo Stefano d'Aveto GE 10 1126 2547
Ottone PC 10 516 3063
Corte Brugnatella PC 10 586 3649
Coli PC 12 879 4528
Farini PC 13 1290 5818
Rezzoaglio GE 13 995 6813
Gorreto GE 13 97 6910
Zerba PC 14 77 6987
Rovegno GE 16 554 7541
Bobbio PC 16 3577 11118
Fontanigorda GE 16 277 11395
Brallo di Pregola PV 18 599 11994
Fascia GE 19 81 12075
Bettola PC 20 2828 14903

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Genova (586655 inhabitants)
50 Km SW of Piacenza (102191 inhabitants)
65 Km SE of Pavia (72576 inhabitants)
66 Km NW of La Spezia (93959 inhabitants)
71 Km SW of Cremona (71901 inhabitants)
71 Km W of Parma (192836 inhabitants)
73 Km E of Alessandria (93943 inhabitants)
80 Km NW of Carrara (63133 inhabitants)
86 Km E of Savona (61345 inhabitants)
86 Km NW of Massa (69479 inhabitants)
89 Km SE of Vigevano (63310 inhabitants)
93 Km W of Reggio nell'Emilia (171345 inhabitants)
95 Km S of Milano (1345851 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 2.4 1985-08-12
03:12:01
44.637 9.457 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 11609
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-12 03:12:01 ± 0.081
Latitude 44.6370 ± 0.0053
Longitude 9.4570 ± 0.0077
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 11609

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) 843.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.01069
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 11609
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:15:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ROB.Z. 1985-08-12T03:12:42.00 10.0 undecidable manual SN 254 1.1766 -0.13 0.4
--.ROB.Z. 1985-08-12T03:12:25.00 10.0 undecidable manual PN 254 1.1766 -0.1 1
--.PS9.Z. 1985-08-12T03:12:25.50 10.0 undecidable manual PN 139 1.1877 0.2 0.7
--.GEN.Z. 1985-08-12T03:12:18.20 10.0 undecidable manual SG 239 0.4218 -0.2 0.4
--.BVT.Z. 1985-08-12T03:12:13.10 10.0 undecidable manual SG 122 0.2997 -0.48 0
--.GEN.Z. 1985-08-12T03:12:11.50 10.0 undecidable manual PG 239 0.4218 0.1 1.5
--.PCN.Z. 1985-08-12T03:12:11.50 10.0 undecidable manual PG 19 0.4329 -0.12 2.8
--.BVT.Z. 1985-08-12T03:12:08.80 10.0 undecidable manual PG 122 0.2997 0.18 1.1
--.CO9.Z. 1985-08-12T03:12:05.00 10.0 undecidable manual PG 357 0.1221 0.19 1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download