Earthquake with magnitude of Md 2.1 on date 24-06-1985 and time 19:05:42 (UTC) in region 6 km W Ferriere (PC)

A magnitude Md 2.1 earthquake occured in region: 6 km W Ferriere (PC), on

  • 24-06-1985 19:05:42 (UTC)
  • 24-06-1985 21:05:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6280, 9.4290 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 6 1294 1294
Ottone PC 8 516 1810
Cerignale PC 8 127 1937
Santo Stefano d'Aveto GE 9 1126 3063
Corte Brugnatella PC 10 586 3649
Gorreto GE 11 97 3746
Rezzoaglio GE 12 995 4741
Zerba PC 12 77 4818
Coli PC 13 879 5697
Rovegno GE 13 554 6251
Fontanigorda GE 13 277 6528
Farini PC 15 1290 7818
Bobbio PC 16 3577 11395
Fascia GE 17 81 11476
Brallo di Pregola PV 17 599 12075
Montebruno GE 18 240 12315
Rondanina GE 18 62 12377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NE of Genova (586655 inhabitants)
52 Km SW of Piacenza (102191 inhabitants)
66 Km SE of Pavia (72576 inhabitants)
66 Km NW of La Spezia (93959 inhabitants)
72 Km E of Alessandria (93943 inhabitants)
73 Km SW of Cremona (71901 inhabitants)
74 Km W of Parma (192836 inhabitants)
81 Km NW of Carrara (63133 inhabitants)
83 Km E of Savona (61345 inhabitants)
87 Km NW of Massa (69479 inhabitants)
89 Km SE of Vigevano (63310 inhabitants)
95 Km S of Milano (1345851 inhabitants)
95 Km W of Reggio nell'Emilia (171345 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 2.1 1985-06-24
19:05:42
44.628 9.429 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 9089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-24 19:05:42 ± 0.604
Latitude 44.6280 ± 0.0193
Longitude 9.4290 ± 0.0484
Depth (km) 5 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 9089

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) 4385.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 246
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.00405
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 9089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BVT.Z. 1985-06-24T19:05:55.20 10.0 undecidable manual SG 118 0.3108 0.09 0.6
--.VEA.Z. 1985-06-24T19:05:54.00 10.0 undecidable manual SG 27 0.2886 -0.3 0.5
--.PCN.Z. 1985-06-24T19:05:53.00 10.0 undecidable manual PG 21 0.444 0.1 2.4
--.BVT.Z. 1985-06-24T19:05:49.90 10.0 undecidable manual PG 118 0.3108 -0.02 1.5
--.CO9.Z. 1985-06-24T19:05:49.50 10.0 undecidable manual SG 5 0.1332 1 0
--.VEA.Z. 1985-06-24T19:05:48.60 10.0 undecidable manual PG 27 0.2886 -0.85 0.2
--.CO9.Z. 1985-06-24T19:05:46.00 10.0 undecidable manual PG 5 0.1332 -0.1 1.6
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