Earthquake with magnitude of Md 2.1 on date 25-06-1985 and time 01:47:50 (UTC) in region 8 km SE Farini (PC)

A magnitude Md 2.1 earthquake occured in region: 8 km SE Farini (PC), on

  • 25-06-1985 01:47:50 (UTC)
  • 25-06-1985 03:47:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6670, 9.6400 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 8 1290 1290
Morfasso PC 8 1024 2314
Bardi PR 8 2227 4541
Ferriere PC 11 1294 5835
Bettola PC 13 2828 8663
Bore PR 14 749 9412
Varsi PR 16 1230 10642
Bedonia PR 18 3482 14124
Compiano PR 19 1112 15236
Gropparello PC 20 2293 17529
Coli PC 20 879 18408
Santo Stefano d'Aveto GE 20 1126 19534

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km S of Piacenza (102191 inhabitants)
57 Km W of Parma (192836 inhabitants)
60 Km SW of Cremona (71901 inhabitants)
63 Km E of Genova (586655 inhabitants)
64 Km N of La Spezia (93959 inhabitants)
69 Km SE of Pavia (72576 inhabitants)
75 Km NW of Carrara (63133 inhabitants)
78 Km W of Reggio nell'Emilia (171345 inhabitants)
81 Km NW of Massa (69479 inhabitants)
85 Km E of Alessandria (93943 inhabitants)
95 Km SE of Vigevano (63310 inhabitants)
96 Km SE of Milano (1345851 inhabitants)
99 Km W of Carpi (70699 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 1985-06-25
01:47:50
44.667 9.64 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 9129
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-25 01:47:50 ± 0.278
Latitude 44.6670 ± 0.0176
Longitude 9.6400 ± 0.0405
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 9129

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) 3756.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00340
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 9129
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:13:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BVT.Z. 1985-06-25T01:48:00.70 10.0 undecidable manual SG 146 0.222 0.84 0.1
--.VEA.Z. 1985-06-25T01:48:00.10 10.0 undecidable manual SG 356 0.2109 0.45 0.4
--.PCN.Z. 1985-06-25T01:47:59.00 10.0 undecidable manual PG 2 0.3774 0.21 2.4
--.VEA.Z. 1985-06-25T01:47:55.00 10.0 undecidable manual PG 356 0.2109 -0.81 0.4
--.BVT.Z. 1985-06-25T01:47:55.50 10.0 undecidable manual PG 146 0.222 -0.43 1.1
--.CO9.Z. 1985-06-25T01:47:55.00 10.0 undecidable manual PG 306 0.1665 0.19 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