Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 22-06-1985 and time 20:47:27 (Italy) in region 7 km E Ferriere (PC)

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

  • 22-06-1985 18:47:27 (UTC)
  • 22-06-1985 20:47:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6310, 9.5810 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Farini PC 9 1290 2584
Bardi PR 12 2227 4811
Santo Stefano d'Aveto GE 14 1126 5937
Morfasso PC 14 1024 6961
Bedonia PR 15 3482 10443
Compiano PR 16 1112 11555
Bettola PC 16 2828 14383
Tornolo PR 17 1010 15393
Corte Brugnatella PC 18 586 15979
Coli PC 18 879 16858
Cerignale PC 19 127 16985
Rezzoaglio GE 19 995 17980
Ottone PC 20 516 18496
Bore PR 20 749 19245

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km S of Piacenza (102191 inhabitants)
57 Km E of Genova (586655 inhabitants)
61 Km NW of La Spezia (93959 inhabitants)
62 Km W of Parma (192836 inhabitants)
66 Km SW of Cremona (71901 inhabitants)
70 Km SE of Pavia (72576 inhabitants)
74 Km NW of Carrara (63133 inhabitants)
80 Km NW of Massa (69479 inhabitants)
82 Km E of Alessandria (93943 inhabitants)
83 Km W of Reggio nell'Emilia (171345 inhabitants)
94 Km E of Savona (61345 inhabitants)
95 Km SE of Vigevano (63310 inhabitants)
98 Km SE of Milano (1345851 inhabitants)
100 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 1985-06-22
18:47:27		 44.631 9.581 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 8949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-22 18:47:27 ± 0.256
Latitude 44.6310 ± 0.0152
Longitude 9.5810 ± 0.0259
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 8949

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) 2657.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01821
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 8949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.STV.Z. 1985-06-22T18:48:20.00 10.0 undecidable manual SN 257 1.6428 1.03 0.2
--.VAI.Z. 1985-06-22T18:48:12.00 10.0 undecidable manual SN 335 1.3542 -0.06 0.7
--.IMP.Z. 1985-06-22T18:48:12.50 10.0 undecidable manual SN 240 1.3986 -0.58 0.5
--.ROB.Z. 1985-06-22T18:48:10.00 10.0 undecidable manual SN 255 1.2543 0.27 0.6
--.FIN.Z. 1985-06-22T18:48:03.00 10.0 undecidable manual SG 247 1.0656 -1.99 0
--.CTI.Z. 1985-06-22T18:48:03.50 10.0 undecidable manual PN 45 2.0202 0.93 0.6
--.STV.Z. 1985-06-22T18:47:57.50 10.0 undecidable manual PN 257 1.6428 0.13 1.4
--.ORO.Z. 1985-06-22T18:47:56.50 10.0 undecidable manual PN 312 1.4985 1.13 0.5
--.VAI.Z. 1985-06-22T18:47:54.00 10.0 undecidable manual PN 335 1.3542 0.61 1.2
--.IMP.Z. 1985-06-22T18:47:54.10 10.0 undecidable manual PN 240 1.3986 0.13 1.6
--.ROB.Z. 1985-06-22T18:47:52.00 10.0 undecidable manual PN 255 1.2543 -0.04 1.7
--.GEN.Z. 1985-06-22T18:47:47.20 10.0 undecidable manual SG 245 0.4995 0.27 0.7
--.CK1.Z. 1985-06-22T18:47:47.00 10.0 undecidable manual PG 257 0.9435 -0.17 1.8
--.FIN.Z. 1985-06-22T18:47:47.90 10.0 undecidable manual PG 247 1.0656 -1.41 0.4
--.BD1.Z. 1985-06-22T18:47:46.20 10.0 undecidable manual PG 127 0.9213 -0.41 1.6
--.GEN.Z. 1985-06-22T18:47:40.10 10.0 undecidable manual PG 245 0.4995 1.22 0.5
--.VEA.Z. 1985-06-22T18:47:37.70 10.0 undecidable manual SG 5 0.2553 -0.32 0.7
--.PCN.Z. 1985-06-22T18:47:37.00 10.0 undecidable manual PG 8 0.4218 -0.34 3.3
--.VEA.Z. 1985-06-22T18:47:32.80 10.0 undecidable manual PG 5 0.2553 -0.94 0.9
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