Earthquake with magnitude of Md 2.5 on date 23-06-1985 and time 05:06:19 (UTC) in region 8 km W Bardi (PR)

A magnitude Md 2.5 earthquake occured in region: 8 km W Bardi (PR), on

  • 23-06-1985 05:06:19 (UTC)
  • 23-06-1985 07:06:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6500, 9.6310 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
Bardi PR 8 2227 2227
Farini PC 9 1290 3517
Morfasso PC 10 1024 4541
Ferriere PC 10 1294 5835
Bettola PC 14 2828 8663
Bore PR 15 749 9412
Bedonia PR 16 3482 12894
Varsi PR 17 1230 14124
Compiano PR 17 1112 15236
Santo Stefano d'Aveto GE 18 1126 16362
Tornolo PR 18 1010 17372

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km S of Piacenza (102191 inhabitants)
58 Km W of Parma (192836 inhabitants)
61 Km E of Genova (586655 inhabitants)
62 Km SW of Cremona (71901 inhabitants)
62 Km N of La Spezia (93959 inhabitants)
70 Km SE of Pavia (72576 inhabitants)
74 Km NW of Carrara (63133 inhabitants)
79 Km NW of Massa (69479 inhabitants)
79 Km W of Reggio nell'Emilia (171345 inhabitants)
85 Km E of Alessandria (93943 inhabitants)
96 Km SE of Vigevano (63310 inhabitants)
97 Km SE of Milano (1345851 inhabitants)
99 Km E of Savona (61345 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 1985-06-23
05:06:19
44.65 9.631 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 8989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-23 05:06:19 ± 0.696
Latitude 44.6500 ± 0.0356
Longitude 9.6310 ± 0.0732
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 8989

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) 7015.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.01295
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 8989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.IMP.Z. 1985-06-23T05:07:04.50 10.0 undecidable manual SN 240 1.443 -0.01 0.6
--.ROB.Z. 1985-06-23T05:07:02.00 10.0 undecidable manual SN 255 1.2987 0.87 0.2
--.IMP.Z. 1985-06-23T05:06:45.00 10.0 undecidable manual PN 240 1.443 -0.58 1
--.ROB.Z. 1985-06-23T05:06:44.50 10.0 undecidable manual PN 255 1.2987 0.87 0.6
--.GEN.Z. 1985-06-23T05:06:39.00 10.0 undecidable manual SG 245 0.5439 -0.1 0.7
--.CK1.Z. 1985-06-23T05:06:38.00 10.0 undecidable manual PG 257 0.9879 -1.18 0.4
--.GEN.Z. 1985-06-23T05:06:31.30 10.0 undecidable manual PG 245 0.5439 0.39 1.5
--.VEA.Z. 1985-06-23T05:06:29.50 10.0 undecidable manual SG 357 0.2331 0.18 0.7
--.PCN.Z. 1985-06-23T05:06:28.50 10.0 undecidable manual PG 3 0.3996 0.25 3.4
--.VEA.Z. 1985-06-23T05:06:24.40 10.0 undecidable manual PG 357 0.2331 -0.87 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