Earthquake with magnitude of Md 2.5 on date 15-08-1985 and time 21:53:07 (Italy) in region 8 km W Bardi (PR)

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

  • 15-08-1985 19:53:07 (UTC)
  • 15-08-1985 21:53:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.66, 9.64 at 8 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 8 1290 3517
Morfasso PC 9 1024 4541
Ferriere PC 11 1294 5835
Bettola PC 14 2828 8663
Bore PR 15 749 9412
Varsi PR 17 1230 10642
Bedonia PR 17 3482 14124
Compiano PR 18 1112 15236
Santo Stefano d'Aveto GE 19 1126 16362
Tornolo PR 19 1010 17372

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km S of Piacenza (102191 inhabitants)
57 Km W of Parma (192836 inhabitants)
62 Km SW of Cremona (71901 inhabitants)
62 Km E of Genova (586655 inhabitants)
63 Km N of La Spezia (93959 inhabitants)
70 Km SE of Pavia (72576 inhabitants)
74 Km NW of Carrara (63133 inhabitants)
79 Km W of Reggio nell'Emilia (171345 inhabitants)
80 Km NW of Massa (69479 inhabitants)
86 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
Rev 1000 Md 2.5 1985-08-15
19:53:07
44.66 9.64 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 11819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-15 19:53:07 ± 0.324
Latitude 44.66 ± 0.01
Longitude 9.64 ± 0.02
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 11819

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) 2382.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01174
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 11819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:15:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ROB.Z. 1985-08-15T19:53:49.50 10.0 undecidable manual SN 254 0.0117 -0.45 0.2
--.BD1.Z. 1985-08-15T19:53:39.00 10.0 undecidable manual SG 130 0.0081 -0.26 0.4
--.ROB.Z. 1985-08-15T19:53:33.50 10.0 undecidable manual PN 254 0.0117 1.36 0.1
--.GEN.Z. 1985-08-15T19:53:27.00 10.0 undecidable manual SG 244 0.0049 -0.8 0.1
--.BD1.Z. 1985-08-15T19:53:26.00 10.0 undecidable manual PG 130 0.0081 0.04 1.4
--.GEN.Z. 1985-08-15T19:53:19.50 10.0 undecidable manual PG 244 0.0049 0.15 1.6
--.PCN.Z. 1985-08-15T19:53:16.50 10.0 undecidable manual PG 2 0.0035 0.02 3.1
--.CO9.Z. 1985-08-15T19:53:15.00 10.0 undecidable manual SG 309 0.0015 -0.03 0.6
--.CO9.Z. 1985-08-15T19:53:11.90 10.0 undecidable manual PG 309 0.0015 -0.08 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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