Earthquake with magnitude of Md 2.3 on date 16-02-1986 and time 21:31:24 (UTC) in region 3 km SW Bardi (PR)

A magnitude Md 2.3 earthquake occured in region: 3 km SW Bardi (PR), on

  • 16-02-1986 21:31:24 (UTC)
  • 16-02-1986 22:31:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6040, 9.7200 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 4 2227 2227
Varsi PR 12 1230 3457
Compiano PR 13 1112 4569
Bedonia PR 13 3482 8051
Morfasso PC 13 1024 9075
Borgo Val di Taro PR 13 6999 16074
Valmozzola PR 14 539 16613
Bore PR 14 749 17362
Tornolo PR 15 1010 18372
Farini PC 17 1290 19662
Albareto PR 18 2156 21818
Ferriere PC 18 1294 23112

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km S of Piacenza (102191 inhabitants)
53 Km W of Parma (192836 inhabitants)
56 Km N of La Spezia (93959 inhabitants)
64 Km SW of Cremona (71901 inhabitants)
66 Km NW of Carrara (63133 inhabitants)
66 Km E of Genova (586655 inhabitants)
71 Km NW of Massa (69479 inhabitants)
73 Km W of Reggio nell'Emilia (171345 inhabitants)
78 Km SE of Pavia (72576 inhabitants)
92 Km NW of Viareggio (62467 inhabitants)
94 Km E of Alessandria (93943 inhabitants)
94 Km W of Carpi (70699 inhabitants)
96 Km W of Modena (184973 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 2.3
M 2.5
1986-02-16
21:31:24
44.604 9.72 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 22769
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-02-16 21:31:24 ± 0.129
Latitude 44.6040 ± 0.0086
Longitude 9.7200 ± 0.0285
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 22769

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) 2451.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.01279
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 22769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:24:54

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 22769
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.VAI.Z. 1986-02-16T21:32:09.50 10.0 undecidable manual SN 332 1.4208 0.63 0.1
--.ROB.-. 1986-02-16T21:32:07.40 10.0 undecidable manual SN 257 1.3431 0.33 0.4
--.FIN.-. 1986-02-16T21:32:01.70 10.0 undecidable manual SN 250 1.1433 -0.55 0.1
--.VAI.Z. 1986-02-16T21:31:50.00 10.0 undecidable manual PN 332 1.4208 -0.09 1.6
--.ROB.-. 1986-02-16T21:31:49.20 10.0 undecidable manual PN 257 1.3431 0.16 1.5
--.FIN.-. 1986-02-16T21:31:46.00 10.0 undecidable manual PN 250 1.1433 -0.27 1.2
--.VEA.-. 1986-02-16T21:31:35.80 10.0 undecidable manual SG 345 0.2886 0.01 0.9
--.CO9.Z. 1986-02-16T21:31:34.50 10.0 undecidable manual SG 310 0.2553 0.03 0.9
--.BVT.-. 1986-02-16T21:31:31.40 10.0 undecidable manual SG 152 0.1443 0.34 0.5
--.VEA.-. 1986-02-16T21:31:30.60 10.0 undecidable manual PG 345 0.2886 -0.38 1
--.CO9.Z. 1986-02-16T21:31:30.50 10.0 undecidable manual PG 310 0.2553 0.27 1.5
--.BVT.-. 1986-02-16T21:31:28.20 10.0 undecidable manual PG 152 0.1443 -0.05 2.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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