Earthquake with magnitude of Md 2.4 on date 18-02-1986 and time 22:42:32 (UTC) in region 3 km SW Bardi (PR)

A magnitude Md 2.4 earthquake occured in region: 3 km SW Bardi (PR), on

  • 18-02-1986 22:42:32 (UTC)
  • 18-02-1986 23:42:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.6140, 9.7130 at 12 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 3 2227 2227
Varsi PR 12 1230 3457
Morfasso PC 12 1024 4481
Bore PR 14 749 5230
Compiano PR 14 1112 6342
Bedonia PR 14 3482 9824
Borgo Val di Taro PR 15 6999 16823
Valmozzola PR 15 539 17362
Farini PC 16 1290 18652
Tornolo PR 16 1010 19662
Ferriere PC 17 1294 20956
Albareto PR 19 2156 23112
Bettola PC 20 2828 25940

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km S of Piacenza (102191 inhabitants)
53 Km W of Parma (192836 inhabitants)
57 Km N of La Spezia (93959 inhabitants)
63 Km SW of Cremona (71901 inhabitants)
66 Km E of Genova (586655 inhabitants)
67 Km NW of Carrara (63133 inhabitants)
73 Km NW of Massa (69479 inhabitants)
73 Km W of Reggio nell'Emilia (171345 inhabitants)
77 Km SE of Pavia (72576 inhabitants)
93 Km E of Alessandria (93943 inhabitants)
93 Km NW of Viareggio (62467 inhabitants)
95 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 2.4
M 2.4
1986-02-18
22:42:32
44.614 9.713 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 22889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-02-18 22:42:32 ± 0.159
Latitude 44.6140 ± 0.0111
Longitude 9.7130 ± 0.0298
Depth (km) 12 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 22889

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) 2659.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01214
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 22889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:25:00

M:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 22889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ROB.-. 1986-02-18T22:43:15.00 10.0 undecidable manual SN 257 1.3431 0.7 0.1
--.FIN.-. 1986-02-18T22:43:08.80 10.0 undecidable manual SN 249 1.1433 -0.72 0.1
--.ROB.-. 1986-02-18T22:42:56.70 10.0 undecidable manual PN 257 1.3431 0.26 1.1
--.FIN.-. 1986-02-18T22:42:53.40 10.0 undecidable manual PN 249 1.1433 -0.29 1.1
--.VEA.-. 1986-02-18T22:42:43.20 10.0 undecidable manual SG 346 0.2775 0.13 0.9
--.CO9.Z. 1986-02-18T22:42:41.50 10.0 undecidable manual SG 309 0.2331 -0.28 0.7
--.BVT.-. 1986-02-18T22:42:39.20 10.0 undecidable manual SG 152 0.1554 0.06 0.9
--.VEA.-. 1986-02-18T22:42:38.10 10.0 undecidable manual PG 346 0.2775 -0.31 1.5
--.CO9.Z. 1986-02-18T22:42:38.00 10.0 undecidable manual PG 309 0.2331 0.33 1.4
--.BVT.-. 1986-02-18T22:42:36.10 10.0 positive manual PG 152 0.1554 -0.05 2.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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