Earthquake with magnitude of Md 2.3 on date 18-05-1986 and time 09:14:30 (Italy) in region 3 km E Bardi (PR)

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

  • 18-05-1986 07:14:30 (UTC)
  • 18-05-1986 09:14:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6310, 9.7680 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.

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 7 1230 3457
Bore PR 10 749 4206
Morfasso PC 11 1024 5230
Valmozzola PR 12 539 5769
Borgo Val di Taro PR 16 6999 12768
Solignano PR 17 1773 14541
Pellegrino Parmense PR 17 1048 15589
Compiano PR 17 1112 16701
Bedonia PR 18 3482 20183
Farini PC 18 1290 21473
Vernasca PC 20 2131 23604
Tornolo PR 20 1010 24614

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km S of Piacenza (102191 inhabitants)
48 Km W of Parma (192836 inhabitants)
58 Km N of La Spezia (93959 inhabitants)
60 Km SW of Cremona (71901 inhabitants)
67 Km NW of Carrara (63133 inhabitants)
69 Km W of Reggio nell'Emilia (171345 inhabitants)
71 Km E of Genova (586655 inhabitants)
72 Km NW of Massa (69479 inhabitants)
78 Km SE of Pavia (72576 inhabitants)
90 Km W of Carpi (70699 inhabitants)
92 Km W of Modena (184973 inhabitants)
93 Km NW of Viareggio (62467 inhabitants)
96 Km E of Alessandria (93943 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 2.4
1986-05-18
07:14:30
44.631 9.768 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 27579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-18 07:14:30 ± 0.329
Latitude 44.6310 ± 0.0151
Longitude 9.7680 ± 0.0486
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 27579

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) 4191.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01619
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 27579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:29:07

M:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 27579
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.Z. 1986-05-18T07:15:14.20 10.0 undecidable manual SN 257 1.3875 -0.73 0.3
--.DA9.Z. 1986-05-18T07:15:02.00 10.0 undecidable manual PN 266 1.7982 0.43 0.9
--.ROB.Z. 1986-05-18T07:14:56.10 10.0 undecidable manual PN 257 1.3875 0.15 1.4
--.VEA.Z. 1986-05-18T07:14:40.40 10.0 undecidable manual SG 337 0.2775 -0.5 0.5
--.BVT.Z. 1986-05-18T07:14:37.40 10.0 undecidable manual SG 167 0.1554 0.96 0.3
--.VEA.Z. 1986-05-18T07:14:36.50 10.0 undecidable manual PG 337 0.2775 0.2 1.8
--.BVT.Z. 1986-05-18T07:14:33.00 10.0 positive manual PG 167 0.1554 -0.72 1.8
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