Earthquake with magnitude of Md 2.5 on date 12-02-1986 and time 15:13:19 (Italy) in region 2 km SW Grumento Nova (PZ)

A magnitude Md 2.5 earthquake occured in region: 2 km SW Grumento Nova (PZ), on

  • 12-02-1986 14:13:19 (UTC)
  • 12-02-1986 15:13:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.27, 15.88 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
Grumento Nova PZ 2 1700 1700
Sarconi PZ 3 1404 3104
Moliterno PZ 4 4062 7166
Spinoso PZ 8 1462 8628
Viggiano PZ 8 3329 11957
Tramutola PZ 9 3089 15046
Montemurro PZ 11 1235 16281
Marsicovetere PZ 12 5546 21827
Montesano sulla Marcellana SA 15 6704 28531
San Martino d'Agri PZ 15 801 29332
Castelsaraceno PZ 16 1384 30716
Armento PZ 17 631 31347
Paterno PZ 17 3368 34715
Casalbuono SA 18 1194 35909
Corleto Perticara PZ 19 2511 38420
Lagonegro PZ 19 5584 44004
San Chirico Raparo PZ 19 1084 45088
Padula SA 20 5368 50456

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km S of Potenza (67122 inhabitants)
75 Km SW of Matera (60436 inhabitants)
84 Km E of Battipaglia (50786 inhabitants)
84 Km SW of Altamura (70396 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 1986-02-12
14:13:19
40.27 15.88 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 22579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-02-12 14:13:19 ± 0.185
Latitude 40.27 ± 0.02
Longitude 15.88 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 22579

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) 2115.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.00518
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 22579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:24:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORI.Z. 1986-02-12T14:13:37.00 10.0 undecidable manual SG 116 0.0044 0.21 0.4
--.SGO.Z. 1986-02-12T14:13:37.50 10.0 undecidable manual SG 303 0.0046 -0.27 0.5
--.MG9.Z. 1986-02-12T14:13:30.50 10.0 undecidable manual SG 240 0.0025 0.36 0.4
--.CSI.Z. 1986-02-12T14:13:30.20 10.0 undecidable manual PG 146 0.0052 -0.95 0.4
--.SGO.Z. 1986-02-12T14:13:30.00 10.0 undecidable manual PG 303 0.0046 0.07 1.9
--.ORI.Z. 1986-02-12T14:13:29.50 10.0 undecidable manual PG 116 0.0044 0.14 1.4
--.MG9.Z. 1986-02-12T14:13:25.50 10.0 undecidable manual PG 240 0.0025 -0.03 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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