Earthquake with magnitude of Md 2.5 on date 05-02-1987 and time 22:34:08 (Italy) in region 3 km SW Pignola (PZ)

A magnitude Md 2.5 earthquake occured in region: 3 km SW Pignola (PZ), on

  • 05-02-1987 21:34:08 (UTC)
  • 05-02-1987 22:34:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.5580, 15.7520 at 53 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
Pignola PZ 3 6962 6962
Tito PZ 7 7332 14294
Abriola PZ 8 1531 15825
Satriano di Lucania PZ 10 2374 18199
Sasso di Castalda PZ 10 835 19034
Potenza PZ 10 67122 86156
Calvello PZ 12 1948 88104
Picerno PZ 13 5985 94089
Brienza PZ 14 4078 98167
Anzi PZ 15 1696 99863
Marsico Nuovo PZ 15 4098 103961
Sant'Angelo Le Fratte PZ 16 1429 105390
Savoia di Lucania PZ 17 1127 106517
Brindisi Montagna PZ 17 908 107425
Vaglio Basilicata PZ 19 2047 109472
Ruoti PZ 19 3579 113051
Baragiano PZ 19 2671 115722
Avigliano PZ 19 11577 127299
Atena Lucana SA 20 2336 129635
Paterno PZ 20 3368 133003

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Potenza (67122 inhabitants)
65 Km E of Battipaglia (50786 inhabitants)
73 Km W of Matera (60436 inhabitants)
74 Km W of Altamura (70396 inhabitants)
80 Km S of Cerignola (58396 inhabitants)
85 Km E of Salerno (135261 inhabitants)
87 Km SW of Andria (100440 inhabitants)
90 Km E of Cava de' Tirreni (53659 inhabitants)
90 Km E of Avellino (54857 inhabitants)
96 Km SW of Barletta (94814 inhabitants)
97 Km SW of Trani (56217 inhabitants)
99 Km SW of Bisceglie (55422 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 2.5 1987-02-05
21:34:08
40.558 15.752 53 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 40629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-02-05 21:34:08 ± 0.536
Latitude 40.5580 ± 0.0278
Longitude 15.7520 ± 0.0298
Depth (km) 53 ± 7 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 40629

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) 3982.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00300
Epicentral distance of station farthest from the epicenter (degree) 0.00988
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 40629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:40:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BRT.Z. 1987-02-05T21:34:42.00 10.0 undecidable manual S 72 1.0989 -0.37 0.3
--.ORI.Z. 1987-02-05T21:34:34.50 10.0 undecidable manual S 133 0.7326 0.55 0.2
--.BRT.Z. 1987-02-05T21:34:28.50 10.0 undecidable manual P 72 1.0989 0.25 1.3
--.SGO.Z. 1987-02-05T21:34:26.00 10.0 undecidable manual S 270 0.333 -0.13 1.2
--.ORI.Z. 1987-02-05T21:34:23.00 10.0 undecidable manual P 133 0.7326 -0.39 1
--.SGO.Z. 1987-02-05T21:34:19.00 10.0 undecidable manual P 270 0.333 0.13 2
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