Earthquake with magnitude of Md 2.5 on date 22-08-1985 and time 17:30:55 (UTC) in region 3 km NW Avigliano (PZ)

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

  • 22-08-1985 17:30:55 (UTC)
  • 22-08-1985 19:30:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.76, 15.7 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
Avigliano PZ 3 11577 11577
Ruoti PZ 4 3579 15156
Filiano PZ 6 2926 18082
Baragiano PZ 12 2671 20753
Bella PZ 13 5171 25924
Picerno PZ 14 5985 31909
Atella PZ 14 3827 35736
San Fele PZ 15 3004 38740
Potenza PZ 16 67122 105862
Pietragalla PZ 16 4160 110022
Ruvo del Monte PZ 17 1083 111105
Muro Lucano PZ 18 5497 116602
Ripacandida PZ 18 1744 118346
Forenza PZ 18 2122 120468
Balvano PZ 19 1830 122298
Tito PZ 19 7332 129630
Rionero in Vulture PZ 19 13230 142860
Rapone PZ 19 990 143850
Cancellara PZ 20 1309 145159
Ginestra PZ 20 747 145906

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Potenza (67122 inhabitants)
60 Km S of Cerignola (58396 inhabitants)
62 Km E of Battipaglia (50786 inhabitants)
73 Km W of Altamura (70396 inhabitants)
73 Km SW of Andria (100440 inhabitants)
77 Km W of Matera (60436 inhabitants)
78 Km E of Avellino (54857 inhabitants)
79 Km E of Salerno (135261 inhabitants)
80 Km SW of Barletta (94814 inhabitants)
80 Km S of Foggia (151991 inhabitants)
84 Km E of Cava de' Tirreni (53659 inhabitants)
84 Km SW of Trani (56217 inhabitants)
87 Km SW of Bisceglie (55422 inhabitants)
87 Km E of Benevento (60091 inhabitants)
91 Km SW of Molfetta (59874 inhabitants)
93 Km W of Bitonto (55540 inhabitants)
98 Km E of Scafati (50787 inhabitants)
99 Km S of Manfredonia (57279 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 1985-08-22
17:30:55
40.76 15.7 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 12229
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-08-22 17:30:55 ± 0.286
Latitude 40.76 ± 0.03
Longitude 15.70 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 12229

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) 4458.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00405
Epicentral distance of station farthest from the epicenter (degree) 0.00988
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 12229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:15:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BRT.Z. 1985-08-22T17:31:32.50 10.0 undecidable manual SN 83 0.0099 0.17 0.7
--.BRT.Z. 1985-08-22T17:31:16.00 10.0 undecidable manual PN 83 0.0099 -0.79 1
--.SOR.Z. 1985-08-22T17:31:15.20 10.0 undecidable manual PN 260 0.0094 -0.76 1
--.ORI.Z. 1985-08-22T17:31:14.00 10.0 undecidable manual PG 140 0.0081 0.55 1.2
--.TR9.Z. 1985-08-22T17:31:05.80 10.0 undecidable manual PG 309 0.004 0.68 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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