Earthquake with magnitude of Md 3.1 on date 22-07-1986 and time 10:26:58 (Italy) in region 1 km NW Tito (PZ)

A magnitude Md 3.1 earthquake occured in region: 1 km NW Tito (PZ), on

  • 22-07-1986 08:26:58 (UTC)
  • 22-07-1986 10:26:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.59, 15.67 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
Tito PZ 1 7332 7332
Picerno PZ 6 5985 13317
Satriano di Lucania PZ 6 2374 15691
Pignola PZ 10 6962 22653
Savoia di Lucania PZ 11 1127 23780
Sant'Angelo Le Fratte PZ 11 1429 25209
Baragiano PZ 12 2671 27880
Sasso di Castalda PZ 12 835 28715
Potenza PZ 12 67122 95837
Brienza PZ 13 4078 99915
Ruoti PZ 14 3579 103494
Vietri di Potenza PZ 14 2832 106326
Balvano PZ 15 1830 108156
Abriola PZ 15 1531 109687
Caggiano SA 15 2765 112452
Avigliano PZ 16 11577 124029
Polla SA 18 5279 129308
Ricigliano SA 18 1144 130452
Salvitelle SA 18 560 131012
Atena Lucana SA 18 2336 133348
Calvello PZ 20 1948 135296
Pertosa SA 20 690 135986
Marsico Nuovo PZ 20 4098 140084

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km W of Potenza (67122 inhabitants)
58 Km E of Battipaglia (50786 inhabitants)
77 Km S of Cerignola (58396 inhabitants)
78 Km E of Salerno (135261 inhabitants)
79 Km W of Matera (60436 inhabitants)
79 Km W of Altamura (70396 inhabitants)
82 Km E of Avellino (54857 inhabitants)
83 Km E of Cava de' Tirreni (53659 inhabitants)
88 Km SW of Andria (100440 inhabitants)
95 Km SW of Barletta (94814 inhabitants)
96 Km SE of Benevento (60091 inhabitants)
97 Km S of Foggia (151991 inhabitants)
98 Km E of Scafati (50787 inhabitants)
98 Km SW of Trani (56217 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 3.1 1986-07-22
08:26:58
40.59 15.67 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 31459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-07-22 08:26:58 ± 0.15
Latitude 40.59 ± 0.01
Longitude 15.67 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 31459

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) 1580.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
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) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.02283
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 31459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:32:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SO9.Z. 1986-07-22T08:27:41.00 10.0 undecidable manual PN 172 0.0228 0.38 0.4
--.BRT.Z. 1986-07-22T08:27:38.00 10.0 undecidable manual SN 75 0.0103 -0.16 0.5
--.LCI.Z. 1986-07-22T08:27:31.50 10.0 undecidable manual PN 96 0.0168 0.01 1.1
--.BRT.Z. 1986-07-22T08:27:21.50 10.0 undecidable manual PN 75 0.0103 -0.09 1.4
--.TS9.Z. 1986-07-22T08:27:21.00 10.0 undecidable manual PG 151 0.0096 0.7 0.2
--.MG9.Z. 1986-07-22T08:27:16.50 10.0 undecidable manual SG 191 0.0041 -0.24 0.5
--.ORI.Z. 1986-07-22T08:27:15.20 10.0 undecidable manual PG 132 0.0071 -0.22 1.2
--.SGO.Z. 1986-07-22T08:27:10.50 10.0 undecidable manual SG 262 0.0025 0.64 0.1
--.MG9.Z. 1986-07-22T08:27:09.00 10.0 negative manual PG 191 0.0041 -0.22 2.4
--.SGO.Z. 1986-07-22T08:27:05.00 10.0 positive manual PG 262 0.0025 -0.25 2.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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