Earthquake with magnitude of Md 2.0 on date 12-06-1991 and time 04:18:00 (UTC) in region 2 km S Potenza (PZ)

A magnitude Md 2.0 earthquake occured in region: 2 km S Potenza (PZ), on

  • 12-06-1991 04:18:00 (UTC)
  • 12-06-1991 06:18:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6210, 15.8090 at 16 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
Potenza PZ 2 67122 67122
Pignola PZ 6 6962 74084
Vaglio Basilicata PZ 11 2047 76131
Brindisi Montagna PZ 11 908 77039
Tito PZ 12 7332 84371
Abriola PZ 13 1531 85902
Avigliano PZ 14 11577 97479
Picerno PZ 15 5985 103464
Anzi PZ 15 1696 105160
Ruoti PZ 16 3579 108739
Pietragalla PZ 16 4160 112899
Cancellara PZ 16 1309 114208
Trivigno PZ 16 678 114886
Calvello PZ 16 1948 116834
Satriano di Lucania PZ 17 2374 119208
Sasso di Castalda PZ 19 835 120043
Tolve PZ 19 3251 123294
Baragiano PZ 19 2671 125965
Albano di Lucania PZ 20 1435 127400

Municipalities with at least 50000 inhabitants

An earthquake occurred to
2 Km S of Potenza (67122 inhabitants)
67 Km W of Matera (60436 inhabitants)
67 Km W of Altamura (70396 inhabitants)
70 Km E of Battipaglia (50786 inhabitants)
72 Km S of Cerignola (58396 inhabitants)
79 Km SW of Andria (100440 inhabitants)
87 Km SW of Barletta (94814 inhabitants)
89 Km E of Salerno (135261 inhabitants)
89 Km SW of Trani (56217 inhabitants)
91 Km SW of Bisceglie (55422 inhabitants)
91 Km E of Avellino (54857 inhabitants)
92 Km SW of Bitonto (55540 inhabitants)
93 Km SW of Molfetta (59874 inhabitants)
93 Km E of Cava de' Tirreni (53659 inhabitants)
96 Km S of Foggia (151991 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 2.0 1991-06-12
04:18:00
40.621 15.809 16 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 143289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-06-12 04:18:00 ± 0.362
Latitude 40.6210 ± 0.0190
Longitude 15.8090 ± 0.0242
Depth (km) 16 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 143289

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) 2939.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00008
Epicentral distance of station farthest from the epicenter (degree) 0.00461
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 143289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:13:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MGR.Z. 1991-06-12T04:18:19.85 10.0 undecidable manual SG 201 0.5106 0.19 0.4
--.SGO.Z. 1991-06-12T04:18:15.78 10.0 undecidable manual SG 260 0.3774 0.4 0.3
--.MGR.Z. 1991-06-12T04:18:11.54 10.0 undecidable manual PG 201 0.5106 -0.2 1.1
--.SGO.Z. 1991-06-12T04:18:08.93 10.0 undecidable manual PG 260 0.3774 -0.33 0.9
--.PG9.Z. 1991-06-12T04:18:06.00 10.0 undecidable manual SG 56 0.0111 -0.14 0.7
--.VG9.Z. 1991-06-12T04:18:06.60 10.0 undecidable manual SG 51 0.0777 -0.88 0
--.PG9.Z. 1991-06-12T04:18:04.20 10.0 undecidable manual PG 56 0.0111 0.27 1.4
--.VG9.Z. 1991-06-12T04:18:04.60 10.0 positive manual PG 51 0.0777 0.21 3.2
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