Earthquake with magnitude of Md 2.0 on date 18-06-1991 and time 15:11:44 (UTC) in region 6 km W Abriola (PZ)

A magnitude Md 2.0 earthquake occured in region: 6 km W Abriola (PZ), on

  • 18-06-1991 15:11:44 (UTC)
  • 18-06-1991 17:11:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.5150, 15.7460 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
Abriola PZ 6 1531 1531
Sasso di Castalda PZ 7 835 2366
Pignola PZ 8 6962 9328
Tito PZ 10 7332 16660
Calvello PZ 10 1948 18608
Satriano di Lucania PZ 10 2374 20982
Marsico Nuovo PZ 11 4098 25080
Brienza PZ 11 4078 29158
Potenza PZ 15 67122 96280
Anzi PZ 15 1696 97976
Paterno PZ 15 3368 101344
Sant'Angelo Le Fratte PZ 16 1429 102773
Picerno PZ 17 5985 108758
Marsicovetere PZ 17 5546 114304
Atena Lucana SA 17 2336 116640
Savoia di Lucania PZ 17 1127 117767
Sala Consilina SA 18 12664 130431
Brindisi Montagna PZ 20 908 131339

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SW of Potenza (67122 inhabitants)
65 Km E of Battipaglia (50786 inhabitants)
74 Km W of Matera (60436 inhabitants)
77 Km W of Altamura (70396 inhabitants)
85 Km S of Cerignola (58396 inhabitants)
85 Km E of Salerno (135261 inhabitants)
90 Km E of Cava de' Tirreni (53659 inhabitants)
92 Km SE of Avellino (54857 inhabitants)
92 Km SW of Andria (100440 inhabitants)
100 Km SW of Barletta (94814 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 1991-06-18
15:11:44
40.515 15.746 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 143689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-06-18 15:11:44 ± 0.358
Latitude 40.5150 ± 0.0234
Longitude 15.7460 ± 0.0393
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 143689

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) 4218.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00356
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 143689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:14:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MGR.Z. 1991-06-18T15:12:01.83 10.0 undecidable manual SG 201 0.3996 1.18 0.2
--.SGO.Z. 1991-06-18T15:11:59.47 10.0 undecidable manual SG 277 0.333 1.46 0.1
--.MGR.Z. 1991-06-18T15:11:53.53 10.0 undecidable manual PG 201 0.3996 -0.5 1.5
--.VG9.Z. 1991-06-18T15:11:52.77 10.0 undecidable manual SG 35 0.1887 0.05 0.9
--.SGO.Z. 1991-06-18T15:11:51.53 10.0 undecidable manual PG 277 0.333 -0.97 0.9
--.PG9.Z. 1991-06-18T15:11:50.40 10.0 undecidable manual SG 27 0.1221 -0.18 0.9
--.VG9.Z. 1991-06-18T15:11:49.84 10.0 undecidable manual PG 35 0.1887 0.39 2
--.PG9.Z. 1991-06-18T15:11:46.52 10.0 undecidable manual PG 27 0.1221 -1.48 0
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