Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.4 on date 30-09-1990 and time 03:47:41 (Italy) in region 2 km E Potenza (PZ)

A magnitude Md 2.4 earthquake occured in region: 2 km E Potenza (PZ), on

  • 30-09-1990 02:47:41 (UTC)
  • 30-09-1990 03:47:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.6470, 15.8270 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.

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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
Vaglio Basilicata PZ 8 2047 69169
Pignola PZ 9 6962 76131
Brindisi Montagna PZ 10 908 77039
Pietragalla PZ 12 4160 81199
Cancellara PZ 13 1309 82508
Avigliano PZ 13 11577 94085
Tito PZ 14 7332 101417
Ruoti PZ 15 3579 104996
Abriola PZ 15 1531 106527
Trivigno PZ 16 678 107205
Picerno PZ 16 5985 113190
Tolve PZ 16 3251 116441
Anzi PZ 17 1696 118137
Albano di Lucania PZ 19 1435 119572
Calvello PZ 19 1948 121520
Oppido Lucano PZ 19 3813 125333
Acerenza PZ 19 2402 127735
Satriano di Lucania PZ 20 2374 130109
Baragiano PZ 20 2671 132780

Municipalities with at least 50000 inhabitants

An earthquake occurred to
2 Km E of Potenza (67122 inhabitants)
64 Km W of Altamura (70396 inhabitants)
65 Km W of Matera (60436 inhabitants)
69 Km S of Cerignola (58396 inhabitants)
71 Km E of Battipaglia (50786 inhabitants)
76 Km SW of Andria (100440 inhabitants)
84 Km SW of Barletta (94814 inhabitants)
86 Km SW of Trani (56217 inhabitants)
87 Km SW of Bisceglie (55422 inhabitants)
89 Km SW of Bitonto (55540 inhabitants)
90 Km E of Salerno (135261 inhabitants)
90 Km SW of Molfetta (59874 inhabitants)
92 Km E of Avellino (54857 inhabitants)
94 Km S of Foggia (151991 inhabitants)
95 Km E of Cava de' Tirreni (53659 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 2.4
ML-VAX 1.7 		1990-09-30
02:47:41		 40.647 15.827 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 127979
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-09-30 02:47:41 ± 0.122
Latitude 40.6470 ± 0.0068
Longitude 15.8270 ± 0.0101
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 127979

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) 1132.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.01133
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 127979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:59:01

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 127979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FG2.Z. 1990-09-30T02:48:22.13 10.0 undecidable manual SN 336 1.2543 0.43 0.3
--.BSS.Z. 1990-09-30T02:48:07.82 10.0 undecidable manual SG 279 0.7659 -0.06 0.7
--.FG2.Z. 1990-09-30T02:48:04.60 10.0 undecidable manual PN 336 1.2543 0 1.4
--.CDT.Z. 1990-09-30T02:48:01.00 10.0 undecidable manual SG 37 0.5439 0.17 0.7
--.MGR.Z. 1990-09-30T02:48:00.78 10.0 undecidable manual SG 201 0.5439 -0.01 0.8
--.BSS.Z. 1990-09-30T02:47:57.60 10.0 undecidable manual PG 279 0.7659 0.44 0.8
--.ORI.Z. 1990-09-30T02:47:57.00 10.0 undecidable manual PG 141 0.7548 0.59 0.4
--.SGO.Z. 1990-09-30T02:47:56.30 10.0 undecidable manual SG 257 0.3996 -0.06 0.8
--.CDT.Z. 1990-09-30T02:47:52.00 10.0 undecidable manual PG 37 0.5439 -0.55 0.6
--.MGR.Z. 1990-09-30T02:47:52.26 10.0 positive manual PG 201 0.5439 -0.27 2.9
--.SGO.Z. 1990-09-30T02:47:49.67 10.0 undecidable manual PG 257 0.3996 -0.14 1.8
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