Earthquake with magnitude of Md 2.4 on date 23-09-1998 and time 20:31:39 (UTC) in region 2 km E Castelluccio Superiore (PZ)

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

  • 23-09-1998 20:31:39 (UTC)
  • 23-09-1998 22:31:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.0160, 15.9980 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
Castelluccio Superiore PZ 2 824 824
Castelluccio Inferiore PZ 2 2131 2955
Laino Borgo CS 7 1921 4876
Rotonda PZ 8 3494 8370
Latronico PZ 8 4556 12926
Viggianello PZ 9 3025 15951
Laino Castello CS 9 848 16799
Episcopia PZ 11 1434 18233
San Severino Lucano PZ 12 1563 19796
Mormanno CS 14 3027 22823
Lauria PZ 14 12919 35742
Carbone PZ 16 638 36380
Castelsaraceno PZ 17 1384 37764
Aieta CS 18 823 38587
Papasidero CS 18 734 39321
Nemoli PZ 18 1495 40816
Teana PZ 18 613 41429
Fardella PZ 18 627 42056
Trecchina PZ 19 2316 44372
Francavilla in Sinni PZ 19 4215 48587
Calvera PZ 19 387 48974

Municipalities with at least 50000 inhabitants

An earthquake occurred to
71 Km S of Potenza (67122 inhabitants)
83 Km N of Cosenza (67546 inhabitants)
89 Km SW of Matera (60436 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
1998-09-23
20:31:39
40.016 15.998 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 351669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-09-23 20:31:39 ± 0.173
Latitude 40.0160 ± 0.0159
Longitude 15.9980 ± 0.0138
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 351669

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) 2119.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.01109
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 351669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:29:28

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 351669
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
--.SGO.Z. 1998-09-23T20:32:07.00 10.0 undecidable manual SG 316 0.7548 -0.07 0.7
--.CI9.Z. 1998-09-23T20:32:03.90 10.0 undecidable manual PN 319 1.11 0.9 0.3
--.GRI.Z. 1998-09-23T20:32:03.96 10.0 undecidable manual PN 164 1.2321 0.22 1.1
--.TDS.Z. 1998-09-23T20:31:57.27 10.0 undecidable manual SG 143 0.444 0.32 0.6
--.MU9.Z. 1998-09-23T20:31:57.67 10.0 undecidable manual PG 333 0.8325 0.52 1
--.SL9.Z. 1998-09-23T20:31:56.73 10.0 undecidable manual SG 323 0.4551 -1.05 0.1
--.SGO.Z. 1998-09-23T20:31:55.10 10.0 undecidable manual PG 316 0.7548 -0.5 1.1
--.MGR.Z. 1998-09-23T20:31:54.55 10.0 undecidable manual SG 290 0.3552 0.64 0.4
--.ORI.Z. 1998-09-23T20:31:54.30 10.0 undecidable manual SG 84 0.3441 0.78 0.2
--.SL9.Z. 1998-09-23T20:31:49.75 10.0 undecidable manual PG 323 0.4551 -0.48 1.2
--.TDS.Z. 1998-09-23T20:31:49.11 10.0 undecidable manual PG 143 0.444 -0.65 0.9
--.MGR.Z. 1998-09-23T20:31:48.20 10.0 undecidable manual PG 290 0.3552 0.02 1.9
--.ORI.Z. 1998-09-23T20:31:47.48 10.0 positive manual PG 84 0.3441 -0.14 3.6
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