Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.4 on date 31-10-2002 and time 14:32:08 (UTC) in region 1 km W Casacalenda (CB)

A magnitude Md 2.4 earthquake occured in region: 1 km W Casacalenda (CB), on

  • 31-10-2002 14:32:08 (UTC)
  • 31-10-2002 15:32:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7430, 14.8360 at 7 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
Casacalenda CB 1 2135 2135
Provvidenti CB 3 119 2254
Morrone del Sannio CB 6 587 2841
Ripabottoni CB 6 514 3355
Guardialfiera CB 8 1065 4420
Montorio nei Frentani CB 8 437 4857
Lupara CB 9 505 5362
Larino CB 9 6793 12155
Bonefro CB 9 1384 13539
Montelongo CB 9 365 13904
Castellino del Biferno CB 10 545 14449
Castelbottaccio CB 11 312 14761
Lucito CB 12 696 15457
San Giuliano di Puglia CB 12 1042 16499
Civitacampomarano CB 13 417 16916
Petrella Tifernina CB 13 1170 18086
Campolieto CB 13 839 18925
Santa Croce di Magliano CB 13 4435 23360
Sant'Elia a Pianisi CB 14 1818 25178
Rotello CB 14 1212 26390
Castelmauro CB 14 1505 27895
Colletorto CB 14 1938 29833
Monacilioni CB 15 523 30356
Acquaviva Collecroce CB 16 672 31028
Ururi CB 17 2693 33721
Palata CB 17 1726 35447
Montagano CB 17 1086 36533
Matrice CB 18 1115 37648
Macchia Valfortore CB 18 576 38224
Montecilfone CB 18 1348 39572
Pietracatella CB 18 1375 40947
San Giovanni in Galdo CB 19 580 41527
Limosano CB 19 768 42295
Tavenna CB 20 718 43013
Toro CB 20 1391 44404
Guglionesi CB 20 5321 49725
San Felice del Molise CB 20 634 50359

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km W of San Severo (53905 inhabitants)
67 Km W of Foggia (151991 inhabitants)
68 Km N of Benevento (60091 inhabitants)
85 Km NE of Caserta (76326 inhabitants)
87 Km SE of Chieti (51815 inhabitants)
91 Km W of Manfredonia (57279 inhabitants)
92 Km N of Avellino (54857 inhabitants)
95 Km SE of Pescara (121014 inhabitants)
97 Km NE of Acerra (59573 inhabitants)
100 Km NE of Aversa (53047 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 1.9 		2002-10-31
14:32:08		 41.743 14.836 7 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 457459
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-10-31 14:32:08 ± 0.534
Latitude 41.7430 ± 0.0196
Longitude 14.8360 ± 0.0104
Depth (km) 7 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 457459

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) 2346.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00372
Epicentral distance of station farthest from the epicenter (degree) 0.01522
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 457459
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:13:06

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 457459
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
--.CSSN.Z. 2002-10-31T14:32:40.65 10.0 undecidable manual SG 170 0.888 1 0
--.MGR.Z. 2002-10-31T14:32:38.13 10.0 undecidable manual PN 160 1.6872 -0.15 1
--.FGMS.Z. 2002-10-31T14:32:37.57 10.0 undecidable manual SG 91 0.8214 -0.17 0.6
--.SGO.Z. 2002-10-31T14:32:31.93 10.0 undecidable manual PN 162 1.2321 -0.05 1.4
--.RGNG.Z. 2002-10-31T14:32:29.15 10.0 undecidable manual SG 96 0.555 0.08 0.7
--.FG5.Z. 2002-10-31T14:32:28.28 10.0 undecidable manual SG 144 0.555 -0.75 0
--.CSSN.Z. 2002-10-31T14:32:26.54 10.0 undecidable manual PG 170 0.888 0.03 1.7
--.FGMS.Z. 2002-10-31T14:32:25.77 10.0 undecidable manual PG 91 0.8214 0.36 0.9
--.CPI2.Z. 2002-10-31T14:32:24.53 10.0 undecidable manual SG 247 0.4107 0.15 0.6
--.FG5.Z. 2002-10-31T14:32:20.20 10.0 undecidable manual PG 144 0.555 -0.18 1.5
--.RGNG.Z. 2002-10-31T14:32:20.42 10.0 undecidable manual PG 96 0.555 0.02 1.8
--.CPI2.Z. 2002-10-31T14:32:17.56 10.0 undecidable manual PG 247 0.4107 -0.14 1.6
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