Earthquake with magnitude of Md 2.3 on date 06-04-2004 and time 11:42:45 (Italy) in region 4 km S Guardialfiera (CB)

A magnitude Md 2.3 earthquake occured in region: 4 km S Guardialfiera (CB), on

  • 06-04-2004 09:42:45 (UTC)
  • 06-04-2004 11:42:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7640, 14.7900 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Guardialfiera CB 4 1065 1065
Lupara CB 5 505 1570
Casacalenda CB 6 2135 3705
Provvidenti CB 6 119 3824
Morrone del Sannio CB 6 587 4411
Castelbottaccio CB 7 312 4723
Castellino del Biferno CB 8 545 5268
Ripabottoni CB 8 514 5782
Civitacampomarano CB 8 417 6199
Lucito CB 9 696 6895
Castelmauro CB 10 1505 8400
Larino CB 11 6793 15193
Petrella Tifernina CB 11 1170 16363
Montorio nei Frentani CB 12 437 16800
Acquaviva Collecroce CB 12 672 17472
Montelongo CB 14 365 17837
Bonefro CB 14 1384 19221
Palata CB 14 1726 20947
Campolieto CB 14 839 21786
San Felice del Molise CB 16 634 22420
Montecilfone CB 16 1348 23768
Montagano CB 16 1086 24854
Tavenna CB 16 718 25572
Montefalcone nel Sannio CB 17 1556 27128
Limosano CB 17 768 27896
San Giuliano di Puglia CB 17 1042 28938
Monacilioni CB 17 523 29461
Sant'Elia a Pianisi CB 17 1818 31279
Sant'Angelo Limosano CB 17 352 31631
San Biase CB 17 189 31820
Roccavivara CB 18 815 32635
Santa Croce di Magliano CB 18 4435 37070
Matrice CB 18 1115 38185
Rotello CB 18 1212 39397
Montemitro CB 18 395 39792
Colletorto CB 19 1938 41730
Guglionesi CB 19 5321 47051
Ururi CB 19 2693 49744
San Giovanni in Galdo CB 20 580 50324
Ripalimosani CB 20 3114 53438
Trivento CB 20 4730 58168

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km W of San Severo (53905 inhabitants)
70 Km N of Benevento (60091 inhabitants)
71 Km W of Foggia (151991 inhabitants)
83 Km SE of Chieti (51815 inhabitants)
86 Km NE of Caserta (76326 inhabitants)
91 Km SE of Pescara (121014 inhabitants)
94 Km N of Avellino (54857 inhabitants)
95 Km W of Manfredonia (57279 inhabitants)
97 Km NE of Acerra (59573 inhabitants)
99 Km SE of Montesilvano (53738 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 2.3
ML-VAX 1.8
2004-04-06
09:42:45
41.764 14.79 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 496039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-04-06 09:42:45 ± 0.156
Latitude 41.7640 ± 0.0123
Longitude 14.7900 ± 0.0086
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 496039

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) 1541.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 175
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.01020
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 496039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:53:47

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 496039
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
--.MRLC.Z. 2004-04-06T09:43:23.80 10.0 undecidable manual SN 152 1.1322 0.18 0.5
--.SDI.Z. 2004-04-06T09:43:10.46 10.0 undecidable manual SG 266 0.7326 -0.84 0.1
--.RGNG.Z. 2004-04-06T09:43:07.46 10.0 undecidable manual SG 98 0.5883 0.38 0.4
--.MRLC.Z. 2004-04-06T09:43:07.23 10.0 undecidable manual PN 152 1.1322 -0.18 1.1
--.FG5.Z. 2004-04-06T09:43:06.60 10.0 undecidable manual SG 143 0.5883 -0.44 0.4
--.RNI2.Z. 2004-04-06T09:43:02.38 10.0 undecidable manual SG 262 0.4773 -0.79 0.1
--.SDI.Z. 2004-04-06T09:43:00.91 10.0 undecidable manual PG 266 0.7326 0.62 0.4
--.CII.Z. 2004-04-06T09:43:00.70 10.0 undecidable manual SG 263 0.3552 0.64 0.2
--.FG5.Z. 2004-04-06T09:42:58.34 10.0 undecidable manual PG 143 0.5883 0.51 0.7
--.RGNG.Z. 2004-04-06T09:42:57.70 10.0 undecidable manual PG 98 0.5883 -0.16 1.7
--.RNI2.Z. 2004-04-06T09:42:55.73 10.0 undecidable manual PG 262 0.4773 0.13 1.8
--.FG2.Z. 2004-04-06T09:42:55.90 10.0 undecidable manual SG 81 0.2775 -0.38 0.5
--.CII.Z. 2004-04-06T09:42:53.16 10.0 undecidable manual PG 263 0.3552 -0.28 1.5
--.FG2.Z. 2004-04-06T09:42:51.64 10.0 undecidable manual PG 81 0.2775 0.02 2
--.CIGN.E. 2004-04-06T09:42:51.40 10.0 undecidable manual SG 141 0.1332 -0.08 0.8
--.CIGN.Z. 2004-04-06T09:42:48.58 10.0 negative manual PG 141 0.1332 -0.05 3.9
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