Earthquake with magnitude of Md 2.5 on date 23-05-2004 and time 01:33:45 (Italy) in region 1 km E Guardialfiera (CB)

A magnitude Md 2.5 earthquake occured in region: 1 km E Guardialfiera (CB), on

  • 22-05-2004 23:33:45 (UTC)
  • 23-05-2004 01:33:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8000, 14.8110 at 8 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 1 1065 1065
Casacalenda CB 7 2135 3200
Lupara CB 8 505 3705
Larino CB 8 6793 10498
Castelmauro CB 9 1505 12003
Provvidenti CB 9 119 12122
Acquaviva Collecroce CB 9 672 12794
Castelbottaccio CB 10 312 13106
Morrone del Sannio CB 10 587 13693
Palata CB 10 1726 15419
Civitacampomarano CB 10 417 15836
Montorio nei Frentani CB 11 437 16273
Montecilfone CB 12 1348 17621
Ripabottoni CB 12 514 18135
Castellino del Biferno CB 13 545 18680
Lucito CB 13 696 19376
Tavenna CB 13 718 20094
Montelongo CB 14 365 20459
San Felice del Molise CB 14 634 21093
Bonefro CB 15 1384 22477
Guglionesi CB 15 5321 27798
Petrella Tifernina CB 15 1170 28968
Montefalcone nel Sannio CB 16 1556 30524
Ururi CB 17 2693 33217
Montemitro CB 17 395 33612
Rotello CB 17 1212 34824
Mafalda CB 18 1211 36035
Montenero di Bisaccia CB 18 6675 42710
Santa Croce di Magliano CB 18 4435 47145
Roccavivara CB 18 815 47960
San Giuliano di Puglia CB 18 1042 49002
San Martino in Pensilis CB 18 4793 53795
Campolieto CB 19 839 54634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km W of San Severo (53905 inhabitants)
72 Km NW of Foggia (151991 inhabitants)
75 Km N of Benevento (60091 inhabitants)
81 Km SE of Chieti (51815 inhabitants)
89 Km SE of Pescara (121014 inhabitants)
90 Km NE of Caserta (76326 inhabitants)
94 Km W of Manfredonia (57279 inhabitants)
96 Km SE of Montesilvano (53738 inhabitants)
98 Km N of Avellino (54857 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 2.5
ML-VAX 1.8
2004-05-22
23:33:45
41.8 14.811 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 498169
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-05-22 23:33:45 ± 0.293
Latitude 41.8000 ± 0.0302
Longitude 14.8110 ± 0.0145
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 498169

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) 3564.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.01166
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 10
Type of magnitude Md
Reference to an origin 498169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:56:01

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 9
Type of magnitude ML
Reference to an origin 498169
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
--.SDI.Z. 2004-05-22T23:34:10.89 10.0 undecidable manual SG 263 0.7437 -1.11 0.2
--.SGO.Z. 2004-05-22T23:34:10.41 10.0 undecidable manual PN 163 1.2987 0.67 0.8
--.MRLC.Z. 2004-05-22T23:34:08.24 10.0 undecidable manual PN 153 1.1544 0.35 1.3
--.FG5.Z. 2004-05-22T23:34:07.73 10.0 undecidable manual SG 146 0.6105 -0.06 0.8
--.CSSN.Z. 2004-05-22T23:34:05.20 10.0 undecidable manual PG 170 0.9435 0.47 1.3
--.RGNG.Z. 2004-05-22T23:34:05.85 10.0 undecidable manual SG 102 0.5883 -1.05 0.2
--.RNI2.Z. 2004-05-22T23:34:04.57 10.0 undecidable manual SG 259 0.4995 0.63 0.5
--.MSC.Z. 2004-05-22T23:34:03.62 10.0 undecidable manual PG 226 0.8769 0.51 1.3
--.CPI2.Z. 2004-05-22T23:34:01.83 10.0 undecidable manual SG 240 0.4218 0.28 0.8
--.CII.Z. 2004-05-22T23:34:01.11 10.0 undecidable manual SG 258 0.3774 0.9 0.3
--.SDI.Z. 2004-05-22T23:34:00.50 10.0 undecidable manual PG 263 0.7437 -0.78 0.9
--.RGNG.Z. 2004-05-22T23:33:58.45 10.0 undecidable manual PG 102 0.5883 0.57 1.4
--.FG5.Z. 2004-05-22T23:33:57.43 10.0 undecidable manual PG 146 0.6105 -0.97 0.7
--.RNI2.Z. 2004-05-22T23:33:56.70 10.0 undecidable manual PG 259 0.4995 -0.1 2.1
--.SGG.Z. 2004-05-22T23:33:55.63 10.0 undecidable manual PG 218 0.5217 -0.98 0.7
--.FG2.Z. 2004-05-22T23:33:55.53 10.0 undecidable manual SG 89 0.2553 -0.45 0.7
--.CPI2.Z. 2004-05-22T23:33:54.48 10.0 undecidable manual PG 240 0.4218 -0.31 1.9
--.CII.Z. 2004-05-22T23:33:54.67 10.0 undecidable manual PG 258 0.3774 0.65 1.3
--.FG2.Z. 2004-05-22T23:33:51.91 10.0 undecidable manual PG 89 0.2553 0.33 1.9
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