Earthquake with magnitude of Md 2.3 on date 24-04-1997 and time 19:23:17 (Italy) in region 3 km NE Cercemaggiore (CB)

A magnitude Md 2.3 earthquake occured in region: 3 km NE Cercemaggiore (CB), on

  • 24-04-1997 17:23:17 (UTC)
  • 24-04-1997 19:23:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.4740, 14.7500 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
Cercemaggiore CB 3 3777 3777
Gildone CB 4 809 4586
Jelsi CB 6 1781 6367
Cercepiccola CB 7 681 7048
Riccia CB 7 5262 12310
Mirabello Sannitico CB 8 2180 14490
Ferrazzano CB 9 3344 17834
Castelpagano BN 9 1483 19317
San Giuliano del Sannio CB 9 1029 20346
Campodipietra CB 9 2570 22916
Santa Croce del Sannio BN 10 927 23843
Toro CB 11 1391 25234
Campobasso CB 12 49431 74665
San Giovanni in Galdo CB 13 580 75245
Sepino CB 13 1964 77209
Sassinoro BN 13 618 77827
Vinchiaturo CB 14 3324 81151
Circello BN 14 2388 83539
Colle Sannita BN 14 2431 85970
Gambatesa CB 14 1464 87434
Matrice CB 16 1115 88549
Pietracatella CB 16 1375 89924
Monacilioni CB 16 523 90447
Castelvetere in Val Fortore BN 16 1240 91687
Tufara CB 16 925 92612
Morcone BN 16 4932 97544
Baranello CB 17 2673 100217
Ripalimosani CB 17 3114 103331
Guardiaregia CB 18 801 104132
Busso CB 18 1273 105405
Campolieto CB 18 839 106244
Oratino CB 19 1641 107885
Macchia Valfortore CB 19 576 108461
Colle d'Anchise CB 20 807 109268
Sant'Elia a Pianisi CB 20 1818 111086

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Benevento (60091 inhabitants)
56 Km NE of Caserta (76326 inhabitants)
58 Km W of San Severo (53905 inhabitants)
62 Km N of Avellino (54857 inhabitants)
66 Km W of Foggia (151991 inhabitants)
67 Km NE of Acerra (59573 inhabitants)
71 Km NE of Afragola (65057 inhabitants)
72 Km NE of Aversa (53047 inhabitants)
74 Km NE of Casoria (77642 inhabitants)
76 Km NE of Giugliano in Campania (122974 inhabitants)
79 Km NE of Marano di Napoli (59874 inhabitants)
79 Km NE of Portici (55274 inhabitants)
81 Km NE of Ercolano (53709 inhabitants)
82 Km NE of Napoli (974074 inhabitants)
83 Km N of Scafati (50787 inhabitants)
83 Km NE of Torre del Greco (86275 inhabitants)
86 Km N of Cava de' Tirreni (53659 inhabitants)
88 Km N of Salerno (135261 inhabitants)
89 Km NE of Pozzuoli (81661 inhabitants)
89 Km N of Castellammare di Stabia (66466 inhabitants)
98 Km N of Battipaglia (50786 inhabitants)
99 Km W of Manfredonia (57279 inhabitants)
99 Km W of Cerignola (58396 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 1997-04-24
17:23:17
41.474 14.75 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 266499
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-04-24 17:23:17 ± 0.443
Latitude 41.4740 ± 0.0241
Longitude 14.7500 ± 0.0398
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 266499

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) 4265.2
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 9
Number of defining phases 9
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00899
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 266499
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:11:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SDI.Z. 1997-04-24T17:23:43.72 10.0 undecidable manual SG 288 0.7326 0.54 0.4
--.RFI.Z. 1997-04-24T17:23:37.38 10.0 undecidable manual SG 253 0.5883 -1.27 0.1
--.SGO.Z. 1997-04-24T17:23:36.58 10.0 undecidable manual PG 155 0.999 -0.53 0.9
--.SDI.Z. 1997-04-24T17:23:32.36 10.0 undecidable manual PG 288 0.7326 0.18 1.7
--.CI9.Z. 1997-04-24T17:23:31.40 10.0 undecidable manual PG 161 0.6327 0.6 1
--.RFI.Z. 1997-04-24T17:23:30.11 10.0 undecidable manual PG 253 0.5883 0.54 1.2
--.DUI.Z. 1997-04-24T17:23:23.47 10.0 undecidable manual PG 310 0.2775 -0.26 1.9
--.SMB1.Z. 1997-04-24T17:23:22.50 10.0 undecidable manual SG 196 0.0777 0.62 0.4
--.SMB1.Z. 1997-04-24T17:23:19.10 10.0 undecidable manual PG 196 0.0777 -0.52 1.3
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