Earthquake with magnitude of Md 2.1 on date 04-04-1997 and time 20:44:13 (Italy) in region 2 km S Santa Croce del Sannio (BN)

A magnitude Md 2.1 earthquake occured in region: 2 km S Santa Croce del Sannio (BN), on

  • 04-04-1997 18:44:13 (UTC)
  • 04-04-1997 20:44:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.3710, 14.7290 at 15 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
Santa Croce del Sannio BN 2 927 927
Sassinoro BN 6 618 1545
Morcone BN 6 4932 6477
Circello BN 7 2388 8865
Castelpagano BN 8 1483 10348
Colle Sannita BN 9 2431 12779
Campolattaro BN 9 1072 13851
Pontelandolfo BN 10 2167 16018
Sepino CB 10 1964 17982
Cercemaggiore CB 10 3777 21759
Cercepiccola CB 11 681 22440
Reino BN 12 1210 23650
San Giuliano del Sannio CB 12 1029 24679
Casalduni BN 13 1378 26057
Fragneto l'Abate BN 14 1049 27106
Fragneto Monforte BN 14 1840 28946
San Lupo BN 14 801 29747
San Marco dei Cavoti BN 15 3371 33118
Pietraroja BN 15 545 33663
Gildone CB 16 809 34472
Riccia CB 16 5262 39734
San Lorenzo Maggiore BN 16 2154 41888
Guardia Sanframondi BN 17 5078 46966
Pesco Sannita BN 17 1972 48938
Mirabello Sannitico CB 17 2180 51118
Guardiaregia CB 17 801 51919
Cerreto Sannita BN 17 3940 55859
Molinara BN 17 1618 57477
Jelsi CB 17 1781 59258
Ponte BN 18 2580 61838
Vinchiaturo CB 18 3324 65162
Pago Veiano BN 18 2406 67568
Ferrazzano CB 19 3344 70912
Cusano Mutri BN 19 4091 75003
San Lorenzello BN 19 2227 77230
San Giorgio La Molara BN 19 2994 80224
Castelvetere in Val Fortore BN 20 1240 81464
Paupisi BN 20 1633 83097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Benevento (60091 inhabitants)
47 Km NE of Caserta (76326 inhabitants)
51 Km N of Avellino (54857 inhabitants)
56 Km NE of Acerra (59573 inhabitants)
61 Km NE of Afragola (65057 inhabitants)
62 Km NE of Aversa (53047 inhabitants)
63 Km NE of Casoria (77642 inhabitants)
65 Km SW of San Severo (53905 inhabitants)
66 Km NE of Giugliano in Campania (122974 inhabitants)
68 Km NE of Portici (55274 inhabitants)
69 Km W of Foggia (151991 inhabitants)
69 Km NE of Marano di Napoli (59874 inhabitants)
70 Km NE of Ercolano (53709 inhabitants)
71 Km N of Scafati (50787 inhabitants)
71 Km NE of Napoli (974074 inhabitants)
72 Km NE of Torre del Greco (86275 inhabitants)
74 Km N of Cava de' Tirreni (53659 inhabitants)
77 Km N of Salerno (135261 inhabitants)
78 Km N of Castellammare di Stabia (66466 inhabitants)
79 Km NE of Pozzuoli (81661 inhabitants)
87 Km N of Battipaglia (50786 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 2.1 1997-04-04
18:44:13
41.371 14.729 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 265189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-04-04 18:44:13 ± 0.456
Latitude 41.3710 ± 0.0134
Longitude 14.7290 ± 0.0271
Depth (km) 15 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 265189

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) 2708.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
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) 0.00016
Epicentral distance of station farthest from the epicenter (degree) 0.00332
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 265189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:10:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.RMI2.Z. 1997-04-04T18:44:28.23 10.0 undecidable manual SG 251 0.3663 0.41 0.5
--.CPI2.Z. 1997-04-04T18:44:27.84 10.0 undecidable manual SG 304 0.3663 -0.15 0.7
--.RMI2.Z. 1997-04-04T18:44:22.52 10.0 undecidable manual PG 251 0.3663 0.57 1
--.VTB1.Z. 1997-04-04T18:44:22.27 10.0 undecidable manual SG 201 0.1998 -0.38 0.7
--.CPI2.Z. 1997-04-04T18:44:21.90 10.0 undecidable manual PG 304 0.3663 -0.16 1.7
--.SMB1.Z. 1997-04-04T18:44:19.39 10.0 undecidable manual SG 340 0.0222 0.56 0.5
--.VTB1.Z. 1997-04-04T18:44:18.17 10.0 undecidable manual PG 201 0.1998 -0.8 0.7
--.PSB1.Z. 1997-04-04T18:44:18.89 10.0 undecidable manual PG 157 0.1554 0.61 1.2
--.SMB1.Z. 1997-04-04T18:44:16.39 10.0 undecidable manual PG 340 0.0222 -0.37 1.8
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