Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 02-04-2023 and time 04:43:59 (UTC) in region 2 km W Montagano (CB)

A magnitude ML 1.7 earthquake occured in region: 2 km W Montagano (CB), on

  • 02-04-2023 04:43:59 (UTC)
  • 02-04-2023 06:43:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6440, 14.6550 at 23 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
Montagano CB 2 1086 1086
Ripalimosani CB 4 3114 4200
Limosano CB 5 768 4968
Matrice CB 6 1115 6083
Petrella Tifernina CB 6 1170 7253
Sant'Angelo Limosano CB 7 352 7605
Castropignano CB 8 947 8552
Oratino CB 9 1641 10193
Castellino del Biferno CB 9 545 10738
Campolieto CB 9 839 11577
Campobasso CB 9 49431 61008
Fossalto CB 10 1345 62353
San Biase CB 10 189 62542
San Giovanni in Galdo CB 10 580 63122
Lucito CB 10 696 63818
Torella del Sannio CB 11 795 64613
Pietracupa CB 12 215 64828
Toro CB 12 1391 66219
Campodipietra CB 12 2570 68789
Busso CB 12 1273 70062
Casalciprano CB 12 564 70626
Ferrazzano CB 13 3344 73970
Morrone del Sannio CB 13 587 74557
Castelbottaccio CB 13 312 74869
Molise CB 13 167 75036
Monacilioni CB 14 523 75559
Ripabottoni CB 14 514 76073
Mirabello Sannitico CB 14 2180 78253
Lupara CB 15 505 78758
Baranello CB 15 2673 81431
Civitacampomarano CB 16 417 81848
Duronia CB 16 405 82253
Provvidenti CB 16 119 82372
Gildone CB 16 809 83181
Salcito CB 17 683 83864
Sant'Elena Sannita IS 17 275 84139
Vinchiaturo CB 18 3324 87463
Frosolone IS 18 3170 90633
Bagnoli del Trigno IS 18 735 91368
Spinete CB 18 1320 92688
Trivento CB 18 4730 97418
Jelsi CB 18 1781 99199
Colle d'Anchise CB 19 807 100006
Sant'Elia a Pianisi CB 19 1818 101824
Casacalenda CB 19 2135 103959
Pietracatella CB 20 1375 105334

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km N of Benevento (60091 inhabitants)
61 Km W of San Severo (53905 inhabitants)
69 Km NE of Caserta (76326 inhabitants)
77 Km W of Foggia (151991 inhabitants)
81 Km N of Acerra (59573 inhabitants)
82 Km N of Avellino (54857 inhabitants)
83 Km NE of Aversa (53047 inhabitants)
85 Km NE of Afragola (65057 inhabitants)
87 Km NE of Casoria (77642 inhabitants)
88 Km NE of Giugliano in Campania (122974 inhabitants)
88 Km SE of Chieti (51815 inhabitants)
91 Km NE of Marano di Napoli (59874 inhabitants)
94 Km N of Portici (55274 inhabitants)
95 Km NE of Napoli (974074 inhabitants)
96 Km N of Ercolano (53709 inhabitants)
98 Km N of Torre del Greco (86275 inhabitants)
98 Km SE of Pescara (121014 inhabitants)
100 Km N of Scafati (50787 inhabitants)
100 Km NE of Pozzuoli (81661 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 		ML 1.7 2023-04-02
04:43:59		 41.6435 14.6547 23 2024-03-01
17:18:03		 Bollettino Sismico Italiano INGV 116373201
Reviewed
Rev100 		ML 1.7 2023-04-02
04:43:59		 41.6258 14.6228 22 2023-04-02
04:49:33		 Sala Sismica INGV-Roma 115961981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-02 04:43:59 ± 0.17
Latitude 41.6435 ± 0.0090
Longitude 14.6547 ± 0.0084
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116373201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 799
Semi-minor axis of confidence ellipse (meter) 602
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.93619
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 116373201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-09 13:20:05

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 115961981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-02 04:49:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2023-04-02T04:45:56.41 3.0 undecidable manual Sg 17.450001 0
GU.PZZ.HHZ. 2023-04-02T04:45:49.35 3.0 positive manual Pg 20.01 0
IV.MSRU.HHZ. 2023-04-02T04:45:45.25 3.0 undecidable manual Sg 12.11 0
IV.GRI.EHZ. 2023-04-02T04:45:33.58 3.0 undecidable manual Sg 8.04 0
IV.TRIF.CHZ. 2023-04-02T04:45:26.54 3.0 undecidable manual Sn 2.02 0
IV.FOSV.EHZ. 2023-04-02T04:45:04.30 3.0 undecidable manual Sn 3.82 0
IV.ORI.HHZ. 2023-04-02T04:45:00.14 3.0 undecidable manual Sn -0.21 0
IV.BARO.EHZ. 2023-04-02T04:44:38.04 3.0 undecidable manual Pg 6.18 0
IV.VVLD.HHZ. 2023-04-02T04:44:25.58 0.6 undecidable manual S 287 88.9443 99 -0.1 43
OT.OT12.EHZ. 2023-04-02T04:44:18.01 0.3 undecidable manual P 90 103.9182 98 1.23 41
IV.VAGA.HHZ. 2023-04-02T04:44:14.60 0.6 undecidable manual S 234 43.1235 111 0.79 40
OT.OT16.EHN. 2023-04-02T04:44:14.65 0.6 undecidable manual S 63 47.619 109 -0.3 46
IV.RNI2.HHZ. 2023-04-02T04:44:14.24 0.6 undecidable manual S 279 42.1245 112 0.68 43
IV.VVLD.HHZ. 2023-04-02T04:44:13.76 0.3 undecidable manual P 287 88.9443 99 -0.74 53
IT.GLNS.HNZ. 2023-04-02T04:44:13.04 0.6 undecidable manual S 36 36.9297 115 0.75 40
IV.MELA.HHZ. 2023-04-02T04:44:12.91 0.6 undecidable manual S 80 39.7269 113 -0.07 49
IV.INTR.HHZ. 2023-04-02T04:44:11.97 0.3 undecidable manual P 304 74.2701 101 -0.29 64
IV.SGG.HHN. 2023-04-02T04:44:11.80 0.6 undecidable manual S 219 36.5412 115 -0.39 45
IT.MCLF.HNE. 2023-04-02T04:44:11.03 0.6 undecidable manual S 28 32.3454 119 -0.18 48
IV.PABO.HHN. 2023-04-02T04:44:10.34 0.6 undecidable manual S 298 25.0527 127 0.78 42
IV.SACR.HHZ. 2023-04-02T04:44:10.00 0.6 undecidable manual S 171 27.6501 124 -0.12 49
IV.GATE.HHZ. 2023-04-02T04:44:10.35 0.6 undecidable manual S 124 25.6521 126 0.66 41
IT.PLTA.HNN. 2023-04-02T04:44:10.70 0.6 undecidable manual S 22 29.1486 122 0.23 48
IT.LRNO.HNZ. 2023-04-02T04:44:09.32 0.6 undecidable manual S 50 28.4493 123 -0.99 37
IV.MOCO.HNE. 2023-04-02T04:44:09.52 0.3 undecidable manual P 126 51.7038 107 0.63 60
OT.OT11.EHE. 2023-04-02T04:44:09.66 0.3 undecidable manual P 104 58.2972 105 -0.2 69
IV.CIGN.HHZ. 2023-04-02T04:44:09.29 0.6 undecidable manual S 87 20.7681 133 0.61 42
IV.RNI2.HHZ. 2023-04-02T04:44:07.55 0.3 undecidable manual P 279 42.1245 112 0.05 73
IV.SGG.HHN. 2023-04-02T04:44:07.18 0.6 undecidable manual P 219 36.5412 115 0.47 45
IV.VAGA.HHZ. 2023-04-02T04:44:07.67 0.1 undecidable manual P 234 43.1235 111 0.03 97
OT.OT16.EHN. 2023-04-02T04:44:07.81 0.1 undecidable manual P 63 47.619 109 -0.49 87
IT.MCLF.HNE. 2023-04-02T04:44:06.01 0.3 undecidable manual P 28 32.3454 119 -0.13 72
IT.GLNS.HNZ. 2023-04-02T04:44:06.91 0.3 undecidable manual P 36 36.9297 115 0.15 71
IV.BSSO.HHZ. 2023-04-02T04:44:06.58 0.6 undecidable manual S 205 11.877 149 -0.61 44
IV.MELA.HHZ. 2023-04-02T04:44:06.87 0.1 positive manual P 80 39.7269 113 -0.29 93
IT.PLTA.HNN. 2023-04-02T04:44:05.65 0.3 undecidable manual P 22 29.1486 122 -0.06 73
IT.LRNO.HNZ. 2023-04-02T04:44:05.53 0.3 undecidable manual P 50 28.4493 123 -0.09 74
IV.PABO.HHN. 2023-04-02T04:44:05.30 0.3 undecidable manual P 298 25.0527 127 0.11 74
IV.SACR.HHZ. 2023-04-02T04:44:05.22 0.1 negative manual P 171 27.6501 124 -0.29 94
IV.GATE.HHZ. 2023-04-02T04:44:05.51 0.1 undecidable manual P 124 25.6521 126 0.25 94
IV.CIGN.HHZ. 2023-04-02T04:44:04.60 0.1 undecidable manual P 87 20.7681 133 -0.08 100
IV.BSSO.HHZ. 2023-04-02T04:44:03.45 0.1 negative manual P 205 11.877 149 -0.37 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HHE. ML:2.0 0.0006105 0.44 AML other m 2023-04-02T04:44:07.41
IV.BSSO.HNE. ML:2.0 0.000602 0.42 AML other m 2023-04-02T04:44:07.41
IV.BSSO.HHN. ML:1.9 0.000545 0.34 AML other m 2023-04-02T04:44:07.64
IV.BSSO.HNN. ML:1.9 0.0005445 0.32 AML other m 2023-04-02T04:44:07.65
IV.GATE.HNE. ML:1.5 0.00013800000000000002 1 AML other m 2023-04-02T04:44:12.58
IV.MELA.HHN. ML:1.6 0.00010755000000000001 0.66 AML other m 2023-04-02T04:44:13.66
IV.RNI2.HHE. ML:1.6 0.0001225 0.48 AML other m 2023-04-02T04:44:14.49
IV.MELA.HHE. ML:1.7 0.000134 0.46 AML other m 2023-04-02T04:44:15.01
IV.RNI2.HHN. ML:1.7 0.00013000000000000002 0.48 AML other m 2023-04-02T04:44:15.56
IV.GATE.HNN. ML:1.4 0.0001002 0.92 AML other m 2023-04-02T04:44:16.13
IV.VAGA.HHE. ML:1.5 0.000079 0.52 AML other m 2023-04-02T04:44:18.37
IV.VAGA.HHN. ML:1.5 0.00009705 0.76 AML other m 2023-04-02T04:44:19.07
IV.INTR.HHN. ML:1.9 0.0001194 1.22 AML other m 2023-04-02T04:44:22.80
IV.INTR.HHE. ML:1.8 0.00008345 1.74 AML other m 2023-04-02T04:44:23.02
IV.VVLD.HHE. ML:1.5 0.0000328 0.42 AML other m 2023-04-02T04:44:33.61
IV.VVLD.HHN. ML:1.4 0.000028999999999999997 1.2 AML other m 2023-04-02T04:44:34.92
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