Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 29-04-2023 and time 18:03:00 (Italy) in region 2 km W Montagano (CB)

A magnitude ML 1.6 earthquake occured in region: 2 km W Montagano (CB), on

  • 29-04-2023 16:03:00 (UTC)
  • 29-04-2023 18:03:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6440, 14.6560 at 24 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 10 49431 61008
San Biase CB 10 189 61197
San Giovanni in Galdo CB 10 580 61777
Fossalto CB 10 1345 63122
Lucito CB 10 696 63818
Torella del Sannio CB 11 795 64613
Toro CB 12 1391 66004
Pietracupa CB 12 215 66219
Campodipietra CB 12 2570 68789
Casalciprano CB 13 564 69353
Busso CB 13 1273 70626
Ferrazzano CB 13 3344 73970
Morrone del Sannio CB 13 587 74557
Castelbottaccio CB 13 312 74869
Monacilioni CB 13 523 75392
Molise CB 14 167 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
Provvidenti CB 16 119 81967
Duronia CB 16 405 82372
Gildone CB 16 809 83181
Salcito CB 17 683 83864
Sant'Elena Sannita IS 17 275 84139
Vinchiaturo CB 18 3324 87463
Spinete CB 18 1320 88783
Frosolone IS 18 3170 91953
Bagnoli del Trigno IS 18 735 92688
Trivento CB 18 4730 97418
Jelsi CB 18 1781 99199
Sant'Elia a Pianisi CB 18 1818 101017
Colle d'Anchise CB 19 807 101824
Casacalenda CB 19 2135 103959
Pietracatella CB 19 1375 105334

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km N of Benevento (60091 inhabitants)
60 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)
88 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)
95 Km N of Portici (55274 inhabitants)
96 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 1.6 2023-04-29
16:03:00		 41.644 14.6563 24 2024-03-01
17:18:13		 Bollettino Sismico Italiano INGV 119398521
Reviewed
Rev100 		ML 1.6 2023-04-29
16:03:00		 41.6415 14.6668 22 2023-04-29
16:20:53		 Sala Sismica INGV-Roma 116876281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-29 16:03:00 ± 0.13
Latitude 41.6440 ± 0.0045
Longitude 14.6563 ± 0.0060
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 119398521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 523
Semi-minor axis of confidence ellipse (meter) 183
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 342
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.81838
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 116876281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-29 16:20:53

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 119398521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-26 15:38:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
1J.FX14.HHZ.00 2023-04-29T16:04:54.05 3.0 undecidable manual Sg 10.19 0
IV.PLMA.HHZ. 2023-04-29T16:04:53.54 3.0 undecidable manual Sn 0.12 0
IV.CMDO.HHZ. 2023-04-29T16:04:15.56 3.0 undecidable manual Pg 11.73 0
IV.MFNL.HHZ. 2023-04-29T16:04:15.18 3.0 negative manual Pg 13.45 0
AC.PUK.HHZ. 2023-04-29T16:04:15.99 3.0 undecidable manual Pg 16.35 0
7C.SPAOL.HNZ. 2023-04-29T16:04:07.59 3.0 negative manual Pn 5.4 0
IV.CING.HHZ. 2023-04-29T16:04:02.94 3.0 undecidable manual Sg 4.17 0
IV.ATCC.EHZ. 2023-04-29T16:04:01.98 3.0 undecidable manual Sn 0.61 0
IV.SFI.EHZ. 2023-04-29T16:03:55.50 3.0 undecidable manual Pg 8.25 0
IV.TDS.HHZ. 2023-04-29T16:03:40.13 3.0 undecidable manual Pn 1.86 0
IV.CET2.HHZ. 2023-04-29T16:03:37.06 3.0 negative manual Pn -0.86 0
IV.INTR.HHZ. 2023-04-29T16:03:23.10 0.6 undecidable manual S 304 74.37 102 -0.19 45
IV.LPEL.HHZ. 2023-04-29T16:03:19.80 0.6 undecidable manual S 319 59.3961 105 0.4 42
IV.MOCO.HHZ. 2023-04-29T16:03:18.56 0.6 undecidable manual S 126 51.6039 108 1.15 33
IV.PSB1.HHZ. 2023-04-29T16:03:17.00 0.6 undecidable manual S 165 48.4182 109 0.4 45
IV.SGRT.HHZ. 2023-04-29T16:03:16.49 0.3 undecidable manual P 82 90.8424 99 0.26 63
IV.RNI2.HNN. 2023-04-29T16:03:15.50 0.6 undecidable manual S 279 42.2244 112 0.43 44
IV.SGG.HHN. 2023-04-29T16:03:14.20 0.6 undecidable manual S 219 36.6411 116 0.49 44
IT.GLNS.HNZ. 2023-04-29T16:03:14.19 0.6 undecidable manual S 36 36.741 116 0.46 44
IV.MELA.HHZ. 2023-04-29T16:03:14.30 0.3 undecidable manual S 80 39.627 114 -0.11 72
IV.INTR.HHZ. 2023-04-29T16:03:13.27 0.3 undecidable manual P 304 74.37 102 -0.45 64
IV.PTRJ.HHZ. 2023-04-29T16:03:12.70 0.6 undecidable manual S 199 32.8449 119 -0.09 48
IT.LRNO.HNZ. 2023-04-29T16:03:12.35 0.6 undecidable manual S 50 28.3494 124 0.58 43
IT.MCLF.HNE. 2023-04-29T16:03:12.33 0.6 undecidable manual S 28 32.2455 120 -0.34 47
IV.SACR.HHZ. 2023-04-29T16:03:11.30 0.6 undecidable manual S 171 27.6501 124 -0.32 46
IV.MOCO.HHZ. 2023-04-29T16:03:11.14 0.3 undecidable manual P 126 51.6039 108 0.82 57
IV.LPEL.HHZ. 2023-04-29T16:03:11.17 0.3 undecidable manual P 319 59.3961 105 -0.3 68
IV.PABO.HHN. 2023-04-29T16:03:11.56 0.6 undecidable manual S 298 25.1526 127 0.48 44
IV.GATE.HHZ. 2023-04-29T16:03:10.93 0.6 undecidable manual S 125 25.5522 127 -0.24 47
IV.CIGN.HHZ. 2023-04-29T16:03:10.70 0.6 undecidable manual S 87 20.6682 134 0.54 45
IV.PSB1.HHZ. 2023-04-29T16:03:09.84 0.1 undecidable manual P 165 48.4182 109 -0.02 96
IV.VAGA.HHZ. 2023-04-29T16:03:09.12 0.1 undecidable manual P 234 43.2234 112 0 97
IV.RNI2.HNN. 2023-04-29T16:03:09.28 0.3 undecidable manual P 279 42.2244 112 0.31 68
IV.MELA.HHZ. 2023-04-29T16:03:08.31 0.1 positive manual P 80 39.627 114 -0.28 92
IV.SGG.HHN. 2023-04-29T16:03:08.03 0.3 undecidable manual P 219 36.6411 116 -0.16 72
IT.GLNS.HNZ. 2023-04-29T16:03:08.06 0.3 undecidable manual P 36 36.741 116 -0.14 72
IV.BSSO.HHZ. 2023-04-29T16:03:08.70 0.3 undecidable manual S 206 12.0768 150 -0.04 76
IT.MCLF.HNE. 2023-04-29T16:03:07.27 0.3 undecidable manual P 28 32.2455 120 -0.31 70
IV.PTRJ.HHZ. 2023-04-29T16:03:07.52 0.3 undecidable manual P 199 32.8449 119 -0.14 72
IV.PABO.HHN. 2023-04-29T16:03:07.21 0.6 undecidable manual P 298 25.1526 127 0.54 43
IV.SACR.HHZ. 2023-04-29T16:03:06.57 0.1 negative manual P 171 27.6501 124 -0.41 91
IT.LRNO.HNZ. 2023-04-29T16:03:06.61 0.3 undecidable manual P 50 28.3494 124 -0.46 69
IV.CIGN.HHZ. 2023-04-29T16:03:06.08 0.1 positive manual P 87 20.6682 134 -0.06 100
IV.GATE.HHZ. 2023-04-29T16:03:06.32 0.6 undecidable manual P 125 25.5522 127 -0.4 46
IV.BSSO.HHZ. 2023-04-29T16:03:05.04 0.1 positive manual P 206 12.0768 150 -0.28 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HHE. ML:2.2 0.0009555 1.64 AML other m 2023-04-29T16:03:09.86
IV.BSSO.HHN. ML:2.1 0.0008205 0.42 AML other m 2023-04-29T16:03:09.34
IV.BSSO.HNN. ML:2.1 0.0007925 0.4 AML other m 2023-04-29T16:03:09.35
IV.BSSO.HNE. ML:2.1 0.0008435 0.8 AML other m 2023-04-29T16:03:09.86
IV.SACR.HHN. ML:1.3 0.0000791 0.52 AML other m 2023-04-29T16:03:12.31
IV.SACR.HHE. ML:1.4 0.00008840000000000001 0.18 AML other m 2023-04-29T16:03:12.53
IV.PTRJ.HHE. ML:1.8 0.00022899999999999998 0.76 AML other m 2023-04-29T16:03:13.58
IV.GATE.HHE. ML:1.5 0.00014000000000000001 1.78 AML other m 2023-04-29T16:03:13.98
IV.GATE.HNE. ML:1.6 0.0001505 1.5 AML other m 2023-04-29T16:03:13.98
IV.GATE.HNN. ML:1.5 0.0001265 1.38 AML other m 2023-04-29T16:03:14.22
IV.GATE.HHN. ML:1.4 0.00010950000000000002 1.2 AML other m 2023-04-29T16:03:14.22
IV.PTRJ.HHN. ML:1.6 0.00013800000000000002 0.26 AML other m 2023-04-29T16:03:14.66
IV.MELA.HHN. ML:1.7 0.0001575 0.14 AML other m 2023-04-29T16:03:15.25
IV.MELA.HHE. ML:1.6 0.000108 0.78 AML other m 2023-04-29T16:03:15.64
IV.VAGA.HHE. ML:1.4 0.00006555 1.64 AML other m 2023-04-29T16:03:17.16
IV.VAGA.HHN. ML:1.5 0.00009655 0.86 AML other m 2023-04-29T16:03:19.01
IV.LPEL.HHN. ML:1.9 0.000156 0.14 AML other m 2023-04-29T16:03:21.84
IV.LPEL.HHE. ML:1.8 0.0001235 1.92 AML other m 2023-04-29T16:03:22.98
IV.MOCO.HHN. ML:1.0 0.0000203 0.64 AML other m 2023-04-29T16:03:22.45
IV.MOCO.HHE. ML:1.0 0.00002665 1.48 AML other m 2023-04-29T16:03:22.05
IV.INTR.HHN. ML:1.7 0.00008035 1.3 AML other m 2023-04-29T16:03:23.81
IV.INTR.HHE. ML:1.6 0.000059149999999999994 0.16 AML other m 2023-04-29T16:03:24.07
IV.SGRT.HHE. ML:1.6 0.0000441 0.22 AML other m 2023-04-29T16:03:31.41
IV.SGRT.HHN. ML:1.5 0.00003555 0.58 AML other m 2023-04-29T16:03:32.63
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