Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 29-03-2023 and time 23:37:58 (Italy) in region 1 km W Montagano (CB)

A magnitude ML 1.8 earthquake occured in region: 1 km W Montagano (CB), on

  • 29-03-2023 21:37:58 (UTC)
  • 29-03-2023 23:37:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6460, 14.6610 at 25 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 1 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 9 947 8552
Castellino del Biferno CB 9 545 9097
Campolieto CB 9 839 9936
Oratino CB 9 1641 11577
San Giovanni in Galdo CB 10 580 12157
Campobasso CB 10 49431 61588
San Biase CB 10 189 61777
Lucito CB 10 696 62473
Fossalto CB 10 1345 63818
Torella del Sannio CB 12 795 64613
Toro CB 12 1391 66004
Campodipietra CB 12 2570 68574
Pietracupa CB 12 215 68789
Morrone del Sannio CB 12 587 69376
Castelbottaccio CB 13 312 69688
Ferrazzano CB 13 3344 73032
Busso CB 13 1273 74305
Casalciprano CB 13 564 74869
Monacilioni CB 13 523 75392
Ripabottoni CB 13 514 75906
Molise CB 14 167 76073
Mirabello Sannitico CB 14 2180 78253
Lupara CB 14 505 78758
Civitacampomarano CB 15 417 79175
Baranello CB 16 2673 81848
Provvidenti CB 16 119 81967
Gildone CB 17 809 82776
Salcito CB 17 683 83459
Duronia CB 17 405 83864
Sant'Elena Sannita IS 17 275 84139
Vinchiaturo CB 18 3324 87463
Trivento CB 18 4730 92193
Bagnoli del Trigno IS 18 735 92928
Jelsi CB 18 1781 94709
Sant'Elia a Pianisi CB 18 1818 96527
Spinete CB 18 1320 97847
Frosolone IS 18 3170 101017
Casacalenda CB 19 2135 103152
Colle d'Anchise CB 19 807 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)
76 Km W of Foggia (151991 inhabitants)
81 Km N of Acerra (59573 inhabitants)
82 Km N of Avellino (54857 inhabitants)
84 Km NE of Aversa (53047 inhabitants)
86 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)
92 Km NE of Marano di Napoli (59874 inhabitants)
95 Km N of Portici (55274 inhabitants)
96 Km NE of Napoli (974074 inhabitants)
97 Km N of Ercolano (53709 inhabitants)
98 Km SE of Pescara (121014 inhabitants)
99 Km N of Torre del Greco (86275 inhabitants)
100 Km N of Scafati (50787 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 1.8 2023-03-29
21:37:58		 41.6457 14.6607 25 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116495951
Reviewed
Rev100 		ML 1.8 2023-03-29
21:37:58		 41.6505 14.6575 22 2023-03-29
21:56:07		 Sala Sismica INGV-Roma 115868521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-29 21:37:58 ± 0.13
Latitude 41.6457 ± 0.0063
Longitude 14.6607 ± 0.0072
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116495951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 632
Semi-minor axis of confidence ellipse (meter) 288
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 360
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
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) 0.11152
Epicentral distance of station farthest from the epicenter (degree) 0.96497
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 116495951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-29 16:43:18

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 115868521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-29 21:56:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APRC.HHZ. 2023-03-29T21:38:20.51 1.0 undecidable manual S 80 74.1702 103 -0.74 19
IV.VCEL.EHN. 2023-03-29T21:38:17.06 0.6 undecidable manual P 321 107.115 98 0.4 39
OT.OT12.EHZ. 2023-03-29T21:38:17.35 0.3 undecidable manual P 90 103.4187 99 1.25 41
OT.OT16.EHN. 2023-03-29T21:38:14.05 0.3 undecidable manual S 63 47.1195 111 -0.28 68
IV.SGRT.HHZ. 2023-03-29T21:38:14.38 1.0 undecidable manual P 82 90.5427 100 0.24 21
IV.SNAL.HHZ. 2023-03-29T21:38:13.98 0.6 undecidable manual P 150 92.0412 100 -0.4 41
IV.MELA.HHZ. 2023-03-29T21:38:12.35 0.3 undecidable manual S 80 39.2274 116 -0.05 72
IT.GLNS.HNE. 2023-03-29T21:38:12.24 0.3 undecidable manual S 36 36.4413 118 0.51 66
IV.RNI2.HHZ. 2023-03-29T21:38:12.97 1.0 undecidable manual S 279 42.624 114 -0.25 23
IV.INTR.HHZ. 2023-03-29T21:38:11.34 0.1 undecidable manual P 303 74.4699 103 -0.38 84
IV.APRC.HHZ. 2023-03-29T21:38:11.04 0.3 undecidable manual P 80 74.1702 103 -0.63 59
IT.LRNO.HNZ. 2023-03-29T21:38:10.20 0.6 undecidable manual S 50 27.9498 126 0.39 46
IT.MCLF.HNZ. 2023-03-29T21:38:10.89 0.6 undecidable manual S 27 31.9458 122 0.19 47
IV.LPEL.HHZ. 2023-03-29T21:38:09.22 0.3 undecidable manual P 319 59.496 106 -0.26 67
IV.MOCO.HNE. 2023-03-29T21:38:09.20 0.3 undecidable manual P 126 51.4152 109 0.9 53
IV.SACR.HHZ. 2023-03-29T21:38:09.72 0.3 undecidable manual S 172 27.75 126 -0.06 73
IV.GATE.HHZ. 2023-03-29T21:38:09.62 0.6 undecidable manual S 125 25.3524 129 0.34 46
IT.PLTA.HNE. 2023-03-29T21:38:09.70 0.6 undecidable manual S 22 28.749 125 -0.28 46
IV.PABO.HHE. 2023-03-29T21:38:09.80 0.6 undecidable manual S 297 25.3524 129 0.53 45
IV.CERA.HNN. 2023-03-29T21:38:08.96 0.6 undecidable manual P 265 53.502 108 0.35 44
IV.CIGN.HHZ. 2023-03-29T21:38:08.51 0.6 undecidable manual S 87 20.2686 136 0.24 48
IV.RNI2.HHZ. 2023-03-29T21:38:07.25 0.3 undecidable manual P 279 42.624 114 0.22 69
IV.VAGA.HHZ. 2023-03-29T21:38:07.11 0.1 undecidable manual P 234 43.623 113 -0.08 95
OT.OT16.EHN. 2023-03-29T21:38:07.32 0.1 undecidable manual P 63 47.1195 111 -0.35 90
IV.MELA.HHZ. 2023-03-29T21:38:06.42 0.1 positive manual P 80 39.2274 116 -0.14 95
IV.BSSO.HHZ. 2023-03-29T21:38:06.40 0.6 undecidable manual S 207 12.3765 151 -0.6 43
IV.SGG.HHZ. 2023-03-29T21:38:06.22 0.1 positive manual P 219 37.0296 118 -0.04 97
IT.GLNS.HNE. 2023-03-29T21:38:06.20 0.3 undecidable manual P 36 36.4413 118 0.03 73
IV.GATE.HHZ. 2023-03-29T21:38:05.02 0.1 negative manual P 125 25.3524 129 0.27 94
IT.MCLF.HNZ. 2023-03-29T21:38:05.30 0.3 undecidable manual P 27 31.9458 122 -0.28 70
IV.SACR.HHZ. 2023-03-29T21:38:05.08 0.1 negative manual P 172 27.75 126 0.03 98
IV.CIGN.HHZ. 2023-03-29T21:38:04.19 0.1 positive manual P 87 20.2686 136 0.01 100
IT.LRNO.HNZ. 2023-03-29T21:38:04.83 0.1 undecidable manual P 50 27.9498 126 -0.24 95
IT.PLTA.HNE. 2023-03-29T21:38:04.98 0.3 undecidable manual P 22 28.749 125 -0.19 71
IV.PABO.HHE. 2023-03-29T21:38:04.92 0.3 undecidable manual P 297 25.3524 129 0.17 72
IV.BSSO.HHZ. 2023-03-29T21:38:03.26 0.1 positive manual P 207 12.3765 151 -0.19 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HNN. ML:2.2 0.0008905 1.44 AML other m 2023-03-29T21:38:07.79
IV.BSSO.HHN. ML:2.2 0.000918 1.44 AML other m 2023-03-29T21:38:07.79
IV.BSSO.HHE. ML:2.3 0.001135 0.44 AML other m 2023-03-29T21:38:07.39
IV.BSSO.HNE. ML:2.3 0.0011149999999999999 0.44 AML other m 2023-03-29T21:38:07.39
IV.SACR.HHN. ML:1.7 0.000189 1.48 AML other m 2023-03-29T21:38:09.92
IV.SACR.HHE. ML:1.8 0.0002545 1.26 AML other m 2023-03-29T21:38:09.94
IV.SACR.HNE. ML:1.8 0.000245 1.28 AML other m 2023-03-29T21:38:09.95
IV.SACR.HNN. ML:1.7 0.00020050000000000002 0.8 AML other m 2023-03-29T21:38:10.58
IV.CIGN.HHE. ML:1.8 0.00026849999999999997 0.6 AML other m 2023-03-29T21:38:11.33
IV.MELA.HNN. ML:2.0 0.00028403259999999997 0.3712 AML other m 2023-03-29T21:38:12.47
IV.GATE.HNE. ML:1.4 0.00011099999999999999 1.38 AML other m 2023-03-29T21:38:12.28
IV.MELA.HHE. ML:1.9 0.0002125 1.92 AML other m 2023-03-29T21:38:13.99
IV.MELA.HHN. ML:2.0 0.0003005 0.26 AML other m 2023-03-29T21:38:13.04
IV.GATE.HHE. ML:1.4 0.00010300000000000001 0.28 AML other m 2023-03-29T21:38:13.28
IV.CIGN.HHN. ML:1.8 0.0003215 1.52 AML other m 2023-03-29T21:38:14.07
IV.RNI2.HNN. ML:1.9 0.0002135 0.16 AML other m 2023-03-29T21:38:15.31
IV.RNI2.HHN. ML:1.9 0.00022 0.14 AML other m 2023-03-29T21:38:15.30
IV.VAGA.HHE. ML:1.6 0.00009329999999999999 1.06 AML other m 2023-03-29T21:38:15.85
IV.RNI2.HHE. ML:1.8 0.00016450000000000001 0.2 AML other m 2023-03-29T21:38:16.53
IV.RNI2.HNE. ML:1.8 0.00016649999999999998 0.2 AML other m 2023-03-29T21:38:16.54
IV.VAGA.HHN. ML:1.6 0.0001101 0.32 AML other m 2023-03-29T21:38:20.06
IV.LPEL.HHE. ML:1.7 0.0000976 0.6 AML other m 2023-03-29T21:38:20.45
IV.GATE.HNN. ML:1.4 0.00010930000000000001 0.48 AML other m 2023-03-29T21:38:20.53
IV.GATE.HHN. ML:1.3 0.0000892 0.48 AML other m 2023-03-29T21:38:20.78
IV.LPEL.HHN. ML:1.7 0.00009795 0.18 AML other m 2023-03-29T21:38:20.66
IV.INTR.HHN. ML:1.8 0.00009335 0.68 AML other m 2023-03-29T21:38:22.53
IV.INTR.HHE. ML:1.8 0.000084 0.32 AML other m 2023-03-29T21:38:24.20
OT.OT12.EHN. ML:1.9 0.00007555000000000001 0.28 AML other m 2023-03-29T21:38:31.37
OT.OT12.EHE. ML:1.9 0.00006884999999999999 0.74 AML other m 2023-03-29T21:38:31.41
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