Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 29-03-2023 and time 04:16:50 (Italy) in region 1 km SW Montagano (CB)

A magnitude ML 1.1 earthquake occured in region: 1 km SW Montagano (CB), on

  • 29-03-2023 02:16:50 (UTC)
  • 29-03-2023 04:16:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6370, 14.6630 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 3 3114 4200
Matrice CB 5 1115 5315
Limosano CB 6 768 6083
Petrella Tifernina CB 7 1170 7253
Sant'Angelo Limosano CB 8 352 7605
Oratino CB 9 1641 9246
Castropignano CB 9 947 10193
Campolieto CB 9 839 11032
Campobasso CB 9 49431 60463
San Giovanni in Galdo CB 9 580 61043
Castellino del Biferno CB 9 545 61588
San Biase CB 11 189 61777
Fossalto CB 11 1345 63122
Lucito CB 11 696 63818
Toro CB 11 1391 65209
Campodipietra CB 11 2570 67779
Torella del Sannio CB 12 795 68574
Ferrazzano CB 12 3344 71918
Busso CB 12 1273 73191
Monacilioni CB 13 523 73714
Casalciprano CB 13 564 74278
Pietracupa CB 13 215 74493
Morrone del Sannio CB 13 587 75080
Ripabottoni CB 13 514 75594
Castelbottaccio CB 14 312 75906
Mirabello Sannitico CB 14 2180 78086
Molise CB 14 167 78253
Baranello CB 15 2673 80926
Lupara CB 15 505 81431
Gildone CB 16 809 82240
Provvidenti CB 16 119 82359
Civitacampomarano CB 16 417 82776
Vinchiaturo CB 17 3324 86100
Duronia CB 17 405 86505
Sant'Elena Sannita IS 17 275 86780
Jelsi CB 17 1781 88561
Salcito CB 18 683 89244
Spinete CB 18 1320 90564
Sant'Elia a Pianisi CB 18 1818 92382
Frosolone IS 18 3170 95552
Colle d'Anchise CB 19 807 96359
Pietracatella CB 19 1375 97734
Bagnoli del Trigno IS 19 735 98469
Trivento CB 19 4730 103199
Casacalenda CB 19 2135 105334
Cercepiccola CB 20 681 106015

Municipalities with at least 50000 inhabitants

An earthquake occurred to
57 Km N of Benevento (60091 inhabitants)
60 Km W of San Severo (53905 inhabitants)
68 Km NE of Caserta (76326 inhabitants)
76 Km W of Foggia (151991 inhabitants)
81 Km NE of Acerra (59573 inhabitants)
81 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)
89 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)
99 Km SE of Pescara (121014 inhabitants)
99 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 1.1 2023-03-29
02:16:50		 41.6373 14.6633 24 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124338691
Reviewed
Rev100 		ML 1.1 2023-03-29
02:16:50		 41.6517 14.6605 16 2023-03-29
02:26:15		 Sala Sismica INGV-Roma 115836421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-29 02:16:50 ± 0.14
Latitude 41.6373 ± 0.0063
Longitude 14.6633 ± 0.0072
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 124338691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 676
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.10522
Epicentral distance of station farthest from the epicenter (degree) 0.92990
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 7
Type of magnitude ML
Reference to an origin 124338691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-29 11:14:31

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 7
Type of magnitude ML
Reference to an origin 115836421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-29 02:26:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHE. 2023-03-29T02:17:13.36 0.6 undecidable manual S 304 75.1692 101 0.16 45
IV.LPEL.HHZ. 2023-03-29T02:17:09.01 0.6 undecidable manual S 319 60.2952 105 -0.32 44
OT.OT12.EHZ. 2023-03-29T02:17:08.44 0.6 undecidable manual P 90 103.2189 98 0.65 37
IV.VAGA.HHZ. 2023-03-29T02:17:05.78 0.6 undecidable manual S 236 43.3233 111 0.78 39
IV.RNI2.HNE. 2023-03-29T02:17:05.30 0.6 undecidable manual S 280 42.9237 112 0.38 45
IV.SGG.HHZ. 2023-03-29T02:17:03.40 0.6 undecidable manual S 220 36.4413 116 0.07 49
IT.GLNS.HNZ. 2023-03-29T02:17:03.96 0.6 undecidable manual S 35 37.0296 115 0.49 45
IV.APRC.HHZ. 2023-03-29T02:17:03.61 0.6 undecidable manual P 79 74.0703 102 0.24 44
IV.MELA.HHZ. 2023-03-29T02:17:03.90 0.3 undecidable manual S 79 39.1275 114 -0.08 73
IV.INTR.HHE. 2023-03-29T02:17:02.95 0.3 undecidable manual P 304 75.1692 101 -0.59 60
IV.PABO.HHN. 2023-03-29T02:17:01.96 0.6 undecidable manual S 299 26.0517 126 1.03 37
IV.SACR.HNN. 2023-03-29T02:17:00.80 0.3 undecidable manual S 172 26.8509 125 -0.31 71
IV.LPEL.HHZ. 2023-03-29T02:17:00.97 0.3 undecidable manual P 319 60.2952 105 -0.33 66
IV.MOCO.HNE. 2023-03-29T02:17:00.75 0.3 undecidable manual P 126 50.7159 108 0.88 56
IV.GATE.HHZ. 2023-03-29T02:17:00.30 0.6 undecidable manual S 124 24.6531 128 -0.34 47
IV.CIGN.HHZ. 2023-03-29T02:16:59.66 0.6 undecidable manual S 85 20.1687 134 -0.06 50
IV.RNI2.HNE. 2023-03-29T02:16:58.75 0.3 undecidable manual P 280 42.9237 112 0 73
IV.VAGA.HHZ. 2023-03-29T02:16:58.79 0.3 undecidable manual P 236 43.3233 111 -0.01 73
IV.BSSO.HHZ. 2023-03-29T02:16:58.45 0.6 undecidable manual S 210 11.6772 150 0.12 50
IV.SGG.HHZ. 2023-03-29T02:16:57.55 0.3 undecidable manual P 220 36.4413 116 -0.29 70
IV.MELA.HHZ. 2023-03-29T02:16:57.96 0.1 undecidable manual P 79 39.1275 114 -0.26 93
IT.GLNS.HNZ. 2023-03-29T02:16:57.79 0.3 undecidable manual P 35 37.0296 115 -0.13 72
IV.PABO.HHN. 2023-03-29T02:16:56.48 0.3 undecidable manual P 299 26.0517 126 0.03 75
IV.GATE.HHZ. 2023-03-29T02:16:56.72 0.3 undecidable manual P 124 24.6531 128 0.43 69
IV.SACR.HNN. 2023-03-29T02:16:56.37 0.1 undecidable manual P 172 26.8509 125 -0.19 97
IV.CIGN.HHZ. 2023-03-29T02:16:55.67 0.1 undecidable manual P 85 20.1687 134 -0.09 100
IV.BSSO.HHZ. 2023-03-29T02:16:54.57 0.1 undecidable manual P 210 11.6772 150 -0.38 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HNN. ML:1.3 0.0001255029 0.4 AML other m 2023-03-29T02:16:58.86
IV.BSSO.HHN. ML:1.3 0.00011515000000000001 0.36 AML other m 2023-03-29T02:16:58.85
IV.BSSO.HHE. ML:1.2 0.00008755 0.82 AML other m 2023-03-29T02:17:00.29
IV.CIGN.HHE. ML:1.0 0.0000496927 0.5808 AML other m 2023-03-29T02:17:02.55
IV.CIGN.HHN. ML:1.0 0.000050926905 0.44 AML other m 2023-03-29T02:17:05.25
IV.LPEL.HHN. ML:1.0 0.000021038864 0.08 AML other m 2023-03-29T02:17:09.91
IV.LPEL.HHE. ML:1.2 0.0000280524165 0.12 AML other m 2023-03-29T02:17:12.32
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