Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 30-03-2023 and time 03:59:32 (Italy) in region 1 km W Montagano (CB)

A magnitude ML 1.4 earthquake occured in region: 1 km W Montagano (CB), on

  • 30-03-2023 01:59:32 (UTC)
  • 30-03-2023 03:59:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6440, 14.6660 at 28 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
Matrice CB 5 1115 5315
Limosano CB 5 768 6083
Petrella Tifernina CB 6 1170 7253
Sant'Angelo Limosano CB 8 352 7605
Campolieto CB 9 839 8444
Castellino del Biferno CB 9 545 8989
Castropignano CB 9 947 9936
Oratino CB 9 1641 11577
San Giovanni in Galdo CB 9 580 12157
Campobasso CB 10 49431 61588
Lucito CB 10 696 62284
San Biase CB 10 189 62473
Fossalto CB 11 1345 63818
Toro CB 11 1391 65209
Campodipietra CB 12 2570 67779
Torella del Sannio CB 12 795 68574
Morrone del Sannio CB 12 587 69161
Ferrazzano CB 13 3344 72505
Monacilioni CB 13 523 73028
Castelbottaccio CB 13 312 73340
Pietracupa CB 13 215 73555
Ripabottoni CB 13 514 74069
Busso CB 13 1273 75342
Casalciprano CB 13 564 75906
Mirabello Sannitico CB 14 2180 78086
Molise CB 14 167 78253
Lupara CB 14 505 78758
Civitacampomarano CB 15 417 79175
Provvidenti CB 16 119 79294
Baranello CB 16 2673 81967
Gildone CB 16 809 82776
Duronia CB 17 405 83181
Salcito CB 17 683 83864
Sant'Elia a Pianisi CB 18 1818 85682
Sant'Elena Sannita IS 18 275 85957
Jelsi CB 18 1781 87738
Vinchiaturo CB 18 3324 91062
Trivento CB 18 4730 95792
Spinete CB 19 1320 97112
Frosolone IS 19 3170 100282
Casacalenda CB 19 2135 102417
Bagnoli del Trigno IS 19 735 103152
Pietracatella CB 19 1375 104527
Colle d'Anchise CB 19 807 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 NE 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)
89 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)
99 Km N of Torre del Greco (86275 inhabitants)
99 Km SE of Pescara (121014 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 1.4 2023-03-30
01:59:32		 41.6443 14.6658 28 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124449001
Reviewed
Rev100 		ML 1.3 2023-03-30
01:59:32		 41.6717 14.6332 18 2023-03-30
02:10:55		 Sala Sismica INGV-Roma 115871851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-30 01:59:32 ± 0.15
Latitude 41.6443 ± 0.0063
Longitude 14.6658 ± 0.0060
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124449001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 647
Semi-minor axis of confidence ellipse (meter) 344
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 340
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.11242
Epicentral distance of station farthest from the epicenter (degree) 0.81209
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:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 115871851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-30 02:10:55

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 124449001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-03 11:57:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHE. 2023-03-30T01:59:55.46 0.6 undecidable manual S 303 74.9694 105 0 46
IV.SGRT.HHZ. 2023-03-30T01:59:48.54 0.3 undecidable manual P 82 90.1431 102 0.56 60
OT.OT16.EHN. 2023-03-30T01:59:48.20 0.6 undecidable manual S 63 46.8198 115 -0.16 46
IV.RNI2.HNE. 2023-03-30T01:59:47.95 0.6 undecidable manual S 279 43.0236 117 0.49 43
IV.SGG.HHN. 2023-03-30T01:59:46.31 0.6 undecidable manual S 220 37.2294 121 0.21 46
IV.MELA.HHZ. 2023-03-30T01:59:46.52 0.6 undecidable manual S 80 38.8278 120 0.05 49
IT.GLNS.HNZ. 2023-03-30T01:59:46.24 0.6 undecidable manual S 35 36.3414 122 0.35 46
IV.INTR.HHE. 2023-03-30T01:59:45.43 0.3 undecidable manual P 303 74.9694 105 -0.29 65
IT.LRNO.HNZ. 2023-03-30T01:59:44.07 0.6 undecidable manual S 49 27.6501 130 0.04 50
IV.SACR.HHZ. 2023-03-30T01:59:43.95 0.6 undecidable manual S 173 27.5502 130 -0.06 50
IV.CIGN.HHZ. 2023-03-30T01:59:42.97 0.6 undecidable manual S 87 19.869 141 0.41 46
IV.CERA.HNN. 2023-03-30T01:59:42.91 0.6 undecidable manual P 265 53.9016 111 0.28 45
OT.OT16.EHN. 2023-03-30T01:59:41.32 0.1 undecidable manual P 63 46.8198 115 -0.3 90
IV.RNI2.HNE. 2023-03-30T01:59:41.08 0.3 undecidable manual P 279 43.0236 117 -0.02 73
IV.VAGA.HHZ. 2023-03-30T01:59:41.28 0.3 undecidable manual P 235 43.9227 116 0.06 71
IT.GLNS.HNZ. 2023-03-30T01:59:40.25 0.3 undecidable manual P 35 36.3414 122 0.06 73
IV.SGG.HHN. 2023-03-30T01:59:40.18 0.3 undecidable manual P 220 37.2294 121 -0.13 72
IV.MELA.HHZ. 2023-03-30T01:59:40.44 0.1 undecidable manual P 80 38.8278 120 -0.09 96
IV.BSSO.HHZ. 2023-03-30T01:59:40.86 0.6 undecidable manual S 209 12.4764 153 -0.62 46
IV.SACR.HHZ. 2023-03-30T01:59:39.07 0.3 undecidable manual P 173 27.5502 130 -0.04 75
IV.GATE.HHZ. 2023-03-30T01:59:39.32 0.3 undecidable manual P 126 24.9528 134 0.52 67
IV.PABO.HHN. 2023-03-30T01:59:39.05 0.3 undecidable manual P 297 25.8519 132 0.14 73
IV.CIGN.HHZ. 2023-03-30T01:59:38.21 0.1 positive manual P 87 19.869 141 -0.06 100
IT.LRNO.HNZ. 2023-03-30T01:59:38.87 0.3 undecidable manual P 49 27.6501 130 -0.25 71
IV.BSSO.HHZ. 2023-03-30T01:59:37.17 0.1 undecidable manual P 209 12.4764 153 -0.47 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BSSO.HNE. ML:1.8 0.00029749999999999997 0.34 AML other m 2023-03-30T01:59:41.01
IV.BSSO.HHE. ML:1.8 0.000307 0.36 AML other m 2023-03-30T01:59:41.00
IV.BSSO.HHN. ML:1.8 0.000295 0.44 AML other m 2023-03-30T01:59:41.49
IV.BSSO.HNN. ML:1.8 0.00028700000000000004 0.44 AML other m 2023-03-30T01:59:41.49
IV.CIGN.HHE. ML:1.2 0.0000759 0.4 AML other m 2023-03-30T01:59:45.92
IV.CIGN.HHN. ML:1.3 0.00008995 0.62 AML other m 2023-03-30T01:59:46.69
IV.GATE.HHN. ML:1.0 0.000037900000000000006 0.82 AML other m 2023-03-30T01:59:46.03
IV.GATE.HHE. ML:1.1 0.00004985 0.58 AML other m 2023-03-30T01:59:46.51
IV.VAGA.HHN. ML:1.2 0.00004155 0.86 AML other m 2023-03-30T01:59:51.57
IV.VAGA.HHE. ML:1.1 0.00003325 1.44 AML other m 2023-03-30T01:59:52.02
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