Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 21-03-2023 and time 18:51:23 (UTC) in region 4 km SE Ripabottoni (CB)

A magnitude ML 2.1 earthquake occured in region: 4 km SE Ripabottoni (CB), on

  • 21-03-2023 18:51:23 (UTC)
  • 21-03-2023 19:51:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6630, 14.8450 at 22 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
Ripabottoni CB 4 514 514
Sant'Elia a Pianisi CB 5 1818 2332
Monacilioni CB 6 523 2855
Provvidenti CB 7 119 2974
Campolieto CB 7 839 3813
Morrone del Sannio CB 8 587 4400
Casacalenda CB 9 2135 6535
Bonefro CB 9 1384 7919
Pietracatella CB 9 1375 9294
Macchia Valfortore CB 9 576 9870
San Giuliano di Puglia CB 10 1042 10912
Castellino del Biferno CB 10 545 11457
Colletorto CB 11 1938 13395
San Giovanni in Galdo CB 11 580 13975
Toro CB 12 1391 15366
Montelongo CB 12 365 15731
Matrice CB 12 1115 16846
Petrella Tifernina CB 13 1170 18016
Montorio nei Frentani CB 13 437 18453
Carlantino FG 14 980 19433
Santa Croce di Magliano CB 14 4435 23868
Campodipietra CB 14 2570 26438
Montagano CB 14 1086 27524
Lupara CB 15 505 28029
Lucito CB 15 696 28725
Castelbottaccio CB 15 312 29037
Celenza Valfortore FG 16 1598 30635
Ripalimosani CB 16 3114 33749
Guardialfiera CB 16 1065 34814
Larino CB 16 6793 41607
Jelsi CB 16 1781 43388
Rotello CB 17 1212 44600
Gambatesa CB 18 1464 46064
Civitacampomarano CB 18 417 46481
Limosano CB 19 768 47249
Gildone CB 19 809 48058
Campobasso CB 19 49431 97489
Riccia CB 20 5262 102751

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km W of San Severo (53905 inhabitants)
59 Km N of Benevento (60091 inhabitants)
62 Km W of Foggia (151991 inhabitants)
78 Km NE of Caserta (76326 inhabitants)
83 Km N of Avellino (54857 inhabitants)
89 Km NE of Acerra (59573 inhabitants)
89 Km W of Manfredonia (57279 inhabitants)
93 Km NE of Aversa (53047 inhabitants)
94 Km NE of Afragola (65057 inhabitants)
95 Km SE of Chieti (51815 inhabitants)
96 Km NE of Casoria (77642 inhabitants)
98 Km NE of Giugliano in Campania (122974 inhabitants)
99 Km W of Cerignola (58396 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 2.1 2023-03-21
18:51:23		 41.6628 14.8448 22 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124164481
Reviewed
Rev100 		ML 2.1 2023-03-21
18:51:23		 41.687 14.8335 20 2023-03-21
19:05:43		 Sala Sismica INGV-Roma 115603101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-21 18:51:23 ± 0.13
Latitude 41.6628 ± 0.0072
Longitude 14.8448 ± 0.0084
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124164481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 788
Semi-minor axis of confidence ellipse (meter) 248
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 1.52165
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 52
Type of magnitude ML
Reference to an origin 115603101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-21 19:05:43

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 52
Type of magnitude ML
Reference to an origin 124164481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-20 16:01:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2023-03-21T18:51:51.01 0.3 undecidable manual P 119 168.9087 54 0.55 49
IV.INTR.HHZ. 2023-03-21T18:51:50.30 0.6 undecidable manual S 297 86.7465 98 0.64 40
IV.SNAL.HHZ. 2023-03-21T18:51:49.80 0.6 undecidable manual S 160 87.246 98 0.02 47
IV.CAFE.HHZ. 2023-03-21T18:51:48.30 0.6 undecidable manual S 155 77.6667 100 1.06 34
IV.MRVN.HHZ. 2023-03-21T18:51:45.77 0.3 undecidable manual P 120 130.7691 95 0.3 61
IV.PALZ.HHZ. 2023-03-21T18:51:45.25 0.3 undecidable manual P 130 122.4885 96 1.06 47
IV.VAGA.HHZ. 2023-03-21T18:51:43.40 0.6 undecidable manual S 242 57.6978 104 1.39 30
IV.APRC.HHZ. 2023-03-21T18:51:42.00 0.6 undecidable manual S 79 58.7967 103 -0.3 47
IV.T0110.HHZ. 2023-03-21T18:51:41.48 0.3 undecidable manual P 306 108.3138 97 -0.54 61
OT.OT14.EHZ. 2023-03-21T18:51:40.69 0.6 undecidable manual P 73 91.6416 98 1.22 31
IV.VVLD.HHZ. 2023-03-21T18:51:40.56 0.3 undecidable manual P 283 103.6185 97 -0.74 57
OT.OT12.EHZ. 2023-03-21T18:51:40.15 0.3 undecidable manual P 92 88.1451 98 1.21 47
IV.POFI.HHZ. 2023-03-21T18:51:39.18 1.0 undecidable manual P 274 94.0392 98 -0.66 20
IV.INTR.HHZ. 2023-03-21T18:51:38.24 0.3 undecidable manual P 297 86.7465 98 -0.49 65
OT.OT11.EHE. 2023-03-21T18:51:38.80 0.6 undecidable manual S 112 43.9227 109 0.32 48
IV.PABO.HHN. 2023-03-21T18:51:38.10 0.6 undecidable manual S 284 39.1275 112 0.82 41
IV.PAOL.HHZ. 2023-03-21T18:51:38.34 0.6 undecidable manual P 198 73.7706 100 1.59 25
IV.CAFE.HHZ. 2023-03-21T18:51:37.10 0.1 undecidable manual P 155 77.6667 100 -0.23 92
IV.SNAL.HHZ. 2023-03-21T18:51:37.76 0.3 undecidable manual P 160 87.246 98 -1.04 51
IV.SGRT.HHZ. 2023-03-21T18:51:36.65 0.3 undecidable manual P 82 75.1692 100 -0.31 68
IV.LPEL.HHZ. 2023-03-21T18:51:36.11 0.3 undecidable manual P 308 69.2751 101 0.04 73
IV.CERA.HHZ. 2023-03-21T18:51:35.39 0.6 undecidable manual P 264 68.8755 101 -0.62 43
OT.OT16.EHZ. 2023-03-21T18:51:35.60 0.3 undecidable manual S 55 32.9448 116 -0.18 75
IT.GLNS.HNZ. 2023-03-21T18:51:35.70 0.6 undecidable manual S 12 28.2495 121 1.02 39
IV.SACR.HHZ. 2023-03-21T18:51:35.40 0.6 undecidable manual S 201 31.6461 117 -0.06 52
IV.VAGA.HHZ. 2023-03-21T18:51:34.45 0.3 undecidable manual P 242 57.6978 104 0.13 73
IT.PLTA.HNN. 2023-03-21T18:51:34.80 0.6 undecidable manual S 350 25.2525 124 0.81 43
IV.MELA.HHZ. 2023-03-21T18:51:33.30 0.6 undecidable manual S 78 23.8539 126 -0.39 49
IV.GATE.HHZ. 2023-03-21T18:51:33.29 0.6 undecidable manual S 162 17.4714 136 0.89 42
IV.APRC.HHZ. 2023-03-21T18:51:33.69 0.3 undecidable manual P 79 58.7967 103 -0.8 60
IV.BSSO.HHZ. 2023-03-21T18:51:33.80 0.6 undecidable manual S 238 24.5532 125 -0.04 53
IT.LRNO.HNZ. 2023-03-21T18:51:32.90 0.6 undecidable manual S 21 17.0718 137 0.56 48
IV.SGG.HHZ. 2023-03-21T18:51:32.65 0.3 undecidable manual P 232 49.3173 106 -0.43 70
OT.OT11.EHE. 2023-03-21T18:51:32.07 0.1 undecidable manual P 112 43.9227 109 -0.21 98
IV.MOCO.HHZ. 2023-03-21T18:51:32.12 0.3 undecidable manual P 141 41.625 110 0.17 75
IV.PABO.HHN. 2023-03-21T18:51:32.03 0.1 undecidable manual P 284 39.1275 112 0.44 94
IV.CIGN.HHE. 2023-03-21T18:51:31.00 0.6 undecidable manual S 101 5.0949 165 0.25 53
OT.OT16.EHZ. 2023-03-21T18:51:30.38 0.1 undecidable manual P 55 32.9448 116 -0.34 98
IT.GLNS.HNZ. 2023-03-21T18:51:30.27 0.3 undecidable manual P 12 28.2495 121 0.19 77
IV.SACR.HHZ. 2023-03-21T18:51:30.29 0.1 undecidable manual P 201 31.6461 117 -0.25 100
IV.MELA.HHZ. 2023-03-21T18:51:29.13 0.1 negative manual P 78 23.8539 126 -0.38 98
IV.BSSO.HHZ. 2023-03-21T18:51:29.70 0.3 undecidable manual P 238 24.5532 125 0.1 78
IT.PLTA.HNN. 2023-03-21T18:51:29.81 0.3 undecidable manual P 350 25.2525 124 0.13 78
IT.LRNO.HNZ. 2023-03-21T18:51:28.62 0.3 undecidable manual P 21 17.0718 137 -0.12 79
IV.GATE.HHZ. 2023-03-21T18:51:28.37 0.1 undecidable manual P 162 17.4714 136 -0.4 99
IV.CIGN.HHE. 2023-03-21T18:51:26.56 0.1 undecidable manual P 101 5.0949 165 -1.26 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MELA.HHN. ML:2.6 0.0017549999999999998 1.4 AML other m 2023-03-21T18:51:33.88
IV.MELA.HHE. ML:2.4 0.00125 1.28 AML other m 2023-03-21T18:51:34.83
IV.GATE.HNN. ML:2.4 0.00125 1.08 AML other m 2023-03-21T18:51:35.57
IV.GATE.HHN. ML:2.4 0.00125 1.06 AML other m 2023-03-21T18:51:35.56
IV.BSSO.HHE. ML:2.4 0.0010834999999999998 1.02 AML other m 2023-03-21T18:51:35.07
IV.BSSO.HNE. ML:2.3 0.0010229999999999998 1.02 AML other m 2023-03-21T18:51:35.07
IV.BSSO.HHN. ML:2.4 0.0012549999999999998 0.5 AML other m 2023-03-21T18:51:35.34
IV.BSSO.HNN. ML:2.4 0.00125 0.5 AML other m 2023-03-21T18:51:35.34
IV.SACR.HHE. ML:2.1 0.000467 0.74 AML other m 2023-03-21T18:51:35.91
IV.SACR.HNE. ML:2.1 0.000437 1.66 AML other m 2023-03-21T18:51:35.92
IV.SACR.HNN. ML:2.0 0.0003705 0.38 AML other m 2023-03-21T18:51:36.62
IV.SACR.HHN. ML:2.0 0.000363 0.38 AML other m 2023-03-21T18:51:36.62
IV.GATE.HHE. ML:2.3 0.00117 0.32 AML other m 2023-03-21T18:51:37.38
IV.GATE.HNE. ML:2.3 0.0011899999999999999 0.34 AML other m 2023-03-21T18:51:37.38
IV.SGG.HHE. ML:1.9 0.000175 1.3 AML other m 2023-03-21T18:51:41.10
IV.SGG.HHN. ML:1.8 0.000166 0.38 AML other m 2023-03-21T18:51:43.89
IV.MOCO.HHE. ML:1.9 0.0002485 1.32 AML other m 2023-03-21T18:51:43.22
IV.APRC.HHN. ML:2.2 0.0002935 0.18 AML other m 2023-03-21T18:51:44.76
IV.VAGA.HHE. ML:2.0 0.000189 0.96 AML other m 2023-03-21T18:51:44.90
IV.APRC.HHE. ML:2.0 0.00020500000000000002 0.76 AML other m 2023-03-21T18:51:47.26
IV.VAGA.HHN. ML:2.1 0.00026250000000000004 0.24 AML other m 2023-03-21T18:51:47.51
OT.OT05.EHE. ML:1.9 0.0001295 0.6 AML other m 2023-03-21T18:51:48.25
IV.LPEL.HHN. ML:2.1 0.000201 0.68 AML other m 2023-03-21T18:51:48.49
OT.OT05.EHN. ML:1.8 0.00011545 1.58 AML other m 2023-03-21T18:51:48.83
IV.MOCO.HHN. ML:1.7 0.000141 1.4 AML other m 2023-03-21T18:51:49.93
IV.CAFE.HHN. ML:2.0 0.00014600000000000003 0.32 AML other m 2023-03-21T18:51:50.14
IV.CAFE.HHE. ML:2.1 0.000167 0.22 AML other m 2023-03-21T18:51:50.59
IV.INTR.HHE. ML:1.9 0.00009405 1.34 AML other m 2023-03-21T18:51:50.88
IV.LPEL.HHE. ML:2.1 0.00019700000000000002 1.6 AML other m 2023-03-21T18:51:50.13
IV.INTR.HNE. ML:2.1 0.000157 1.34 AML other m 2023-03-21T18:51:51.81
IV.SGRT.HHE. ML:2.1 0.00017549999999999998 0.16 AML other m 2023-03-21T18:51:51.31
IV.PAOL.HHE. ML:1.6 0.0000675 0.26 AML other m 2023-03-21T18:51:51.45
IV.INTR.HHN. ML:2.1 0.00014250000000000002 0.26 AML other m 2023-03-21T18:51:52.36
IV.SGRT.HHN. ML:1.9 0.00011695 0.72 AML other m 2023-03-21T18:51:52.86
OT.OT12.EHE. ML:2.1 0.00016099999999999998 0.32 AML other m 2023-03-21T18:51:53.48
OT.OT12.EHN. ML:2.3 0.0002405 0.5 AML other m 2023-03-21T18:51:53.29
IV.PAOL.HHN. ML:1.7 0.0000764 0.26 AML other m 2023-03-21T18:51:55.10
OT.OT14.EHN. ML:2.6 0.00042449999999999996 0.74 AML other m 2023-03-21T18:51:55.22
IV.CERA.HHN. ML:2.0 0.0001575 1.06 AML other m 2023-03-21T18:51:55.71
IV.CERA.HHE. ML:1.9 0.00013419999999999998 1.5 AML other m 2023-03-21T18:51:56.04
OT.OT14.EHE. ML:2.5 0.0003325 0.74 AML other m 2023-03-21T18:51:56.57
IV.POFI.HHE. ML:1.5 0.0000357 0.76 AML other m 2023-03-21T18:51:57.32
IV.POFI.HHN. ML:1.4 0.00003225 1.5 AML other m 2023-03-21T18:51:59.79
IV.VVLD.HHE. ML:1.7 0.000050350000000000004 1.52 AML other m 2023-03-21T18:52:03.07
IV.VVLD.HHN. ML:1.7 0.00004865 0.82 AML other m 2023-03-21T18:52:03.77
IV.T0110.HHN. ML:2.0 0.0000813 0.88 AML other m 2023-03-21T18:52:03.82
IV.MRVN.HHE. ML:1.9 0.000054900000000000006 0.34 AML other m 2023-03-21T18:52:06.30
IV.MRVN.HHN. ML:1.8 0.000040749999999999994 0.8 AML other m 2023-03-21T18:52:07.19
IV.T0110.HHE. ML:2.0 0.000084 0.32 AML other m 2023-03-21T18:52:07.19
IV.INTR.HNN. ML:2.4 0.00028849999999999997 0.68 AML other m 2023-03-21T18:52:10.56
IV.MF5.EHE. ML:2.2 0.0000505 0.42 AML other m 2023-03-21T18:52:21.65
IV.MF5.EHN. ML:2.2 0.0000488 1.38 AML other m 2023-03-21T18:52:23.89
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
Waveforms Seismic signals in miniseed + resp format Download