Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 20-12-2023 and time 23:35:07 (UTC) in region 2 km E Montefalcone nel Sannio (CB)

A magnitude ML 2.2 earthquake occured in region: 2 km E Montefalcone nel Sannio (CB), on

  • 20-12-2023 23:35:07 (UTC)
  • 21-12-2023 00:35:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.8660, 14.6640 at 16 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Montefalcone nel Sannio CB 2 1556 1556
Montemitro CB 3 395 1951
San Felice del Molise CB 4 634 2585
Castelmauro CB 6 1505 4090
Roccavivara CB 6 815 4905
Tufillo CH 6 406 5311
Celenza sul Trigno CH 7 915 6226
Acquaviva Collecroce CB 7 672 6898
San Giovanni Lipioni CH 9 185 7083
Dogliola CH 9 359 7442
Mafalda CB 9 1211 8653
Tavenna CB 10 718 9371
Civitacampomarano CB 10 417 9788
Torrebruna CH 10 825 10613
Palata CB 11 1726 12339
Palmoli CH 11 923 13262
Fresagrandinaria CH 12 961 14223
Castelguidone CH 13 382 14605
Carunchio CH 13 600 15205
Guardialfiera CB 13 1065 16270
Lupara CB 13 505 16775
Castelbottaccio CB 13 312 17087
Trivento CB 13 4730 21817
Liscia CH 13 713 22530
Montenero di Bisaccia CB 14 6675 29205
Lentella CH 15 689 29894
Lucito CB 15 696 30590
Montecilfone CB 15 1348 31938
San Buono CH 15 967 32905
Fraine CH 15 337 33242
Schiavi di Abruzzo CH 16 860 34102
Furci CH 17 988 35090
Castiglione Messer Marino CH 18 1790 36880
Roccaspinalveti CH 18 1339 38219
San Biase CB 18 189 38408
Salcito CB 18 683 39091
Castellino del Biferno CB 19 545 39636
Morrone del Sannio CB 20 587 40223
Petrella Tifernina CB 20 1170 41393
Sant'Angelo Limosano CB 20 352 41745
Gissi CH 20 2819 44564

Municipalities with at least 50000 inhabitants

An earthquake occurred to
63 Km W of San Severo (53905 inhabitants)
68 Km SE of Chieti (51815 inhabitants)
76 Km SE of Pescara (121014 inhabitants)
82 Km N of Benevento (60091 inhabitants)
84 Km SE of Montesilvano (53738 inhabitants)
86 Km NW of Foggia (151991 inhabitants)
92 Km NE of Caserta (76326 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
Reviewed
Rev100 		ML 2.2 2023-12-20
23:35:07		 41.8663 14.6642 16 2023-12-20
23:40:57		 Sala Sismica INGV-Roma 124168961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-20 23:35:07 ± 0.09
Latitude 41.8663 ± 0.0054
Longitude 14.6642 ± 0.0048
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124168961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 588
Semi-minor axis of confidence ellipse (meter) 94
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 160
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55308
Number of stations at which the event was observed 48
Number of stations from which data was used for origin computation 15
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 84
Type of magnitude ML
Reference to an origin 124168961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-20 23:40:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARCI.HHZ. 2023-12-20T23:36:29.94 3.0 undecidable manual Sg 9.11 0
IV.TDS.HHZ. 2023-12-20T23:36:27.68 3.0 undecidable manual Sg 6.35 0
IV.CESX.HHZ. 2023-12-20T23:36:05.33 3.0 undecidable manual Sg 5.24 0
IV.FDMO.HHZ. 2023-12-20T23:36:01.62 3.0 undecidable manual Sg 2.88 0
IV.SSFR.HHZ. 2023-12-20T23:35:47.25 3.0 undecidable manual Pg 4.64 0
OT.OT14.EHZ. 2023-12-20T23:35:41.56 3.0 undecidable manual S 0.15 0
IV.MML1.EHZ. 2023-12-20T23:35:41.33 3.0 negative manual Pg 3.24 0
OT.OT12.EHZ. 2023-12-20T23:35:41.25 3.0 undecidable manual S -1.19 0
IV.GIGS.HHZ. 2023-12-20T23:35:40.72 3.0 undecidable manual S -1.65 0
IV.CSP1.EHZ. 2023-12-20T23:35:38.54 3.0 negative manual Pg 2.28 0
IV.AMUR.HHZ. 2023-12-20T23:35:38.31 3.0 undecidable manual Pn -0.04 0
IV.FDMO.HHZ. 2023-12-20T23:35:38.78 3.0 positive manual Pg 2.26 0
IV.NRCA.HHZ. 2023-12-20T23:35:36.64 3.0 negative manual P 2.21 0
IV.MRVN.HHZ. 2023-12-20T23:35:35.80 3.0 negative manual P 2.14 0
IV.MF5.EHZ. 2023-12-20T23:35:35.76 3.0 positive manual P 2.23 0
IV.MMO1.EHZ. 2023-12-20T23:35:35.29 3.0 positive manual P 1.8 0
IV.VVLD.HHZ. 2023-12-20T23:35:33.53 3.0 undecidable manual S -1.36 0
IV.GIUL.HHZ. 2023-12-20T23:35:29.90 3.0 undecidable manual P 1.01 0
OT.OT12.EHZ. 2023-12-20T23:35:27.21 3.0 positive manual P -0.15 0
IV.TERO.HHZ. 2023-12-20T23:35:27.16 3.0 negative manual P -1.66 0
IV.PTRJ.HHZ. 2023-12-20T23:35:26.27 0.3 undecidable manual S 191 56.7987 96 0.6 60
IV.SNAL.HHZ. 2023-12-20T23:35:26.70 3.0 negative manual P -1.63 0
IV.PIGN.HHZ. 2023-12-20T23:35:24.93 3.0 negative manual P 1.89 0
IV.FAGN.HHZ. 2023-12-20T23:35:24.10 3.0 positive manual P -1.27 0
IV.SGRT.HHZ. 2023-12-20T23:35:24.41 3.0 negative manual P -0.27 0
IV.VITU.HHZ. 2023-12-20T23:35:24.21 3.0 positive manual P 2.37 0
IV.LRP.EHZ. 2023-12-20T23:35:23.19 3.0 negative manual P -1.03 0
IV.PAOL.HHZ. 2023-12-20T23:35:23.97 3.0 undecidable manual P -0.71 0
IV.LPEL.HHZ. 2023-12-20T23:35:22.51 0.6 undecidable manual S 297 44.4222 98 0.12 47
OT.OT05.EHZ. 2023-12-20T23:35:22.91 3.0 negative manual P -0.23 0
IV.MELA.HHZ. 2023-12-20T23:35:22.10 0.6 undecidable manual S 115 42.2244 98 0.29 45
IV.VVLD.HHZ. 2023-12-20T23:35:22.17 3.0 positive manual P -0.95 0
IV.VCEL.EHZ. 2023-12-20T23:35:22.78 3.0 positive manual P -0.99 0
IV.T0110.HHZ. 2023-12-20T23:35:21.72 3.0 negative manual P -1 0
IV.POFI.HHZ. 2023-12-20T23:35:21.72 3.0 positive manual P -0.49 0
IV.MIDA.HHZ. 2023-12-20T23:35:21.70 0.6 undecidable manual S 234 42.1245 99 -0.07 47
OT.OT16.EHE. 2023-12-20T23:35:21.56 1.0 undecidable manual S 95 42.0246 99 -0.18 23
IV.APRC.HHZ. 2023-12-20T23:35:21.85 3.0 negative manual P -0.07 0
IV.BSSO.HHZ. 2023-12-20T23:35:19.59 0.6 undecidable manual S 189 36.0417 101 -0.58 43
IV.INTR.HHZ. 2023-12-20T23:35:18.92 3.0 undecidable manual P -0.63 0
IV.VAGA.HHZ. 2023-12-20T23:35:18.70 0.3 positive manual P 216 61.3941 95 -0.2 66
IV.PTRJ.HHZ. 2023-12-20T23:35:18.22 1.0 undecidable manual P 191 56.7987 96 0.01 23
IV.SGG.HHZ. 2023-12-20T23:35:18.33 0.3 negative manual P 204 58.1973 96 -0.09 68
IV.PABO.HHZ. 2023-12-20T23:35:17.50 0.6 undecidable manual S 240 26.3514 107 -0.17 47
IV.SACR.HHZ. 2023-12-20T23:35:17.54 0.1 negative manual P 176 52.1034 96 0.05 93
IV.GATE.HHZ. 2023-12-20T23:35:16.84 3.0 positive manual Pn 0.07 0
IV.LPEL.HHZ. 2023-12-20T23:35:16.23 0.1 negative manual P 297 44.4222 98 -0.08 92
IV.RNI2.HHZ. 2023-12-20T23:35:16.67 3.0 positive manual Pg 0.19 0
IV.MIDA.HHZ. 2023-12-20T23:35:15.98 0.1 positive manual P 234 42.1245 99 0.03 95
OT.OT16.EHE. 2023-12-20T23:35:15.68 0.1 undecidable manual P 95 42.0246 99 -0.25 90
IV.BSSO.HHZ. 2023-12-20T23:35:15.42 1.0 undecidable manual P 189 36.0417 101 0.4 22
IV.MELA.HHZ. 2023-12-20T23:35:15.76 0.1 negative manual P 115 42.2244 98 -0.21 91
IV.TRIV.HHZ. 2023-12-20T23:35:14.30 0.6 undecidable manual S 220 14.5743 127 -0.53 45
IV.PABO.HHZ. 2023-12-20T23:35:14.05 1.0 positive manual P 240 26.3514 107 0.47 22
IT.PLTA.HNZ. 2023-12-20T23:35:14.14 0.6 undecidable manual S 78 10.5783 138 0.1 49
IT.MCLF.HNZ. 2023-12-20T23:35:14.89 0.6 undecidable manual S 75 14.874 126 0 50
IT.LRNO.HNE. 2023-12-20T23:35:13.10 0.6 undecidable manual P 107 22.1556 112 0.13 48
IT.GLNS.HNZ. 2023-12-20T23:35:13.02 0.1 negative manual P 76 21.5673 113 0.14 96
IT.MCLF.HNZ. 2023-12-20T23:35:12.00 0.1 positive manual P 75 14.874 126 0.03 100
IV.TRIV.HHZ. 2023-12-20T23:35:12.40 0.6 positive manual P 220 14.5743 127 0.46 45
IT.PLTA.HNZ. 2023-12-20T23:35:11.46 0.1 undecidable manual P 78 10.5783 138 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.PLTA.HNN. ML:3.3 0.0189 0.28 AML other m 2023-12-20T23:35:14.49
IT.PLTA.HNE. ML:3.3 0.0184 0.22 AML other m 2023-12-20T23:35:15.12
IT.MCLF.HNN. ML:2.7 0.004 0.46 AML other m 2023-12-20T23:35:15.53
IT.MCLF.HNE. ML:2.7 0.0038 0.42 AML other m 2023-12-20T23:35:15.30
IV.TRIV.HNN. ML:2.1 0.001083 0.4 AML other m 2023-12-20T23:35:16.48
IV.TRIV.HHN. ML:2.0 0.0008939999999999999 0.42 AML other m 2023-12-20T23:35:16.48
IT.GLNS.HNN. ML:2.8 0.00353 0.26 AML other m 2023-12-20T23:35:17.33
IT.GLNS.HNE. ML:2.6 0.0021000000000000003 0.2 AML other m 2023-12-20T23:35:19.34
IV.TRIV.HHE. ML:1.9 0.0006035000000000001 0.94 AML other m 2023-12-20T23:35:20.24
IV.TRIV.HNE. ML:2.0 0.0007355 0.94 AML other m 2023-12-20T23:35:20.25
IV.PABO.HHN. ML:2.2 0.0007484999999999999 0.36 AML other m 2023-12-20T23:35:20.31
IV.PABO.HHE. ML:1.8 0.00031599999999999993 0.38 AML other m 2023-12-20T23:35:20.62
IV.MELA.HHN. ML:2.2 0.000442 0.84 AML other m 2023-12-20T23:35:22.31
IV.BSSO.HHE. ML:2.4 0.000957 1.68 AML other m 2023-12-20T23:35:23.02
IV.MIDA.HHN. ML:2.2 0.000481 0.32 AML other m 2023-12-20T23:35:23.19
IV.BSSO.HHN. ML:2.4 0.0008965 0.46 AML other m 2023-12-20T23:35:23.07
IV.LPEL.HNE. ML:2.5 0.000986 0.64 AML other m 2023-12-20T23:35:23.08
IV.LPEL.HNN. ML:2.6 0.001265 0.4 AML other m 2023-12-20T23:35:23.72
IV.LPEL.HHN. ML:2.7 0.00135 0.4 AML other m 2023-12-20T23:35:23.72
IV.LPEL.HHE. ML:2.5 0.000957 1.64 AML other m 2023-12-20T23:35:23.08
IV.MIDA.HHE. ML:2.2 0.0005955 0.86 AML other m 2023-12-20T23:35:23.95
IV.RNI2.HNN. ML:2.3 0.000596 0.12 AML other m 2023-12-20T23:35:24.58
IV.RNI2.HHN. ML:2.3 0.00063 0.12 AML other m 2023-12-20T23:35:24.58
IV.MELA.HHE. ML:2.2 0.000441 1.74 AML other m 2023-12-20T23:35:24.09
IV.RNI2.HHE. ML:2.4 0.000791 0.22 AML other m 2023-12-20T23:35:25.17
IV.RNI2.HNE. ML:2.4 0.0007375000000000001 0.24 AML other m 2023-12-20T23:35:25.18
IV.SACR.HHE. ML:1.9 0.00020899999999999998 0.72 AML other m 2023-12-20T23:35:25.32
IV.SACR.HHN. ML:1.9 0.000184 0.18 AML other m 2023-12-20T23:35:26.39
IV.GATE.HHN. ML:1.6 0.00011149999999999999 1.3 AML other m 2023-12-20T23:35:27.29
IV.PTRJ.HHN. ML:2.2 0.00035950000000000006 0.26 AML other m 2023-12-20T23:35:27.48
IV.PTRJ.HHE. ML:2.2 0.00036550000000000005 0.62 AML other m 2023-12-20T23:35:28.01
IV.INTR.HHE. ML:2.7 0.0009205 0.26 AML other m 2023-12-20T23:35:28.16
IV.INTR.HNE. ML:2.7 0.000907 0.24 AML other m 2023-12-20T23:35:28.17
IV.INTR.HHN. ML:2.9 0.0014249999999999998 0.3 AML other m 2023-12-20T23:35:28.26
IV.INTR.HNN. ML:2.8 0.0012900000000000001 0.3 AML other m 2023-12-20T23:35:28.27
IV.GATE.HHE. ML:1.6 0.0001033 1.66 AML other m 2023-12-20T23:35:28.06
IV.SGG.HHE. ML:2.0 0.00022849999999999997 0.34 AML other m 2023-12-20T23:35:29.26
IV.VAGA.HNN. ML:2.2 0.00028649999999999997 0.76 AML other m 2023-12-20T23:35:30.12
IV.APRC.HHE. ML:2.2 0.000243 0.6 AML other m 2023-12-20T23:35:33.67
IV.T0110.HHE. ML:2.5 0.0003815 0.22 AML other m 2023-12-20T23:35:33.87
IV.VVLD.HHE. ML:2.1 0.0001555 1.72 AML other m 2023-12-20T23:35:34.94
IV.VAGA.HHN. ML:2.2 0.0002875 0.28 AML other m 2023-12-20T23:35:34.10
IV.T0110.HHN. ML:2.3 0.00027600000000000004 0.22 AML other m 2023-12-20T23:35:34.35
IV.VVLD.HHN. ML:2.1 0.000167 1.16 AML other m 2023-12-20T23:35:34.35
IV.SGG.HHN. ML:2.0 0.0001825 0.32 AML other m 2023-12-20T23:35:34.70
IV.VAGA.HHE. ML:2.0 0.0002045 1.72 AML other m 2023-12-20T23:35:35.02
IV.VAGA.HNE. ML:2.0 0.00020549999999999998 1.7 AML other m 2023-12-20T23:35:35.88
IV.APRC.HHN. ML:2.4 0.0003575 1.16 AML other m 2023-12-20T23:35:35.70
IV.LRP.EHN. ML:1.7 0.00005105 0.32 AML other m 2023-12-20T23:35:35.91
IV.SGRT.HNE. ML:2.4 0.00031 0.66 AML other m 2023-12-20T23:35:37.28
IV.SGRT.HHE. ML:2.4 0.000323 0.66 AML other m 2023-12-20T23:35:37.28
IV.PIGN.HHN. ML:1.7 0.00006994999999999999 0.38 AML other m 2023-12-20T23:35:38.61
IV.VITU.HHE. ML:2.3 0.0003175 1.48 AML other m 2023-12-20T23:35:38.12
IV.SGRT.HHN. ML:2.4 0.000309 1.58 AML other m 2023-12-20T23:35:38.08
IV.SGRT.HNN. ML:2.4 0.0003185 1.58 AML other m 2023-12-20T23:35:38.08
IV.PIGN.HHE. ML:1.9 0.0000944 0.78 AML other m 2023-12-20T23:35:39.35
IV.POFI.HHN. ML:1.7 0.0000668 0.6 AML other m 2023-12-20T23:35:39.97
IV.POFI.HHE. ML:1.8 0.00008335 0.68 AML other m 2023-12-20T23:35:40.01
IV.PAOL.HHE. ML:1.9 0.000095 0.58 AML other m 2023-12-20T23:35:40.52
IV.VITU.HHN. ML:2.2 0.0002525 1.7 AML other m 2023-12-20T23:35:40.94
IV.VCEL.EHE. ML:2.4 0.0002655 1.58 AML other m 2023-12-20T23:35:41.15
IV.PAOL.HHN. ML:2.1 0.000136 0.36 AML other m 2023-12-20T23:35:42.24
IV.VCEL.EHN. ML:2.3 0.0002465 0.56 AML other m 2023-12-20T23:35:42.99
IV.LRP.EHE. ML:2.0 0.0001023 1.1 AML other m 2023-12-20T23:35:42.88
OT.OT14.EHE. ML:2.7 0.000517 1.34 AML other m 2023-12-20T23:35:43.81
IV.FAGN.HHE. ML:2.4 0.0002335 0.58 AML other m 2023-12-20T23:35:44.35
IV.FAGN.HHN. ML:2.5 0.000299 0.5 AML other m 2023-12-20T23:35:44.56
IV.GIGS.HHN. ML:1.6 0.00003465 1.22 AML other m 2023-12-20T23:35:45.15
OT.OT14.EHN. ML:2.7 0.0004285 0.76 AML other m 2023-12-20T23:35:45.57
IV.SNAL.HHN. ML:2.2 0.00012725 0.54 AML other m 2023-12-20T23:35:45.67
IV.GIGS.HHE. ML:1.6 0.00003045 1.28 AML other m 2023-12-20T23:35:46.18
IV.SNAL.HNN. ML:2.2 0.00011315 0.52 AML other m 2023-12-20T23:35:46.67
IV.SNAL.HHE. ML:2.3 0.0001525 1.58 AML other m 2023-12-20T23:35:48.83
IV.SNAL.HNE. ML:2.3 0.000161 0.58 AML other m 2023-12-20T23:35:48.84
IV.GIUL.HHN. ML:1.8 0.0000439 1.22 AML other m 2023-12-20T23:35:54.10
IV.GIUL.HHE. ML:1.7 0.0000394 0.84 AML other m 2023-12-20T23:35:55.55
IV.MRVN.HHN. ML:1.8 0.000029900000000000002 0.46 AML other m 2023-12-20T23:35:56.80
IV.MRVN.HHE. ML:1.8 0.00003205 0.46 AML other m 2023-12-20T23:35:58.91
IV.NRCA.HHE. ML:2.1 0.0000523 1.58 AML other m 2023-12-20T23:36:00.79
IV.NRCA.HHN. ML:2.1 0.00005145 0.42 AML other m 2023-12-20T23:36:00.63
IV.CSP1.EHN. ML:2.6 0.00014500000000000003 0.38 AML other m 2023-12-20T23:36:04.41
IV.CSP1.EHE. ML:2.5 0.0001235 0.98 AML other m 2023-12-20T23:36:08.53
IV.AMUR.HHN. ML:2.2 0.0000446 0.74 AML other m 2023-12-20T23:36:10.44
IV.AMUR.HHE. ML:2.1 0.00004055 0.44 AML other m 2023-12-20T23:36:14.23
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