Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 31-12-2023 and time 15:16:10 (Italy) in region 5 km W Larino (CB)

A magnitude ML 1.8 earthquake occured in region: 5 km W Larino (CB), on

  • 31-12-2023 14:16:10 (UTC)
  • 31-12-2023 15:16:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7950, 14.8580 at 9 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
Larino CB 5 6793 6793
Guardialfiera CB 5 1065 7858
Casacalenda CB 6 2135 9993
Montorio nei Frentani CB 7 437 10430
Provvidenti CB 9 119 10549
Montelongo CB 10 365 10914
Lupara CB 11 505 11419
Morrone del Sannio CB 11 587 12006
Bonefro CB 12 1384 13390
Palata CB 12 1726 15116
Montecilfone CB 12 1348 16464
Acquaviva Collecroce CB 12 672 17136
Ripabottoni CB 13 514 17650
Castelmauro CB 13 1505 19155
Ururi CB 13 2693 21848
Castelbottaccio CB 13 312 22160
Rotello CB 13 1212 23372
Guglionesi CB 14 5321 28693
Civitacampomarano CB 14 417 29110
Santa Croce di Magliano CB 14 4435 33545
Castellino del Biferno CB 15 545 34090
Tavenna CB 15 718 34808
San Giuliano di Puglia CB 15 1042 35850
San Martino in Pensilis CB 15 4793 40643
Lucito CB 16 696 41339
San Felice del Molise CB 17 634 41973
Colletorto CB 18 1938 43911
Petrella Tifernina CB 18 1170 45081
Portocannone CB 19 2551 47632
Campolieto CB 19 839 48471
Sant'Elia a Pianisi CB 19 1818 50289
Montenero di Bisaccia CB 19 6675 56964
Montefalcone nel Sannio CB 20 1556 58520

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km W of San Severo (53905 inhabitants)
68 Km NW of Foggia (151991 inhabitants)
74 Km N of Benevento (60091 inhabitants)
84 Km SE of Chieti (51815 inhabitants)
90 Km W of Manfredonia (57279 inhabitants)
91 Km NE of Caserta (76326 inhabitants)
92 Km SE of Pescara (121014 inhabitants)
98 Km N of Avellino (54857 inhabitants)
99 Km SE of Montesilvano (53738 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 1.8 2023-12-31
14:16:10		 41.7952 14.8578 9 2023-12-31
14:23:44		 Sala Sismica INGV-Roma 124375881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-31 14:16:10 ± 0.09
Latitude 41.7952 ± 0.0081
Longitude 14.8578 ± 0.0072
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124375881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 563
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.96317
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 22
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 124375881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-31 14:23:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2023-12-31T14:17:55.86 3.0 undecidable manual Pg 21.07 0
IV.SCTE.HHZ. 2023-12-31T14:17:43.29 3.0 undecidable manual Sn 2.53 0
GU.IMI.HHZ. 2023-12-31T14:17:39.79 3.0 undecidable manual Pn 7.16 0
IV.CSNT.HHZ. 2023-12-31T14:17:34.72 3.0 undecidable manual Sn -2.89 0
IV.HPAC.HHZ. 2023-12-31T14:17:29.34 3.0 undecidable manual Pn 2.95 0
IV.CAVT.HHZ. 2023-12-31T14:17:27.74 3.0 negative manual Pg 10.51 0
IV.NARO.HHZ. 2023-12-31T14:17:26.61 3.0 undecidable manual Sg 4.82 0
IV.MFNL.HHZ. 2023-12-31T14:17:26.54 3.0 positive manual Pg 11.37 0
IV.PARC.HHZ. 2023-12-31T14:17:25.30 3.0 undecidable manual Sn -1.43 0
IV.CTI.HHZ. 2023-12-31T14:17:22.29 3.0 undecidable manual Pn -0.78 0
GU.GSCL.HHZ. 2023-12-31T14:17:16.98 3.0 negative manual Pn 4.98 0
IV.SPS2.HHZ. 2023-12-31T14:17:04.00 3.0 undecidable manual Pg 9.62 0
IV.PTRP.HHZ. 2023-12-31T14:16:59.14 3.0 undecidable manual S -0.77 0
IV.RIBO.EHZ.01 2023-12-31T14:16:58.36 3.0 undecidable manual Pn -0.04 0
IV.FDMO.HHZ. 2023-12-31T14:16:42.82 3.0 negative manual Pn 1.48 0
IV.CSP1.EHZ. 2023-12-31T14:16:42.25 3.0 negative manual Pn 1.22 0
IV.NRCA.HHZ. 2023-12-31T14:16:40.48 3.0 undecidable manual Pn 1.17 0
OT.OT14.EHZ. 2023-12-31T14:16:38.27 0.3 undecidable manual S 82 87.4458 50 1.43 38
IV.AMUR.HHZ. 2023-12-31T14:16:38.46 3.0 undecidable manual Pn -0.11 0
IV.CERT.HHZ. 2023-12-31T14:16:37.78 3.0 positive manual P 1.93 0
IV.CAMP.HHZ. 2023-12-31T14:16:37.66 3.0 undecidable manual P 3.18 0
IV.RM33.EHZ. 2023-12-31T14:16:37.16 3.0 undecidable manual P 1.2 0
IV.INTR.HHZ. 2023-12-31T14:16:34.53 3.0 undecidable manual S -2.26 0
IV.MRVN.HHZ. 2023-12-31T14:16:34.62 3.0 negative manual P 0.73 0
IV.VCEL.EHZ. 2023-12-31T14:16:29.04 0.1 undecidable manual P 309 106.9152 50 0.31 79
IV.SNAL.HHZ. 2023-12-31T14:16:29.68 3.0 negative manual P 1.16 0
IV.MCI.EHZ. 2023-12-31T14:16:26.55 0.3 negative manual P 249 92.9403 50 -0.03 65
IV.MIDA.HHZ. 2023-12-31T14:16:26.85 0.6 undecidable manual S 251 52.8027 50 -0.75 38
OT.OT14.EHZ. 2023-12-31T14:16:26.04 1.0 undecidable manual P 82 87.4458 50 0.31 21
IV.MSAG.HHZ. 2023-12-31T14:16:25.86 0.1 undecidable manual P 96 87.5457 50 0.12 86
OT.OT12.EHZ. 2023-12-31T14:16:25.59 0.1 undecidable manual P 101 88.8444 50 -0.35 81
IV.INTR.HHZ. 2023-12-31T14:16:23.53 3.0 negative manual P -1.69 0
IV.LPEL.HHZ. 2023-12-31T14:16:22.02 0.6 positive manual P 297 62.2932 50 0.17 45
IV.VAGA.HNZ. 2023-12-31T14:16:22.45 0.6 undecidable manual P 231 66.6777 50 -0.08 45
IV.APRC.HHZ. 2023-12-31T14:16:21.31 0.6 positive manual P 94 56.7987 50 0.3 44
IV.RNI2.HHZ. 2023-12-31T14:16:21.58 0.6 undecidable manual P 260 59.2962 50 0.19 45
IV.MELA.HHZ. 2023-12-31T14:16:20.21 0.6 undecidable manual S 114 24.3534 110 0.68 41
IV.PTRJ.HHZ. 2023-12-31T14:16:20.53 0.6 negative manual P 210 55.0005 50 -0.2 45
IV.VITU.HHZ. 2023-12-31T14:16:20.75 3.0 undecidable manual P -2.57 0
OT.OT05.EHZ. 2023-12-31T14:16:20.62 0.6 positive manual P 103 63.492 50 -1.41 27
OT.OT16.EHZ. 2023-12-31T14:16:19.45 0.6 undecidable manual S 80 26.1516 109 -0.69 41
IV.SACR.HHZ. 2023-12-31T14:16:19.28 0.1 undecidable manual P 196 45.9207 50 -0.04 94
IV.TRIV.HHZ. 2023-12-31T14:16:19.80 0.6 undecidable manual S 263 25.6521 109 -0.15 48
IV.MIDA.HHZ. 2023-12-31T14:16:19.91 0.6 undecidable manual P 251 52.8027 50 -0.48 42
IV.BSSO.HHZ. 2023-12-31T14:16:18.19 0.6 positive manual P 218 35.2425 50 0.51 43
IV.GATE.HHZ. 2023-12-31T14:16:17.86 0.6 undecidable manual P 172 31.5462 106 0.75 40
IV.TRIV.HHZ. 2023-12-31T14:16:16.45 0.6 undecidable manual P 263 25.6521 109 0.47 45
IT.GLNS.HNZ. 2023-12-31T14:16:16.32 0.3 undecidable manual S 21 13.875 122 0.07 74
OT.OT16.EHZ. 2023-12-31T14:16:15.30 0.1 undecidable manual P 80 26.1516 109 -0.78 79
IV.MELA.HHZ. 2023-12-31T14:16:15.52 1.0 undecidable manual P 114 24.3534 110 -0.22 24
IT.MCLF.HNZ. 2023-12-31T14:16:15.93 0.3 undecidable manual S 352 11.9769 126 0.24 72
IT.PLTA.HNZ. 2023-12-31T14:16:15.85 0.6 undecidable manual S 331 11.5773 127 0.25 48
IT.LRNO.HNZ. 2023-12-31T14:16:14.23 0.6 undecidable manual S 76 5.2947 149 0.12 50
IT.LRNO.HNZ. 2023-12-31T14:16:13.22 1.0 positive manual P 76 5.2947 149 0.62 22
IT.PLTA.HNZ. 2023-12-31T14:16:13.29 0.1 undecidable manual P 331 11.5773 127 -0.17 97
IT.GLNS.HNZ. 2023-12-31T14:16:13.59 0.1 positive manual P 21 13.875 122 -0.25 95
IT.MCLF.HNZ. 2023-12-31T14:16:13.48 0.1 undecidable manual P 352 11.9769 126 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.LRNO.HNE. ML:2.2 0.0028599999999999997 1.42 AML other m 2023-12-31T14:16:16.84
IT.LRNO.HNN. ML:2.2 0.003115 1.52 AML other m 2023-12-31T14:16:16.99
IV.MELA.HHE. ML:1.8 0.0004275 0.4 AML other m 2023-12-31T14:16:20.05
IV.MELA.HHN. ML:1.8 0.0004285 0.26 AML other m 2023-12-31T14:16:21.21
IV.TRIV.HNN. ML:1.6 0.000214 1.18 AML other m 2023-12-31T14:16:21.29
IV.TRIV.HHE. ML:1.5 0.000195 0.96 AML other m 2023-12-31T14:16:22.68
IV.TRIV.HNE. ML:1.6 0.0002385 0.96 AML other m 2023-12-31T14:16:22.20
IV.TRIV.HHN. ML:1.5 0.0001795 0.32 AML other m 2023-12-31T14:16:22.29
IV.BSSO.HHN. ML:1.4 0.00011549999999999999 0.3 AML other m 2023-12-31T14:16:25.94
IV.BSSO.HHE. ML:1.4 0.0001029 0.38 AML other m 2023-12-31T14:16:27.26
IV.GATE.HHE. ML:1.6 0.000206 0.58 AML other m 2023-12-31T14:16:27.35
IV.GATE.HNE. ML:1.7 0.000241 0.6 AML other m 2023-12-31T14:16:27.34
IV.GATE.HNN. ML:1.6 0.000204 0.64 AML other m 2023-12-31T14:16:27.34
IV.GATE.HHN. ML:1.6 0.0001985 0.64 AML other m 2023-12-31T14:16:27.34
IV.MIDA.HHN. ML:1.7 0.000136 0.2 AML other m 2023-12-31T14:16:28.68
IV.MIDA.HHE. ML:1.9 0.0001815 0.8 AML other m 2023-12-31T14:16:28.38
IV.RNI2.HHN. ML:1.9 0.00015900000000000002 0.7 AML other m 2023-12-31T14:16:30.09
IV.APRC.HHE. ML:1.9 0.0001715 0.18 AML other m 2023-12-31T14:16:30.34
IV.LPEL.HHE. ML:1.8 0.00014000000000000001 0.14 AML other m 2023-12-31T14:16:30.60
IV.RNI2.HHE. ML:1.9 0.000165 1.36 AML other m 2023-12-31T14:16:30.00
IV.RNI2.HNE. ML:1.9 0.000168 1.36 AML other m 2023-12-31T14:16:30.00
IV.APRC.HHN. ML:2.1 0.00027150000000000004 0.84 AML other m 2023-12-31T14:16:30.54
IV.LPEL.HHN. ML:1.9 0.00016249999999999997 0.2 AML other m 2023-12-31T14:16:31.32
IV.RNI2.HNN. ML:1.8 0.0001455 0.58 AML other m 2023-12-31T14:16:31.39
IV.INTR.HHE. ML:1.9 0.00010005 0.7 AML other m 2023-12-31T14:16:35.96
IV.VAGA.HHE. ML:1.8 0.00011444999999999999 0.22 AML other m 2023-12-31T14:16:38.79
IV.VITU.HHE. ML:2.0 0.00015 0.22 AML other m 2023-12-31T14:16:39.82
IV.VITU.HHN. ML:1.9 0.0001265 0.56 AML other m 2023-12-31T14:16:40.12
IV.INTR.HHN. ML:2.0 0.000118 0.3 AML other m 2023-12-31T14:16:41.53
IV.VAGA.HHN. ML:1.8 0.00010045000000000002 0.58 AML other m 2023-12-31T14:16:42.20
IV.MCI.EHE. ML:2.1 0.00014600000000000003 0.48 AML other m 2023-12-31T14:16:46.74
IV.MCI.EHN. ML:2.0 0.00009845000000000001 0.48 AML other m 2023-12-31T14:16:47.05
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