Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 10-12-2023 and time 06:30:07 (Italy) in region 1 km W Longano (IS)

A magnitude ML 2.1 earthquake occured in region: 1 km W Longano (IS), on

  • 10-12-2023 05:30:07 (UTC)
  • 10-12-2023 06:30:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.5240, 14.2300 at 10 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
Longano IS 1 690 690
Sant'Agapito IS 2 1496 2186
Monteroduni IS 4 2264 4450
Castelpizzuto IS 5 155 4605
Gallo Matese CE 7 579 5184
Macchia d'Isernia IS 7 1035 6219
Pettoranello del Molise IS 7 460 6679
Isernia IS 7 21842 28521
Letino CE 8 712 29233
Fontegreca CE 8 811 30044
Capriati a Volturno CE 9 1541 31585
Ciorlano CE 10 426 32011
Prata Sannita CE 10 1502 33513
Montaquila IS 11 2456 35969
Castelpetroso IS 11 1680 37649
Roccamandolfi IS 11 938 38587
Pesche IS 11 1661 40248
Carpinone IS 11 1157 41405
Valle Agricola CE 11 890 42295
Fornelli IS 12 1909 44204
Santa Maria del Molise IS 12 665 44869
Colli a Volturno IS 13 1349 46218
Miranda IS 14 1047 47265
Cantalupo nel Sannio IS 14 739 48004
Pratella CE 14 1565 49569
Pozzilli IS 14 2380 51949
Filignano IS 15 648 52597
Ailano CE 15 1369 53966
Macchiagodena IS 15 1854 55820
Sessano del Molise IS 15 727 56547
San Massimo CB 15 855 57402
Venafro IS 16 11280 68682
Rocchetta a Volturno IS 16 1113 69795
Raviscanina CE 17 1319 71114
Sesto Campano IS 17 2388 73502
Scapoli IS 18 680 74182
Acquaviva d'Isernia IS 18 425 74607
Cerro al Volturno IS 18 1281 75888
Sant'Angelo d'Alife CE 18 2270 78158
Conca Casale IS 19 200 78358
Roccasicura IS 19 550 78908
San Gregorio Matese CE 19 988 79896
Pescolanciano IS 20 855 80751
Forlì del Sannio IS 20 675 81426

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km N of Caserta (76326 inhabitants)
61 Km N of Aversa (53047 inhabitants)
64 Km NW of Benevento (60091 inhabitants)
65 Km N of Acerra (59573 inhabitants)
66 Km N of Giugliano in Campania (122974 inhabitants)
67 Km N of Afragola (65057 inhabitants)
69 Km N of Casoria (77642 inhabitants)
70 Km N of Marano di Napoli (59874 inhabitants)
76 Km N of Pozzuoli (81661 inhabitants)
76 Km N of Napoli (974074 inhabitants)
79 Km N of Portici (55274 inhabitants)
80 Km N of Ercolano (53709 inhabitants)
83 Km NW of Avellino (54857 inhabitants)
83 Km N of Torre del Greco (86275 inhabitants)
90 Km N of Scafati (50787 inhabitants)
92 Km S of Chieti (51815 inhabitants)
95 Km N of Castellammare di Stabia (66466 inhabitants)
98 Km W of San Severo (53905 inhabitants)
100 Km NW of Cava de' Tirreni (53659 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 2.1 2023-12-10
05:30:07		 41.5243 14.2298 10 2023-12-10
05:40:39		 Sala Sismica INGV-Roma 123933711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-10 05:30:07 ± 0.12
Latitude 41.5243 ± 0.0072
Longitude 14.2298 ± 0.0096
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123933711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 983
Semi-minor axis of confidence ellipse (meter) 103
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 980.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.88313
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 123933711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-10 05:40:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT12.EHZ. 2023-12-10T05:30:50.58 3.0 undecidable manual S 2.91 0
IV.FAGN.HHZ. 2023-12-10T05:30:36.77 0.3 undecidable manual S 327 98.0241 50 0.7 55
OT.OT14.EHZ. 2023-12-10T05:30:32.03 3.0 negative manual P 1.81 0
IV.INTR.HHZ. 2023-12-10T05:30:26.14 0.6 undecidable manual S 334 60.3951 50 0.12 46
IV.FAGN.HHZ. 2023-12-10T05:30:23.26 0.6 negative manual P 327 98.0241 50 -0.59 38
IV.GIUL.HHZ. 2023-12-10T05:30:21.94 0.1 undecidable manual P 273 81.0522 50 0.7 76
IV.T0110.HHZ. 2023-12-10T05:30:21.40 1.0 negative manual P 335 86.7465 50 -0.71 19
IV.MELA.HHZ. 2023-12-10T05:30:20.45 0.6 positive manual P 75 77.0673 50 -0.17 45
IV.MCI.EHZ. 2023-12-10T05:30:19.66 0.3 undecidable manual S 264 34.8429 50 0.46 68
IV.PTRJ.HHZ. 2023-12-10T05:30:18.90 0.3 undecidable manual S 125 30.5472 50 0.84 59
IV.BSSO.HHZ. 2023-12-10T05:30:17.70 0.3 undecidable manual S 85 30.3474 50 -0.29 71
IV.INTR.HHZ. 2023-12-10T05:30:17.11 0.3 undecidable manual P 334 60.3951 50 -0.94 54
IV.RNI2.HHZ. 2023-12-10T05:30:16.10 0.6 undecidable manual S 342 20.868 115 0.93 39
IV.SGG.HHZ. 2023-12-10T05:30:15.25 0.3 undecidable manual S 141 19.6692 117 0.45 70
IV.POFI.HHZ. 2023-12-10T05:30:15.02 3.0 positive manual P 48.0186 -1.12 0
IV.CERA.HHZ. 2023-12-10T05:30:14.90 0.6 undecidable manual S 295 19.3695 117 0.2 49
IV.PTRJ.HHZ. 2023-12-10T05:30:13.37 0.3 positive manual P 125 30.5472 50 -0.09 74
IV.MIDA.HHZ. 2023-12-10T05:30:13.49 0.6 undecidable manual S 9 13.1757 127 0.62 45
IV.PIGN.HHZ. 2023-12-10T05:30:13.62 0.3 negative manual P 187 36.2415 50 -0.71 62
IV.BSSO.HHZ. 2023-12-10T05:30:13.61 0.1 undecidable manual P 85 30.3474 50 0.19 97
IV.MCI.EHZ. 2023-12-10T05:30:13.33 0.6 negative manual P 264 34.8429 50 -0.78 40
IV.VAGA.HHZ. 2023-12-10T05:30:13.22 0.6 undecidable manual S 178 12.0768 129 0.64 44
IV.SGG.HHZ. 2023-12-10T05:30:11.34 0.1 negative manual P 141 19.6692 117 -0.24 98
IV.RNI2.HHZ. 2023-12-10T05:30:11.48 0.1 positive manual P 342 20.868 115 -0.31 96
IV.CERA.HHZ. 2023-12-10T05:30:11.08 0.3 undecidable manual P 295 19.3695 117 -0.44 70
IV.MIDA.HHZ. 2023-12-10T05:30:10.29 0.1 positive manual P 9 13.1757 127 -0.17 100
IV.VAGA.HHZ. 2023-12-10T05:30:09.95 0.1 undecidable manual P 178 12.0768 129 -0.34 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HNN. ML:2.4 0.00216 1.66 AML other m 2023-12-10T05:30:15.85
IV.CERA.HHN. ML:2.5 0.0022249999999999995 1.66 AML other m 2023-12-10T05:30:15.85
IV.MIDA.HHE. ML:2.1 0.00138 0.68 AML other m 2023-12-10T05:30:15.02
IV.MIDA.HHN. ML:2.0 0.001185 0.46 AML other m 2023-12-10T05:30:15.59
IV.RNI2.HNN. ML:2.0 0.0008435000000000001 1.48 AML other m 2023-12-10T05:30:16.10
IV.RNI2.HHN. ML:2.1 0.000884 1.5 AML other m 2023-12-10T05:30:16.09
IV.SGG.HHE. ML:2.3 0.00148 0.5 AML other m 2023-12-10T05:30:17.54
IV.SGG.HHN. ML:2.2 0.0013900000000000002 0.42 AML other m 2023-12-10T05:30:17.75
IV.RNI2.HHE. ML:2.2 0.001055 0.48 AML other m 2023-12-10T05:30:17.62
IV.RNI2.HNE. ML:2.2 0.001009 0.46 AML other m 2023-12-10T05:30:17.63
IV.CERA.HNE. ML:2.4 0.00196 1.36 AML other m 2023-12-10T05:30:19.71
IV.CERA.HHE. ML:2.4 0.002 1.34 AML other m 2023-12-10T05:30:19.70
IV.MCI.EHE. ML:2.2 0.0007224999999999999 1.74 AML other m 2023-12-10T05:30:19.00
IV.MCI.EHN. ML:2.1 0.00048150000000000005 0.26 AML other m 2023-12-10T05:30:20.69
IV.PTRJ.HHN. ML:2.0 0.00046550000000000004 1.46 AML other m 2023-12-10T05:30:20.09
IV.BSSO.HHE. ML:1.8 0.0003215 1.12 AML other m 2023-12-10T05:30:22.32
IV.POFI.HHN. ML:1.9 0.00023299999999999997 0.3 AML other m 2023-12-10T05:30:23.53
IV.POFI.HHE. ML:1.8 0.0001535 0.6 AML other m 2023-12-10T05:30:23.75
IV.PTRJ.HHE. ML:2.1 0.0005805000000000001 0.38 AML other m 2023-12-10T05:30:24.73
IV.INTR.HHE. ML:2.1 0.0002535 0.82 AML other m 2023-12-10T05:30:27.09
IV.BSSO.HHN. ML:1.8 0.00032700000000000003 0.82 AML other m 2023-12-10T05:30:27.43
IV.INTR.HHN. ML:2.2 0.0002855 0.62 AML other m 2023-12-10T05:30:29.76
IV.INTR.HNN. ML:2.2 0.000299 0.62 AML other m 2023-12-10T05:30:29.77
IV.INTR.HNE. ML:2.2 0.00029900000000000006 0.6 AML other m 2023-12-10T05:30:29.85
IV.T0110.HHN. ML:2.2 0.00017749999999999998 0.48 AML other m 2023-12-10T05:30:37.58
IV.T0110.HHE. ML:2.3 0.000234 0.4 AML other m 2023-12-10T05:30:38.36
IV.FAGN.HHN. ML:2.3 0.000224 0.4 AML other m 2023-12-10T05:30:40.36
IV.FAGN.HHE. ML:2.3 0.00021650000000000003 0.38 AML other m 2023-12-10T05:30:42.68
IV.CERT.HHE. ML:2.0 0.0000738 0.52 AML other m 2023-12-10T05:30:45.38
IV.CERT.HHN. ML:1.7 0.00004145 0.86 AML other m 2023-12-10T05:30:45.84
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