Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 06-07-2023 and time 04:21:31 (Italy) in region 1 km SW Castel San Vincenzo (IS)

A magnitude ML 1.8 earthquake occured in region: 1 km SW Castel San Vincenzo (IS), on

  • 06-07-2023 02:21:31 (UTC)
  • 06-07-2023 04:21:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6480, 14.0560 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
Castel San Vincenzo IS 1 516 516
Pizzone IS 3 329 845
Rocchetta a Volturno IS 4 1113 1958
Scapoli IS 4 680 2638
Cerro al Volturno IS 4 1281 3919
Colli a Volturno IS 7 1349 5268
Montenero Val Cocchiara IS 8 538 5806
Acquaviva d'Isernia IS 8 425 6231
Fornelli IS 9 1909 8140
Alfedena AQ 10 864 9004
Rionero Sannitico IS 10 1118 10122
Montaquila IS 10 2456 12578
Scontrone AQ 11 574 13152
San Biagio Saracinisco FR 11 349 13501
Filignano IS 11 648 14149
Forlì del Sannio IS 12 675 14824
Macchia d'Isernia IS 13 1035 15859
Barrea AQ 13 726 16585
Acquafondata FR 14 263 16848
Pozzilli IS 15 2380 19228
Viticuso FR 15 353 19581
Picinisco FR 16 1218 20799
Isernia IS 16 21842 42641
Roccasicura IS 16 550 43191
Vallerotonda FR 16 1581 44772
Miranda IS 16 1047 45819
Castel di Sangro AQ 16 6538 52357
Civitella Alfedena AQ 16 296 52653
Monteroduni IS 17 2264 54917
Settefrati FR 17 728 55645
Conca Casale IS 17 200 55845
Villetta Barrea AQ 18 653 56498
Venafro IS 18 11280 67778
Sant'Agapito IS 18 1496 69274
Villa Latina FR 18 1241 70515
San Pietro Avellana IS 19 503 71018
Pesche IS 19 1661 72679
Sant'Elia Fiumerapido FR 20 6166 78845

Municipalities with at least 50000 inhabitants

An earthquake occurred to
68 Km NW of Caserta (76326 inhabitants)
76 Km N of Aversa (53047 inhabitants)
79 Km S of Chieti (51815 inhabitants)
81 Km N of Giugliano in Campania (122974 inhabitants)
82 Km NW of Acerra (59573 inhabitants)
83 Km N of Afragola (65057 inhabitants)
84 Km NW of Benevento (60091 inhabitants)
84 Km N of Marano di Napoli (59874 inhabitants)
85 Km N of Casoria (77642 inhabitants)
89 Km N of Pozzuoli (81661 inhabitants)
91 Km N of Napoli (974074 inhabitants)
92 Km S of Pescara (121014 inhabitants)
95 Km N of Portici (55274 inhabitants)
95 Km SE of L'Aquila (69753 inhabitants)
96 Km N of Ercolano (53709 inhabitants)
97 Km S of Montesilvano (53738 inhabitants)
98 Km E of Latina (125985 inhabitants)
99 Km N of Torre del Greco (86275 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 2023-07-06
02:21:31		 41.6482 14.0555 10 2023-07-06
02:27:22		 Sala Sismica INGV-Roma 119006091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-06 02:21:31 ± 0.08
Latitude 41.6482 ± 0.0063
Longitude 14.0555 ± 0.0060
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 119006091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 730
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 15
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41459
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 119006091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-06 02:27:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RORO.HHZ. 2023-07-06T02:23:13.59 3.0 undecidable manual Sn 2.28 0
IV.PIPA.HHZ. 2023-07-06T02:23:09.45 3.0 undecidable manual Sg 8.3 0
IV.LPDG.HHZ. 2023-07-06T02:22:58.77 3.0 positive manual Pn 4.86 0
7C.SPAOL.HNZ. 2023-07-06T02:22:43.44 3.0 undecidable manual Pg 14.38 0
ST.RONC.EHZ. 2023-07-06T02:22:26.57 3.0 positive manual Pn 4.59 0
GU.POPM.HHZ. 2023-07-06T02:22:07.23 3.0 undecidable manual Pg 8.06 0
IV.LRP.EHZ. 2023-07-06T02:21:45.67 0.6 undecidable manual S 270 38.8278 50 0.83 37
IV.BSSO.HHZ. 2023-07-06T02:21:45.58 3.0 undecidable manual S 104 46.0206 50 -1.18 0
IV.SGG.HHZ. 2023-07-06T02:21:44.96 0.6 undecidable manual S 137 39.5271 50 -0.06 47
IV.PABO.HHZ. 2023-07-06T02:21:42.39 0.6 undecidable manual S 68 29.6481 50 0.01 48
IV.POFI.HHZ. 2023-07-06T02:21:42.34 0.1 undecidable manual S 285 29.4483 50 0 96
IV.VAGA.HHZ. 2023-07-06T02:21:42.95 0.6 undecidable manual S 150 29.748 50 0.54 43
IV.ATMI.HHZ. 2023-07-06T02:21:41.72 3.0 undecidable manual P -0.59 0
IV.BSSO.HHZ. 2023-07-06T02:21:40.40 0.1 undecidable manual P 104 46.0206 50 0.02 93
IV.LRP.EHZ. 2023-07-06T02:21:39.19 0.1 undecidable manual P 270 38.8278 50 -0.08 93
IV.SGG.HHZ. 2023-07-06T02:21:39.22 0.6 undecidable manual P 137 39.5271 50 -0.16 46
IV.VAGA.HHZ. 2023-07-06T02:21:37.71 0.6 positive manual P 150 29.748 50 -0.16 47
IV.PABO.HHZ. 2023-07-06T02:21:37.58 0.1 undecidable manual P 68 29.6481 50 -0.27 91
IV.POFI.HHZ. 2023-07-06T02:21:37.57 0.1 undecidable manual P 285 29.4483 50 -0.25 92
IV.RNI2.HHZ. 2023-07-06T02:21:36.91 0.6 undecidable manual S 53 10.0788 133 0.44 46
IV.CERA.HHZ. 2023-07-06T02:21:35.46 0.6 undecidable manual S 209 6.3936 146 -0.17 49
IV.RNI2.HHZ. 2023-07-06T02:21:34.51 0.1 positive manual P 53 10.0788 133 0.07 98
IV.MOMA.HHZ. 2023-07-06T02:21:33.80 3.0 undecidable manual P 0.07 0
IV.CERA.HHZ. 2023-07-06T02:21:33.93 0.1 undecidable manual P 209 6.3936 146 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHE. ML:2.0 0.001665 0.9 AML other m 2023-07-06T02:21:35.67
IV.CERA.HNE. ML:2.0 0.0016099999999999999 0.9 AML other m 2023-07-06T02:21:35.67
IV.RNI2.HHE. ML:2.5 0.00387 0.34 AML other m 2023-07-06T02:21:38.19
IV.RNI2.HNE. ML:2.4 0.0037199999999999998 0.34 AML other m 2023-07-06T02:21:38.19
IV.CERA.HHN. ML:2.1 0.001895 0.34 AML other m 2023-07-06T02:21:38.71
IV.CERA.HNN. ML:2.0 0.00181 0.42 AML other m 2023-07-06T02:21:38.71
IV.RNI2.HHN. ML:2.3 0.002725 0.4 AML other m 2023-07-06T02:21:39.26
IV.RNI2.HNN. ML:2.3 0.0026 0.38 AML other m 2023-07-06T02:21:39.27
IV.PABO.HHE. ML:1.4 0.00014000000000000001 0.38 AML other m 2023-07-06T02:21:43.48
IV.POFI.HHN. ML:1.6 0.00020600000000000002 0.48 AML other m 2023-07-06T02:21:43.74
IV.PABO.HHN. ML:1.7 0.0002355 0.52 AML other m 2023-07-06T02:21:45.45
IV.LRP.EHN. ML:1.4 0.00009665 0.54 AML other m 2023-07-06T02:21:46.62
IV.VAGA.HHN. ML:1.9 0.000372 0.3 AML other m 2023-07-06T02:21:46.83
IV.SGG.HHN. ML:1.6 0.000142 1.66 AML other m 2023-07-06T02:21:46.13
IV.POFI.HHE. ML:1.4 0.00013949999999999998 0.26 AML other m 2023-07-06T02:21:47.41
IV.VAGA.HNN. ML:1.8 0.000343 1.08 AML other m 2023-07-06T02:21:47.83
IV.LRP.EHE. ML:1.8 0.000211 0.54 AML other m 2023-07-06T02:21:47.37
IV.BSSO.HHE. ML:1.4 0.00007535 0.3 AML other m 2023-07-06T02:21:48.46
IV.VAGA.HNE. ML:1.8 0.000275 0.68 AML other m 2023-07-06T02:21:48.63
IV.VAGA.HHE. ML:1.7 0.0002325 1.22 AML other m 2023-07-06T02:21:48.63
IV.SGG.HHE. ML:1.7 0.00016549999999999998 0.5 AML other m 2023-07-06T02:21:48.76
IV.BSSO.HHN. ML:1.4 0.00007355 0.86 AML other m 2023-07-06T02:21:55.38
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