Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 21-01-2022 and time 02:43:51 (Italy) in region 3 km S Aquino (FR)

A magnitude ML 1.8 earthquake occured in region: 3 km S Aquino (FR), on

  • 21-01-2022 01:43:51 (UTC)
  • 21-01-2022 02:43:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4650, 13.7100 at 9 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
Aquino FR 3 5370 5370
Pontecorvo FR 4 13242 18612
Piedimonte San Germano FR 5 6535 25147
Villa Santa Lucia FR 7 2632 27779
Pignataro Interamna FR 7 2595 30374
Castrocielo FR 8 3965 34339
San Giorgio a Liri FR 8 3164 37503
Esperia FR 9 3828 41331
Colle San Magno FR 10 699 42030
Castelnuovo Parano FR 10 883 42913
Roccasecca FR 10 7365 50278
Cassino FR 11 36142 86420
Terelle FR 12 422 86842
Sant'Apollinare FR 12 1919 88761
Pico FR 13 2888 91649
Ausonia FR 13 2619 94268
Colfelice FR 13 1932 96200
San Giovanni Incarico FR 13 3336 99536
Vallemaio FR 14 937 100473
Coreno Ausonio FR 14 1644 102117
Belmonte Castello FR 15 739 102856
Sant'Andrea del Garigliano FR 16 1505 104361
Sant'Elia Fiumerapido FR 16 6166 110527
Sant'Ambrogio sul Garigliano FR 16 966 111493
Falvaterra FR 16 554 112047
Cervaro FR 16 8109 120156
Santopadre FR 17 1357 121513
Campodimele LT 17 622 122135
Rocca d'Arce FR 17 959 123094
Rocca d'Evandro CE 17 3283 126377
Casalattico FR 18 574 126951
Spigno Saturnia LT 18 2961 129912
Arce FR 18 5756 135668
Pastena FR 18 1462 137130
Ceprano FR 18 8897 146027
Casalvieri FR 19 2698 148725
San Vittore del Lazio FR 19 2636 151361
Atina FR 19 4316 155677
Vallerotonda FR 20 1581 157258
Villa Latina FR 20 1241 158499

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km E of Latina (125985 inhabitants)
68 Km NW of Caserta (76326 inhabitants)
69 Km NW of Aversa (53047 inhabitants)
72 Km NW of Giugliano in Campania (122974 inhabitants)
75 Km NW of Marano di Napoli (59874 inhabitants)
76 Km NW of Pozzuoli (81661 inhabitants)
78 Km NW of Afragola (65057 inhabitants)
79 Km NW of Casoria (77642 inhabitants)
80 Km NW of Acerra (59573 inhabitants)
81 Km E of Velletri (53303 inhabitants)
83 Km NW of Napoli (974074 inhabitants)
89 Km NW of Portici (55274 inhabitants)
90 Km E of Aprilia (73446 inhabitants)
90 Km E of Anzio (54211 inhabitants)
90 Km NW of Ercolano (53709 inhabitants)
93 Km NW of Torre del Greco (86275 inhabitants)
94 Km SE of Tivoli (56533 inhabitants)
97 Km W of Benevento (60091 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 1.8 2022-01-21
01:43:51		 41.4652 13.7103 9 2022-07-08
12:33:29		 Bollettino Sismico Italiano INGV 100987781
Reviewed
Rev100 		ML 1.8 2022-01-21
01:43:50		 41.4595 13.6925 7 2022-01-21
01:49:10		 Sala Sismica INGV-Roma 100000831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-21 01:43:51 ± 0.11
Latitude 41.4652 ± 0.0072
Longitude 13.7103 ± 0.0060
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100987781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 216
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
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) 146
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91191
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 100987781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-15 09:10:11

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 100000831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-21 01:49:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHZ. 2022-01-21T01:45:08.70 3.0 undecidable manual Sn 0.92 0
IV.CRTC.HHZ. 2022-01-21T01:45:05.55 3.0 undecidable manual Sg 5.52 0
IV.MTCE.HHZ. 2022-01-21T01:44:21.37 0.3 undecidable manual S 308 101.2209 50 0.33 60
IV.CERT.HHZ. 2022-01-21T01:44:16.14 0.6 undecidable manual S 312 80.7636 50 0.56 39
IV.LPEL.HHZ. 2022-01-21T01:44:14.14 3.0 undecidable manual S -1.32 0
IV.PTQR.HHZ. 2022-01-21T01:44:12.36 0.6 undecidable manual S 338 66.8775 50 0.49 41
IV.LATB.EHZ. 2022-01-21T01:44:10.81 0.6 undecidable manual S 273 62.2932 50 0.17 45
IV.SGG.HHZ. 2022-01-21T01:44:09.55 0.6 undecidable manual S 99 56.2992 50 0.5 42
IV.GUAR.HHZ. 2022-01-21T01:44:07.56 0.6 undecidable manual S 318 49.2174 50 0.4 44
IV.MTCE.HHZ. 2022-01-21T01:44:07.89 0.6 undecidable manual P 308 101.2209 50 -0.47 39
IV.VVLD.HHZ. 2022-01-21T01:44:06.10 0.6 undecidable manual S 351 45.4212 50 -0.05 47
IV.PTRJ.HHZ. 2022-01-21T01:44:06.55 3.0 undecidable manual P 68.9754 3.15 0
IV.MIDA.HHZ. 2022-01-21T01:44:06.86 0.6 undecidable manual S 66 49.2174 50 -0.29 45
IV.CERT.HHZ. 2022-01-21T01:44:05.16 0.6 undecidable manual P 312 80.7636 50 -0.05 44
IV.GIUL.HHZ. 2022-01-21T01:44:04.14 0.6 undecidable manual S 285 39.2274 50 -0.35 45
IV.RCAV.EHZ. 2022-01-21T01:44:04.45 0.6 undecidable manual P 304 76.2681 50 -0.07 44
IV.PTQR.HHZ. 2022-01-21T01:44:02.67 0.1 undecidable manual P 338 66.8775 50 -0.4 84
IV.SGG.HHZ. 2022-01-21T01:44:02.19 0.3 undecidable manual P 99 56.2992 50 0.75 57
IV.POFI.HHZ. 2022-01-21T01:44:01.52 0.6 undecidable manual S 0 27.9498 107 0.3 46
IV.LATB.EHZ. 2022-01-21T01:44:01.75 0.3 undecidable manual P 273 62.2932 50 -0.61 60
IV.MIDA.HHZ. 2022-01-21T01:44:00.06 0.3 undecidable manual P 66 49.2174 50 -0.28 67
IV.GUAR.HHZ. 2022-01-21T01:44:00.56 0.3 undecidable manual P 318 49.2174 50 0.21 68
IV.PIGN.HHZ. 2022-01-21T01:44:00.09 0.6 undecidable manual P 127 48.9177 50 -0.22 45
IV.RNI2.HHZ. 2022-01-21T01:44:00.02 0.3 undecidable manual P 54 45.2214 50 0.29 67
IV.LRP.EHZ. 2022-01-21T01:43:59.56 0.6 undecidable manual S 333 22.6551 111 0.09 49
IV.VAGA.HHZ. 2022-01-21T01:43:59.90 0.3 undecidable manual P 97 43.9227 50 0.37 66
IV.VVLD.HHZ. 2022-01-21T01:43:59.17 0.1 negative manual P 351 45.4212 50 -0.6 83
IV.GIUL.HHZ. 2022-01-21T01:43:58.51 0.1 positive manual P 285 39.2274 50 -0.3 91
IV.LIK.EHN.01 2022-01-21T01:43:57.00 0.6 undecidable manual S 287 13.0758 124 0.48 46
IV.CERA.HHZ. 2022-01-21T01:43:57.14 0.3 undecidable manual P 60 29.4483 107 -0.07 73
IV.POFI.HHZ. 2022-01-21T01:43:56.66 0.3 undecidable manual P 0 27.9498 107 -0.26 70
IV.LRP.EHZ. 2022-01-21T01:43:55.77 0.3 negative manual P 333 22.6551 111 -0.14 72
IV.MCI.EHZ. 2022-01-21T01:43:55.28 0.6 undecidable manual S 71 8.9799 134 -0.12 50
IV.LIK.EHN.01 2022-01-21T01:43:54.51 0.1 undecidable manual P 287 13.0758 124 0.3 95
IV.MCI.EHZ. 2022-01-21T01:43:53.48 0.1 positive manual P 71 8.9799 134 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCI.EHE. ML:3.1 0.020050000000000002 0.98 AML other m 2022-01-21T01:43:56.69
IV.MCI.EHN. ML:3.0 0.0139 0.64 AML other m 2022-01-21T01:43:56.57
IV.LRP.EHE. ML:2.2 0.0010750000000000002 0.5 AML other m 2022-01-21T01:44:01.61
IV.LRP.EHN. ML:1.7 0.00036150000000000006 0.46 AML other m 2022-01-21T01:44:01.61
IV.POFI.HHE. ML:1.7 0.0002915 1.7 AML other m 2022-01-21T01:44:02.85
IV.POFI.HHN. ML:1.6 0.00022700000000000002 0.42 AML other m 2022-01-21T01:44:04.10
IV.CERA.HHE. ML:2.0 0.000518 0.88 AML other m 2022-01-21T01:44:04.81
IV.CERA.HNE. ML:2.0 0.000482 0.88 AML other m 2022-01-21T01:44:04.82
IV.CERA.HHN. ML:2.0 0.00047050000000000005 0.36 AML other m 2022-01-21T01:44:05.57
IV.CERA.HNN. ML:2.0 0.0004575 1.46 AML other m 2022-01-21T01:44:05.97
IV.GIUL.HHN. ML:1.8 0.0001995 0.16 AML other m 2022-01-21T01:44:07.07
IV.VVLD.HHN. ML:1.9 0.00023349999999999998 0.3 AML other m 2022-01-21T01:44:07.51
IV.GIUL.HHE. ML:1.7 0.000174 0.82 AML other m 2022-01-21T01:44:08.32
IV.MIDA.HHN. ML:1.6 0.0001075 0.82 AML other m 2022-01-21T01:44:10.82
IV.PIGN.HHE. ML:1.5 0.00008295 1.64 AML other m 2022-01-21T01:44:10.13
IV.GUAR.HHN. ML:2.1 0.00034899999999999997 0.24 AML other m 2022-01-21T01:44:11.31
IV.GUAR.HHE. ML:2.0 0.0002735 0.34 AML other m 2022-01-21T01:44:11.84
IV.GUAR.HNN. ML:2.2 0.0004125 1.22 AML other m 2022-01-21T01:44:11.31
IV.VVLD.HHE. ML:1.9 0.00022600000000000002 1.72 AML other m 2022-01-21T01:44:11.93
IV.VAGA.HHE. ML:1.7 0.00014000000000000001 0.42 AML other m 2022-01-21T01:44:12.71
IV.VAGA.HNE. ML:1.6 0.000114 0.62 AML other m 2022-01-21T01:44:12.71
IV.VAGA.HHN. ML:1.9 0.00023449999999999998 0.32 AML other m 2022-01-21T01:44:12.75
IV.VAGA.HNN. ML:1.9 0.000242 0.34 AML other m 2022-01-21T01:44:12.76
IV.MIDA.HHE. ML:1.6 0.00011155 1.46 AML other m 2022-01-21T01:44:13.24
IV.RNI2.HHE. ML:1.9 0.000226 0.42 AML other m 2022-01-21T01:44:14.54
IV.RNI2.HNE. ML:1.9 0.000235 0.4 AML other m 2022-01-21T01:44:14.34
IV.RNI2.HHN. ML:1.8 0.00018099999999999998 1.26 AML other m 2022-01-21T01:44:14.78
IV.RNI2.HNN. ML:1.8 0.0001735 1.24 AML other m 2022-01-21T01:44:14.78
IV.SGG.HHN. ML:1.6 0.0001014 0.42 AML other m 2022-01-21T01:44:15.33
IV.SGG.HHE. ML:1.8 0.0001225 0.46 AML other m 2022-01-21T01:44:15.38
IV.PTQR.HHN. ML:1.7 0.0000849 1.76 AML other m 2022-01-21T01:44:15.09
IV.PIGN.HHN. ML:1.5 0.00008165 0.42 AML other m 2022-01-21T01:44:16.38
IV.PTQR.HHE. ML:1.8 0.0000994 1.48 AML other m 2022-01-21T01:44:16.25
IV.GUAR.HNE. ML:2.0 0.000248 0.68 AML other m 2022-01-21T01:44:17.34
IV.RCAV.EHN. ML:2.0 0.00014350000000000002 0.18 AML other m 2022-01-21T01:44:17.18
IV.RCAV.EHE. ML:2.1 0.00016949999999999997 0.74 AML other m 2022-01-21T01:44:18.77
IV.LPEL.HHN. ML:1.6 0.00006405 0.54 AML other m 2022-01-21T01:44:18.57
IV.LPEL.HHE. ML:1.8 0.0000902 1.02 AML other m 2022-01-21T01:44:18.98
IV.MTCE.HHN. ML:1.7 0.000047550000000000004 0.94 AML other m 2022-01-21T01:44:27.75
IV.MTCE.HHE. ML:1.8 0.000054250000000000004 1.12 AML other m 2022-01-21T01:44:31.38
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