Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 19-08-2021 and time 00:26:51 (Italy) in region Caianello (CE)

A magnitude ML 1.9 earthquake occured in region: Caianello (CE), on

  • 18-08-2021 22:26:51 (UTC)
  • 19-08-2021 00:26:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.3060, 14.0740 at 4 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
Caianello CE 0 1824 1824
Marzano Appio CE 3 2226 4050
Tora e Piccilli CE 6 910 4960
Vairano Patenora CE 6 6594 11554
Teano CE 6 12577 24131
Conca della Campania CE 7 1239 25370
Pietravairano CE 8 2984 28354
Riardo CE 8 2321 30675
Presenzano CE 8 1766 32441
Roccamonfina CE 8 3511 35952
Pietramelara CE 10 4722 40674
Rocchetta e Croce CE 10 460 41134
Galluccio CE 11 2154 43288
Calvi Risorta CE 11 5707 48995
Sparanise CE 13 7429 56424
Sesto Campano IS 13 2388 58812
Roccaromana CE 13 856 59668
Francolise CE 13 4922 64590
Mignano Monte Lungo CE 13 3250 67840
Sessa Aurunca CE 14 21727 89567
Pratella CE 14 1565 91132
Ailano CE 15 1369 92501
Baia e Latina CE 15 2197 94698
Giano Vetusto CE 15 647 95345
Carinola CE 15 7283 102628
Pignataro Maggiore CE 15 6084 108712
Raviscanina CE 16 1319 110031
Sant'Angelo d'Alife CE 17 2270 112301
Formicola CE 17 1488 113789
Pastorano CE 17 3033 116822
Ciorlano CE 18 426 117248
Rocca d'Evandro CE 18 3283 120531
Camigliano CE 18 1943 122474
Prata Sannita CE 18 1502 123976
San Pietro Infine CE 18 944 124920
Falciano del Massico CE 19 3695 128615
Capriati a Volturno CE 19 1541 130156
Fontegreca CE 19 811 130967
Pontelatone CE 19 1703 132670
Sant'Ambrogio sul Garigliano FR 20 966 133636
Liberi CE 20 1153 134789
Vitulazio CE 20 7420 142209

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Caserta (76326 inhabitants)
39 Km N of Aversa (53047 inhabitants)
43 Km N of Giugliano in Campania (122974 inhabitants)
46 Km N of Marano di Napoli (59874 inhabitants)
47 Km NW of Afragola (65057 inhabitants)
47 Km NW of Acerra (59573 inhabitants)
48 Km NW of Casoria (77642 inhabitants)
51 Km N of Pozzuoli (81661 inhabitants)
54 Km N of Napoli (974074 inhabitants)
59 Km NW of Portici (55274 inhabitants)
60 Km NW of Ercolano (53709 inhabitants)
62 Km W of Benevento (60091 inhabitants)
63 Km NW of Torre del Greco (86275 inhabitants)
73 Km NW of Scafati (50787 inhabitants)
75 Km NW of Avellino (54857 inhabitants)
76 Km NW of Castellammare di Stabia (66466 inhabitants)
86 Km NW of Cava de' Tirreni (53659 inhabitants)
90 Km NW of Salerno (135261 inhabitants)
99 Km E of Latina (125985 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 1.9 2021-08-18
22:26:51		 41.3062 14.0738 5 2021-12-29
11:12:21		 Bollettino Sismico Italiano INGV 94412631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-18 22:26:51 ± 0.09
Latitude 41.3062 ± 0.0045
Longitude 14.0738 ± 0.0084
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 94412631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 521
Semi-minor axis of confidence ellipse (meter) 510
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 30
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) 0.85436
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 26
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 94412631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-08 09:05:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHZ. 2021-08-18T22:28:21.64 3.0 negative manual Pg 14.55 0
IV.MCIV.CHZ. 2021-08-18T22:28:06.55 3.0 undecidable manual Sg 5.56 0
AC.VLO.HHZ. 2021-08-18T22:27:49.56 3.0 undecidable manual Pn 2.44 0
IV.RSM2.HHZ. 2021-08-18T22:27:46.11 3.0 undecidable manual Pg 9.37 0
IV.CPGN.EHZ. 2021-08-18T22:27:39.88 3.0 undecidable manual Pn 4.4 0
IV.RIBO.EHZ.01 2021-08-18T22:27:29.78 3.0 undecidable manual Pn -3.55 0
IV.MNTT.EHZ. 2021-08-18T22:27:26.39 3.0 positive manual Pg 4.34 0
IV.TOLF.HHZ. 2021-08-18T22:27:18.23 3.0 undecidable manual Pn 0.18 0
IV.LATB.EHZ. 2021-08-18T22:27:08.00 0.6 undecidable manual P 283 94.8384 50 -0.66 37
IX.PGN3.HHZ.02 2021-08-18T22:27:07.96 3.0 negative manual P -0.52 0
IV.VENT.EHE. 2021-08-18T22:27:06.34 0.3 undecidable manual P 224 78.6657 50 0.16 66
IV.GIUL.HHZ. 2021-08-18T22:27:05.39 0.6 undecidable manual P 293 73.6707 50 -0.01 46
IV.ICAI.EHN. 2021-08-18T22:27:04.37 0.1 undecidable manual P 188 64.3911 50 0.39 86
IV.IFOR.HHN. 2021-08-18T22:27:04.14 1.0 undecidable manual P 196 68.4759 50 -0.46 21
IV.VTIR.HHZ. 2021-08-18T22:27:04.21 0.3 undecidable manual P 152 62.7927 50 0.49 64
IV.VVDG.HHE. 2021-08-18T22:27:03.66 0.6 undecidable manual P 151 59.7957 50 0.38 44
IV.VCRE.HHZ. 2021-08-18T22:27:03.95 0.1 undecidable manual P 151 61.7937 50 0.38 87
IV.OVO.HHZ. 2021-08-18T22:27:03.27 0.6 undecidable manual P 153 59.5959 50 0.04 47
IV.CERA.HHZ. 2021-08-18T22:27:03.49 0.3 undecidable manual S 352 32.6451 98 0.25 71
IV.VBKN.HHN. 2021-08-18T22:27:03.60 0.3 undecidable manual P 150 60.5949 50 0.2 68
IV.ICVJ.EHN. 2021-08-18T22:27:03.89 0.6 undecidable manual P 194 64.1913 50 -0.05 46
IV.CRTO.HHE. 2021-08-18T22:27:03.83 0.6 undecidable manual P 151 61.1943 50 0.34 44
IV.LRP.EHZ. 2021-08-18T22:27:02.40 0.3 undecidable manual P 313 55.4001 50 -0.2 69
IV.CSOB.HNZ. 2021-08-18T22:27:02.45 0.6 undecidable manual P 174 53.502 50 0.15 46
IV.MCI.EHZ. 2021-08-18T22:27:02.34 0.3 undecidable manual S 313 29.8479 99 0.07 74
IV.TST01.HHZ. 2021-08-18T22:27:02.41 0.1 undecidable manual P 28 55.5999 50 -0.21 91
IV.CBAC.EHE. 2021-08-18T22:27:02.60 0.1 undecidable manual P 179 55.1004 50 0.06 94
IV.POFI.HNE. 2021-08-18T22:27:02.31 0.6 undecidable manual P 327 54.6009 50 -0.16 46
IV.BSSO.HHE. 2021-08-18T22:27:01.36 0.3 undecidable manual P 58 50.8158 50 -0.52 64
IV.PAOL.HHN. 2021-08-18T22:27:00.59 0.3 undecidable manual P 126 51.3153 50 -1.36 44
IV.RNI2.HNE. 2021-08-18T22:27:00.82 0.3 undecidable manual P 8 44.5221 96 0.05 72
IX.SNR3.EHZ.02 2021-08-18T22:27:00.67 3.0 undecidable manual P -0.32 0
IV.PTRJ.HNN. 2021-08-18T22:26:59.64 0.6 undecidable manual P 80 38.4282 97 0.09 48
IV.MIDA.HNZ. 2021-08-18T22:26:59.83 0.6 undecidable manual P 22 40.1265 96 -0.06 48
IV.VAGA.HHZ. 2021-08-18T22:26:58.76 0.3 undecidable manual S 48 18.0708 104 0.51 68
IV.CERA.HHZ. 2021-08-18T22:26:58.67 0.3 undecidable manual P 352 32.6451 98 0.26 70
IV.MCI.EHZ. 2021-08-18T22:26:57.63 0.1 undecidable manual P 313 29.8479 99 -0.22 95
IV.PIGN.HHZ. 2021-08-18T22:26:56.69 0.3 undecidable manual S 143 14.7741 107 -0.46 70
IV.VAGA.HHZ. 2021-08-18T22:26:55.39 0.1 undecidable manual P 48 18.0708 104 -0.13 99
IV.PIGN.HHZ. 2021-08-18T22:26:54.77 0.1 negative manual P 143 14.7741 107 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIGN.HHE. ML:2.0 0.001093 0.86 AML other m 2021-08-18T22:26:58.91
IV.PIGN.HNE. ML:1.9 0.0009355 0.88 AML other m 2021-08-18T22:26:58.92
IV.PIGN.HNN. ML:1.9 0.0010025 0.68 AML other m 2021-08-18T22:26:58.77
IV.PIGN.HHN. ML:1.9 0.000907 0.68 AML other m 2021-08-18T22:26:58.77
IV.MCI.EHN. ML:2.1 0.0007055 1.16 AML other m 2021-08-18T22:27:06.85
IV.CERA.HNN. ML:2.2 0.000657 0.32 AML other m 2021-08-18T22:27:07.36
IV.CERA.HHN. ML:2.2 0.0006845 0.32 AML other m 2021-08-18T22:27:07.36
IV.MCI.EHE. ML:2.4 0.0012749999999999999 1.72 AML other m 2021-08-18T22:27:08.03
IV.LRP.EHN. ML:1.1 0.0000322 0.22 AML other m 2021-08-18T22:27:09.22
IV.CERA.HHE. ML:1.8 0.0002775 1.04 AML other m 2021-08-18T22:27:11.81
IV.CERA.HNE. ML:2.0 0.0005269999999999999 0.42 AML other m 2021-08-18T22:27:11.47
IV.LRP.EHE. ML:1.8 0.0001365 0.3 AML other m 2021-08-18T22:27:17.48
IV.GIUL.HHN. ML:1.6 0.00005955 1.12 AML other m 2021-08-18T22:27:18.83
IV.GIUL.HHE. ML:1.6 0.00005575 0.52 AML other m 2021-08-18T22:27:19.48
IX.SNR3.EHN.02 ML:1.8 0.00005300000000000001 0.72 AML other m 2021-08-18T22:27:33.58
IX.SNR3.EHE.02 ML:1.8 0.00005690000000000001 1.5 AML other m 2021-08-18T22:27:35.89
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