Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 20-03-2021 and time 04:30:15 (Italy) in region 2 km W Sesto Campano (IS)

A magnitude ML 2.0 earthquake occured in region: 2 km W Sesto Campano (IS), on

  • 20-03-2021 03:30:15 (UTC)
  • 20-03-2021 04:30:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4180, 14.0490 at 8 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
Sesto Campano IS 3 2388 2388
Presenzano CE 5 1766 4154
Mignano Monte Lungo CE 5 3250 7404
Venafro IS 8 11280 18684
San Pietro Infine CE 8 944 19628
Tora e Piccilli CE 9 910 20538
Conca Casale IS 9 200 20738
Ciorlano CE 10 426 21164
Capriati a Volturno CE 10 1541 22705
Pozzilli IS 11 2380 25085
Conca della Campania CE 11 1239 26324
San Vittore del Lazio FR 11 2636 28960
Pratella CE 11 1565 30525
Marzano Appio CE 11 2226 32751
Galluccio CE 11 2154 34905
Vairano Patenora CE 12 6594 41499
Fontegreca CE 12 811 42310
Caianello CE 13 1824 44134
Rocca d'Evandro CE 13 3283 47417
Prata Sannita CE 13 1502 48919
Ailano CE 13 1369 50288
Viticuso FR 14 353 50641
Cervaro FR 14 8109 58750
Pietravairano CE 14 2984 61734
Filignano IS 14 648 62382
Sant'Ambrogio sul Garigliano FR 15 966 63348
Roccamonfina CE 16 3511 66859
Gallo Matese CE 16 579 67438
Monteroduni IS 16 2264 69702
Acquafondata FR 16 263 69965
Raviscanina CE 17 1319 71284
Valle Agricola CE 17 890 72174
Letino CE 17 712 72886
Montaquila IS 18 2456 75342
Sant'Andrea del Garigliano FR 18 1505 76847
Sant'Apollinare FR 18 1919 78766
Teano CE 19 12577 91343
Sant'Angelo d'Alife CE 19 2270 93613
Riardo CE 19 2321 95934
Vallerotonda FR 19 1581 97515
Macchia d'Isernia IS 19 1035 98550

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Caserta (76326 inhabitants)
51 Km N of Aversa (53047 inhabitants)
56 Km N of Giugliano in Campania (122974 inhabitants)
59 Km N of Marano di Napoli (59874 inhabitants)
59 Km NW of Acerra (59573 inhabitants)
59 Km NW of Afragola (65057 inhabitants)
60 Km NW of Casoria (77642 inhabitants)
63 Km N of Pozzuoli (81661 inhabitants)
66 Km N of Napoli (974074 inhabitants)
69 Km W of Benevento (60091 inhabitants)
71 Km NW of Portici (55274 inhabitants)
72 Km NW of Ercolano (53709 inhabitants)
75 Km NW of Torre del Greco (86275 inhabitants)
84 Km NW of Avellino (54857 inhabitants)
84 Km NW of Scafati (50787 inhabitants)
88 Km NW of Castellammare di Stabia (66466 inhabitants)
96 Km E of Latina (125985 inhabitants)
97 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
Bulletin
Rev1000 		ML 2.0 2021-03-20
03:30:15		 41.4175 14.0493 8 2021-07-12
16:55:06		 Bollettino Sismico Italiano INGV 89265601
Reviewed
Rev100 		ML 2.0 2021-03-20
03:30:15		 41.4033 14.0473 8 2021-03-20
07:24:58		 Sala Sismica INGV-Roma 88304031
Reviewed
Rev100 		ML 2.2 2021-03-20
03:30:14		 41.3753 14.0382 30 2021-03-20
03:48:32		 Sala Sismica INGV-Roma 88298421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-20 03:30:15 ± 0.11
Latitude 41.4175 ± 0.0063
Longitude 14.0493 ± 0.0096
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89265601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 649
Semi-minor axis of confidence ellipse (meter) 639
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 65
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
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) 0.13850
Epicentral distance of station farthest from the epicenter (degree) 0.83637
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 41
Type of magnitude ML
Reference to an origin 89265601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-17 09:59:48

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 41
Type of magnitude ML
Reference to an origin 88304031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-20 07:24:58

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 88298421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-20 03:48:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHZ. 2021-03-20T03:30:36.25 1.0 undecidable manual S 350 66.9774 50 -0.23 22
IV.T0110.HHZ. 2021-03-20T03:30:31.08 0.1 undecidable manual P 346 92.8404 50 -0.45 81
IV.POFI.HHZ. 2021-03-20T03:30:30.61 0.6 undecidable manual S 320 43.5231 50 0.4 45
IV.CBAC.EHZ. 2021-03-20T03:30:29.04 0.3 undecidable manual P 178 67.4769 50 1.42 41
IV.CAAM.HHE. 2021-03-20T03:30:29.22 0.6 undecidable manual P 173 66.6777 50 1.72 23
IV.LPEL.HHN. 2021-03-20T03:30:28.49 0.6 undecidable manual P 9 70.6737 50 0.38 43
IV.GIUL.HHZ. 2021-03-20T03:30:28.04 0.3 undecidable manual P 284 67.8765 50 0.36 65
IV.INTR.HHZ. 2021-03-20T03:30:27.17 0.1 undecidable manual P 350 66.9774 50 -0.37 86
IV.TRIV.HNZ. 2021-03-20T03:30:26.11 0.3 undecidable manual P 47 56.7987 50 0.14 69
IV.MIDA.HHZ. 2021-03-20T03:30:26.56 1.0 undecidable manual S 34 30.1476 104 0.45 23
IV.VVLD.HHZ. 2021-03-20T03:30:26.00 0.1 undecidable manual P 325 61.3941 50 -0.68 79
IV.SGG.HNN. 2021-03-20T03:30:25.70 0.6 undecidable manual S 97 27.6501 105 0.43 46
IV.VITU.HHZ. 2021-03-20T03:30:25.49 0.3 undecidable manual P 118 54.9006 50 -0.2 69
IV.SACR.HNE. 2021-03-20T03:30:25.56 0.3 undecidable manual P 92 54.6009 50 -0.08 71
IV.TST01.HHE. 2021-03-20T03:30:24.45 0.3 undecidable manual P 37 46.2204 50 0.11 71
IV.LIK.EHE.01 2021-03-20T03:30:24.09 1.0 undecidable manual P 283 41.7249 50 0.44 22
IV.PIGN.HHZ. 2021-03-20T03:30:24.34 0.6 undecidable manual S 156 26.4513 106 -0.54 45
IV.BSSO.HHZ. 2021-03-20T03:30:24.52 0.1 undecidable manual P 72 47.4192 50 -0.01 97
IV.LRP.EHE. 2021-03-20T03:30:24.45 0.3 undecidable manual P 304 46.1205 50 0.12 71
IV.POFI.HHZ. 2021-03-20T03:30:23.45 0.1 undecidable manual P 320 43.5231 50 -0.47 88
IV.RNI2.HHN. 2021-03-20T03:30:22.19 0.3 undecidable manual P 15 32.8449 103 0.11 73
IV.CERA.HHZ. 2021-03-20T03:30:22.96 0.6 undecidable manual S 353 20.1687 110 0.16 49
IV.VAGA.HHZ. 2021-03-20T03:30:21.68 1.0 undecidable manual S 91 15.3735 116 0.41 24
IV.MIDA.HHZ. 2021-03-20T03:30:21.68 0.1 undecidable manual P 34 30.1476 104 0.12 97
IV.SGG.HNN. 2021-03-20T03:30:20.93 0.1 undecidable manual P 97 27.6501 105 -0.15 97
IV.PIGN.HHZ. 2021-03-20T03:30:20.33 0.1 undecidable manual P 156 26.4513 106 -0.52 90
IV.MCI.EHZ. 2021-03-20T03:30:20.03 0.1 undecidable manual P 293 21.2676 109 0.17 98
IV.CERA.HHZ. 2021-03-20T03:30:19.77 0.1 undecidable manual P 353 20.1687 110 0.12 99
IV.VAGA.HHZ. 2021-03-20T03:30:18.64 0.1 negative manual P 91 15.3735 116 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VAGA.HHN. ML:2.6 0.00393 1.7 AML other m 2021-03-20T03:30:25.01
IV.VAGA.HNN. ML:2.6 0.0038 1.7 AML other m 2021-03-20T03:30:25.02
IV.VAGA.HHE. ML:2.2 0.001653894 1.7008 AML other m 2021-03-20T03:30:25.87
IV.VAGA.HNE. ML:2.2 0.0015775429999999998 1.7008 AML other m 2021-03-20T03:30:25.87
IV.CERA.HHN. ML:2.3 0.0016400000000000002 1.44 AML other m 2021-03-20T03:30:26.99
IV.CERA.HNN. ML:2.3 0.0016099999999999999 1.42 AML other m 2021-03-20T03:30:26.99
IV.MCI.EHE. ML:2.6 0.002727601 0.3808 AML other m 2021-03-20T03:30:26.41
IV.MCI.EHN. ML:2.5 0.0022982180000000003 0.36 AML other m 2021-03-20T03:30:27.71
IV.PIGN.HHN. ML:1.9 0.0004425 0.48 AML other m 2021-03-20T03:30:28.69
IV.PIGN.HNN. ML:1.9 0.0005445 0.48 AML other m 2021-03-20T03:30:28.46
IV.PIGN.HHE. ML:1.9 0.00050081385 0.4208 AML other m 2021-03-20T03:30:30.25
IV.PIGN.HNE. ML:1.9 0.00049 0.42 AML other m 2021-03-20T03:30:30.26
IV.MIDA.HHN. ML:1.8 0.00029299999999999997 0.42 AML other m 2021-03-20T03:30:31.34
IV.MIDA.HNE. ML:1.8 0.000283 0.4 AML other m 2021-03-20T03:30:31.34
IV.CERA.HHE. ML:2.4 0.0017900000000000001 0.56 AML other m 2021-03-20T03:30:31.27
IV.CERA.HNE. ML:2.4 0.001777651 0.5408 AML other m 2021-03-20T03:30:31.55
IV.MIDA.HNN. ML:1.8 0.0003331431 0.4592 AML other m 2021-03-20T03:30:31.88
IV.MIDA.HHE. ML:1.8 0.0002814928 0.4192 AML other m 2021-03-20T03:30:31.88
IV.POFI.HHN. ML:1.5 0.00011011879499999999 0.4992 AML other m 2021-03-20T03:30:33.60
IV.POFI.HNN. ML:1.9 0.00022831675 0.76 AML other m 2021-03-20T03:30:34.12
IV.POFI.HNE. ML:1.9 0.00024620405 0.8208 AML other m 2021-03-20T03:30:37.44
IV.BSSO.HNN. ML:1.8 0.000179 0.78 AML other m 2021-03-20T03:30:39.34
IV.BSSO.HHN. ML:1.8 0.000189 0.8 AML other m 2021-03-20T03:30:39.73
IV.VITU.HHN. ML:2.2 0.00034649999999999997 1.5 AML other m 2021-03-20T03:30:40.00
IV.VITU.HHE. ML:2.3 0.000446 0.48 AML other m 2021-03-20T03:30:40.69
IV.VITU.HNN. ML:2.2 0.0004104091 0.3792 AML other m 2021-03-20T03:30:41.55
IV.VVLD.HHE. ML:1.9 0.000145 0.46 AML other m 2021-03-20T03:30:41.65
IV.VVLD.HNE. ML:1.9 0.00016526640000000001 0.4688 AML other m 2021-03-20T03:30:41.66
IV.VVLD.HNN. ML:1.9 0.00016783589999999998 0.5696 AML other m 2021-03-20T03:30:41.97
IV.VVLD.HHN. ML:1.9 0.000154 0.5 AML other m 2021-03-20T03:30:41.70
IV.POFI.HHE. ML:1.7 0.00015250000000000002 1.4 AML other m 2021-03-20T03:30:41.81
IV.INTR.HHE. ML:2.2 0.000249 1.32 AML other m 2021-03-20T03:30:41.22
IV.INTR.HNE. ML:2.2 0.0002585 0.74 AML other m 2021-03-20T03:30:42.21
IV.GIUL.HHN. ML:2.0 0.00017299999999999998 1.34 AML other m 2021-03-20T03:30:43.94
IV.GIUL.HHE. ML:1.8 0.00011185000000000001 0.84 AML other m 2021-03-20T03:30:45.60
IV.INTR.HHN. ML:2.0 0.0001905 0.58 AML other m 2021-03-20T03:30:46.08
IV.INTR.HNN. ML:2.2 0.000277 0.58 AML other m 2021-03-20T03:30:46.39
IV.T0110.HHE. ML:2.1 0.00014251075000000003 1.48 AML other m 2021-03-20T03:30:47.04
IV.BSSO.HHE. ML:1.8 0.00016764055 0.8384 AML other m 2021-03-20T03:30:48.98
IV.BSSO.HNE. ML:1.8 0.00017732789999999997 0.8384 AML other m 2021-03-20T03:30:48.98
IV.T0110.HHN. ML:2.1 0.000148 1.5 AML other m 2021-03-20T03:30:49.11
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