Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 20-07-2020 and time 01:27:34 (Italy) in region 2 km SW Viticuso (FR)

A magnitude ML 1.6 earthquake occured in region: 2 km SW Viticuso (FR), on

  • 19-07-2020 23:27:34 (UTC)
  • 20-07-2020 01:27:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.5120, 13.9620 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
Viticuso FR 2 353 353
Acquafondata FR 4 263 616
Conca Casale IS 4 200 816
San Vittore del Lazio FR 6 2636 3452
Cervaro FR 6 8109 11561
Vallerotonda FR 6 1581 13142
San Pietro Infine CE 7 944 14086
Venafro IS 8 11280 25366
Pozzilli IS 8 2380 27746
Sant'Elia Fiumerapido FR 9 6166 33912
Filignano IS 9 648 34560
Cassino FR 11 36142 70702
San Biagio Saracinisco FR 12 349 71051
Mignano Monte Lungo CE 12 3250 74301
Rocca d'Evandro CE 14 3283 77584
Sesto Campano IS 14 2388 79972
Scapoli IS 14 680 80652
Montaquila IS 14 2456 83108
Belmonte Castello FR 15 739 83847
Villa Latina FR 15 1241 85088
Colli a Volturno IS 15 1349 86437
Sant'Ambrogio sul Garigliano FR 16 966 87403
Terelle FR 16 422 87825
Villa Santa Lucia FR 16 2632 90457
Capriati a Volturno CE 16 1541 91998
Rocchetta a Volturno IS 16 1113 93111
Sant'Apollinare FR 16 1919 95030
Pignataro Interamna FR 17 2595 97625
Picinisco FR 17 1218 98843
Piedimonte San Germano FR 18 6535 105378
Presenzano CE 18 1766 107144
Ciorlano CE 18 426 107570
Monteroduni IS 18 2264 109834
Atina FR 18 4316 114150
Castel San Vincenzo IS 18 516 114666
Macchia d'Isernia IS 18 1035 115701
Fornelli IS 18 1909 117610
Pizzone IS 18 329 117939
Galluccio CE 19 2154 120093
Sant'Andrea del Garigliano FR 19 1505 121598
Fontegreca CE 20 811 122409
Cerro al Volturno IS 20 1281 123690
Tora e Piccilli CE 20 910 124600
San Giorgio a Liri FR 20 3164 127764
Settefrati FR 20 728 128492

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km NW of Caserta (76326 inhabitants)
63 Km NW of Aversa (53047 inhabitants)
68 Km N of Giugliano in Campania (122974 inhabitants)
71 Km N of Marano di Napoli (59874 inhabitants)
72 Km NW of Acerra (59573 inhabitants)
72 Km NW of Afragola (65057 inhabitants)
73 Km NW of Casoria (77642 inhabitants)
75 Km N of Pozzuoli (81661 inhabitants)
79 Km NW of Napoli (974074 inhabitants)
81 Km NW of Benevento (60091 inhabitants)
83 Km NW of Portici (55274 inhabitants)
84 Km NW of Ercolano (53709 inhabitants)
87 Km NW of Torre del Greco (86275 inhabitants)
88 Km E of Latina (125985 inhabitants)
95 Km S of Chieti (51815 inhabitants)
96 Km NW of Avellino (54857 inhabitants)
97 Km NW of Scafati (50787 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 1.6 2020-07-19
23:27:34		 41.5123 13.9617 8 2020-11-19
12:36:54		 Bollettino Sismico Italiano INGV 81282591
Reviewed
Rev100 		ML 1.6 2020-07-19
23:27:34		 41.522 13.9842 11 2020-07-19
23:34:58		 Sala Sismica INGV-Roma 81170571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-19 23:27:34 ± 0.13
Latitude 41.5123 ± 0.0072
Longitude 13.9617 ± 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 81282591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 927
Semi-minor axis of confidence ellipse (meter) 310
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.09533
Epicentral distance of station farthest from the epicenter (degree) 0.73025
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 81282591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-23 17:00:25

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 81170571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-19 23:34:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2020-07-19T23:27:59.94 0.3 undecidable manual S 349 81.0522 50 0.67 54
IV.INTR.HHZ. 2020-07-19T23:27:52.77 0.3 undecidable manual S 355 55.5999 50 0.29 64
IV.VVLD.HHZ. 2020-07-19T23:27:50.29 0.3 undecidable manual S 325 48.5181 50 -0.32 67
IV.T0110.HHZ. 2020-07-19T23:27:48.44 0.1 undecidable manual P 349 81.0522 50 -0.37 82
IV.SGG.HHZ. 2020-07-19T23:27:48.17 0.6 undecidable manual S 112 37.4292 50 0.54 41
IV.LRP.EHN. 2020-07-19T23:27:47.43 0.3 undecidable manual S 296 34.5432 103 0.61 62
IV.VITU.HHZ. 2020-07-19T23:27:46.87 0.1 undecidable manual P 123 66.5778 50 0.28 85
IV.POFI.HHZ. 2020-07-19T23:27:45.95 0.3 undecidable manual S 318 30.747 105 0.4 67
IT.OPI.HGE. 2020-07-19T23:27:45.18 0.3 undecidable manual S 340 31.2465 104 -0.53 63
IV.RNI2.HHZ. 2020-07-19T23:27:44.72 0.3 undecidable manual S 37 26.4513 107 0.61 63
IV.INTR.HHZ. 2020-07-19T23:27:44.44 0.1 undecidable manual P 355 55.5999 50 -0.45 85
IV.VAGA.HHZ. 2020-07-19T23:27:43.65 0.6 undecidable manual S 115 25.0527 108 0 48
IV.VVLD.HHZ. 2020-07-19T23:27:43.41 0.1 undecidable manual P 325 48.5181 50 -0.4 87
IV.PIGN.HHZ. 2020-07-19T23:27:42.46 0.1 undecidable manual P 152 39.1275 50 0.11 93
IV.LRP.EHN. 2020-07-19T23:27:41.67 0.1 undecidable manual P 296 34.5432 103 0.05 95
IV.LIK.EHN.01 2020-07-19T23:27:41.88 0.6 undecidable manual P 268 33.4443 104 0.48 44
IV.SGG.HHZ. 2020-07-19T23:27:41.85 0.1 undecidable manual P 112 37.4292 50 -0.24 92
IT.OPI.HGE. 2020-07-19T23:27:40.68 0.1 undecidable manual P 340 31.2465 104 -0.3 90
IV.POFI.HHZ. 2020-07-19T23:27:40.87 0.1 undecidable manual P 318 30.747 105 -0.02 96
IV.CERA.HHZ. 2020-07-19T23:27:39.82 0.3 undecidable manual S 26 10.5783 127 0.69 64
IV.VAGA.HHZ. 2020-07-19T23:27:39.74 0.1 undecidable manual P 115 25.0527 108 -0.05 96
IV.RNI2.HHZ. 2020-07-19T23:27:39.91 0.1 undecidable manual P 37 26.4513 107 -0.15 94
IV.MIDA.HHZ. 2020-07-19T23:27:39.66 0.1 undecidable manual P 59 28.2495 106 -0.74 79
IV.CERA.HHZ. 2020-07-19T23:27:37.23 0.1 undecidable manual P 26 10.5783 127 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHE. ML:2.2 0.00248 1.42 AML other m 2020-07-19T23:27:40.71
IV.CERA.HNE. ML:2.2 0.0023799999999999997 0.28 AML other m 2020-07-19T23:27:41.56
IV.CERA.HNN. ML:2.2 0.002 0.5 AML other m 2020-07-19T23:27:41.47
IV.CERA.HHN. ML:2.2 0.0021349999999999997 0.52 AML other m 2020-07-19T23:27:41.46
IV.VAGA.HNN. ML:1.8 0.00042600000000000005 0.32 AML other m 2020-07-19T23:27:45.80
IV.VAGA.HHN. ML:1.9 0.00045599999999999997 0.32 AML other m 2020-07-19T23:27:45.80
IV.RNI2.HHN. ML:1.5 0.00017549999999999998 1.2 AML other m 2020-07-19T23:27:46.02
IV.RNI2.HNN. ML:1.5 0.0001675 0.76 AML other m 2020-07-19T23:27:46.02
IV.MIDA.HHN. ML:1.4 0.00014500000000000003 0.2 AML other m 2020-07-19T23:27:46.43
IV.VAGA.HHE. ML:1.6 0.000217 0.54 AML other m 2020-07-19T23:27:46.22
IV.VAGA.HNE. ML:1.6 0.0002165 0.56 AML other m 2020-07-19T23:27:46.22
IV.MIDA.HHE. ML:1.3 0.0001125 0.28 AML other m 2020-07-19T23:27:46.91
IV.POFI.HHN. ML:1.2 0.00006934999999999999 0.2 AML other m 2020-07-19T23:27:47.61
IV.POFI.HHE. ML:1.2 0.0000722 0.96 AML other m 2020-07-19T23:27:48.88
IV.RNI2.HHE. ML:1.7 0.0002595 1.24 AML other m 2020-07-19T23:27:50.31
IV.RNI2.HNE. ML:1.7 0.00027100000000000003 1.24 AML other m 2020-07-19T23:27:50.31
IV.SGG.HHN. ML:1.4 0.0000918 0.36 AML other m 2020-07-19T23:27:50.54
IV.SGG.HHE. ML:1.5 0.00012395 0.64 AML other m 2020-07-19T23:27:51.58
IV.VVLD.HHN. ML:1.4 0.00007395000000000001 0.2 AML other m 2020-07-19T23:27:53.00
IV.VVLD.HHE. ML:1.5 0.00008199999999999999 0.62 AML other m 2020-07-19T23:27:53.56
IV.PIGN.HHN. ML:1.0 0.00004155 0.74 AML other m 2020-07-19T23:27:53.95
IV.INTR.HHN. ML:1.8 0.00014450000000000002 0.62 AML other m 2020-07-19T23:27:54.21
IV.INTR.HHE. ML:1.7 0.00011675 0.92 AML other m 2020-07-19T23:27:55.76
IV.PIGN.HHE. ML:1.0 0.0000369 0.68 AML other m 2020-07-19T23:27:55.53
IV.T0110.HHN. ML:1.7 0.0000729 1 AML other m 2020-07-19T23:28:03.52
IV.VITU.HHN. ML:1.4 0.0000455 0.42 AML other m 2020-07-19T23:28:03.81
IV.T0110.HHE. ML:1.8 0.0000917 0.34 AML other m 2020-07-19T23:28:04.52
IV.VITU.HHE. ML:1.4 0.000044999999999999996 0.78 AML other m 2020-07-19T23:28:05.70
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