Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 02-10-2020 and time 14:15:47 (UTC) in region 3 km E Arpino (FR)

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

  • 02-10-2020 14:15:47 (UTC)
  • 02-10-2020 16:15:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6390, 13.6500 at 16 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
Arpino FR 3 7262 7262
Santopadre FR 4 1357 8619
Fontechiari FR 4 1303 9922
Casalvieri FR 5 2698 12620
Vicalvi FR 6 783 13403
Casalattico FR 7 574 13977
Posta Fibreno FR 7 1139 15116
Broccostella FR 7 2741 17857
Isola del Liri FR 8 11715 29572
Rocca d'Arce FR 8 959 30531
Arce FR 8 5756 36287
Fontana Liri FR 9 2953 39240
Castelliri FR 9 3454 42694
Alvito FR 10 2713 45407
Sora FR 10 26144 71551
Roccasecca FR 10 7365 78916
Colfelice FR 10 1932 80848
Colle San Magno FR 11 699 81547
Monte San Giovanni Campano FR 11 12929 94476
Campoli Appennino FR 11 1725 96201
Pescosolido FR 13 1555 97756
Castrocielo FR 13 3965 101721
Gallinaro FR 13 1269 102990
Atina FR 13 4316 107306
Strangolagalli FR 14 2491 109797
Terelle FR 14 422 110219
Boville Ernica FR 15 8737 118956
Ceprano FR 15 8897 127853
Belmonte Castello FR 15 739 128592
San Donato Val di Comino FR 16 2107 130699
Villa Latina FR 16 1241 131940
San Giovanni Incarico FR 17 3336 135276
Aquino FR 17 5370 140646
Settefrati FR 17 728 141374
Villa Santa Lucia FR 18 2632 144006
Piedimonte San Germano FR 18 6535 150541
Picinisco FR 18 1218 151759
Falvaterra FR 18 554 152313
Ripi FR 19 5270 157583
Balsorano AQ 20 3569 161152

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km E of Latina (125985 inhabitants)
73 Km E of Velletri (53303 inhabitants)
79 Km E of Tivoli (56533 inhabitants)
82 Km S of L'Aquila (69753 inhabitants)
83 Km E of Aprilia (73446 inhabitants)
85 Km NW of Caserta (76326 inhabitants)
86 Km E of Guidonia Montecelio (88673 inhabitants)
87 Km NW of Aversa (53047 inhabitants)
88 Km E of Anzio (54211 inhabitants)
90 Km SW of Chieti (51815 inhabitants)
91 Km NW of Giugliano in Campania (122974 inhabitants)
94 Km NW of Marano di Napoli (59874 inhabitants)
95 Km NW of Pozzuoli (81661 inhabitants)
95 Km E of Pomezia (62966 inhabitants)
97 Km NW of Afragola (65057 inhabitants)
97 Km NW of Casoria (77642 inhabitants)
98 Km NW of Acerra (59573 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 2020-10-02
14:15:47		 41.6387 13.6503 16 2021-02-26
14:56:16		 Bollettino Sismico Italiano INGV 86378941
Reviewed
Rev100 		ML 1.8 2020-10-02
14:15:47		 41.6398 13.6443 16 2020-10-02
14:30:08		 Sala Sismica INGV-Roma 83445021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-02 14:15:47 ± 0.09
Latitude 41.6387 ± 0.0036
Longitude 13.6503 ± 0.0036
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86378941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 439
Semi-minor axis of confidence ellipse (meter) 57
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60075
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 45
Type of magnitude ML
Reference to an origin 86378941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-19 13:32:35

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 83445021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-02 14:30:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2020-10-02T14:17:45.15 3.0 undecidable manual Sg 11.72 0
IV.IMOL.HNZ. 2020-10-02T14:17:15.46 3.0 undecidable manual Sn 2.16 0
IV.TDS.HHZ. 2020-10-02T14:17:14.21 3.0 undecidable manual Sg 5.79 0
IV.FIR.HHZ. 2020-10-02T14:17:09.69 3.0 undecidable manual Sg 3.31 0
AC.VLO.HHZ. 2020-10-02T14:16:57.23 3.0 undecidable manual Pn 0.29 0
IV.SERS.HHZ. 2020-10-02T14:16:51.91 3.0 undecidable manual Pg 9.74 0
IV.MCEL.HHZ. 2020-10-02T14:16:47.27 3.0 undecidable manual Sn -2.73 0
IV.PIPA.HHZ. 2020-10-02T14:16:42.73 3.0 negative manual Pg 4.09 0
IV.FOSV.EHZ. 2020-10-02T14:16:42.72 3.0 undecidable manual Sg 0.66 0
IV.CMPR.HHZ. 2020-10-02T14:16:21.95 3.0 undecidable manual Pg 2.68 0
IV.MURB.HNZ. 2020-10-02T14:16:19.13 3.0 undecidable manual Pn -0.01 0
IV.GAVE.EHZ. 2020-10-02T14:16:08.73 3.0 negative manual P -1.76 0
IT.LRNO.HNZ. 2020-10-02T14:16:07.05 3.0 negative manual P 0.02 0
IV.LATB.EHZ. 2020-10-02T14:16:06.20 0.3 undecidable manual S 255 59.2962 96 0.04 69
IV.RM33.HNZ. 2020-10-02T14:16:05.55 3.0 undecidable manual P -0.85 0
IV.MIDA.HHZ. 2020-10-02T14:16:04.00 0.3 undecidable manual S 89 50.0166 97 0.3 66
IV.INTR.HHZ. 2020-10-02T14:16:03.20 0.3 undecidable manual S 27 46.4202 98 0.46 65
IV.PTQR.HHZ. 2020-10-02T14:16:03.10 0.3 undecidable manual S 334 47.2194 98 0.13 70
IV.VCRE.HHZ. 2020-10-02T14:16:03.77 3.0 positive manual P -4.43 0
IV.T0110.HHZ. 2020-10-02T14:16:00.08 3.0 negative manual P -0.07 0
IV.SGG.HHZ. 2020-10-02T14:16:00.24 3.0 undecidable manual P 66.6777 0.7 0
IV.VCEL.EHZ. 2020-10-02T14:16:00.05 3.0 undecidable manual P -3.26 0
IV.CERA.HHZ. 2020-10-02T14:15:59.00 0.3 undecidable manual S 98 30.8469 105 0.34 68
IV.GIUL.HHZ. 2020-10-02T14:15:59.87 0.3 undecidable manual S 255 34.0437 103 0.38 67
IV.GUAR.HHZ. 2020-10-02T14:15:59.40 0.3 undecidable manual S 302 32.9448 103 0.2 70
IV.VAGA.HHZ. 2020-10-02T14:15:58.49 1.0 undecidable manual P 117 54.4011 97 0.83 18
IV.LATB.EHZ. 2020-10-02T14:15:57.86 0.3 undecidable manual P 255 59.2962 96 -0.55 61
IV.VVLD.HHZ. 2020-10-02T14:15:57.10 0.3 undecidable manual S 355 25.752 109 -0.25 69
IV.PTQR.HHZ. 2020-10-02T14:15:56.34 0.1 undecidable manual P 334 47.2194 98 -0.22 89
IT.OPI.HGZ. 2020-10-02T14:15:56.20 0.3 undecidable manual S 44 21.3675 115 -0.07 73
IV.RNI2.HHZ. 2020-10-02T14:15:56.15 0.1 undecidable manual P 80 42.2244 99 0.36 88
IV.MIDA.HHZ. 2020-10-02T14:15:56.62 0.3 undecidable manual P 89 50.0166 97 -0.36 65
IV.INTR.HHZ. 2020-10-02T14:15:56.23 0.3 undecidable manual P 27 46.4202 98 -0.2 68
IV.MCI.EHZ. 2020-10-02T14:15:55.90 0.3 undecidable manual S 140 21.2676 115 -0.34 70
IV.LIK.EHZ.01 2020-10-02T14:15:55.50 0.3 undecidable manual S 206 17.1717 122 0.21 71
IV.GIUL.HHZ. 2020-10-02T14:15:54.55 0.1 positive manual P 255 34.0437 103 0 96
IV.GUAR.HHZ. 2020-10-02T14:15:54.34 0.1 positive manual P 302 32.9448 103 -0.04 95
IV.LRP.EHZ. 2020-10-02T14:15:53.10 0.3 undecidable manual S 280 5.3946 158 -0.12 75
IV.VVLD.HHZ. 2020-10-02T14:15:53.23 0.1 positive manual P 355 25.752 109 -0.09 96
IV.POFI.HHZ. 2020-10-02T14:15:53.80 0.3 undecidable manual S 30 10.0788 141 -0.07 75
IV.CERA.HHZ. 2020-10-02T14:15:53.90 0.1 positive manual P 98 30.8469 105 -0.18 94
IV.MCI.EHZ. 2020-10-02T14:15:52.44 0.1 undecidable manual P 140 21.2676 115 -0.23 95
IT.OPI.HGZ. 2020-10-02T14:15:52.69 0.3 undecidable manual P 44 21.3675 115 0 74
IV.LIK.EHZ.01 2020-10-02T14:15:52.17 0.1 undecidable manual P 206 17.1717 122 0.05 98
IV.POFI.HHZ. 2020-10-02T14:15:51.41 0.1 negative manual P 30 10.0788 141 0.1 99
IV.LRP.EHZ. 2020-10-02T14:15:50.99 0.1 positive manual P 280 5.3946 158 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LRP.EHE. ML:2.4 0.0024948734999999996 0.224 AML other m 2020-10-02T14:15:53.22
IV.LRP.EHN. ML:1.9 0.00093123505 0.0768 AML other m 2020-10-02T14:15:53.86
IV.POFI.HHE. ML:1.9 0.0007313749 1.744 AML other m 2020-10-02T14:15:53.98
IV.POFI.HNE. ML:2.0 0.0008475724499999999 1.7504 AML other m 2020-10-02T14:15:53.99
IV.POFI.HHN. ML:1.7 0.00047183295000000004 1.8016 AML other m 2020-10-02T14:15:54.98
IV.POFI.HNN. ML:1.8 0.00055192085 1.7824 AML other m 2020-10-02T14:15:54.09
IV.VVLD.HNN. ML:2.1 0.0006114423 0.2816 AML other m 2020-10-02T14:15:57.63
IV.VVLD.HHN. ML:2.1 0.0006796385 0.2816 AML other m 2020-10-02T14:15:57.63
IV.MCI.EHN. ML:2.4 0.0017310249999999998 0.1856 AML other m 2020-10-02T14:15:58.40
IV.MCI.EHE. ML:2.5 0.0020260335 0.1792 AML other m 2020-10-02T14:15:58.41
IV.VVLD.HHE. ML:2.0 0.00048478854999999996 0.1408 AML other m 2020-10-02T14:15:59.09
IV.VVLD.HNE. ML:2.0 0.0004653666 0.16 AML other m 2020-10-02T14:15:59.08
IV.CERA.HHE. ML:2.3 0.00086691115 0.4032 AML other m 2020-10-02T14:16:00.33
IV.CERA.HNE. ML:2.3 0.0008330156 0.4224 AML other m 2020-10-02T14:16:00.33
IV.GUAR.HHE. ML:1.8 0.0002594584 0.1792 AML other m 2020-10-02T14:16:00.67
IV.GUAR.HHN. ML:2.1 0.0004838628 0.3392 AML other m 2020-10-02T14:16:00.77
IV.CERA.HHN. ML:2.0 0.0004062641 1.68 AML other m 2020-10-02T14:16:02.98
IV.CERA.HNN. ML:2.0 0.00038990400000000005 1.6992 AML other m 2020-10-02T14:16:02.99
IV.PTQR.HHE. ML:2.0 0.00025888165 0.2624 AML other m 2020-10-02T14:16:03.63
IV.INTR.HHN. ML:1.8 0.000171706145 0.2624 AML other m 2020-10-02T14:16:03.79
IV.INTR.HNN. ML:1.7 0.00012960593 0.2304 AML other m 2020-10-02T14:16:03.80
IV.INTR.HHE. ML:1.7 0.000129029975 1.7952 AML other m 2020-10-02T14:16:03.98
IV.INTR.HNE. ML:1.7 0.00012668146 1.8144 AML other m 2020-10-02T14:16:03.08
IV.PTQR.HHN. ML:1.8 0.0001822496 0.16 AML other m 2020-10-02T14:16:04.11
IV.RNI2.HNN. ML:1.7 0.00014221295 0.4416 AML other m 2020-10-02T14:16:04.62
IV.RNI2.HHN. ML:1.6 0.000136207 0.2048 AML other m 2020-10-02T14:16:04.89
IV.MIDA.HHE. ML:1.6 0.0001066583 0.16 AML other m 2020-10-02T14:16:05.86
IV.RNI2.HHE. ML:1.8 0.00020423415 0.384 AML other m 2020-10-02T14:16:06.92
IV.RNI2.HNE. ML:1.8 0.00019005275000000003 0.3584 AML other m 2020-10-02T14:16:06.92
IV.MIDA.HHN. ML:1.6 0.00009944968 1.7632 AML other m 2020-10-02T14:16:07.08
IV.LATB.EHE. ML:1.2 0.00003340407 0.2624 AML other m 2020-10-02T14:16:09.77
IV.VAGA.HNN. ML:1.8 0.000129535 0.4992 AML other m 2020-10-02T14:16:10.38
IV.MIDA.HNE. ML:1.5 0.00008055032500000001 0.2368 AML other m 2020-10-02T14:16:08.08
IV.VAGA.HHE. ML:1.5 0.000075236405 0.2816 AML other m 2020-10-02T14:16:11.85
IV.VAGA.HNE. ML:1.5 0.00006845625500000001 0.2816 AML other m 2020-10-02T14:16:11.85
IV.SGG.HHN. ML:1.6 0.00007136184 0.4224 AML other m 2020-10-02T14:16:13.41
IV.VAGA.HHN. ML:1.8 0.00013143945 1.7248 AML other m 2020-10-02T14:16:13.09
IV.T0110.HHE. ML:1.9 0.00015203545 0.4416 AML other m 2020-10-02T14:16:14.76
IV.SGG.HHE. ML:1.6 0.0000758032 0.6208 AML other m 2020-10-02T14:16:15.04
IV.T0110.HHN. ML:2.0 0.00016451615 1.5008 AML other m 2020-10-02T14:16:16.78
IV.VCRE.HHN. ML:2.8 0.0005317298500000001 0.2368 AML other m 2020-10-02T14:16:13.25
IV.RM33.EHE. ML:1.8 0.000059676175 0.4544 AML other m 2020-10-02T14:16:30.75
IV.RM33.EHN. ML:1.6 0.00003485473 0.48 AML other m 2020-10-02T14:16:24.85
IV.GAVE.EHN. ML:1.8 0.000037827629 0.5184 AML other m 2020-10-02T14:16:39.59
IV.GAVE.EHE. ML:1.8 0.00003879668 0.4416 AML other m 2020-10-02T14:16:37.50
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