Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 20-12-2020 and time 19:42:56 (Italy) in region 2 km E Vicovaro (RM)

A magnitude ML 2.3 earthquake occured in region: 2 km E Vicovaro (RM), on

  • 20-12-2020 18:42:56 (UTC)
  • 20-12-2020 19:42:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0060, 12.9180 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Vicovaro RM 2 4019 4019
Sambuci RM 3 925 4944
Saracinesco RM 3 185 5129
Mandela RM 3 917 6046
Ciciliano RM 5 1336 7382
Castel Madama RM 5 7399 14781
Roccagiovine RM 5 263 15044
Anticoli Corrado RM 6 915 15959
Cineto Romano RM 6 601 16560
San Polo dei Cavalieri RM 6 2992 19552
Roviano RM 7 1351 20903
Licenza RM 8 1011 21914
Marano Equo RM 8 779 22693
Cerreto Laziale RM 9 1118 23811
Arsoli RM 9 1586 25397
Riofreddo RM 9 781 26178
Marcellina RM 9 7280 33458
Agosta RM 10 1765 35223
Percile RM 10 255 35478
Gerano RM 10 1263 36741
San Gregorio da Sassola RM 10 1619 38360
Rocca Canterano RM 10 196 38556
Tivoli RM 11 56533 95089
Vallinfreda RM 11 283 95372
Oricola AQ 11 1244 96616
Casape RM 11 744 97360
Pisoniano RM 11 770 98130
Canterano RM 12 351 98481
Cervara di Roma RM 13 455 98936
Rocca di Botte AQ 13 856 99792
Vivaro Romano RM 13 182 99974
Poli RM 13 2418 102392
Rocca Santo Stefano RM 14 975 103367
Monteflavio RM 14 1348 104715
Orvinio RI 14 405 105120
Palombara Sabina RM 14 13269 118389
San Vito Romano RM 15 3273 121662
Guidonia Montecelio RM 16 88673 210335
Camerata Nuova RM 16 447 210782
Capranica Prenestina RM 16 351 211133
Pereto AQ 16 682 211815
Bellegra RM 17 2887 214702
Turania RI 17 241 214943
Gallicano nel Lazio RM 17 6334 221277
Carsoli AQ 17 5396 226673
Sant'Angelo Romano RM 17 5018 231691
Moricone RM 17 2650 234341
Montorio Romano RM 17 1984 236325
Subiaco RM 18 9074 245399
Castel San Pietro Romano RM 18 902 246301
Pozzaglia Sabina RI 18 360 246661
Rocca di Cave RM 18 377 247038
Collalto Sabino RI 18 442 247480
Palestrina RM 19 21672 269152
Olevano Romano RM 19 6687 275839
Scandriglia RI 19 3108 278947
Roiate RM 19 737 279684
Zagarolo RM 20 17843 297527
Genazzano RM 20 6036 303563

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km E of Tivoli (56533 inhabitants)
16 Km E of Guidonia Montecelio (88673 inhabitants)
37 Km NE of Velletri (53303 inhabitants)
38 Km E of Roma (2864731 inhabitants)
51 Km NE of Pomezia (62966 inhabitants)
51 Km NE of Aprilia (73446 inhabitants)
55 Km SW of L'Aquila (69753 inhabitants)
60 Km N of Latina (125985 inhabitants)
62 Km E of Fiumicino (78395 inhabitants)
66 Km SE of Terni (111501 inhabitants)
66 Km NE of Anzio (54211 inhabitants)
81 Km SE of Viterbo (67173 inhabitants)
93 Km E of Civitavecchia (52991 inhabitants)
97 Km SW of Teramo (54892 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 2.3 2020-12-20
18:42:56		 42.0058 12.9183 9 2021-02-26
14:56:17		 Bollettino Sismico Italiano INGV 86773781
Reviewed
Rev100 		ML 2.3 2020-12-20
18:42:56		 42.0077 12.9192 9 2020-12-20
18:51:04		 Sala Sismica INGV-Roma 85584831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-20 18:42:56 ± 0.06
Latitude 42.0058 ± 0.0027
Longitude 12.9183 ± 0.0036
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86773781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 323
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 97
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 59
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.13220
Epicentral distance of station farthest from the epicenter (degree) 1.28963
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 62
Type of magnitude ML
Reference to an origin 85584831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-20 18:51:04

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 62
Type of magnitude ML
Reference to an origin 86773781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-16 10:55:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-12-20T18:43:20.93 0.6 undecidable manual P 347 143.1456 50 0.68 33
IV.BARO.HNZ. 2020-12-20T18:43:20.31 0.6 undecidable manual S 291 76.2681 50 0.56 40
IV.GAVE.EHZ. 2020-12-20T18:43:20.08 0.6 undecidable manual S 359 76.1682 50 0.35 43
IV.CESX.HHZ. 2020-12-20T18:43:19.92 0.6 undecidable manual S 338 72.1722 50 1.25 30
IV.LRP.EHZ. 2020-12-20T18:43:18.38 0.6 undecidable manual S 126 68.0763 50 0.81 37
IV.CSP1.EHZ. 2020-12-20T18:43:17.19 0.6 undecidable manual P 11 122.6883 50 0.08 41
IV.ARRO.EHZ. 2020-12-20T18:43:17.30 0.6 undecidable manual S 349 64.7907 50 0.59 41
IV.MGAB.HHZ. 2020-12-20T18:43:17.01 0.3 undecidable manual P 327 120.2907 50 0.28 59
IV.ASSB.HHZ. 2020-12-20T18:43:16.12 0.1 undecidable manual P 350 116.994 50 -0.1 83
IV.MF5.EHZ. 2020-12-20T18:43:16.54 0.3 undecidable manual P 22 117.5934 50 0.22 60
IV.VVLD.HHZ. 2020-12-20T18:43:15.28 0.3 undecidable manual S 104 60.0954 50 -0.17 68
IV.FDMO.HHZ. 2020-12-20T18:43:15.82 0.3 undecidable manual P 7 115.1958 50 -0.12 62
IV.CESI.HHZ. 2020-12-20T18:43:15.21 0.3 undecidable manual P 359 110.8002 50 -0.06 63
IV.GIUL.HHZ. 2020-12-20T18:43:14.70 0.6 undecidable manual S 151 56.8986 50 0.11 46
IV.MC2.EHZ. 2020-12-20T18:43:14.24 0.3 undecidable manual P 12 102.8193 50 0.2 63
IV.LATB.EHZ. 2020-12-20T18:43:14.40 0.3 undecidable manual S 176 56.8986 50 -0.19 68
IV.CERA.HHZ. 2020-12-20T18:43:13.49 0.3 undecidable manual P 116 101.6205 50 -0.36 61
IV.MOMA.HHZ. 2020-12-20T18:43:12.15 0.3 undecidable manual P 342 93.0402 50 -0.38 61
IV.MCI.EHZ. 2020-12-20T18:43:12.30 0.6 undecidable manual P 127 93.5397 50 -0.31 42
IV.SRES.HHZ. 2020-12-20T18:43:11.21 0.6 undecidable manual S 307 42.2244 50 0.53 43
IV.TOLF.HHZ. 2020-12-20T18:43:10.02 0.3 undecidable manual P 275 75.9684 50 0.13 67
IV.LAV9.HNZ. 2020-12-20T18:43:10.71 0.6 undecidable manual S 207 40.626 50 0.46 44
IV.INTR.HHZ. 2020-12-20T18:43:10.70 0.3 undecidable manual P 89 81.252 50 -0.02 68
IV.GUAR.HHZ. 2020-12-20T18:43:10.38 0.3 undecidable manual S 126 40.1265 50 0.28 69
IV.PTQR.HHZ. 2020-12-20T18:43:10.40 0.3 undecidable manual S 87 39.8268 50 0.37 68
IV.CESX.HHZ. 2020-12-20T18:43:09.20 0.3 undecidable manual P 338 72.1722 50 -0.11 68
IV.BARO.HNZ. 2020-12-20T18:43:09.58 0.3 undecidable manual P 291 76.2681 50 -0.36 64
IV.SAMA.EHZ. 2020-12-20T18:43:09.16 0.6 undecidable manual S 227 36.741 50 -0.05 49
IV.POFI.HHZ. 2020-12-20T18:43:09.15 0.1 undecidable manual P 116 72.9714 50 -0.29 87
IV.LIK.EHN.01 2020-12-20T18:43:09.86 0.6 undecidable manual P 136 77.2671 50 -0.24 43
IV.GAVE.EHZ. 2020-12-20T18:43:09.50 0.1 negative manual P 359 76.1682 50 -0.43 84
IV.T0110.HHZ. 2020-12-20T18:43:09.93 0.3 undecidable manual P 70 74.8695 50 0.2 66
IV.FIAM.HHZ. 2020-12-20T18:43:08.10 0.3 undecidable manual S 29 33.3444 50 -0.21 71
IV.LRP.EHZ. 2020-12-20T18:43:08.51 0.3 undecidable manual P 126 68.0763 50 -0.18 67
IV.LNSS.HHZ. 2020-12-20T18:43:08.07 0.1 negative manual P 9 66.9774 50 -0.44 85
IV.RDP.HHZ. 2020-12-20T18:43:07.97 0.3 undecidable manual S 212 32.2455 50 -0.03 74
IV.VIVA.HHZ. 2020-12-20T18:43:07.70 0.3 undecidable manual S 203 30.8469 50 0.06 74
IV.ARRO.EHZ. 2020-12-20T18:43:07.98 0.3 undecidable manual P 349 64.7907 50 -0.2 67
IV.VVLD.HHZ. 2020-12-20T18:43:07.24 0.1 positive manual P 104 60.0954 50 -0.21 90
IV.GIUL.HHZ. 2020-12-20T18:43:06.66 0.1 positive manual P 151 56.8986 50 -0.31 89
IV.LATB.EHZ. 2020-12-20T18:43:06.55 0.1 positive manual P 176 56.8986 50 -0.42 87
IT.MMP1.HGE. 2020-12-20T18:43:06.93 0.6 undecidable manual S 333 30.4473 50 -0.59 43
IV.RMP.HHZ. 2020-12-20T18:43:06.50 0.3 undecidable manual S 219 27.8499 108 -0.21 72
IV.LAV9.HNZ. 2020-12-20T18:43:05.16 1.0 undecidable manual P 207 40.626 50 0.7 20
IV.SRES.HHZ. 2020-12-20T18:43:04.29 0.1 positive manual P 307 42.2244 50 -0.42 89
IV.SAMA.EHZ. 2020-12-20T18:43:04.25 0.1 positive manual P 227 36.741 50 0.4 91
IV.PTQR.HHZ. 2020-12-20T18:43:04.33 0.1 positive manual P 87 39.8268 50 0 98
IV.GUAR.HHZ. 2020-12-20T18:43:04.21 0.1 positive manual P 126 40.1265 50 -0.16 95
IV.FIAM.HHZ. 2020-12-20T18:43:03.19 0.1 negative manual P 29 33.3444 50 -0.15 96
IV.RDP.HHZ. 2020-12-20T18:43:03.49 0.3 undecidable manual P 212 32.2455 50 0.34 69
IT.CSO1.HGZ. 2020-12-20T18:43:03.90 0.3 undecidable manual S 53 17.4714 118 0.49 69
IV.VIVA.HHZ. 2020-12-20T18:43:03.46 0.3 undecidable manual P 203 30.8469 50 0.51 67
IV.RCAV.EHZ. 2020-12-20T18:43:03.30 0.3 undecidable manual S 173 17.7711 118 -0.18 74
IV.MTCE.HHZ. 2020-12-20T18:43:02.30 0.3 undecidable manual S 277 14.6742 122 -0.25 73
IV.RMP.HHZ. 2020-12-20T18:43:02.52 0.3 undecidable manual P 219 27.8499 108 0.11 73
IT.MMP1.HGE. 2020-12-20T18:43:02.34 0.3 undecidable manual P 333 30.4473 50 -0.53 66
IV.RCAV.EHZ. 2020-12-20T18:43:00.86 0.1 undecidable manual P 173 17.7711 118 0.31 95
IV.MTCE.HHZ. 2020-12-20T18:43:00.12 0.1 positive manual P 277 14.6742 122 0.11 100
IT.CSO1.HGZ. 2020-12-20T18:43:00.96 0.3 undecidable manual P 53 17.4714 118 0.46 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHN. ML:2.3 0.002205 0.64 AML other m 2020-12-20T18:43:02.38
IV.MTCE.HHE. ML:2.4 0.0024100000000000002 0.24 AML other m 2020-12-20T18:43:03.02
IV.RCAV.EHN. ML:2.5 0.0024749999999999998 0.64 AML other m 2020-12-20T18:43:04.49
IV.RCAV.EHE. ML:2.6 0.00329 0.34 AML other m 2020-12-20T18:43:05.48
IV.RMP.HHE. ML:2.9 0.00381 0.32 AML other m 2020-12-20T18:43:08.78
IV.VIVA.HHE. ML:2.8 0.0030999999999999995 0.76 AML other m 2020-12-20T18:43:09.58
IV.RDP.HHN. ML:2.8 0.0026399999999999996 1.6 AML other m 2020-12-20T18:43:09.14
IV.PTQR.HHE. ML:2.4 0.0009435 1.8 AML other m 2020-12-20T18:43:10.99
IV.PTQR.HHN. ML:2.5 0.001054 0.28 AML other m 2020-12-20T18:43:11.00
IV.VIVA.HHN. ML:2.9 0.003415 0.24 AML other m 2020-12-20T18:43:11.69
IV.RMP.HHN. ML:2.8 0.0037099999999999998 0.28 AML other m 2020-12-20T18:43:11.97
IV.FIAM.HHE. ML:1.9 0.000374 1.38 AML other m 2020-12-20T18:43:12.18
IV.GUAR.HHE. ML:2.5 0.001004 0.28 AML other m 2020-12-20T18:43:12.28
IV.RDP.HHE. ML:2.6 0.0017399999999999998 0.48 AML other m 2020-12-20T18:43:12.44
IV.GUAR.HHN. ML:2.3 0.0007715 0.48 AML other m 2020-12-20T18:43:12.29
IV.SRES.HHN. ML:2.0 0.00035749999999999996 0.6 AML other m 2020-12-20T18:43:12.84
IV.FIAM.HHN. ML:2.0 0.0004205 0.42 AML other m 2020-12-20T18:43:12.35
IV.SRES.HHE. ML:1.8 0.0002275 0.52 AML other m 2020-12-20T18:43:13.50
IV.LATB.EHN. ML:1.5 0.00007575000000000001 0.92 AML other m 2020-12-20T18:43:15.79
IV.VVLD.HNN. ML:2.3 0.0003735 0.28 AML other m 2020-12-20T18:43:16.63
IV.GIUL.HHN. ML:2.0 0.00024249999999999999 0.58 AML other m 2020-12-20T18:43:17.42
IV.LATB.EHE. ML:1.7 0.0001105 0.98 AML other m 2020-12-20T18:43:17.84
IV.LNSS.HHE. ML:2.2 0.0003 0.54 AML other m 2020-12-20T18:43:19.19
IV.GIUL.HHE. ML:2.0 0.000214 0.64 AML other m 2020-12-20T18:43:19.54
IV.LRP.EHN. ML:1.6 0.0000735 0.18 AML other m 2020-12-20T18:43:20.18
IV.GAVE.EHE. ML:2.5 0.0004275 0.36 AML other m 2020-12-20T18:43:20.75
IV.ARRO.EHE. ML:2.2 0.0003055 1.2 AML other m 2020-12-20T18:43:20.17
IV.ARRO.EHN. ML:2.2 0.00032999999999999994 0.7 AML other m 2020-12-20T18:43:20.53
IV.GAVE.EHN. ML:2.6 0.00059 1.58 AML other m 2020-12-20T18:43:21.20
IV.CESX.HHN. ML:2.3 0.0003345 0.32 AML other m 2020-12-20T18:43:21.80
IV.CESX.HHE. ML:2.3 0.000345 0.38 AML other m 2020-12-20T18:43:22.28
IV.TOLF.HHN. ML:2.2 0.0002345 0.46 AML other m 2020-12-20T18:43:22.44
IV.LNSS.HHN. ML:2.3 0.0003655 0.56 AML other m 2020-12-20T18:43:22.59
IV.VVLD.HHN. ML:2.3 0.000406 0.42 AML other m 2020-12-20T18:43:23.29
IV.VVLD.HNE. ML:2.2 0.00033850000000000004 0.36 AML other m 2020-12-20T18:43:23.73
IV.VVLD.HHE. ML:2.2 0.000319 0.36 AML other m 2020-12-20T18:43:23.73
IV.MOMA.HHE. ML:2.4 0.000279 1.1 AML other m 2020-12-20T18:43:26.07
IV.LRP.EHE. ML:2.2 0.0002535 0.38 AML other m 2020-12-20T18:43:26.25
IV.TOLF.HHE. ML:1.9 0.00012955 0.52 AML other m 2020-12-20T18:43:26.46
IV.INTR.HHE. ML:2.3 0.000275 0.38 AML other m 2020-12-20T18:43:27.47
IV.INTR.HNE. ML:2.4 0.00030199999999999997 0.44 AML other m 2020-12-20T18:43:27.48
IV.T0110.HHE. ML:2.4 0.00039200000000000004 0.34 AML other m 2020-12-20T18:43:28.65
IV.MCI.EHE. ML:2.6 0.0003985 0.22 AML other m 2020-12-20T18:43:28.86
IV.MOMA.HNN. ML:2.5 0.00035099999999999997 0.68 AML other m 2020-12-20T18:43:28.59
IV.MOMA.HNE. ML:2.5 0.000354 0.4 AML other m 2020-12-20T18:43:29.60
IV.MOMA.HHN. ML:2.4 0.00026549999999999995 0.6 AML other m 2020-12-20T18:43:29.58
IV.MCI.EHN. ML:2.4 0.000249 0.68 AML other m 2020-12-20T18:43:30.02
IV.T0110.HHN. ML:2.4 0.00038 0.8 AML other m 2020-12-20T18:43:30.88
IV.CESI.HHN. ML:2.6 0.00032799999999999995 0.36 AML other m 2020-12-20T18:43:31.75
IV.INTR.HHN. ML:2.4 0.0003575 1.38 AML other m 2020-12-20T18:43:33.85
IV.INTR.HNN. ML:2.5 0.0004385 1.32 AML other m 2020-12-20T18:43:33.85
IV.CESI.HHE. ML:2.4 0.00020400000000000003 0.36 AML other m 2020-12-20T18:43:33.66
IV.FDMO.HHN. ML:2.1 0.0000963 0.38 AML other m 2020-12-20T18:43:35.64
IV.MGAB.HHE. ML:2.4 0.000193 1.44 AML other m 2020-12-20T18:43:36.20
IV.FDMO.HHE. ML:2.1 0.0001023 0.24 AML other m 2020-12-20T18:43:36.29
IV.MGAB.HHN. ML:2.3 0.000134 0.86 AML other m 2020-12-20T18:43:36.36
IV.ASSB.HHE. ML:2.3 0.0001665 0.48 AML other m 2020-12-20T18:43:38.67
IV.CSP1.EHE. ML:2.5 0.00021749999999999997 0.6 AML other m 2020-12-20T18:43:38.61
IV.ASSB.HHN. ML:2.2 0.0001205 0.42 AML other m 2020-12-20T18:43:39.42
IV.CSP1.EHN. ML:2.6 0.000279 0.6 AML other m 2020-12-20T18:43:39.83
IV.CERA.HHE. ML:2.2 0.000144 0.42 AML other m 2020-12-20T18:43:40.02
IV.CERA.HHN. ML:2.1 0.000128 0.38 AML other m 2020-12-20T18:43:41.59
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