Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 19-12-2020 and time 19:19:06 (Italy) in region 1 km SE Vicovaro (RM)

A magnitude ML 1.6 earthquake occured in region: 1 km SE Vicovaro (RM), on

  • 19-12-2020 18:19:06 (UTC)
  • 19-12-2020 19:19:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0100, 12.9050 at 10 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
Vicovaro RM 1 4019 4019
Mandela RM 3 917 4936
Sambuci RM 4 925 5861
Saracinesco RM 4 185 6046
Castel Madama RM 5 7399 13445
Roccagiovine RM 5 263 13708
San Polo dei Cavalieri RM 5 2992 16700
Ciciliano RM 6 1336 18036
Cineto Romano RM 7 601 18637
Anticoli Corrado RM 7 915 19552
Licenza RM 7 1011 20563
Roviano RM 8 1351 21914
Marcellina RM 8 7280 29194
Marano Equo RM 9 779 29973
Cerreto Laziale RM 10 1118 31091
Percile RM 10 255 31346
Riofreddo RM 10 781 32127
Arsoli RM 10 1586 33713
Tivoli RM 10 56533 90246
San Gregorio da Sassola RM 10 1619 91865
Agosta RM 11 1765 93630
Gerano RM 11 1263 94893
Vallinfreda RM 11 283 95176
Rocca Canterano RM 12 196 95372
Casape RM 12 744 96116
Pisoniano RM 12 770 96886
Oricola AQ 12 1244 98130
Monteflavio RM 13 1348 99478
Palombara Sabina RM 13 13269 112747
Canterano RM 13 351 113098
Vivaro Romano RM 13 182 113280
Poli RM 14 2418 115698
Cervara di Roma RM 14 455 116153
Rocca di Botte AQ 14 856 117009
Orvinio RI 14 405 117414
Rocca Santo Stefano RM 15 975 118389
Guidonia Montecelio RM 15 88673 207062
San Vito Romano RM 15 3273 210335
Moricone RM 16 2650 212985
Sant'Angelo Romano RM 16 5018 218003
Montorio Romano RM 17 1984 219987
Turania RI 17 241 220228
Gallicano nel Lazio RM 17 6334 226562
Capranica Prenestina RM 17 351 226913
Camerata Nuova RM 17 447 227360
Pereto AQ 17 682 228042
Pozzaglia Sabina RI 18 360 228402
Bellegra RM 18 2887 231289
Carsoli AQ 18 5396 236685
Castel San Pietro Romano RM 18 902 237587
Scandriglia RI 18 3108 240695
Rocca di Cave RM 18 377 241072
Collalto Sabino RI 19 442 241514
Subiaco RM 19 9074 250588
Palestrina RM 19 21672 272260
Nerola RM 20 1926 274186
Olevano Romano RM 20 6687 280873
Montelibretti RM 20 5323 286196
Zagarolo RM 20 17843 304039
Roiate RM 20 737 304776

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NE of Tivoli (56533 inhabitants)
15 Km E of Guidonia Montecelio (88673 inhabitants)
37 Km E of Roma (2864731 inhabitants)
37 Km N of Velletri (53303 inhabitants)
50 Km NE of Pomezia (62966 inhabitants)
51 Km NE of Aprilia (73446 inhabitants)
56 Km SW of L'Aquila (69753 inhabitants)
60 Km N of Latina (125985 inhabitants)
61 Km E of Fiumicino (78395 inhabitants)
65 Km SE of Terni (111501 inhabitants)
66 Km NE of Anzio (54211 inhabitants)
80 Km SE of Viterbo (67173 inhabitants)
92 Km E of Civitavecchia (52991 inhabitants)
98 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 1.6 2020-12-19
18:19:06		 42.0095 12.9052 11 2021-02-26
14:56:15		 Bollettino Sismico Italiano INGV 86225911
Reviewed
Rev100 		ML 1.5 2020-12-19
18:19:06		 42.0072 12.9008 11 2020-12-19
18:30:18		 Sala Sismica INGV-Roma 85552201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-19 18:19:06 ± 0.04
Latitude 42.0095 ± 0.0018
Longitude 12.9052 ± 0.0036
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86225911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 251
Semi-minor axis of confidence ellipse (meter) 103
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.92540
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 86225911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-13 14:44:29

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 85552201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-19 18:30:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2020-12-19T18:20:49.81 3.0 undecidable manual Sn 1.71 0
CH.BERNI.HHZ. 2020-12-19T18:20:38.49 3.0 undecidable manual Sn -9.99 0
IV.MUCR.HHZ. 2020-12-19T18:20:17.96 3.0 undecidable manual Pg 10.9 0
IV.SBPO.HNZ. 2020-12-19T18:20:15.22 3.0 undecidable manual Sg -7.05 0
CR.ZAG.BHZ. 2020-12-19T18:20:08.16 3.0 undecidable manual Pg 3.72 0
OX.SABO.HNZ. 2020-12-19T18:19:58.06 3.0 undecidable manual Pg 0.89 0
OX.DRE.HHZ. 2020-12-19T18:19:49.48 3.0 undecidable manual Pn -9.99 0
IV.ZONE.HHZ. 2020-12-19T18:19:45.95 3.0 negative manual Pn -9.99 0
IV.PLMA.HHZ. 2020-12-19T18:19:27.17 3.0 undecidable manual Pn -9.99 0
IV.GIUL.HHZ. 2020-12-19T18:19:24.10 0.6 undecidable manual S 150 57.7977 50 0.06 47
IV.CERA.HHZ. 2020-12-19T18:19:23.04 0.6 undecidable manual P 116 102.7194 50 -0.31 41
IV.MOMA.HHZ. 2020-12-19T18:19:21.67 0.6 undecidable manual P 343 92.3409 50 -0.06 44
IV.MNTT.EHZ. 2020-12-19T18:19:20.69 3.0 positive manual Pg 0.46 0
IV.PTQR.HHZ. 2020-12-19T18:19:19.69 0.6 undecidable manual S 88 40.8258 50 0.17 47
IV.GAVE.EHN. 2020-12-19T18:19:19.00 0.3 undecidable manual P 359 75.7686 50 -0.18 66
IV.GUAR.HHZ. 2020-12-19T18:19:19.64 0.6 undecidable manual S 125 41.2254 50 0.03 48
IV.SRES.HHZ. 2020-12-19T18:19:19.80 0.6 undecidable manual S 308 41.1255 50 0.2 47
IV.SMA1.EHN. 2020-12-19T18:19:19.54 0.6 undecidable manual P 27 77.367 50 0.1 45
IV.T0110.HHZ. 2020-12-19T18:19:19.29 0.1 undecidable manual P 71 75.7686 50 0.11 89
IV.CESX.HHE. 2020-12-19T18:19:18.77 0.1 undecidable manual P 339 71.373 50 0.26 87
IV.SAMA.EHZ. 2020-12-19T18:19:18.46 0.3 undecidable manual S 226 36.2415 50 0.18 71
IV.CAMP.HHE. 2020-12-19T18:19:18.88 0.3 undecidable manual P 35 71.5728 50 0.35 64
IV.ARRO.EHZ. 2020-12-19T18:19:17.27 0.6 undecidable manual P 350 64.1913 50 -0.13 45
IV.FIAM.HHZ. 2020-12-19T18:19:17.44 0.3 undecidable manual S 31 33.5442 50 -0.13 72
IV.LNSS.HNZ. 2020-12-19T18:19:17.82 0.6 undecidable manual P 10 66.7776 50 0.03 46
IV.RDP.HHZ. 2020-12-19T18:19:17.20 0.6 undecidable manual S 210 31.9458 50 0.06 49
IT.MMP1.HGE. 2020-12-19T18:19:16.23 0.6 undecidable manual S 334 29.5482 50 -0.27 47
MN.AQU.HNN. 2020-12-19T18:19:16.46 0.6 undecidable manual P 47 56.0994 50 0.3 45
IV.GIUL.HHZ. 2020-12-19T18:19:16.10 0.1 undecidable manual P 150 57.7977 50 -0.32 89
IV.LATB.EHZ. 2020-12-19T18:19:16.57 0.1 undecidable manual P 175 57.3981 50 0.22 91
IV.SAMA.EHZ. 2020-12-19T18:19:13.05 0.1 undecidable manual P 226 36.2415 50 -0.05 97
IV.SRES.HHZ. 2020-12-19T18:19:13.68 0.1 undecidable manual P 308 41.1255 50 -0.17 94
IV.RCAV.EHE. 2020-12-19T18:19:13.12 0.6 undecidable manual S 170 18.2706 120 -0.2 49
IV.PTQR.HHZ. 2020-12-19T18:19:13.78 0.1 undecidable manual P 88 40.8258 50 -0.02 97
IT.CSO1.HGE. 2020-12-19T18:19:13.23 0.6 undecidable manual S 56 18.1707 120 -0.05 50
IV.GUAR.HHZ. 2020-12-19T18:19:13.58 0.1 undecidable manual P 125 41.2254 50 -0.28 92
IV.RDP.HHZ. 2020-12-19T18:19:12.22 0.6 undecidable manual P 210 31.9458 50 -0.22 47
IV.FIAM.HHZ. 2020-12-19T18:19:12.70 0.1 undecidable manual P 31 33.5442 50 0.02 98
IV.MTCE.HHZ. 2020-12-19T18:19:11.73 0.6 undecidable manual S 276 13.4754 128 -0.2 49
IV.ARVD.HHZ. 2020-12-19T18:19:11.61 3.0 undecidable manual P -9.99 0
IT.MMP1.HGE. 2020-12-19T18:19:11.96 0.1 undecidable manual P 334 29.5482 50 -0.1 97
IV.RMP.HHZ. 2020-12-19T18:19:11.90 0.6 positive manual P 217 27.4503 50 0.16 48
IV.RCAV.EHE. 2020-12-19T18:19:10.43 0.1 undecidable manual P 170 18.2706 120 0.2 97
IT.CSO1.HGE. 2020-12-19T18:19:10.33 0.6 undecidable manual P 56 18.1707 120 0.12 49
IV.MTCE.HHZ. 2020-12-19T18:19:09.54 0.1 positive manual P 276 13.4754 128 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHE. ML:2.0 0.00095626935 1.7056 AML other m 2020-12-19T18:19:12.08
IV.MTCE.HHN. ML:1.6 0.0003890007 0.1536 AML other m 2020-12-19T18:19:12.11
IV.RMP.HHE. ML:2.1 0.00072069615 0.32 AML other m 2020-12-19T18:19:18.15
IV.FIAM.HHN. ML:1.4 0.00009642339 0.768 AML other m 2020-12-19T18:19:19.44
IV.FIAM.HNN. ML:1.8 0.00024734984999999997 0.704 AML other m 2020-12-19T18:19:19.45
IV.RMP.HHN. ML:2.3 0.0009568158500000001 1.6928 AML other m 2020-12-19T18:19:20.93
IV.PTQR.HHE. ML:1.5 0.00010713101999999999 0.2176 AML other m 2020-12-19T18:19:20.29
IV.PTQR.HHN. ML:1.4 0.000091972455 0.2688 AML other m 2020-12-19T18:19:20.31
IV.SRES.HHN. ML:1.3 0.00006348062 0.3968 AML other m 2020-12-19T18:19:21.29
IV.GUAR.HHE. ML:1.9 0.00024498170000000004 0.3712 AML other m 2020-12-19T18:19:21.64
IV.SRES.HHE. ML:1.4 0.00007259682000000001 1.6544 AML other m 2020-12-19T18:19:23.84
IV.GUAR.HHN. ML:1.7 0.0001809781 1.6544 AML other m 2020-12-19T18:19:24.85
IV.GIUL.HHN. ML:1.3 0.000039643524999999996 0.3584 AML other m 2020-12-19T18:19:25.70
IV.GIUL.HHE. ML:1.3 0.000037912765 0.3328 AML other m 2020-12-19T18:19:30.95
IV.T0110.HHN. ML:1.7 0.00007520115 1.5776 AML other m 2020-12-19T18:19:31.15
IV.T0110.HHE. ML:1.6 0.00006309477500000001 0.3328 AML other m 2020-12-19T18:19:37.22
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