Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 19-12-2020 and time 19:05:53 (UTC) in region 1 km E Vicovaro (RM)

A magnitude ML 1.7 earthquake occured in region: 1 km E Vicovaro (RM), on

  • 19-12-2020 19:05:53 (UTC)
  • 19-12-2020 20:05:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0120, 12.9090 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
Roccagiovine RM 4 263 6309
Castel Madama RM 5 7399 13708
San Polo dei Cavalieri RM 6 2992 16700
Ciciliano RM 6 1336 18036
Cineto Romano RM 6 601 18637
Anticoli Corrado RM 7 915 19552
Licenza RM 7 1011 20563
Roviano RM 7 1351 21914
Marcellina RM 8 7280 29194
Marano Equo RM 9 779 29973
Percile RM 9 255 30228
Riofreddo RM 9 781 31009
Cerreto Laziale RM 10 1118 32127
Arsoli RM 10 1586 33713
Tivoli RM 11 56533 90246
Agosta RM 11 1765 92011
San Gregorio da Sassola RM 11 1619 93630
Vallinfreda RM 11 283 93913
Gerano RM 11 1263 95176
Rocca Canterano RM 11 196 95372
Oricola AQ 12 1244 96616
Casape RM 12 744 97360
Pisoniano RM 12 770 98130
Vivaro Romano RM 13 182 98312
Monteflavio RM 13 1348 99660
Canterano RM 13 351 100011
Palombara Sabina RM 13 13269 113280
Rocca di Botte AQ 13 856 114136
Cervara di Roma RM 13 455 114591
Orvinio RI 14 405 114996
Poli RM 14 2418 117414
Rocca Santo Stefano RM 15 975 118389
Guidonia Montecelio RM 15 88673 207062
San Vito Romano RM 16 3273 210335
Moricone RM 16 2650 212985
Sant'Angelo Romano RM 16 5018 218003
Montorio Romano RM 16 1984 219987
Turania RI 16 241 220228
Camerata Nuova RM 17 447 220675
Pereto AQ 17 682 221357
Capranica Prenestina RM 17 351 221708
Gallicano nel Lazio RM 17 6334 228042
Pozzaglia Sabina RI 17 360 228402
Carsoli AQ 17 5396 233798
Bellegra RM 18 2887 236685
Scandriglia RI 18 3108 239793
Collalto Sabino RI 18 442 240235
Castel San Pietro Romano RM 18 902 241137
Subiaco RM 19 9074 250211
Rocca di Cave RM 19 377 250588
Palestrina RM 19 21672 272260
Nerola RM 20 1926 274186
Olevano Romano RM 20 6687 280873
Montelibretti RM 20 5323 286196
Roiate RM 20 737 286933

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NE of Tivoli (56533 inhabitants)
15 Km E of Guidonia Montecelio (88673 inhabitants)
38 Km E of Roma (2864731 inhabitants)
38 Km N of Velletri (53303 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)
65 Km SE of Terni (111501 inhabitants)
67 Km NE of Anzio (54211 inhabitants)
80 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 1.7 2020-12-19
19:05:53		 42.0122 12.909 10 2021-02-26
14:56:15		 Bollettino Sismico Italiano INGV 86241381
Reviewed
Rev100 		ML 1.7 2020-12-19
19:05:53		 42.0052 12.9007 10 2020-12-19
19:15:27		 Sala Sismica INGV-Roma 85553451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-19 19:05:53 ± 0.05
Latitude 42.0122 ± 0.0027
Longitude 12.9090 ± 0.0036
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86241381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.83007
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 85553451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-19 19:15:27

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 86241381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-14 08:56:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2020-12-19T19:06:15.16 0.3 undecidable manual S 126 69.0753 50 0.23 67
IV.VVLD.HHZ. 2020-12-19T19:06:12.98 0.3 undecidable manual S 105 60.9945 50 0.21 68
IV.GIUL.HHZ. 2020-12-19T19:06:11.87 0.3 undecidable manual S 150 57.8976 50 -0.06 71
IV.LATB.EHZ. 2020-12-19T19:06:11.60 0.3 undecidable manual S 176 57.6978 50 -0.26 68
IV.MOMA.HHZ. 2020-12-19T19:06:09.66 0.3 undecidable manual P 343 92.1411 50 0.16 65
IV.INTR.HHZ. 2020-12-19T19:06:08.14 0.3 undecidable manual P 90 82.0512 50 0.2 66
IV.PTQR.HHZ. 2020-12-19T19:06:07.63 0.3 undecidable manual S 88 40.5261 50 0.34 69
IV.SMA1.EHN. 2020-12-19T19:06:07.36 0.3 undecidable manual P 27 76.9674 50 0.19 66
IV.GUAR.HHZ. 2020-12-19T19:06:07.44 0.3 undecidable manual S 126 41.1255 50 -0.02 73
IV.SRES.HHZ. 2020-12-19T19:06:07.77 0.3 undecidable manual S 307 41.2254 50 0.29 69
IV.T1299.HNN. 2020-12-19T19:06:07.14 0.3 undecidable manual P 24 75.4689 50 0.21 66
IV.CESX.HHE. 2020-12-19T19:06:06.03 0.1 undecidable manual P 338 71.2731 50 -0.25 88
IV.GAVE.EHZ. 2020-12-19T19:06:06.74 0.1 undecidable manual P 359 75.4689 50 -0.18 89
IV.CAMP.HHE. 2020-12-19T19:06:06.11 0.6 undecidable manual P 35 71.1732 50 -0.15 45
IV.SAMA.EHZ. 2020-12-19T19:06:06.56 0.3 undecidable manual S 226 36.6411 50 0.3 70
IV.LRP.EHZ. 2020-12-19T19:06:05.68 0.3 undecidable manual P 126 69.0753 50 -0.27 66
IV.LNSS.HNZ. 2020-12-19T19:06:05.21 0.3 undecidable manual P 9 66.378 50 -0.32 66
IV.FIAM.HHZ. 2020-12-19T19:06:05.34 0.3 undecidable manual S 31 33.1446 50 0.02 74
IV.RDP.HHZ. 2020-12-19T19:06:05.36 0.6 undecidable manual S 211 32.3454 50 0.24 47
IV.ARRO.EHZ. 2020-12-19T19:06:05.06 0.1 undecidable manual P 349 63.9915 50 -0.1 92
IV.VVLD.HHZ. 2020-12-19T19:06:04.39 0.1 undecidable manual P 105 60.9945 50 -0.31 89
IV.RMP.HHZ. 2020-12-19T19:06:04.16 0.3 undecidable manual S 217 27.8499 109 0.24 72
IT.MMP1.HGZ. 2020-12-19T19:06:04.34 0.6 undecidable manual S 333 29.4483 50 0.01 50
MN.AQU.HNN. 2020-12-19T19:06:04.18 0.1 undecidable manual P 47 55.6998 50 0.3 90
IV.LATB.EHZ. 2020-12-19T19:06:03.77 0.3 undecidable manual P 176 57.6978 50 -0.41 66
IV.GIUL.HHZ. 2020-12-19T19:06:03.80 0.3 undecidable manual P 150 57.8976 50 -0.42 65
IV.GUAR.HHZ. 2020-12-19T19:06:01.40 0.3 undecidable manual P 126 41.1255 50 -0.24 70
IV.SRES.HHZ. 2020-12-19T19:06:01.26 0.1 undecidable manual P 307 41.2254 50 -0.4 90
IV.SAMA.EHZ. 2020-12-19T19:06:01.44 0.3 undecidable manual P 226 36.6411 50 0.49 67
IV.LAV9.HNZ. 2020-12-19T19:06:01.93 0.3 undecidable manual P 205 40.9257 50 0.32 69
IV.PTQR.HHZ. 2020-12-19T19:06:01.56 0.3 undecidable manual P 88 40.5261 50 0.02 73
IT.CSO1.HGZ. 2020-12-19T19:06:00.96 0.3 undecidable manual S 56 17.7711 118 0.28 72
IV.VIVA.HHZ. 2020-12-19T19:06:00.38 0.3 undecidable manual P 202 31.2465 50 0.27 71
IV.FIAM.HHZ. 2020-12-19T19:06:00.33 0.1 undecidable manual P 31 33.1446 50 -0.08 98
IV.RCAV.EHZ. 2020-12-19T19:06:00.59 0.3 undecidable manual S 171 18.5703 117 -0.33 72
IV.RDP.HHZ. 2020-12-19T19:06:00.05 0.1 undecidable manual P 211 32.3454 50 -0.24 95
IT.MMP1.HGZ. 2020-12-19T19:05:59.54 0.3 undecidable manual P 333 29.4483 50 -0.29 71
IV.RMP.HHZ. 2020-12-19T19:05:59.62 0.1 undecidable manual P 217 27.8499 109 0.03 100
IV.MTCE.HHZ. 2020-12-19T19:05:59.42 0.3 undecidable manual S 275 13.7751 125 -0.09 76
IV.MTCE.HHZ. 2020-12-19T19:05:57.20 0.1 undecidable manual P 275 13.7751 125 0.15 100
IV.RCAV.EHZ. 2020-12-19T19:05:57.98 0.3 undecidable manual P 171 18.5703 117 0.11 75
IT.CSO1.HGZ. 2020-12-19T19:05:57.77 0.3 undecidable manual P 56 17.7711 118 0.05 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHE. ML:1.9 0.0008975 0.36 AML other m 2020-12-19T19:05:59.73
IV.MTCE.HHN. ML:1.8 0.0006025000000000001 0.58 AML other m 2020-12-19T19:06:00.18
IV.RCAV.EHN. ML:1.9 0.0006515 0.88 AML other m 2020-12-19T19:06:01.54
IV.RCAV.EHE. ML:2.0 0.000907 0.34 AML other m 2020-12-19T19:06:02.54
IV.PTQR.HHE. ML:1.8 0.0002 0.2 AML other m 2020-12-19T19:06:08.11
IV.PTQR.HHN. ML:1.9 0.00027850000000000005 0.28 AML other m 2020-12-19T19:06:08.12
IV.FIAM.HHN. ML:1.5 0.0001285 0.34 AML other m 2020-12-19T19:06:08.74
IV.GUAR.HHE. ML:1.7 0.000183 1.12 AML other m 2020-12-19T19:06:09.91
IV.FIAM.HHE. ML:1.4 0.0001001 1.24 AML other m 2020-12-19T19:06:10.70
IV.GUAR.HHN. ML:1.7 0.0001595 0.4 AML other m 2020-12-19T19:06:12.26
IV.GIUL.HHN. ML:1.4 0.000057549999999999996 0.16 AML other m 2020-12-19T19:06:14.09
IV.GIUL.HHE. ML:1.3 0.0000465 0.64 AML other m 2020-12-19T19:06:16.62
IV.GAVE.EHE. ML:1.8 0.00009425 0.74 AML other m 2020-12-19T19:06:17.91
IV.GAVE.EHN. ML:1.9 0.00011449999999999999 1.76 AML other m 2020-12-19T19:06:17.98
IV.VVLD.HHN. ML:1.6 0.000088 0.4 AML other m 2020-12-19T19:06:20.39
IV.VVLD.HHE. ML:1.5 0.00006570000000000001 0.4 AML other m 2020-12-19T19:06:20.65
IV.INTR.HHE. ML:1.7 0.00006355 0.38 AML other m 2020-12-19T19:06:24.58
IV.MOMA.HHN. ML:1.7 0.00005739999999999999 0.22 AML other m 2020-12-19T19:06:24.87
IV.MOMA.HHE. ML:1.7 0.000054449999999999995 0.6 AML other m 2020-12-19T19:06:25.07
IV.INTR.HHN. ML:1.8 0.0000788 1.38 AML other m 2020-12-19T19:06:30.95
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