Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 19-12-2020 and time 18:56:23 (UTC) in region 2 km E Vicovaro (RM)

A magnitude ML 1.5 earthquake occured in region: 2 km E Vicovaro (RM), on

  • 19-12-2020 18:56:23 (UTC)
  • 19-12-2020 19:56:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0080, 12.9110 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 2 4019 4019
Mandela RM 3 917 4936
Sambuci RM 3 925 5861
Saracinesco RM 4 185 6046
Roccagiovine RM 5 263 6309
Castel Madama RM 5 7399 13708
Ciciliano RM 6 1336 15044
San Polo dei Cavalieri RM 6 2992 18036
Cineto Romano RM 7 601 18637
Anticoli Corrado RM 7 915 19552
Roviano RM 7 1351 20903
Licenza RM 8 1011 21914
Marcellina RM 9 7280 29194
Marano Equo RM 9 779 29973
Cerreto Laziale RM 9 1118 31091
Riofreddo RM 10 781 31872
Arsoli RM 10 1586 33458
Percile RM 10 255 33713
San Gregorio da Sassola RM 10 1619 35332
Tivoli RM 10 56533 91865
Agosta RM 11 1765 93630
Gerano RM 11 1263 94893
Vallinfreda RM 11 283 95176
Rocca Canterano RM 11 196 95372
Casape RM 11 744 96116
Pisoniano RM 12 770 96886
Oricola AQ 12 1244 98130
Canterano RM 13 351 98481
Vivaro Romano RM 13 182 98663
Cervara di Roma RM 13 455 99118
Monteflavio RM 13 1348 100466
Rocca di Botte AQ 13 856 101322
Poli RM 13 2418 103740
Palombara Sabina RM 14 13269 117009
Orvinio RI 14 405 117414
Rocca Santo Stefano RM 14 975 118389
San Vito Romano RM 15 3273 121662
Guidonia Montecelio RM 15 88673 210335
Camerata Nuova RM 16 447 210782
Capranica Prenestina RM 17 351 211133
Sant'Angelo Romano RM 17 5018 216151
Moricone RM 17 2650 218801
Turania RI 17 241 219042
Montorio Romano RM 17 1984 221026
Pereto AQ 17 682 221708
Gallicano nel Lazio RM 17 6334 228042
Bellegra RM 17 2887 230929
Carsoli AQ 17 5396 236325
Pozzaglia Sabina RI 18 360 236685
Castel San Pietro Romano RM 18 902 237587
Rocca di Cave RM 18 377 237964
Subiaco RM 18 9074 247038
Collalto Sabino RI 18 442 247480
Scandriglia RI 18 3108 250588
Palestrina RM 19 21672 272260
Olevano Romano RM 19 6687 278947
Roiate RM 20 737 279684
Zagarolo RM 20 17843 297527
Nerola RM 20 1926 299453

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Tivoli (56533 inhabitants)
15 Km E of Guidonia Montecelio (88673 inhabitants)
37 Km N 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)
56 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)
66 Km NE of Anzio (54211 inhabitants)
81 Km SE of Viterbo (67173 inhabitants)
93 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 1.5 2020-12-19
18:56:23		 42.0082 12.9108 10 2021-02-26
14:56:15		 Bollettino Sismico Italiano INGV 86226721
Reviewed
Rev100 		ML 1.5 2020-12-19
18:56:23		 42.0052 12.9083 9 2020-12-19
19:05:12		 Sala Sismica INGV-Roma 85553041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-19 18:56:23 ± 0.05
Latitude 42.0082 ± 0.0027
Longitude 12.9108 ± 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 86226721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 232
Semi-minor axis of confidence ellipse (meter) 218
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
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) 51
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.83367
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 85553041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-19 19:05:12

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 86226721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-13 15:22:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2020-12-19T18:58:22.64 3.0 undecidable manual Sg 14.17 0
IV.SBPO.HNZ. 2020-12-19T18:58:06.61 3.0 undecidable manual Sg 4.85 0
IV.AGLI.HHZ. 2020-12-19T18:57:59.25 3.0 undecidable manual Sg 7.57 0
XK.GIZZ.HHZ. 2020-12-19T18:57:30.74 3.0 negative manual Pg 5.4 0
IV.SBPO.HNZ. 2020-12-19T18:57:23.27 3.0 undecidable manual Pg 4.07 0
IV.RIBO.EHZ.01 2020-12-19T18:57:16.55 3.0 undecidable manual Sn -4.27 0
IV.GAVE.EHZ. 2020-12-19T18:56:46.93 0.6 undecidable manual S 359 75.8685 50 0.25 44
IV.LRP.EHZ. 2020-12-19T18:56:44.94 0.3 undecidable manual S 125 68.7756 50 0.17 68
IV.VVLD.HHZ. 2020-12-19T18:56:42.80 0.6 undecidable manual S 104 60.7947 50 0.16 46
IV.GIUL.HHZ. 2020-12-19T18:56:41.60 0.6 undecidable manual S 150 57.3981 50 -0.15 46
IV.LATB.EHZ. 2020-12-19T18:56:41.56 0.6 undecidable manual S 176 57.1983 50 -0.13 46
IV.MOMA.HHZ. 2020-12-19T18:56:39.26 0.6 undecidable manual P 343 92.5407 50 -0.26 42
IV.SMA1.EHN. 2020-12-19T18:56:37.52 0.1 undecidable manual P 27 77.367 50 0.36 85
IV.GUAR.HHZ. 2020-12-19T18:56:37.60 0.6 undecidable manual S 125 40.7259 50 0.3 46
IV.PTQR.HHZ. 2020-12-19T18:56:37.33 0.3 undecidable manual S 88 40.4262 50 0.12 72
IV.SRES.HHZ. 2020-12-19T18:56:37.79 0.3 undecidable manual S 308 41.625 50 0.26 70
IV.GAVE.EHZ. 2020-12-19T18:56:36.67 0.3 undecidable manual P 359 75.8685 50 -0.27 65
IV.CESX.HHE. 2020-12-19T18:56:36.25 0.1 undecidable manual P 338 71.6727 50 -0.05 92
IV.CAMP.HHE. 2020-12-19T18:56:36.37 0.1 undecidable manual P 35 71.373 50 0.11 91
IV.T1299.HNN. 2020-12-19T18:56:36.72 0.1 undecidable manual P 24 75.8685 50 -0.22 88
IV.RDP.HHZ. 2020-12-19T18:56:35.12 0.3 undecidable manual S 211 32.0457 50 0.13 73
IV.LNSS.HNZ. 2020-12-19T18:56:35.28 0.1 undecidable manual P 9 66.7776 50 -0.27 89
IV.FIAM.HHZ. 2020-12-19T18:56:35.45 0.3 undecidable manual S 30 33.4443 50 0.1 73
IV.LRP.EHZ. 2020-12-19T18:56:35.69 0.6 undecidable manual P 125 68.7756 50 -0.16 45
IV.VVLD.HHZ. 2020-12-19T18:56:34.30 0.3 undecidable manual P 104 60.7947 50 -0.32 66
IV.ARRO.EHZ. 2020-12-19T18:56:34.97 0.1 undecidable manual P 349 64.491 50 -0.21 90
IT.MMP1.HGZ. 2020-12-19T18:56:34.38 0.6 undecidable manual S 333 29.8479 50 -0.02 50
IV.GIUL.HHZ. 2020-12-19T18:56:33.78 0.1 undecidable manual P 150 57.3981 50 -0.32 89
IV.LATB.EHZ. 2020-12-19T18:56:33.70 0.3 undecidable manual P 176 57.1983 50 -0.36 66
IV.PTQR.HHZ. 2020-12-19T18:56:31.47 0.1 undecidable manual P 88 40.4262 50 -0.01 98
IV.SRES.HHZ. 2020-12-19T18:56:31.52 0.6 undecidable manual P 308 41.625 50 -0.14 48
IV.GUAR.HHZ. 2020-12-19T18:56:31.39 0.6 undecidable manual P 125 40.7259 50 -0.14 48
IV.SAMA.EHZ. 2020-12-19T18:56:31.33 0.1 undecidable manual P 226 36.4413 50 0.46 90
IT.CSO1.HGZ. 2020-12-19T18:56:31.04 0.6 undecidable manual S 55 17.871 118 0.35 48
IV.VIVA.HHZ. 2020-12-19T18:56:30.16 0.6 undecidable manual P 202 30.8469 50 0.15 48
IV.RDP.HHZ. 2020-12-19T18:56:30.33 0.3 undecidable manual P 211 32.0457 50 0.13 73
IV.FIAM.HHZ. 2020-12-19T18:56:30.29 0.1 undecidable manual P 30 33.4443 50 -0.12 97
IV.RCAV.EHZ. 2020-12-19T18:56:30.45 0.3 undecidable manual S 171 18.0708 118 -0.31 72
IT.MMP1.HGZ. 2020-12-19T18:56:29.58 0.1 undecidable manual P 333 29.8479 50 -0.28 94
IV.MTCE.HHZ. 2020-12-19T18:56:29.47 0.3 undecidable manual S 277 13.9749 125 -0.08 76
IV.RMP.HHZ. 2020-12-19T18:56:29.79 0.6 undecidable manual P 218 27.6501 50 0.28 47
IT.CSO1.HGZ. 2020-12-19T18:56:28.09 0.6 undecidable manual P 55 17.871 118 0.38 47
IV.MTCE.HHZ. 2020-12-19T18:56:27.19 0.1 undecidable manual P 277 13.9749 125 0.13 100
IV.RCAV.EHZ. 2020-12-19T18:56:27.89 0.1 undecidable manual P 171 18.0708 118 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHN. ML:1.5 0.00030608745 0.2816 AML other m 2020-12-19T18:56:29.73
IV.MTCE.HHE. ML:1.8 0.00071493705 0.384 AML other m 2020-12-19T18:56:29.74
IV.RCAV.EHN. ML:1.7 0.00044511089999999995 0.192 AML other m 2020-12-19T18:56:31.53
IV.RCAV.EHE. ML:1.8 0.0005806469000000001 0.3584 AML other m 2020-12-19T18:56:32.54
IV.PTQR.HHN. ML:1.8 0.0002244882 0.2816 AML other m 2020-12-19T18:56:38.11
IV.PTQR.HHE. ML:1.8 0.00021061105 0.192 AML other m 2020-12-19T18:56:38.22
IV.FIAM.HHN. ML:1.3 0.00008912491999999999 0.3456 AML other m 2020-12-19T18:56:38.75
IV.FIAM.HHE. ML:1.2 0.00006912856 0.4608 AML other m 2020-12-19T18:56:39.12
IV.GIUL.HHN. ML:1.3 0.000042482554999999996 0.1792 AML other m 2020-12-19T18:56:44.17
IV.GAVE.EHE. ML:1.6 0.00006431746499999999 1.5904 AML other m 2020-12-19T18:56:47.91
IV.GIUL.HHE. ML:1.2 0.00003514028 0.3712 AML other m 2020-12-19T18:56:48.35
IV.GAVE.EHN. ML:1.7 0.00006896384 0.512 AML other m 2020-12-19T18:56:48.10
IV.VVLD.HHN. ML:1.5 0.00006147763 0.4096 AML other m 2020-12-19T18:56:50.39
IV.VVLD.HHE. ML:1.4 0.00005043196 0.4096 AML other m 2020-12-19T18:56:50.64
IV.LRP.EHE. ML:1.4 0.000041218210000000005 0.384 AML other m 2020-12-19T18:56:51.55
IV.LRP.EHN. ML:0.8 0.000011754225 0.256 AML other m 2020-12-19T18:56:52.40
IV.MOMA.HHN. ML:1.6 0.000037886295 0.2048 AML other m 2020-12-19T18:56:54.87
IV.MOMA.HHE. ML:1.6 0.000046644065 0.2048 AML other m 2020-12-19T18:56:56.17
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