Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 16-12-2020 and time 06:43:39 (Italy) in region 2 km SE Vicovaro (RM)

A magnitude ML 1.9 earthquake occured in region: 2 km SE Vicovaro (RM), on

  • 16-12-2020 05:43:39 (UTC)
  • 16-12-2020 06:43:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0040, 12.9170 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.

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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
Sambuci RM 3 925 4944
Saracinesco RM 3 185 5129
Mandela RM 3 917 6046
Castel Madama RM 5 7399 13445
Ciciliano RM 5 1336 14781
Roccagiovine RM 5 263 15044
Anticoli Corrado RM 6 915 15959
San Polo dei Cavalieri RM 6 2992 18951
Cineto Romano RM 7 601 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
Marcellina RM 9 7280 32677
Riofreddo RM 9 781 33458
Agosta RM 10 1765 35223
Gerano RM 10 1263 36486
San Gregorio da Sassola RM 10 1619 38105
Percile RM 10 255 38360
Rocca Canterano RM 10 196 38556
Tivoli RM 11 56533 95089
Pisoniano RM 11 770 95859
Vallinfreda RM 11 283 96142
Casape RM 11 744 96886
Oricola AQ 11 1244 98130
Canterano RM 12 351 98481
Cervara di Roma RM 13 455 98936
Rocca di Botte AQ 13 856 99792
Poli RM 13 2418 102210
Vivaro Romano RM 13 182 102392
Rocca Santo Stefano RM 14 975 103367
Monteflavio RM 14 1348 104715
Palombara Sabina RM 14 13269 117984
Orvinio RI 14 405 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
Bellegra RM 16 2887 214020
Pereto AQ 17 682 214702
Gallicano nel Lazio RM 17 6334 221036
Turania RI 17 241 221277
Sant'Angelo Romano RM 17 5018 226295
Carsoli AQ 17 5396 231691
Moricone RM 17 2650 234341
Castel San Pietro Romano RM 18 902 235243
Subiaco RM 18 9074 244317
Montorio Romano RM 18 1984 246301
Rocca di Cave RM 18 377 246678
Pozzaglia Sabina RI 18 360 247038
Collalto Sabino RI 18 442 247480
Palestrina RM 18 21672 269152
Olevano Romano RM 19 6687 275839
Roiate RM 19 737 276576
Scandriglia RI 19 3108 279684
Zagarolo RM 20 17843 297527
Genazzano RM 20 6036 303563
Affile RM 20 1548 305111

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)
56 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)
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 1.9 2020-12-16
05:43:39		 42.0042 12.9173 9 2021-02-26
14:56:11		 Bollettino Sismico Italiano INGV 85646671
Reviewed
Rev100 		ML 2.1 2020-12-16
05:43:39		 42.0057 12.912 10 2020-12-16
05:52:57		 Sala Sismica INGV-Roma 85461351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-16 05:43:39 ± 0.07
Latitude 42.0042 ± 0.0036
Longitude 12.9173 ± 0.0048
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85646671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 142
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 30
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
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) 0.13130
Epicentral distance of station farthest from the epicenter (degree) 1.14484
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 85461351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-16 05:52:57

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 85646671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-23 18:01:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-12-16T05:44:07.58 0.6 undecidable manual S 342 93.1401 50 0.68 37
IV.VAGA.HHZ. 2020-12-16T05:44:00.55 0.3 undecidable manual P 120 127.0728 50 0.15 59
IV.VVLD.HHZ. 2020-12-16T05:43:58.11 0.6 undecidable manual S 104 60.0954 50 0.02 46
IV.GIUL.HHZ. 2020-12-16T05:43:57.06 0.6 undecidable manual S 150 56.7987 50 -0.13 46
IV.LATB.EHZ. 2020-12-16T05:43:56.84 0.6 undecidable manual S 176 56.6988 50 -0.33 44
IV.TERO.HHZ. 2020-12-16T05:43:55.11 0.6 undecidable manual P 39 88.7445 50 0.62 38
IV.MCI.EHZ. 2020-12-16T05:43:55.70 0.3 undecidable manual P 127 93.4398 50 0.49 59
IV.MOMA.HHZ. 2020-12-16T05:43:54.91 0.1 undecidable manual P 342 93.1401 50 -0.26 83
IV.SMA1.EHN. 2020-12-16T05:43:53.24 0.3 undecidable manual P 26 77.4669 50 0.49 61
IV.PTQR.HHZ. 2020-12-16T05:43:52.71 0.6 undecidable manual S 87 39.9267 50 0.03 48
IV.ROM9.HNE. 2020-12-16T05:43:52.41 0.3 undecidable manual S 240 38.4282 50 0.11 71
IV.CAMP.HHE. 2020-12-16T05:43:52.14 0.6 undecidable manual P 34 71.4729 50 0.32 43
IT.RMMM.HGE. 2020-12-16T05:43:52.79 0.3 undecidable manual S 257 39.3273 50 0.25 69
IV.GUAR.HHZ. 2020-12-16T05:43:52.79 0.6 undecidable manual S 125 40.0266 50 0.06 48
IV.T0110.HHZ. 2020-12-16T05:43:52.35 0.3 undecidable manual P 70 74.9694 50 -0.02 68
IV.T1299.HNN. 2020-12-16T05:43:52.90 0.6 undecidable manual P 23 76.0683 50 0.37 42
IV.GAVE.EHZ. 2020-12-16T05:43:52.15 0.3 undecidable manual P 359 76.368 50 -0.43 62
IV.CESX.HHZ. 2020-12-16T05:43:51.88 0.3 undecidable manual P 338 72.2721 50 -0.08 67
IV.SAMA.EHZ. 2020-12-16T05:43:51.41 0.3 undecidable manual S 227 36.5412 50 -0.38 67
IV.ARRO.EHZ. 2020-12-16T05:43:50.50 0.3 undecidable manual P 349 64.9905 50 -0.33 65
IV.RDP.HHZ. 2020-12-16T05:43:50.70 0.3 undecidable manual S 212 31.9458 50 0.13 71
IV.LNSS.HNZ. 2020-12-16T05:43:50.64 0.3 undecidable manual P 9 67.1772 50 -0.52 61
IV.VIVA.HHZ. 2020-12-16T05:43:49.97 0.6 undecidable manual S 203 30.6471 50 -0.25 47
IV.GIUL.HHZ. 2020-12-16T05:43:49.02 0.3 undecidable manual P 150 56.7987 50 -0.54 62
IV.VVLD.HHZ. 2020-12-16T05:43:49.59 0.1 undecidable manual P 104 60.0954 50 -0.49 84
IV.LATB.EHZ. 2020-12-16T05:43:49.16 0.3 undecidable manual P 176 56.6988 50 -0.39 65
IV.LAV9.HNZ. 2020-12-16T05:43:47.69 1.0 undecidable manual P 207 40.4262 50 0.65 20
IV.ROM9.HNE. 2020-12-16T05:43:47.39 0.3 undecidable manual P 240 38.4282 50 0.65 61
IV.SRES.HHZ. 2020-12-16T05:43:47.16 0.6 undecidable manual P 308 42.3243 50 -0.17 46
IV.PTQR.HHZ. 2020-12-16T05:43:46.74 0.1 undecidable manual P 87 39.9267 50 -0.22 92
IV.MA9.HHN. 2020-12-16T05:43:46.18 0.3 undecidable manual P 219 33.6441 50 0.19 70
IV.VIVA.HHZ. 2020-12-16T05:43:46.06 0.1 undecidable manual P 203 30.6471 50 0.52 87
IV.SAMA.EHZ. 2020-12-16T05:43:46.36 0.3 undecidable manual P 227 36.5412 50 -0.08 72
IT.RMMM.HGE. 2020-12-16T05:43:46.63 0.3 undecidable manual P 257 39.3273 50 -0.25 69
IV.GUAR.HHZ. 2020-12-16T05:43:46.63 0.3 undecidable manual P 125 40.0266 50 -0.35 67
IV.RDP.HHZ. 2020-12-16T05:43:46.36 0.3 undecidable manual P 212 31.9458 50 0.62 63
IT.CSO1.HGE. 2020-12-16T05:43:46.36 0.6 undecidable manual S 53 17.6712 117 0.32 47
IT.MMP1.HGE. 2020-12-16T05:43:45.37 0.3 undecidable manual P 333 30.5472 50 -0.15 71
IV.RCAV.EHZ. 2020-12-16T05:43:45.86 0.6 undecidable manual S 172 17.5713 117 -0.14 49
IV.MTCE.HHZ. 2020-12-16T05:43:44.81 0.1 undecidable manual S 278 14.5743 122 -0.29 95
IV.RCAV.EHZ. 2020-12-16T05:43:43.31 0.1 undecidable manual P 172 17.5713 117 0.21 96
IT.CSO1.HGE. 2020-12-16T05:43:43.32 0.3 undecidable manual P 53 17.6712 117 0.2 72
IV.MTCE.HHZ. 2020-12-16T05:43:42.54 0.1 positive manual P 278 14.5743 122 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHE. ML:2.4 0.0024684055 0.3392 AML other m 2020-12-16T05:43:44.96
IV.MTCE.HHN. ML:2.0 0.00096606565 0.32 AML other m 2020-12-16T05:43:44.00
IV.RCAV.EHN. ML:1.9 0.0007917125499999999 0.1216 AML other m 2020-12-16T05:43:46.34
IV.VIVA.HHN. ML:2.3 0.0009121887 0.48 AML other m 2020-12-16T05:43:50.34
IV.RDP.HHN. ML:2.5 0.001327828 0.5376 AML other m 2020-12-16T05:43:51.43
IV.RDP.HHE. ML:2.2 0.0007572688000000001 0.8384 AML other m 2020-12-16T05:43:52.47
IV.GUAR.HHE. ML:2.0 0.00030998899999999994 0.6016 AML other m 2020-12-16T05:43:52.94
IV.GUAR.HHN. ML:2.0 0.00030498170000000003 0.4384 AML other m 2020-12-16T05:43:53.20
IV.PTQR.HHE. ML:1.9 0.0003066951 0.2208 AML other m 2020-12-16T05:43:53.58
IV.SRES.HHE. ML:1.6 0.00014377295000000002 1.3792 AML other m 2020-12-16T05:43:53.89
IV.SRES.HHN. ML:1.6 0.00012685825000000001 0.4 AML other m 2020-12-16T05:43:54.36
IV.LATB.EHN. ML:1.3 0.000044327775 0.4992 AML other m 2020-12-16T05:43:57.21
IV.GIUL.HHE. ML:1.6 0.000093701905 0.9184 AML other m 2020-12-16T05:43:58.19
IV.LATB.EHE. ML:1.6 0.000088328625 0.8192 AML other m 2020-12-16T05:43:58.39
IV.VVLD.HHE. ML:1.6 0.00008913656000000001 0.6784 AML other m 2020-12-16T05:43:58.74
IV.GIUL.HHN. ML:1.6 0.000079709355 0.4416 AML other m 2020-12-16T05:43:58.47
IV.VVLD.HNN. ML:1.8 0.000122847245 0.288 AML other m 2020-12-16T05:43:59.26
IV.CESX.HHE. ML:1.9 0.00011362369 0.4 AML other m 2020-12-16T05:44:03.03
IV.CESX.HHN. ML:1.8 0.000097026665 0.6016 AML other m 2020-12-16T05:44:03.25
IV.GAVE.HNE. ML:2.0 0.00016097065 0.4384 AML other m 2020-12-16T05:44:03.52
IV.GAVE.EHE. ML:2.0 0.00014529975 0.4192 AML other m 2020-12-16T05:44:03.52
IV.GAVE.EHN. ML:2.1 0.0001696878 0.3008 AML other m 2020-12-16T05:44:03.72
IV.VVLD.HHN. ML:2.0 0.0002185 0.54 AML other m 2020-12-16T05:44:05.71
IV.MOMA.HHE. ML:2.1 0.00014704325 0.64 AML other m 2020-12-16T05:44:08.51
IV.MOMA.HHN. ML:2.0 0.00012414155 0.6816 AML other m 2020-12-16T05:44:08.54
IV.MOMA.HNE. ML:2.3 0.00020151744999999998 0.6688 AML other m 2020-12-16T05:44:08.22
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
Waveforms Seismic signals in miniseed + resp format Download