Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 19-12-2020 and time 09:29:30 (UTC) in region 2 km E Vicovaro (RM)

A magnitude ML 1.7 earthquake occured in region: 2 km E Vicovaro (RM), on

  • 19-12-2020 09:29:30 (UTC)
  • 19-12-2020 10:29:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0090, 12.9180 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 3 185 6046
Roccagiovine RM 5 263 6309
Castel Madama RM 5 7399 13708
Ciciliano RM 6 1336 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 7 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
Percile RM 10 255 33713
Agosta RM 10 1765 35478
Gerano RM 11 1263 36741
Rocca Canterano RM 11 196 36937
Vallinfreda RM 11 283 37220
San Gregorio da Sassola RM 11 1619 38839
Tivoli RM 11 56533 95372
Oricola AQ 11 1244 96616
Casape RM 12 744 97360
Pisoniano RM 12 770 98130
Canterano RM 12 351 98481
Vivaro Romano RM 13 182 98663
Cervara di Roma RM 13 455 99118
Rocca di Botte AQ 13 856 99974
Monteflavio RM 14 1348 101322
Poli RM 14 2418 103740
Orvinio RI 14 405 104145
Rocca Santo Stefano RM 14 975 105120
Palombara Sabina RM 14 13269 118389
San Vito Romano RM 15 3273 121662
Camerata Nuova RM 16 447 122109
Guidonia Montecelio RM 16 88673 210782
Pereto AQ 16 682 211464
Turania RI 16 241 211705
Capranica Prenestina RM 17 351 212056
Carsoli AQ 17 5396 217452
Moricone RM 17 2650 220102
Bellegra RM 17 2887 222989
Montorio Romano RM 17 1984 224973
Sant'Angelo Romano RM 17 5018 229991
Gallicano nel Lazio RM 17 6334 236325
Pozzaglia Sabina RI 17 360 236685
Subiaco RM 18 9074 245759
Collalto Sabino RI 18 442 246201
Castel San Pietro Romano RM 18 902 247103
Rocca di Cave RM 18 377 247480
Scandriglia RI 19 3108 250588
Palestrina RM 19 21672 272260
Olevano Romano RM 19 6687 278947
Roiate RM 19 737 279684
Zagarolo RM 20 17843 297527

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)
38 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)
65 Km SE of Terni (111501 inhabitants)
67 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 1.7 2020-12-19
09:29:30		 42.0093 12.9178 10 2021-02-26
14:56:14		 Bollettino Sismico Italiano INGV 86098361
Reviewed
Rev100 		ML 1.8 2020-12-19
09:29:30		 42.0118 12.9082 11 2020-12-19
09:44:39		 Sala Sismica INGV-Roma 85540001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-19 09:29:30 ± 0.04
Latitude 42.0093 ± 0.0018
Longitude 12.9178 ± 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 86098361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 238
Semi-minor axis of confidence ellipse (meter) 96
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
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 50
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.08098
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 21
Type of magnitude ML
Reference to an origin 86098361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-08 15:56:45

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 23
Type of magnitude ML
Reference to an origin 85540001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-19 09:44:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.VLO.HHZ. 2020-12-19T09:31:50.25 3.0 undecidable manual Sn 3.29 0
IV.ACATE.HNZ. 2020-12-19T09:31:41.37 3.0 undecidable manual Sn -3.76 0
IV.FREG.EHZ. 2020-12-19T09:31:22.00 3.0 undecidable manual Sn 3.82 0
IV.PCN.EHZ. 2020-12-19T09:31:16.73 3.0 undecidable manual Sn 3.75 0
IV.EUCT.HNZ. 2020-12-19T09:30:45.14 3.0 positive manual Pg 11.79 0
IV.EMSG.HHZ. 2020-12-19T09:30:35.27 3.0 positive manual Pn -1.6 0
IT.FIE.HGZ. 2020-12-19T09:30:32.60 3.0 undecidable manual Sn 0.08 0
IV.NDIM.HNZ. 2020-12-19T09:30:24.23 3.0 positive manual Pn 4.34 0
IV.GAVE.EHN. 2020-12-19T09:29:53.64 0.3 undecidable manual S 359 75.7686 50 0.27 68
IV.CESX.HHZ. 2020-12-19T09:29:52.47 1.0 undecidable manual S 338 71.7726 50 0.16 23
IV.ARRO.EHZ. 2020-12-19T09:29:50.63 0.3 undecidable manual S 349 64.3911 50 0.29 69
IV.MGAB.HHZ. 2020-12-19T09:29:50.64 0.6 undecidable manual P 327 119.991 50 0.16 42
IV.VVLD.HHZ. 2020-12-19T09:29:49.36 0.6 undecidable manual S 105 60.1953 50 0.14 48
IV.FDMO.HHZ. 2020-12-19T09:29:49.72 0.3 undecidable manual P 7 114.7962 50 0.03 66
IV.GIUL.HHZ. 2020-12-19T09:29:48.33 0.3 undecidable manual S 151 57.2982 50 -0.1 72
IV.LATB.EHN. 2020-12-19T09:29:48.42 0.3 undecidable manual S 176 57.2982 50 -0.02 74
IV.MOMA.HHZ. 2020-12-19T09:29:46.08 0.3 undecidable manual P 342 92.6406 50 -0.19 66
IV.SRES.HHZ. 2020-12-19T09:29:44.25 0.3 undecidable manual S 307 42.0246 50 -0.1 74
IV.GUAR.HHZ. 2020-12-19T09:29:44.05 0.6 undecidable manual S 126 40.3263 50 0.14 49
IV.SMA1.EHN. 2020-12-19T09:29:44.05 0.1 undecidable manual P 26 76.9674 50 0.19 91
IV.CAMP.HHE. 2020-12-19T09:29:43.07 0.1 undecidable manual P 34 70.9734 50 0.14 93
IV.PTQR.HHZ. 2020-12-19T09:29:43.59 0.3 undecidable manual S 88 39.8268 50 -0.18 74
IV.T1299.HNN. 2020-12-19T09:29:43.58 0.6 undecidable manual P 23 75.4689 50 -0.05 47
IV.SAMA.EHZ. 2020-12-19T09:29:43.20 0.6 undecidable manual S 227 36.9297 50 0.19 49
IV.CESX.HHZ. 2020-12-19T09:29:43.07 0.3 undecidable manual P 338 71.7726 50 0.01 72
IV.GAVE.EHN. 2020-12-19T09:29:43.52 0.6 undecidable manual P 359 75.7686 50 -0.16 46
IV.RDP.HHZ. 2020-12-19T09:29:42.05 0.6 undecidable manual S 212 32.5452 50 0.23 49
IV.ARRO.EHZ. 2020-12-19T09:29:41.89 0.1 undecidable manual P 349 64.3911 50 -0.04 97
IT.MMP1.HGE. 2020-12-19T09:29:41.01 0.3 undecidable manual S 332 30.0477 50 -0.15 75
IV.FIAM.HHZ. 2020-12-19T09:29:41.84 0.3 undecidable manual S 30 33.0447 50 -0.12 75
IV.LNSS.HNZ. 2020-12-19T09:29:41.96 0.3 undecidable manual P 9 66.5778 50 -0.3 68
IV.GIUL.HHZ. 2020-12-19T09:29:40.56 0.3 undecidable manual P 151 57.2982 50 -0.27 70
IV.LATB.EHN. 2020-12-19T09:29:40.49 0.1 undecidable manual P 176 57.2982 50 -0.34 92
IV.VVLD.HHZ. 2020-12-19T09:29:40.98 0.6 undecidable manual P 105 60.1953 50 -0.3 46
IV.PTQR.HHZ. 2020-12-19T09:29:38.22 0.1 undecidable manual P 88 39.8268 50 0.09 100
IV.SRES.HHZ. 2020-12-19T09:29:38.19 0.3 undecidable manual P 307 42.0246 50 -0.28 72
IV.GUAR.HHZ. 2020-12-19T09:29:38.00 0.1 undecidable manual P 126 40.3263 50 -0.22 97
IV.SAMA.EHZ. 2020-12-19T09:29:38.02 0.6 undecidable manual P 227 36.9297 50 0.32 48
IV.LAV9.HNZ. 2020-12-19T09:29:38.55 0.3 undecidable manual P 206 41.0256 50 0.24 73
IV.VIVA.HHZ. 2020-12-19T09:29:37.21 0.6 undecidable manual P 203 31.2465 50 0.4 48
IV.RCAV.EHE. 2020-12-19T09:29:37.50 0.3 undecidable manual S 173 18.1707 119 -0.11 78
IV.RDP.HHZ. 2020-12-19T09:29:37.34 0.3 undecidable manual P 212 32.5452 50 0.33 72
IT.CSO1.HGE. 2020-12-19T09:29:37.52 0.3 undecidable manual S 54 17.2716 120 0.16 77
IT.MMP1.HGE. 2020-12-19T09:29:36.54 0.3 undecidable manual P 332 30.0477 50 -0.09 76
IV.MTCE.HHZ. 2020-12-19T09:29:36.28 0.3 undecidable manual S 276 14.5743 124 -0.27 75
IV.FIAM.HHZ. 2020-12-19T09:29:36.93 0.1 undecidable manual P 30 33.0447 50 -0.16 100
IV.RMP.HHZ. 2020-12-19T09:29:36.41 0.3 undecidable manual P 219 28.0497 50 0.09 77
IT.CSO1.HGE. 2020-12-19T09:29:34.73 0.1 undecidable manual P 54 17.2716 120 0.3 100
IV.RCAV.EHE. 2020-12-19T09:29:34.62 0.3 undecidable manual P 173 18.1707 119 0.05 79
IV.MTCE.HHZ. 2020-12-19T09:29:33.97 0.3 undecidable manual P 276 14.5743 124 0 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHE. ML:2.3 0.0020524545 0.3008 AML other m 2020-12-19T09:29:36.56
IV.MTCE.HHN. ML:1.9 0.000836527 0.1408 AML other m 2020-12-19T09:29:36.83
IV.PTQR.HHN. ML:1.8 0.00021368694999999999 0.6592 AML other m 2020-12-19T09:29:44.75
IV.FIAM.HHN. ML:1.7 0.00020435990000000002 0.3584 AML other m 2020-12-19T09:29:45.31
IV.FIAM.HNN. ML:1.9 0.00035278854999999995 0.3584 AML other m 2020-12-19T09:29:45.32
IV.PTQR.HHE. ML:1.7 0.0001732022 0.2368 AML other m 2020-12-19T09:29:45.61
IV.GUAR.HHE. ML:1.9 0.0002630921 1.7376 AML other m 2020-12-19T09:29:46.06
IV.FIAM.HHE. ML:1.6 0.0001603273 0.48 AML other m 2020-12-19T09:29:47.31
IV.GUAR.HHN. ML:1.8 0.00020544004999999997 0.256 AML other m 2020-12-19T09:29:47.72
IV.VVLD.HHE. ML:1.6 0.000076494985 0.3392 AML other m 2020-12-19T09:29:52.30
IV.GIUL.HHE. ML:1.5 0.000074669245 0.4416 AML other m 2020-12-19T09:29:53.39
IV.GIUL.HHN. ML:1.5 0.000069003485 0.3584 AML other m 2020-12-19T09:29:54.80
IV.VVLD.HHN. ML:1.7 0.00009807343 0.7424 AML other m 2020-12-19T09:29:57.43
IV.CESX.HHN. ML:1.8 0.00010597099999999999 0.3776 AML other m 2020-12-19T09:29:58.20
IV.CESX.HHE. ML:1.8 0.00009245977 0.32 AML other m 2020-12-19T09:29:59.41
IV.MOMA.HHE. ML:1.8 0.00006314436500000001 0.4992 AML other m 2020-12-19T09:30:00.92
IV.MOMA.HHN. ML:1.8 0.000069343505 0.4032 AML other m 2020-12-19T09:30:03.64
IV.FDMO.HHE. ML:1.7 0.000040061555 0.4032 AML other m 2020-12-19T09:30:07.44
IV.MGAB.HHE. ML:2.0 0.00007473551 1.52 AML other m 2020-12-19T09:30:10.01
IV.MGAB.HHN. ML:1.7 0.000033942730000000005 0.2432 AML other m 2020-12-19T09:30:10.79
IV.FDMO.HHN. ML:1.5 0.000027341225 1.5584 AML other m 2020-12-19T09:30:12.79
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