Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 18-12-2020 and time 21:34:38 (Italy) in region 2 km SE Vicovaro (RM)

A magnitude ML 2.4 earthquake occured in region: 2 km SE Vicovaro (RM), on

  • 18-12-2020 20:34:38 (UTC)
  • 18-12-2020 21:34:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0060, 12.9150 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
Sambuci RM 3 925 4944
Mandela RM 3 917 5861
Saracinesco RM 3 185 6046
Castel Madama RM 5 7399 13445
Roccagiovine RM 5 263 13708
Ciciliano RM 5 1336 15044
San Polo dei Cavalieri RM 6 2992 18036
Anticoli Corrado RM 6 915 18951
Cineto Romano RM 7 601 19552
Roviano RM 7 1351 20903
Licenza RM 8 1011 21914
Marano Equo RM 9 779 22693
Cerreto Laziale RM 9 1118 23811
Marcellina RM 9 7280 31091
Arsoli RM 9 1586 32677
Riofreddo RM 10 781 33458
Percile RM 10 255 33713
Agosta RM 10 1765 35478
San Gregorio da Sassola RM 10 1619 37097
Gerano RM 10 1263 38360
Tivoli RM 11 56533 94893
Rocca Canterano RM 11 196 95089
Casape RM 11 744 95833
Vallinfreda RM 11 283 96116
Pisoniano RM 11 770 96886
Oricola AQ 12 1244 98130
Canterano RM 12 351 98481
Cervara di Roma RM 13 455 98936
Rocca di Botte AQ 13 856 99792
Vivaro Romano RM 13 182 99974
Poli RM 13 2418 102392
Monteflavio RM 14 1348 103740
Rocca Santo Stefano RM 14 975 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
Pereto AQ 17 682 211815
Bellegra RM 17 2887 214702
Gallicano nel Lazio RM 17 6334 221036
Turania RI 17 241 221277
Sant'Angelo Romano RM 17 5018 226295
Moricone RM 17 2650 228945
Montorio Romano RM 17 1984 230929
Carsoli AQ 17 5396 236325
Castel San Pietro Romano RM 18 902 237227
Subiaco RM 18 9074 246301
Pozzaglia Sabina RI 18 360 246661
Rocca di Cave RM 18 377 247038
Collalto Sabino RI 18 442 247480
Palestrina RM 19 21672 269152
Olevano Romano RM 19 6687 275839
Scandriglia RI 19 3108 278947
Roiate RM 19 737 279684
Zagarolo RM 20 17843 297527
Genazzano RM 20 6036 303563

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 2.4 2020-12-18
20:34:38		 42.0055 12.9147 10 2021-02-26
14:56:18		 Bollettino Sismico Italiano INGV 86901841
Reviewed
Rev100 		ML 2.4 2020-12-18
20:34:37		 42.0097 12.9208 9 2020-12-18
20:45:53		 Sala Sismica INGV-Roma 85527691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-18 20:34:38 ± 0.05
Latitude 42.0055 ± 0.0018
Longitude 12.9147 ± 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 86901841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 96
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
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) 48
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.12235
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 76
Type of magnitude ML
Reference to an origin 85527691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-18 20:45:53

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 76
Type of magnitude ML
Reference to an origin 86901841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-22 18:25:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHZ. 2020-12-18T20:35:42.21 3.0 undecidable manual Sn 0.51 0
IV.GAVE.EHZ. 2020-12-18T20:35:01.33 0.6 undecidable manual S 359 76.1682 50 0.26 43
IV.SACS.HHZ. 2020-12-18T20:34:59.34 1.0 undecidable manual P 319 124.5864 50 0.55 18
IV.MGAB.HHZ. 2020-12-18T20:34:58.45 0.3 undecidable manual P 327 120.1908 50 0.35 58
IV.FDMO.HHZ. 2020-12-18T20:34:57.30 0.3 undecidable manual P 7 115.1958 50 -0.05 62
IV.GIUL.HHZ. 2020-12-18T20:34:56.07 0.3 undecidable manual S 150 56.9985 50 0.12 68
IV.CESI.HHZ. 2020-12-18T20:34:56.73 0.3 undecidable manual P 360 110.9001 50 0.05 62
IV.VVLD.HHZ. 2020-12-18T20:34:56.76 0.6 undecidable manual S 104 60.3951 50 -0.09 46
IV.MMO1.EHZ. 2020-12-18T20:34:56.46 0.6 undecidable manual P 19 104.7174 50 0.73 35
IV.LATB.EHZ. 2020-12-18T20:34:55.96 0.3 undecidable manual S 176 56.8986 50 0.05 69
IV.CERA.HHZ. 2020-12-18T20:34:54.82 0.3 undecidable manual P 116 101.8203 50 -0.46 58
IV.MOMA.HHZ. 2020-12-18T20:34:53.86 0.1 undecidable manual P 342 92.9403 50 -0.05 86
IV.MCI.EHZ. 2020-12-18T20:34:53.81 0.6 undecidable manual P 127 93.7395 50 -0.22 42
IV.INTR.HHZ. 2020-12-18T20:34:52.30 0.1 undecidable manual P 89 81.5517 50 0.13 87
IV.GUAR.HHZ. 2020-12-18T20:34:51.68 0.6 undecidable manual S 125 40.3263 50 0.19 46
IV.BARO.HNZ. 2020-12-18T20:34:51.48 0.6 undecidable manual P 291 75.9684 50 0.18 43
IV.PTQR.HHZ. 2020-12-18T20:34:51.92 0.6 undecidable manual S 87 40.1265 50 0.5 43
IV.SRES.HHZ. 2020-12-18T20:34:51.73 1.0 undecidable manual S 308 42.0246 50 -0.22 23
IV.T0110.HHZ. 2020-12-18T20:34:51.18 0.3 undecidable manual P 70 75.1692 50 0.01 67
IV.TOLF.HHN. 2020-12-18T20:34:51.50 0.6 undecidable manual P 275 75.6687 50 0.26 43
IV.GAVE.EHZ. 2020-12-18T20:34:50.96 0.3 undecidable manual P 359 76.1682 50 -0.37 63
IV.SAMA.EHZ. 2020-12-18T20:34:50.64 0.6 undecidable manual S 227 36.4413 50 0.18 47
IV.POFI.HHZ. 2020-12-18T20:34:50.61 0.1 undecidable manual P 116 73.1712 50 -0.26 86
IV.CESX.HHZ. 2020-12-18T20:34:50.56 0.3 undecidable manual P 338 72.0723 50 -0.14 66
IV.LRP.EHZ. 2020-12-18T20:34:50.01 0.1 undecidable manual P 125 68.2761 50 -0.11 89
IV.ARRO.EHZ. 2020-12-18T20:34:49.64 0.1 undecidable manual P 349 64.7907 50 0.07 91
IV.FIAM.HHZ. 2020-12-18T20:34:49.61 0.3 undecidable manual S 30 33.5442 50 -0.07 72
IV.LNSS.HHZ. 2020-12-18T20:34:49.59 0.3 undecidable manual P 9 67.0773 50 -0.33 64
IV.RDP.HHZ. 2020-12-18T20:34:49.60 0.6 undecidable manual S 212 32.0457 50 0.34 46
IT.MMP1.HGZ. 2020-12-18T20:34:48.72 0.6 undecidable manual S 333 30.3474 50 -0.09 48
IV.LATB.EHZ. 2020-12-18T20:34:48.05 0.3 undecidable manual P 176 56.8986 50 -0.31 66
IV.GIUL.HHZ. 2020-12-18T20:34:48.16 0.1 undecidable manual P 150 56.9985 50 -0.22 89
IV.VIVA.HHZ. 2020-12-18T20:34:48.59 0.6 undecidable manual S 203 30.747 50 -0.33 46
IV.VVLD.HHZ. 2020-12-18T20:34:48.74 0.1 undecidable manual P 104 60.3951 50 -0.15 90
IV.RMP.HHZ. 2020-12-18T20:34:47.94 0.6 undecidable manual S 219 27.5502 50 -0.15 48
IV.SAMA.EHZ. 2020-12-18T20:34:45.36 0.1 undecidable manual P 227 36.4413 50 0.15 94
IV.GUAR.HHZ. 2020-12-18T20:34:45.63 0.3 undecidable manual P 125 40.3263 50 -0.17 70
IV.PTQR.HHZ. 2020-12-18T20:34:45.82 0.1 positive manual P 87 40.1265 50 0.05 95
IT.CSO1.HGZ. 2020-12-18T20:34:45.42 0.6 undecidable manual S 53 17.7711 119 0.31 47
IV.SRES.HHZ. 2020-12-18T20:34:45.84 0.1 undecidable manual P 308 42.0246 50 -0.22 92
IV.RDP.HHZ. 2020-12-18T20:34:44.73 0.3 undecidable manual P 212 32.0457 50 0.21 70
IV.FIAM.HHZ. 2020-12-18T20:34:44.66 0.1 undecidable manual P 30 33.5442 50 -0.1 95
IT.MMP1.HGZ. 2020-12-18T20:34:44.06 0.3 undecidable manual P 333 30.3474 50 -0.19 71
IV.VIVA.HHZ. 2020-12-18T20:34:44.63 0.1 undecidable manual P 203 30.747 50 0.31 92
IV.RCAV.EHZ. 2020-12-18T20:34:44.97 0.6 undecidable manual S 172 17.7711 119 -0.13 49
IV.RMP.HHZ. 2020-12-18T20:34:43.96 0.1 undecidable manual P 219 27.5502 50 0.12 96
IV.MTCE.HHZ. 2020-12-18T20:34:43.84 0.3 undecidable manual S 278 14.3745 125 -0.26 72
IV.RCAV.EHZ. 2020-12-18T20:34:42.19 0.3 undecidable manual P 172 17.7711 119 0.08 74
IT.CSO1.HGZ. 2020-12-18T20:34:42.41 0.3 undecidable manual P 53 17.7711 119 0.29 71
IV.MTCE.HHZ. 2020-12-18T20:34:41.57 0.1 negative manual P 278 14.3745 125 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHN. ML:2.2 0.0015094344500000002 0.32 AML other m 2020-12-18T20:34:44.75
IV.MTCE.HHE. ML:2.5 0.003282933 0.2944 AML other m 2020-12-18T20:34:45.47
IV.RCAV.EHN. ML:2.6 0.003320994 0.3584 AML other m 2020-12-18T20:34:47.74
IV.RCAV.EHE. ML:2.6 0.003258941 0.4608 AML other m 2020-12-18T20:34:48.29
IV.RDP.HHN. ML:2.9 0.003550829 0.5632 AML other m 2020-12-18T20:34:50.79
IV.VIVA.HHE. ML:2.8 0.002812359 0.2944 AML other m 2020-12-18T20:34:50.60
IV.FIAM.HNE. ML:2.7 0.0019780145 1.2288 AML other m 2020-12-18T20:34:51.37
IV.PTQR.HHE. ML:2.4 0.0008128531 0.32 AML other m 2020-12-18T20:34:52.47
IV.PTQR.HHN. ML:2.6 0.0013502089499999998 0.3456 AML other m 2020-12-18T20:34:52.50
IV.FIAM.HNN. ML:2.4 0.0012424460000000001 0.4864 AML other m 2020-12-18T20:34:52.47
IV.FIAM.HHN. ML:2.2 0.00062929525 0.4736 AML other m 2020-12-18T20:34:52.48
IV.VIVA.HHN. ML:2.8 0.00310404 0.3968 AML other m 2020-12-18T20:34:53.23
IV.FIAM.HHE. ML:2.1 0.0004903066 0.5632 AML other m 2020-12-18T20:34:53.46
IV.GUAR.HHE. ML:2.6 0.001414933 0.2432 AML other m 2020-12-18T20:34:53.82
IV.GUAR.HHN. ML:2.5 0.00106533065 1.5648 AML other m 2020-12-18T20:34:54.05
IV.SRES.HHN. ML:2.1 0.0004330867 0.4352 AML other m 2020-12-18T20:34:54.34
IV.RMP.HHE. ML:2.9 0.003955929 0.32 AML other m 2020-12-18T20:34:54.52
IV.RDP.HHE. ML:2.6 0.001902818 0.448 AML other m 2020-12-18T20:34:54.93
IV.SRES.HHE. ML:2.1 0.0004194717 0.3584 AML other m 2020-12-18T20:34:55.05
IV.RMP.HHN. ML:2.9 0.0043051485 0.32 AML other m 2020-12-18T20:34:55.35
IV.LATB.EHE. ML:1.8 0.00012981035 0.384 AML other m 2020-12-18T20:34:59.46
IV.LATB.EHN. ML:1.7 0.00012134249999999999 0.64 AML other m 2020-12-18T20:34:59.64
IV.ARRO.EHN. ML:2.2 0.00032100080000000005 0.192 AML other m 2020-12-18T20:35:01.53
IV.GAVE.HNN. ML:2.3 0.000305423 0.6016 AML other m 2020-12-18T20:35:02.19
IV.GAVE.HNE. ML:2.5 0.00045282714999999994 0.4736 AML other m 2020-12-18T20:35:02.27
IV.GAVE.EHE. ML:2.5 0.0004232839 0.4992 AML other m 2020-12-18T20:35:02.28
IV.GIUL.HHE. ML:2.2 0.0003105135 0.448 AML other m 2020-12-18T20:35:02.89
IV.GAVE.EHN. ML:2.5 0.0005040913 0.384 AML other m 2020-12-18T20:35:02.73
IV.GIUL.HHN. ML:2.2 0.00033294815 0.4608 AML other m 2020-12-18T20:35:03.33
IV.LNSS.HHE. ML:2.2 0.00030640555 1.488 AML other m 2020-12-18T20:35:03.74
IV.LRP.EHN. ML:1.7 0.00008617539000000001 0.32 AML other m 2020-12-18T20:35:04.29
IV.VVLD.HHN. ML:2.5 0.0006686764499999999 0.5632 AML other m 2020-12-18T20:35:04.81
IV.VVLD.HNN. ML:2.5 0.0006434733 0.5504 AML other m 2020-12-18T20:35:04.81
IV.T0110.HHN. ML:2.6 0.0006401989999999999 0.4096 AML other m 2020-12-18T20:35:04.35
IV.VVLD.HHE. ML:2.3 0.00042743915 1.6416 AML other m 2020-12-18T20:35:04.06
IV.VVLD.HNE. ML:2.3 0.00043650005 1.6288 AML other m 2020-12-18T20:35:04.07
IV.LNSS.HNE. ML:2.3 0.00034834454999999997 1.4112 AML other m 2020-12-18T20:35:05.71
IV.ARRO.EHE. ML:2.2 0.00028153355 0.576 AML other m 2020-12-18T20:35:05.02
IV.CESX.HHN. ML:2.4 0.00038512775 0.704 AML other m 2020-12-18T20:35:05.96
IV.LRP.EHE. ML:2.4 0.00038951375 0.2944 AML other m 2020-12-18T20:35:05.70
IV.CESX.HHE. ML:2.4 0.00044532899999999995 0.576 AML other m 2020-12-18T20:35:05.94
IV.POFI.HNN. ML:2.2 0.00024100095 0.4608 AML other m 2020-12-18T20:35:06.36
IV.LNSS.HHN. ML:2.4 0.00046654184999999997 0.3584 AML other m 2020-12-18T20:35:06.37
IV.POFI.HHN. ML:2.1 0.00018182864999999999 0.3328 AML other m 2020-12-18T20:35:07.47
IV.MOMA.HHN. ML:2.4 0.000284846 0.5248 AML other m 2020-12-18T20:35:07.59
IV.MOMA.HHE. ML:2.6 0.00045327339999999994 0.6016 AML other m 2020-12-18T20:35:07.63
IV.MOMA.HNE. ML:2.7 0.0005260804999999999 0.64 AML other m 2020-12-18T20:35:07.64
IV.LNSS.HNN. ML:2.4 0.00044558915 0.3968 AML other m 2020-12-18T20:35:08.91
IV.INTR.HHE. ML:2.5 0.000434058 1.5776 AML other m 2020-12-18T20:35:08.95
IV.INTR.HNE. ML:2.5 0.0004548238 1.5776 AML other m 2020-12-18T20:35:08.96
IV.T0110.HHE. ML:2.6 0.0006104920499999999 0.3584 AML other m 2020-12-18T20:35:09.40
IV.POFI.HNE. ML:2.2 0.00026717164999999997 1.3344 AML other m 2020-12-18T20:35:09.11
IV.POFI.HHE. ML:2.1 0.0001979013 1.3472 AML other m 2020-12-18T20:35:09.10
IV.MOMA.HNN. ML:2.4 0.0002487175 0.5632 AML other m 2020-12-18T20:35:11.14
IV.MCI.EHN. ML:2.6 0.000386103 0.2944 AML other m 2020-12-18T20:35:12.38
IV.SACS.HNE. ML:2.4 0.0001649337 0.6944 AML other m 2020-12-18T20:35:12.94
IV.MCI.EHE. ML:2.7 0.0005588753 1.808 AML other m 2020-12-18T20:35:13.96
IV.CESI.HHN. ML:2.6 0.00036858780000000003 0.4352 AML other m 2020-12-18T20:35:13.09
IV.CESI.HNN. ML:2.6 0.0003456054 0.4608 AML other m 2020-12-18T20:35:13.32
IV.INTR.HNN. ML:2.7 0.00070393515 0.6272 AML other m 2020-12-18T20:35:14.35
IV.INTR.HHN. ML:2.7 0.0007401597 0.6656 AML other m 2020-12-18T20:35:14.34
IV.CESI.HNE. ML:2.5 0.00025962924999999997 0.6144 AML other m 2020-12-18T20:35:15.53
IV.CESI.HHE. ML:2.4 0.000213231 1.3984 AML other m 2020-12-18T20:35:16.79
IV.MGAB.HNN. ML:2.4 0.0001713017 0.7296 AML other m 2020-12-18T20:35:16.86
IV.MGAB.HHN. ML:2.3 0.00013939400000000001 0.3456 AML other m 2020-12-18T20:35:17.86
IV.MGAB.HHE. ML:2.6 0.0002622559 0.576 AML other m 2020-12-18T20:35:17.73
IV.MGAB.HNE. ML:2.6 0.00026303735 0.5888 AML other m 2020-12-18T20:35:17.46
IV.FDMO.HHE. ML:2.2 0.000132488 0.4224 AML other m 2020-12-18T20:35:17.91
IV.CERA.HNN. ML:2.4 0.00023915510000000002 1.2448 AML other m 2020-12-18T20:35:19.77
IV.CERA.HHN. ML:2.4 0.00025605120000000005 1.2192 AML other m 2020-12-18T20:35:19.76
IV.FDMO.HHN. ML:2.2 0.00012928015 0.4736 AML other m 2020-12-18T20:35:20.44
IV.SACS.HHE. ML:2.1 0.00008614285 0.6656 AML other m 2020-12-18T20:35:20.76
IV.SACS.HNN. ML:2.4 0.00017771490000000002 0.7168 AML other m 2020-12-18T20:35:22.04
IV.SACS.HHN. ML:2.2 0.00012332775 1.1168 AML other m 2020-12-18T20:35:22.99
IV.CERA.HHE. ML:2.3 0.00020812435000000003 0.8192 AML other m 2020-12-18T20:35:24.25
IV.CERA.HNE. ML:2.3 0.0002091335 1.0656 AML other m 2020-12-18T20:35:26.37
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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