Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 22-01-2021 and time 20:34:07 (Italy) in region 2 km SE Vicovaro (RM)

A magnitude ML 2.0 earthquake occured in region: 2 km SE Vicovaro (RM), on

  • 22-01-2021 19:34:07 (UTC)
  • 22-01-2021 20:34:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0030, 12.9140 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
Saracinesco RM 3 185 5129
Mandela RM 3 917 6046
Castel Madama RM 5 7399 13445
Ciciliano RM 5 1336 14781
Roccagiovine RM 6 263 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
Cerreto Laziale RM 9 1118 23032
Marano Equo RM 9 779 23811
Marcellina RM 9 7280 31091
Arsoli RM 10 1586 32677
Riofreddo RM 10 781 33458
San Gregorio da Sassola RM 10 1619 35077
Agosta RM 10 1765 36842
Gerano RM 10 1263 38105
Percile RM 10 255 38360
Tivoli RM 10 56533 94893
Rocca Canterano RM 11 196 95089
Casape RM 11 744 95833
Pisoniano RM 11 770 96603
Vallinfreda RM 11 283 96886
Oricola AQ 12 1244 98130
Canterano RM 12 351 98481
Cervara di Roma RM 13 455 98936
Poli RM 13 2418 101354
Rocca di Botte AQ 13 856 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 15 405 118389
San Vito Romano RM 15 3273 121662
Guidonia Montecelio RM 15 88673 210335
Capranica Prenestina RM 16 351 210686
Camerata Nuova RM 16 447 211133
Bellegra RM 17 2887 214020
Gallicano nel Lazio RM 17 6334 220354
Pereto AQ 17 682 221036
Sant'Angelo Romano RM 17 5018 226054
Turania RI 17 241 226295
Moricone RM 17 2650 228945
Castel San Pietro Romano RM 17 902 229847
Carsoli AQ 18 5396 235243
Rocca di Cave RM 18 377 235620
Montorio Romano RM 18 1984 237604
Subiaco RM 18 9074 246678
Pozzaglia Sabina RI 18 360 247038
Palestrina RM 18 21672 268710
Olevano Romano RM 19 6687 275397
Collalto Sabino RI 19 442 275839
Roiate RM 19 737 276576
Scandriglia RI 19 3108 279684
Zagarolo RM 19 17843 297527
Genazzano RM 20 6036 303563

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 NE of Velletri (53303 inhabitants)
38 Km E of Roma (2864731 inhabitants)
50 Km NE of Pomezia (62966 inhabitants)
50 Km NE of Aprilia (73446 inhabitants)
56 Km SW of L'Aquila (69753 inhabitants)
59 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 2.0 2021-01-22
19:34:07		 42.003 12.9142 10 2021-07-12
16:55:01		 Bollettino Sismico Italiano INGV 87945361
Reviewed
Rev100 		Md 1.8 2021-01-22
19:34:07		 42.0128 12.9193 8 2021-03-09
14:34:38		 Sala Sismica INGV-Roma 86469631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-22 19:34:07 ± 0.06
Latitude 42.0030 ± 0.0027
Longitude 12.9142 ± 0.0048
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 87945361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 345
Semi-minor axis of confidence ellipse (meter) 157
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
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 56
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.12415
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 87945361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-09 14:34:01

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 86469631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-22 19:41:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPNC.HHZ. 2021-01-22T19:36:06.05 3.0 undecidable manual Sn -2.44 0
IV.MILZ.HHZ. 2021-01-22T19:35:57.95 3.0 undecidable manual Sn -6.94 0
IV.MSRU.HHZ. 2021-01-22T19:35:17.76 3.0 undecidable manual Pn 3.7 0
IV.GIZZ.HHZ. 2021-01-22T19:35:10.32 3.0 undecidable manual Pn 2.06 0
IV.PTRJ.HNZ. 2021-01-22T19:34:51.21 3.0 undecidable manual S 0.81 0
IV.ARVD.HHZ. 2021-01-22T19:34:49.87 3.0 undecidable manual S 1.54 0
IV.MTMR.HNZ. 2021-01-22T19:34:44.09 3.0 undecidable manual Pg 5.08 0
IV.APRC.HHZ. 2021-01-22T19:34:41.54 3.0 undecidable manual Pg 5.49 0
IV.RIBO.EHZ.01 2021-01-22T19:34:40.80 3.0 undecidable manual Pn 0.72 0
IV.SACS.HHE. 2021-01-22T19:34:29.69 1.0 undecidable manual P 319 124.7862 50 1.08 14
IV.PTRJ.HNZ. 2021-01-22T19:34:28.86 3.0 positive manual P -2.32 0
IV.MGAB.HHZ. 2021-01-22T19:34:28.33 0.3 undecidable manual P 327 120.3906 50 0.4 57
IV.ARRO.EHZ. 2021-01-22T19:34:28.31 0.6 undecidable manual S 349 65.0904 50 0.4 42
IV.ASSB.HHN. 2021-01-22T19:34:27.39 0.3 undecidable manual P 350 117.1938 50 -0.05 61
IV.FDMO.HHN. 2021-01-22T19:34:27.32 0.3 undecidable manual P 7 115.4955 50 0.14 61
IV.VVLD.HHZ. 2021-01-22T19:34:26.89 0.6 undecidable manual S 104 60.3951 50 0.23 44
IV.CESI.HHE. 2021-01-22T19:34:26.53 0.1 undecidable manual P 360 111.0999 50 0.02 83
IV.EL6.EHZ. 2021-01-22T19:34:25.97 3.0 undecidable manual P -0.76 0
IV.GIUL.HHZ. 2021-01-22T19:34:25.85 1.0 undecidable manual S 150 56.7987 50 0.14 23
IV.LATB.EHZ. 2021-01-22T19:34:25.60 0.6 undecidable manual S 176 56.5989 50 -0.05 46
IV.NRCA.HHZ. 2021-01-22T19:34:23.34 0.3 undecidable manual P 10 93.5397 50 -0.46 59
IV.MOMA.HNZ. 2021-01-22T19:34:23.83 0.3 undecidable manual P 343 93.24 50 0.08 64
IV.T1299.HNN. 2021-01-22T19:34:21.98 0.6 undecidable manual P 23 76.2681 50 0.84 35
IV.SRES.HHN. 2021-01-22T19:34:21.42 1.0 undecidable manual S 308 42.2244 50 -0.38 22
IV.TOLF.HHN. 2021-01-22T19:34:21.93 0.3 undecidable manual P 275 75.5688 50 0.9 52
IV.PTQR.HHZ. 2021-01-22T19:34:21.67 0.6 undecidable manual S 87 40.1265 50 0.41 44
IV.GUAR.HNN. 2021-01-22T19:34:21.47 0.6 undecidable manual S 125 40.2264 50 0.19 46
IV.CAMP.HHE. 2021-01-22T19:34:20.85 0.6 undecidable manual P 34 71.6727 50 0.42 41
IV.CESX.HHE. 2021-01-22T19:34:20.53 0.3 undecidable manual P 338 72.372 50 0 68
IV.SAMA.EHZ. 2021-01-22T19:34:20.15 0.6 undecidable manual S 227 36.2415 50 -0.08 48
IV.POFI.HNE. 2021-01-22T19:34:20.30 0.1 undecidable manual P 115 73.1712 50 -0.35 84
IV.LRP.EHN. 2021-01-22T19:34:19.73 0.6 undecidable manual P 125 68.1762 50 -0.16 44
IV.ARRO.EHZ. 2021-01-22T19:34:19.49 0.3 undecidable manual P 349 65.0904 50 0.08 68
IV.RDP.HHZ. 2021-01-22T19:34:19.21 0.6 undecidable manual S 212 31.746 50 0.19 47
IV.FIAM.HHZ. 2021-01-22T19:34:19.44 0.6 undecidable manual S 30 33.8439 50 -0.13 47
IV.LNSS.HNZ. 2021-01-22T19:34:19.55 0.3 undecidable manual P 9 67.377 50 -0.21 66
IV.VIVA.HHN. 2021-01-22T19:34:18.87 0.6 undecidable manual S 203 30.4473 50 0.19 47
IT.MMP1.HGE. 2021-01-22T19:34:18.58 0.6 undecidable manual S 334 30.5472 50 -0.12 48
IV.RM33.HNE. 2021-01-22T19:34:18.68 0.3 undecidable manual P 24 61.2942 50 -0.15 67
IV.VVLD.HHZ. 2021-01-22T19:34:18.40 0.3 undecidable manual P 104 60.3951 50 -0.28 65
IV.GIUL.HHZ. 2021-01-22T19:34:17.92 0.3 undecidable manual P 150 56.7987 50 -0.21 67
IV.LATB.EHZ. 2021-01-22T19:34:17.71 0.3 undecidable manual P 176 56.5989 50 -0.39 64
IV.GUAR.HNN. 2021-01-22T19:34:15.30 0.3 undecidable manual P 125 40.2264 50 -0.28 68
IV.SAMA.EHZ. 2021-01-22T19:34:15.05 0.3 undecidable manual P 227 36.2415 50 0.08 71
IV.SRES.HHN. 2021-01-22T19:34:15.51 0.1 undecidable manual P 308 42.2244 50 -0.37 88
IV.PTQR.HHZ. 2021-01-22T19:34:15.48 0.1 undecidable manual P 87 40.1265 50 -0.09 94
IT.CSO1.HGZ. 2021-01-22T19:34:15.04 0.6 undecidable manual S 53 17.9709 118 0.16 48
IV.FIAM.HHZ. 2021-01-22T19:34:14.46 0.3 undecidable manual P 30 33.8439 50 -0.13 71
IV.VIVA.HHN. 2021-01-22T19:34:14.07 0.6 undecidable manual P 203 30.4473 50 0 49
IV.RDP.HHZ. 2021-01-22T19:34:14.60 0.6 undecidable manual P 212 31.746 50 0.33 45
IV.RCAV.EHZ. 2021-01-22T19:34:14.80 0.3 undecidable manual S 172 17.4714 119 0.07 74
IV.MTCE.HHZ. 2021-01-22T19:34:13.45 0.6 undecidable manual S 279 14.3745 124 -0.35 47
IT.MMP1.HGE. 2021-01-22T19:34:13.67 0.3 undecidable manual P 334 30.5472 50 -0.41 67
IT.CSO1.HGZ. 2021-01-22T19:34:12.10 0.3 undecidable manual P 53 17.9709 118 0.22 72
IV.RCAV.EHZ. 2021-01-22T19:34:11.94 0.1 undecidable manual P 172 17.4714 119 0.14 97
IV.MTCE.HHZ. 2021-01-22T19:34:11.24 0.1 undecidable manual P 279 14.3745 124 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.8 0.00025926725 0.4096 AML other m 2021-01-22T19:34:20.87
IV.PTQR.HHN. ML:2.0 0.000384 0.3 AML other m 2021-01-22T19:34:22.38
IV.PTQR.HHE. ML:2.0 0.00035850000000000004 0.4 AML other m 2021-01-22T19:34:23.50
IV.FIAM.HHE. ML:1.7 0.00022600000000000002 1.4 AML other m 2021-01-22T19:34:24.92
IV.ARRO.EHN. ML:1.9 0.0001622123 0.32 AML other m 2021-01-22T19:34:30.00
IV.VVLD.HHE. ML:1.8 0.00012028187500000001 0.3712 AML other m 2021-01-22T19:34:27.23
IV.ARRO.EHE. ML:1.9 0.00013351740000000002 0.2048 AML other m 2021-01-22T19:34:30.19
IV.VVLD.HHN. ML:2.0 0.0001856365 0.4992 AML other m 2021-01-22T19:34:35.92
IV.FIAM.HNN. ML:2.1 0.0005014459 0.6912 AML other m 2021-01-22T19:34:22.18
IV.VVLD.HNN. ML:2.0 0.00021468814999999999 0.5504 AML other m 2021-01-22T19:34:36.19
IV.VVLD.HNE. ML:2.0 0.00022141254999999998 0.7424 AML other m 2021-01-22T19:34:33.19
IV.GAVE.HNE. ML:2.5 0.00044659750000000003 0.2176 AML other m 2021-01-22T19:34:32.56
IV.GAVE.EHE. ML:2.5 0.00041895815000000003 0.1792 AML other m 2021-01-22T19:34:32.57
IV.GAVE.EHN. ML:2.5 0.00046085866000000004 0.5632 AML other m 2021-01-22T19:34:32.47
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