Earthquake with magnitude of ML 2.0 on date 23-12-2020 and time 01:14:40 (Italy) in region 2 km SE Vicovaro (RM)

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

  • 23-12-2020 00:14:40 (UTC)
  • 23-12-2020 01:14:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42, 12.92 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.

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
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
Marcellina RM 9 7280 31091
Arsoli RM 9 1586 32677
Riofreddo RM 10 781 33458
Agosta RM 10 1765 35223
San Gregorio da Sassola RM 10 1619 36842
Gerano RM 10 1263 38105
Percile RM 10 255 38360
Rocca Canterano RM 10 196 38556
Tivoli RM 11 56533 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
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
San Vito Romano RM 14 3273 121257
Orvinio RI 15 405 121662
Guidonia Montecelio RM 16 88673 210335
Capranica Prenestina RM 16 351 210686
Camerata Nuova RM 16 447 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 17 902 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
Collalto Sabino RI 19 442 269152
Olevano Romano RM 19 6687 275839
Roiate RM 19 737 276576
Scandriglia RI 19 3108 279684
Zagarolo RM 19 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)
50 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

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.0 2020-12-23
00:14:40
42 12.92 9 2021-02-26
14:56:14
Bollettino Sismico Italiano INGV 86175601
Reviewed
Rev100
ML 2.0 2020-12-23
00:14:40
42.01 12.93 7 2020-12-23
00:26:40
Sala Sismica INGV-Roma 85637831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-23 00:14:40 ± 0.08
Latitude 42.00 ± 0.00
Longitude 12.92 ± 0.01
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 86175601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 407
Semi-minor axis of confidence ellipse (meter) 365
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 31
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.1313
Epicentral distance of station farthest from the epicenter (degree) 1.08458
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 86175601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-27 17:19:13

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 85637831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-23 00:26:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2020-12-23T00:15:16.42 0.6 undecidable manual S 350 1.0558 50 1.38 25
IV.FDMO.HHZ. 2020-12-23T00:15:16.60 0.3 undecidable manual S 7 1.0396 50 2.02 24
IV.CESI.HHZ. 2020-12-23T00:15:15.31 0.6 undecidable manual S 359 1.0009 50 1.89 18
IV.MOMA.HHZ. 2020-12-23T00:15:09.74 0.3 undecidable manual S 342 0.84 50 1.1 46
IV.T0110.HHZ. 2020-12-23T00:15:04.57 0.6 undecidable manual S 70 0.6763 50 0.77 37
IV.CESX.HHZ. 2020-12-23T00:15:04.40 0.6 undecidable manual S 338 0.652 50 1.32 29
IV.GAVE.EHZ. 2020-12-23T00:15:04.49 0.3 undecidable manual S 359 0.6889 50 0.33 64
IV.POFI.HHZ. 2020-12-23T00:15:03.85 0.3 undecidable manual S 116 0.6574 50 0.61 60
IV.LRP.EHZ. 2020-12-23T00:15:02.21 0.3 undecidable manual S 125 0.6133 50 0.28 66
IV.LNSS.HHZ. 2020-12-23T00:15:02.01 0.3 undecidable manual S 9 0.6061 50 0.29 66
IV.MGAB.HHZ. 2020-12-23T00:15:01.64 0.3 undecidable manual P 327 1.0846 50 0.59 55
IV.ASSB.HHZ. 2020-12-23T00:15:00.31 0.3 undecidable manual P 350 1.0558 50 -0.24 60
IV.FDMO.HHZ. 2020-12-23T00:14:59.79 0.3 undecidable manual P 7 1.0396 50 -0.49 57
IV.VVLD.HHZ. 2020-12-23T00:14:59.90 0.3 undecidable manual S 104 0.5423 50 0.07 70
IV.CESI.HHZ. 2020-12-23T00:14:59.51 0.3 undecidable manual P 359 1.0009 50 -0.1 63
IV.MMO1.EHZ. 2020-12-23T00:14:58.37 0.3 undecidable manual P 19 0.9452 50 -0.28 61
IV.GIUL.HHZ. 2020-12-23T00:14:58.62 0.6 undecidable manual S 150 0.5117 50 -0.29 45
IV.MOMA.HHZ. 2020-12-23T00:14:56.73 0.1 undecidable manual P 342 0.84 50 -0.12 87
IV.NRCA.HHZ. 2020-12-23T00:14:56.45 0.3 undecidable manual P 10 0.8427 50 -0.45 61
IV.LAV9.HHZ. 2020-12-23T00:14:55.36 0.6 undecidable manual S 207 0.3633 50 0.82 39
IV.PTQR.HHZ. 2020-12-23T00:14:54.56 0.3 undecidable manual S 87 0.3597 50 0.13 72
IV.SRES.HHZ. 2020-12-23T00:14:54.27 0.3 undecidable manual S 308 0.3813 50 -0.79 59
IV.GUAR.HHZ. 2020-12-23T00:14:54.37 0.3 undecidable manual S 125 0.3606 50 -0.09 72
IV.T0110.HHZ. 2020-12-23T00:14:54.19 0.3 undecidable manual P 70 0.6763 50 0.14 67
IV.INTR.HHZ. 2020-12-23T00:14:54.97 0.3 undecidable manual P 89 0.7338 50 -0.07 67
IV.CESX.HHZ. 2020-12-23T00:14:53.32 0.3 undecidable manual P 338 0.652 50 -0.32 65
IV.GAVE.EHZ. 2020-12-23T00:14:53.71 0.1 undecidable manual P 359 0.6889 50 -0.56 81
IV.SAMA.EHZ. 2020-12-23T00:14:53.26 0.3 undecidable manual S 227 0.3283 50 -0.23 71
IV.POFI.HHZ. 2020-12-23T00:14:53.26 0.1 undecidable manual P 116 0.6574 50 -0.47 84
IV.LNSS.HHZ. 2020-12-23T00:14:52.32 0.1 undecidable manual P 9 0.6061 50 -0.53 83
IV.FIAM.HHZ. 2020-12-23T00:14:52.27 0.3 undecidable manual S 29 0.3031 50 -0.48 67
IV.RDP.HHZ. 2020-12-23T00:14:52.18 0.6 undecidable manual S 212 0.2878 105 -0.02 50
IV.LRP.EHZ. 2020-12-23T00:14:52.66 0.1 undecidable manual P 125 0.6133 50 -0.31 87
IV.VIVA.HHZ. 2020-12-23T00:14:52.23 0.6 undecidable manual S 203 0.2752 106 0.47 45
IV.VVLD.HHZ. 2020-12-23T00:14:51.41 0.1 positive manual P 104 0.5423 50 -0.35 88
IT.MMP1.HGE. 2020-12-23T00:14:51.44 0.6 undecidable manual S 333 0.2752 106 -0.32 47
IV.RMP.HHZ. 2020-12-23T00:14:51.14 0.6 undecidable manual S 219 0.2482 107 0.4 46
IV.GIUL.HHZ. 2020-12-23T00:14:50.81 0.1 undecidable manual P 150 0.5117 50 -0.42 87
IV.LAV9.HHZ. 2020-12-23T00:14:49.09 0.3 undecidable manual P 207 0.3633 50 0.38 68
IV.PTQR.HHZ. 2020-12-23T00:14:48.42 0.1 undecidable manual P 87 0.3597 50 -0.22 94
IT.RMMM.HGE. 2020-12-23T00:14:48.92 0.3 undecidable manual P 257 0.3543 50 0.38 68
IV.SRES.HHZ. 2020-12-23T00:14:48.36 0.1 undecidable manual P 308 0.3813 50 -0.65 83
IV.ROM9.HNE. 2020-12-23T00:14:48.79 0.3 undecidable manual P 240 0.3453 50 0.39 68
IV.GUAR.HHZ. 2020-12-23T00:14:48.48 0.3 undecidable manual P 125 0.3606 50 -0.18 71
IT.CSO1.HGZ. 2020-12-23T00:14:48.08 0.6 undecidable manual S 53 0.1601 116 0.49 46
IV.MA9.HHN. 2020-12-23T00:14:47.55 0.3 undecidable manual P 219 0.3022 50 -0.1 73
IV.VIVA.HHZ. 2020-12-23T00:14:47.02 0.6 undecidable manual P 203 0.2752 106 -0.09 49
IV.SAMA.EHZ. 2020-12-23T00:14:47.98 0.3 undecidable manual P 227 0.3283 50 -0.12 72
IV.RCAV.EHZ. 2020-12-23T00:14:47.63 0.3 undecidable manual S 172 0.1574 116 0.13 75
IV.FIAM.HHZ. 2020-12-23T00:14:47.38 0.1 undecidable manual P 29 0.3031 50 -0.3 93
IV.RDP.HHZ. 2020-12-23T00:14:47.40 0.3 undecidable manual P 212 0.2878 105 0.04 74
IT.MMP1.HGE. 2020-12-23T00:14:46.75 0.3 undecidable manual P 333 0.2752 106 -0.35 70
IV.MTCE.HHZ. 2020-12-23T00:14:46.54 0.3 undecidable manual S 279 0.1313 120 -0.05 76
IV.RMP.HHZ. 2020-12-23T00:14:46.61 0.3 undecidable manual P 219 0.2482 107 0.1 74
IT.CSO1.HGZ. 2020-12-23T00:14:45.20 0.1 undecidable manual P 53 0.1601 116 0.5 92
IV.MTCE.HHZ. 2020-12-23T00:14:44.25 0.1 undecidable manual P 279 0.1313 120 0.13 100
IV.RCAV.EHZ. 2020-12-23T00:14:44.81 0.6 undecidable manual P 172 0.1574 116 0.17 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RCAV.EHE. ML:2.2 0.00133 0.52 AML other m 2020-12-23T00:14:50.43
IV.RCAV.EHN. ML:2.1 0.001132 0.52 AML other m 2020-12-23T00:14:51.27
IV.RDP.HHN. ML:2.3 0.000975 0.44 AML other m 2020-12-23T00:14:53.30
IV.RMP.HHE. ML:2.5 0.001675 0.36 AML other m 2020-12-23T00:14:54.67
IV.PTQR.HHN. ML:2 0.0003845 0.32 AML other m 2020-12-23T00:14:55.08
IV.PTQR.HHE. ML:2.2 0.0005785 0.24 AML other m 2020-12-23T00:14:55.10
IV.VIVA.HHE. ML:2.2 0.000841 0.44 AML other m 2020-12-23T00:14:55.45
IV.FIAM.HHN. ML:1.7 0.000222 0.44 AML other m 2020-12-23T00:14:55.11
IV.RMP.HHN. ML:2.4 0.0015 0.26 AML other m 2020-12-23T00:14:55.93
IV.GUAR.HHE. ML:2.2 0.000541 0.92 AML other m 2020-12-23T00:14:56.36
IV.FIAM.HHE. ML:1.6 0.000187 0.6 AML other m 2020-12-23T00:14:56.39
IV.GUAR.HHN. ML:2 0.0003655 0.46 AML other m 2020-12-23T00:14:56.62
IV.RDP.HHE. ML:2.2 0.0007725 0.78 AML other m 2020-12-23T00:14:57.39
IV.SRES.HHE. ML:1.6 0.000127 1.04 AML other m 2020-12-23T00:14:57.59
IV.SRES.HHN. ML:1.6 0.0001335 0.32 AML other m 2020-12-23T00:14:57.79
IV.VIVA.HHN. ML:2.3 0.0010675 0.4 AML other m 2020-12-23T00:14:57.80
IV.VVLD.HHN. ML:1.9 0.0001785 0.32 AML other m 2020-12-23T00:15:00.73
IV.VVLD.HHE. ML:1.9 0.0001695 0.42 AML other m 2020-12-23T00:15:00.90
IV.LAV9.HHN. ML:2.3 0.0007615 0.42 AML other m 2020-12-23T00:15:01.03
IV.LAV9.HNN. ML:2.3 0.000746 0.42 AML other m 2020-12-23T00:15:01.03
IV.GIUL.HHN. ML:1.7 0.00011355 0.64 AML other m 2020-12-23T00:15:01.60
IV.LAV9.HNE. ML:2.4 0.0008 0.42 AML other m 2020-12-23T00:15:02.30
IV.LAV9.HHE. ML:2.3 0.000764 0.42 AML other m 2020-12-23T00:15:02.30
IV.LRP.EHE. ML:1.9 0.000126 0.14 AML other m 2020-12-23T00:15:02.50
IV.LRP.EHN. ML:1.4 4.115E-5 0.14 AML other m 2020-12-23T00:15:02.63
IV.CESX.HHE. ML:1.9 0.0001255 0.34 AML other m 2020-12-23T00:15:04.71
IV.GIUL.HHE. ML:1.7 0.0001075 0.48 AML other m 2020-12-23T00:15:05.40
IV.LNSS.HHE. ML:1.9 0.0001355 0.8 AML other m 2020-12-23T00:15:05.19
IV.GAVE.EHN. ML:2 0.000156 0.78 AML other m 2020-12-23T00:15:05.52
IV.POFI.HHN. ML:1.5 4.29E-5 0.36 AML other m 2020-12-23T00:15:06.30
IV.CESX.HHN. ML:1.9 0.000123 1.38 AML other m 2020-12-23T00:15:06.22
IV.POFI.HHE. ML:1.6 5.935E-5 0.2 AML other m 2020-12-23T00:15:06.80
IV.T0110.HHN. ML:2.1 0.00021 0.42 AML other m 2020-12-23T00:15:06.96
IV.T0110.HHE. ML:2 0.0001545 0.36 AML other m 2020-12-23T00:15:07.05
IV.LNSS.HHN. ML:1.9 0.000157 0.4 AML other m 2020-12-23T00:15:08.25
IV.GAVE.EHE. ML:2.1 0.0001755 0.62 AML other m 2020-12-23T00:15:09.81
IV.MOMA.HHE. ML:2.1 0.0001495 0.96 AML other m 2020-12-23T00:15:11.69
IV.INTR.HHE. ML:1.9 0.000112 0.42 AML other m 2020-12-23T00:15:12.72
IV.NRCA.HHE. ML:1.9 8.36E-5 0.18 AML other m 2020-12-23T00:15:12.63
IV.MOMA.HHN. ML:2 0.000112 0.3 AML other m 2020-12-23T00:15:12.68
IV.NRCA.HHN. ML:1.8 6.325E-5 0.56 AML other m 2020-12-23T00:15:14.56
IV.CESI.HHN. ML:2.1 0.000107 0.44 AML other m 2020-12-23T00:15:15.88
IV.INTR.HHN. ML:2.1 0.000168 1.5 AML other m 2020-12-23T00:15:17.90
IV.CESI.HHE. ML:1.9 7.145E-5 0.52 AML other m 2020-12-23T00:15:18.66
IV.ASSB.HHN. ML:1.8 4.545E-5 1.62 AML other m 2020-12-23T00:15:20.07
IV.MGAB.HHE. ML:2 7.64E-5 1.1 AML other m 2020-12-23T00:15:20.31
IV.FDMO.HHE. ML:1.7 4.14E-5 0.9 AML other m 2020-12-23T00:15:20.07
IV.MGAB.HHN. ML:1.8 4.995E-5 0.54 AML other m 2020-12-23T00:15:22.68
IV.FDMO.HHN. ML:1.6 3.585E-5 0.82 AML other m 2020-12-23T00:15:23.01
IV.ASSB.HHE. ML:1.8 5.165E-5 1.42 AML other m 2020-12-23T00:15:23.07
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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