Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 28-01-2021 and time 08:56:08 (Italy) in region 2 km NW Sambuci (RM)

A magnitude ML 2.2 earthquake occured in region: 2 km NW Sambuci (RM), on

  • 28-01-2021 07:56:08 (UTC)
  • 28-01-2021 08:56:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.0040, 12.9230 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
Sambuci RM 2 925 925
Saracinesco RM 3 185 1110
Vicovaro RM 3 4019 5129
Mandela RM 3 917 6046
Ciciliano RM 5 1336 7382
Castel Madama RM 5 7399 14781
Roccagiovine RM 6 263 15044
Anticoli Corrado RM 6 915 15959
Cineto Romano RM 6 601 16560
Roviano RM 7 1351 17911
San Polo dei Cavalieri RM 7 2992 20903
Marano Equo RM 8 779 21682
Licenza RM 8 1011 22693
Cerreto Laziale RM 8 1118 23811
Arsoli RM 9 1586 25397
Riofreddo RM 9 781 26178
Agosta RM 9 1765 27943
Gerano RM 10 1263 29206
Marcellina RM 10 7280 36486
Rocca Canterano RM 10 196 36682
Percile RM 10 255 36937
San Gregorio da Sassola RM 10 1619 38556
Oricola AQ 11 1244 39800
Vallinfreda RM 11 283 40083
Pisoniano RM 11 770 40853
Tivoli RM 11 56533 97386
Casape RM 11 744 98130
Canterano RM 12 351 98481
Cervara di Roma RM 12 455 98936
Rocca di Botte AQ 12 856 99792
Vivaro Romano RM 13 182 99974
Poli RM 13 2418 102392
Rocca Santo Stefano RM 13 975 103367
Monteflavio RM 14 1348 104715
San Vito Romano RM 14 3273 107988
Orvinio RI 14 405 108393
Palombara Sabina RM 15 13269 121662
Camerata Nuova RM 15 447 122109
Capranica Prenestina RM 16 351 122460
Pereto AQ 16 682 123142
Bellegra RM 16 2887 126029
Guidonia Montecelio RM 16 88673 214702
Turania RI 17 241 214943
Carsoli AQ 17 5396 220339
Subiaco RM 17 9074 229413
Gallicano nel Lazio RM 17 6334 235747
Castel San Pietro Romano RM 18 902 236649
Sant'Angelo Romano RM 18 5018 241667
Moricone RM 18 2650 244317
Rocca di Cave RM 18 377 244694
Pozzaglia Sabina RI 18 360 245054
Montorio Romano RM 18 1984 247038
Collalto Sabino RI 18 442 247480
Olevano Romano RM 18 6687 254167
Palestrina RM 18 21672 275839
Roiate RM 19 737 276576
Scandriglia RI 19 3108 279684
Genazzano RM 20 6036 285720
Affile RM 20 1548 287268
Zagarolo RM 20 17843 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)
55 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)
82 Km SE of Viterbo (67173 inhabitants)
94 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 2.2 2021-01-28
07:56:08		 42.0043 12.9232 10 2021-07-12
16:54:58		 Bollettino Sismico Italiano INGV 86992011
Reviewed
Rev100 		ML 2.3 2021-01-28
07:56:08		 42.0043 12.9165 10 2021-01-28
08:02:55		 Sala Sismica INGV-Roma 86646021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-28 07:56:08 ± 0.07
Latitude 42.0043 ± 0.0027
Longitude 12.9232 ± 0.0048
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86992011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 385
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 29
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 51
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.13580
Epicentral distance of station farthest from the epicenter (degree) 1.33100
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 47
Type of magnitude ML
Reference to an origin 86992011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-15 14:49:36

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 86646021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-28 08:02:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2021-01-28T07:56:36.76 0.6 undecidable manual S 342 93.24 50 0.86 34
IV.EL6.EHZ. 2021-01-28T07:56:33.04 0.3 undecidable manual P 6 147.741 50 0.47 53
IV.GAVE.EHZ. 2021-01-28T07:56:31.62 0.6 undecidable manual S 358 76.368 50 0.24 43
IV.LNSS.HHZ. 2021-01-28T07:56:29.90 0.6 undecidable manual S 8 67.0773 50 1 34
IV.MGAB.HHZ. 2021-01-28T07:56:28.68 0.3 undecidable manual P 327 120.6903 50 0.28 59
IV.MF5.EHZ. 2021-01-28T07:56:28.31 0.3 undecidable manual P 22 117.5934 50 0.38 58
IV.ARRO.EHZ. 2021-01-28T07:56:28.72 0.6 undecidable manual S 349 65.0904 50 0.36 43
IV.VVLD.HHZ. 2021-01-28T07:56:27.18 0.6 undecidable manual S 104 59.6958 50 0.25 44
IV.CESI.HHZ. 2021-01-28T07:56:26.85 0.3 undecidable manual P 359 111 50 -0.07 62
IV.GIUL.HHZ. 2021-01-28T07:56:26.04 0.6 undecidable manual S 151 56.5989 50 -0.06 46
IV.LATB.EHZ. 2021-01-28T07:56:26.37 0.6 undecidable manual S 177 56.6988 50 0.23 45
IV.FDMO.HHZ. 2021-01-28T07:56:26.79 0.6 undecidable manual P 7 115.2957 50 -0.79 34
IV.CERA.HHZ. 2021-01-28T07:56:25.15 0.3 undecidable manual P 116 101.2209 50 -0.25 61
IV.MOMA.HHZ. 2021-01-28T07:56:23.82 0.3 undecidable manual P 342 93.24 50 -0.37 61
IT.RMMM.HGE. 2021-01-28T07:56:22.06 0.6 undecidable manual S 257 39.8268 50 0.43 44
IV.T0110.HHZ. 2021-01-28T07:56:21.56 0.3 undecidable manual P 70 74.4699 50 0.26 64
IV.CESX.HHZ. 2021-01-28T07:56:21.13 0.3 undecidable manual P 338 72.4719 50 0.15 66
IV.PTQR.HHZ. 2021-01-28T07:56:21.85 0.6 undecidable manual S 87 39.4272 50 0.33 45
IV.GAVE.EHZ. 2021-01-28T07:56:21.10 0.1 undecidable manual P 358 76.368 50 -0.48 82
IV.SAMA.EHZ. 2021-01-28T07:56:21.03 0.6 undecidable manual S 228 36.9297 50 0.17 47
IV.SMA1.EHZ. 2021-01-28T07:56:21.76 0.3 undecidable manual P 26 77.2671 50 0.04 67
IV.GUAR.HHZ. 2021-01-28T07:56:21.68 0.6 undecidable manual S 126 39.7269 50 0.09 48
IV.CAMP.HHZ. 2021-01-28T07:56:20.79 0.3 undecidable manual P 34 71.1732 50 0.01 68
IV.ARRO.EHZ. 2021-01-28T07:56:19.73 0.1 undecidable manual P 349 65.0904 50 -0.11 90
IV.LNSS.HHZ. 2021-01-28T07:56:19.63 0.3 undecidable manual P 8 67.0773 50 -0.52 62
IV.FIAM.HHZ. 2021-01-28T07:56:19.32 0.6 undecidable manual S 29 33.3444 50 -0.57 43
IV.LATB.EHZ. 2021-01-28T07:56:18.05 0.1 undecidable manual P 177 56.6988 50 -0.5 84
IV.VIVA.HHZ. 2021-01-28T07:56:18.88 0.6 undecidable manual S 204 30.9468 50 -0.37 46
IV.GIUL.HHZ. 2021-01-28T07:56:18.27 0.1 undecidable manual P 151 56.5989 50 -0.26 89
IV.VVLD.HHZ. 2021-01-28T07:56:18.91 0.1 undecidable manual P 104 59.6958 50 -0.1 91
IT.MMP1.HGE. 2021-01-28T07:56:18.89 0.3 undecidable manual S 332 30.747 50 -0.31 69
IV.RMP.HHZ. 2021-01-28T07:56:18.48 0.6 undecidable manual S 220 27.9498 109 0.06 49
IV.RM33.EHZ. 2021-01-28T07:56:18.91 0.3 undecidable manual P 23 60.8946 50 -0.28 66
IV.ROM9.HNE. 2021-01-28T07:56:16.43 0.3 undecidable manual P 240 38.9277 50 0.62 62
IV.LAV9.HNZ. 2021-01-28T07:56:16.70 0.3 undecidable manual P 207 40.7259 50 0.62 62
IV.SRES.HHZ. 2021-01-28T07:56:16.33 0.3 undecidable manual P 307 42.624 50 -0.06 71
IT.RMMM.HGE. 2021-01-28T07:56:16.39 0.3 undecidable manual P 257 39.8268 50 0.44 66
IV.RCAV.EHZ. 2021-01-28T07:56:15.03 0.6 undecidable manual S 174 17.5713 118 -0.07 50
IV.SAMA.EHZ. 2021-01-28T07:56:15.28 0.3 undecidable manual P 228 36.9297 50 -0.22 70
IV.PTQR.HHZ. 2021-01-28T07:56:15.99 0.1 positive manual P 87 39.4272 50 0.11 95
IT.CSO1.HGE. 2021-01-28T07:56:15.32 0.6 undecidable manual S 52 17.2716 119 0.29 47
IV.GUAR.HHZ. 2021-01-28T07:56:15.76 0.3 undecidable manual P 126 39.7269 50 -0.17 70
IV.MA9.HHN. 2021-01-28T07:56:14.79 0.3 undecidable manual P 220 33.9438 50 -0.25 70
IV.RMP.HHZ. 2021-01-28T07:56:14.13 0.1 positive manual P 220 27.9498 109 0.03 98
IV.VIVA.HHZ. 2021-01-28T07:56:14.58 0.3 undecidable manual P 204 30.9468 50 0.01 74
IV.FIAM.HHZ. 2021-01-28T07:56:14.81 0.1 undecidable manual P 29 33.3444 50 -0.14 95
IV.MTCE.HHZ. 2021-01-28T07:56:13.97 0.6 undecidable manual S 278 15.0738 122 -0.39 47
IT.MMP1.HGE. 2021-01-28T07:56:13.94 0.3 undecidable manual P 332 30.747 50 -0.61 64
IT.CSO1.HGE. 2021-01-28T07:56:12.45 0.3 undecidable manual P 52 17.2716 119 0.31 71
IV.RCAV.EHZ. 2021-01-28T07:56:12.35 0.1 undecidable manual P 174 17.5713 118 0.17 97
IV.MTCE.HHZ. 2021-01-28T07:56:11.80 0.1 undecidable manual P 278 15.0738 122 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHE. ML:2.4 0.00279 0.3 AML other m 2021-01-28T07:56:14.78
IV.MTCE.HHN. ML:1.9 0.00076616345 0.3584 AML other m 2021-01-28T07:56:14.71
IV.RCAV.EHE. ML:2.3 0.0016072875 0.32 AML other m 2021-01-28T07:56:15.96
IV.RCAV.EHN. ML:2.3 0.0015919335000000002 0.4352 AML other m 2021-01-28T07:56:15.97
IV.RMP.HHN. ML:2.7 0.0027237485 0.6592 AML other m 2021-01-28T07:56:18.50
IV.RMP.HHE. ML:2.8 0.0031322004999999997 0.2816 AML other m 2021-01-28T07:56:19.08
IV.VIVA.HHE. ML:2.4 0.0012179734999999998 0.3776 AML other m 2021-01-28T07:56:19.75
IV.FIAM.HHE. ML:1.8 0.00029646615 0.3584 AML other m 2021-01-28T07:56:19.99
IV.FIAM.HHN. ML:2.0 0.00046111934999999997 0.8384 AML other m 2021-01-28T07:56:19.83
IV.VIVA.HHN. ML:2.5 0.0013667310000000002 0.224 AML other m 2021-01-28T07:56:19.95
IV.FIAM.HNN. ML:2.3 0.0008131249 0.8 AML other m 2021-01-28T07:56:19.85
IV.GUAR.HHE. ML:2.3 0.0006773133 0.384 AML other m 2021-01-28T07:56:22.22
IV.GUAR.HHN. ML:2.2 0.0006396391500000001 0.4224 AML other m 2021-01-28T07:56:22.50
IV.PTQR.HHN. ML:2.0 0.0003359492 0.2816 AML other m 2021-01-28T07:56:22.51
IV.PTQR.HHE. ML:2.2 0.0005260744000000001 0.256 AML other m 2021-01-28T07:56:22.55
IV.SRES.HHN. ML:1.9 0.0002606527 0.3584 AML other m 2021-01-28T07:56:24.11
IV.SRES.HHE. ML:1.9 0.00024421825 0.2752 AML other m 2021-01-28T07:56:24.39
IV.LATB.EHN. ML:1.2 0.00003579568 0.2816 AML other m 2021-01-28T07:56:26.73
IV.GIUL.HHE. ML:1.7 0.0001167373 0.3584 AML other m 2021-01-28T07:56:26.79
IV.LATB.EHE. ML:1.4 0.00005782174 1.0816 AML other m 2021-01-28T07:56:27.15
IV.GIUL.HHN. ML:2.0 0.00020565615 0.16 AML other m 2021-01-28T07:56:27.28
IV.VVLD.HHE. ML:2.1 0.00023764914999999998 0.2368 AML other m 2021-01-28T07:56:27.50
IV.VVLD.HNE. ML:2.2 0.0002993732 0.96 AML other m 2021-01-28T07:56:27.87
IV.VVLD.HNN. ML:2.0 0.00023372575000000001 0.2624 AML other m 2021-01-28T07:56:27.59
IV.VVLD.HHN. ML:2.2 0.00032074999999999996 0.32 AML other m 2021-01-28T07:56:28.13
IV.ARRO.EHN. ML:2.1 0.0002113792 0.2176 AML other m 2021-01-28T07:56:29.10
IV.ARRO.EHE. ML:2.0 0.00019503615000000002 0.704 AML other m 2021-01-28T07:56:29.11
IV.LNSS.HNN. ML:2.2 0.00025639639999999996 0.3776 AML other m 2021-01-28T07:56:30.37
IV.LNSS.HHN. ML:2.0 0.00020174025 0.384 AML other m 2021-01-28T07:56:30.37
IV.LNSS.HNE. ML:2.2 0.00029757214999999996 0.4352 AML other m 2021-01-28T07:56:31.09
IV.LNSS.HHE. ML:2.2 0.00028869105 0.4416 AML other m 2021-01-28T07:56:31.10
IV.CESX.HHE. ML:2.3 0.00033094639999999996 0.3584 AML other m 2021-01-28T07:56:32.30
IV.GAVE.HNN. ML:2.2 0.00021564585 0.48 AML other m 2021-01-28T07:56:32.43
IV.GAVE.HNE. ML:2.5 0.0004595553 0.48 AML other m 2021-01-28T07:56:32.21
IV.CESX.HHN. ML:2.4 0.000431 0.5 AML other m 2021-01-28T07:56:32.32
IV.CAMP.HHN. ML:1.8 0.00010403564500000001 0.9792 AML other m 2021-01-28T07:56:32.86
IV.GAVE.EHN. ML:2.6 0.0005960000000000001 0.28 AML other m 2021-01-28T07:56:32.72
IV.GAVE.EHE. ML:2.5 0.00044938955000000004 0.2624 AML other m 2021-01-28T07:56:32.80
IV.CAMP.HHE. ML:1.5 0.000053356245 0.4608 AML other m 2021-01-28T07:56:33.03
IV.MOMA.HHN. ML:2.4 0.00030042265 0.4032 AML other m 2021-01-28T07:56:37.57
IV.MOMA.HHE. ML:2.6 0.0004205 0.56 AML other m 2021-01-28T07:56:37.59
IV.MOMA.HNE. ML:2.6 0.000472 0.58 AML other m 2021-01-28T07:56:37.31
IV.MOMA.HNN. ML:2.4 0.00029216025 1.4656 AML other m 2021-01-28T07:56:37.39
IV.CESI.HHE. ML:2.1 0.00010817195 0.576 AML other m 2021-01-28T07:56:43.20
IV.CESI.HHN. ML:2.6 0.00036150000000000006 0.36 AML other m 2021-01-28T07:56:43.25
IV.FDMO.HHN. ML:2.0 0.000074050295 0.3392 AML other m 2021-01-28T07:56:44.27
IV.FDMO.HHE. ML:2.1 0.00009438199 0.2944 AML other m 2021-01-28T07:56:43.96
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