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) 42.004, 12.923 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.

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
Vallinfreda RM 11 283 38839
Oricola AQ 11 1244 40083
Pisoniano RM 11 770 40853
Casape RM 11 744 41597
Tivoli RM 11 56533 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
Guidonia Montecelio RM 16 88673 211815
Bellegra RM 16 2887 214702
Turania RI 17 241 214943
Carsoli AQ 17 5396 220339
Gallicano nel Lazio RM 17 6334 226673
Subiaco RM 17 9074 235747
Rocca di Cave RM 18 377 236124
Sant'Angelo Romano RM 18 5018 241142
Castel San Pietro Romano RM 18 902 242044
Moricone RM 18 2650 244694
Montorio Romano RM 18 1984 246678
Pozzaglia Sabina RI 18 360 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

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
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
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) 0.1358
Epicentral distance of station farthest from the epicenter (degree) 1.331
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:2.3

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

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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2021-01-28T07:56:36.76 0.6 undecidable manual S 342 0.84 50 0.86 34
IV.EL6.EHZ. 2021-01-28T07:56:33.04 0.3 undecidable manual P 6 1.331 50 0.47 53
IV.GAVE.EHZ. 2021-01-28T07:56:31.62 0.6 undecidable manual S 358 0.688 50 0.24 43
IV.LNSS.HHZ. 2021-01-28T07:56:29.90 0.6 undecidable manual S 8 0.6043 50 1 34
IV.MGAB.HHZ. 2021-01-28T07:56:28.68 0.3 undecidable manual P 327 1.0873 50 0.28 59
IV.MF5.EHZ. 2021-01-28T07:56:28.31 0.3 undecidable manual P 22 1.0594 50 0.38 58
IV.ARRO.EHZ. 2021-01-28T07:56:28.72 0.6 undecidable manual S 349 0.5864 50 0.36 43
IV.VVLD.HHZ. 2021-01-28T07:56:27.18 0.6 undecidable manual S 104 0.5378 50 0.25 44
IV.LATB.EHZ. 2021-01-28T07:56:26.37 0.6 undecidable manual S 177 0.5108 50 0.23 45
IV.FDMO.HHZ. 2021-01-28T07:56:26.79 0.6 undecidable manual P 7 1.0387 50 -0.79 34
IV.GIUL.HHZ. 2021-01-28T07:56:26.04 0.6 undecidable manual S 151 0.5099 50 -0.06 46
IV.CESI.HHZ. 2021-01-28T07:56:26.85 0.3 undecidable manual P 359 1 50 -0.07 62
IV.CERA.HHZ. 2021-01-28T07:56:25.15 0.3 undecidable manual P 116 0.9119 50 -0.25 61
IV.MOMA.HHZ. 2021-01-28T07:56:23.82 0.3 undecidable manual P 342 0.84 50 -0.37 61
IT.RMMM.HGE. 2021-01-28T07:56:22.06 0.6 undecidable manual S 257 0.3588 50 0.43 44
IV.PTQR.HHZ. 2021-01-28T07:56:21.85 0.6 undecidable manual S 87 0.3552 50 0.33 45
IV.CESX.HHZ. 2021-01-28T07:56:21.13 0.3 undecidable manual P 338 0.6529 50 0.15 66
IV.SAMA.EHZ. 2021-01-28T07:56:21.03 0.6 undecidable manual S 228 0.3327 50 0.17 47
IV.GAVE.EHZ. 2021-01-28T07:56:21.10 0.1 undecidable manual P 358 0.688 50 -0.48 82
IV.SMA1.EHZ. 2021-01-28T07:56:21.76 0.3 undecidable manual P 26 0.6961 50 0.04 67
IV.GUAR.HHZ. 2021-01-28T07:56:21.68 0.6 undecidable manual S 126 0.3579 50 0.09 48
IV.T0110.HHZ. 2021-01-28T07:56:21.56 0.3 undecidable manual P 70 0.6709 50 0.26 64
IV.CAMP.HHZ. 2021-01-28T07:56:20.79 0.3 undecidable manual P 34 0.6412 50 0.01 68
IV.ARRO.EHZ. 2021-01-28T07:56:19.73 0.1 undecidable manual P 349 0.5864 50 -0.11 90
IV.FIAM.HHZ. 2021-01-28T07:56:19.32 0.6 undecidable manual S 29 0.3004 50 -0.57 43
IV.LNSS.HHZ. 2021-01-28T07:56:19.63 0.3 undecidable manual P 8 0.6043 50 -0.52 62
IT.MMP1.HGE. 2021-01-28T07:56:18.89 0.3 undecidable manual S 332 0.277 50 -0.31 69
IV.VVLD.HHZ. 2021-01-28T07:56:18.91 0.1 undecidable manual P 104 0.5378 50 -0.1 91
IV.RMP.HHZ. 2021-01-28T07:56:18.48 0.6 undecidable manual S 220 0.2518 109 0.06 49
IV.RM33.EHZ. 2021-01-28T07:56:18.91 0.3 undecidable manual P 23 0.5486 50 -0.28 66
IV.LATB.EHZ. 2021-01-28T07:56:18.05 0.1 undecidable manual P 177 0.5108 50 -0.5 84
IV.VIVA.HHZ. 2021-01-28T07:56:18.88 0.6 undecidable manual S 204 0.2788 50 -0.37 46
IV.GIUL.HHZ. 2021-01-28T07:56:18.27 0.1 undecidable manual P 151 0.5099 50 -0.26 89
IV.SRES.HHZ. 2021-01-28T07:56:16.33 0.3 undecidable manual P 307 0.384 50 -0.06 71
IT.RMMM.HGE. 2021-01-28T07:56:16.39 0.3 undecidable manual P 257 0.3588 50 0.44 66
IV.ROM9.HNE. 2021-01-28T07:56:16.43 0.3 undecidable manual P 240 0.3507 50 0.62 62
IV.LAV9.HNZ. 2021-01-28T07:56:16.70 0.3 undecidable manual P 207 0.3669 50 0.62 62
IV.RCAV.EHZ. 2021-01-28T07:56:15.03 0.6 undecidable manual S 174 0.1583 118 -0.07 50
IV.SAMA.EHZ. 2021-01-28T07:56:15.28 0.3 undecidable manual P 228 0.3327 50 -0.22 70
IV.PTQR.HHZ. 2021-01-28T07:56:15.99 0.1 positive manual P 87 0.3552 50 0.11 95
IT.CSO1.HGE. 2021-01-28T07:56:15.32 0.6 undecidable manual S 52 0.1556 119 0.29 47
IV.GUAR.HHZ. 2021-01-28T07:56:15.76 0.3 undecidable manual P 126 0.3579 50 -0.17 70
IV.RMP.HHZ. 2021-01-28T07:56:14.13 0.1 positive manual P 220 0.2518 109 0.03 98
IV.VIVA.HHZ. 2021-01-28T07:56:14.58 0.3 undecidable manual P 204 0.2788 50 0.01 74
IV.FIAM.HHZ. 2021-01-28T07:56:14.81 0.1 undecidable manual P 29 0.3004 50 -0.14 95
IV.MA9.HHN. 2021-01-28T07:56:14.79 0.3 undecidable manual P 220 0.3058 50 -0.25 70
IT.MMP1.HGE. 2021-01-28T07:56:13.94 0.3 undecidable manual P 332 0.277 50 -0.61 64
IV.MTCE.HHZ. 2021-01-28T07:56:13.97 0.6 undecidable manual S 278 0.1358 122 -0.39 47
IT.CSO1.HGE. 2021-01-28T07:56:12.45 0.3 undecidable manual P 52 0.1556 119 0.31 71
IV.RCAV.EHZ. 2021-01-28T07:56:12.35 0.1 undecidable manual P 174 0.1583 118 0.17 97
IV.MTCE.HHZ. 2021-01-28T07:56:11.80 0.1 undecidable manual P 278 0.1358 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 0.0015919335 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 0.0031322005 0.2816 AML other m 2021-01-28T07:56:19.08
IV.VIVA.HHE. ML:2.4 0.0012179735 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 0.00046111935 0.8384 AML other m 2021-01-28T07:56:19.83
IV.VIVA.HHN. ML:2.5 0.001366731 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 0.00063963915 0.4224 AML other m 2021-01-28T07:56:22.50
IV.PTQR.HHN. ML:2 0.0003359492 0.2816 AML other m 2021-01-28T07:56:22.51
IV.PTQR.HHE. ML:2.2 0.0005260744 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 3.579568E-5 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 5.782174E-5 1.0816 AML other m 2021-01-28T07:56:27.15
IV.GIUL.HHN. ML:2 0.00020565615 0.16 AML other m 2021-01-28T07:56:27.28
IV.VVLD.HHE. ML:2.1 0.00023764915 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 0.00023372575 0.2624 AML other m 2021-01-28T07:56:27.59
IV.VVLD.HHN. ML:2.2 0.00032075 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 0.00019503615 0.704 AML other m 2021-01-28T07:56:29.11
IV.LNSS.HNN. ML:2.2 0.0002563964 0.3776 AML other m 2021-01-28T07:56:30.37
IV.LNSS.HHN. ML:2 0.00020174025 0.384 AML other m 2021-01-28T07:56:30.37
IV.LNSS.HNE. ML:2.2 0.00029757215 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 0.0003309464 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 0.000104035645 0.9792 AML other m 2021-01-28T07:56:32.86
IV.GAVE.EHN. ML:2.6 0.000596 0.28 AML other m 2021-01-28T07:56:32.72
IV.GAVE.EHE. ML:2.5 0.00044938955 0.2624 AML other m 2021-01-28T07:56:32.80
IV.CAMP.HHE. ML:1.5 5.3356245E-5 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 0.0003615 0.36 AML other m 2021-01-28T07:56:43.25
IV.FDMO.HHN. ML:2 7.4050295E-5 0.3392 AML other m 2021-01-28T07:56:44.27
IV.FDMO.HHE. ML:2.1 9.438199E-5 0.2944 AML other m 2021-01-28T07:56:43.96
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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