Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 28-11-2020 and time 02:02:15 (Italy) in region 1 km SE Gerano (RM)

A magnitude ML 1.9 earthquake occured in region: 1 km SE Gerano (RM), on

  • 28-11-2020 01:02:15 (UTC)
  • 28-11-2020 02:02:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.93, 13 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Gerano RM 1 1263 1263
Cerreto Laziale RM 3 1118 2381
Rocca Santo Stefano RM 3 975 3356
Canterano RM 3 351 3707
Rocca Canterano RM 4 196 3903
Pisoniano RM 4 770 4673
San Vito Romano RM 5 3273 7946
Bellegra RM 6 2887 10833
Ciciliano RM 6 1336 12169
Agosta RM 7 1765 13934
Marano Equo RM 8 779 14713
Roiate RM 8 737 15450
Olevano Romano RM 8 6687 22137
Subiaco RM 8 9074 31211
Sambuci RM 8 925 32136
Capranica Prenestina RM 8 351 32487
Cervara di Roma RM 9 455 32942
Anticoli Corrado RM 9 915 33857
Affile RM 9 1548 35405
Saracinesco RM 9 185 35590
Casape RM 10 744 36334
Poli RM 10 2418 38752
Rocca di Cave RM 10 377 39129
Arcinazzo Romano RM 11 1348 40477
San Gregorio da Sassola RM 11 1619 42096
Roviano RM 11 1351 43447
Genazzano RM 11 6036 49483
Rocca di Botte AQ 12 856 50339
Castel Madama RM 12 7399 57738
Serrone FR 13 3099 60837
Castel San Pietro Romano RM 13 902 61739
Arsoli RM 13 1586 63325
Mandela RM 13 917 64242
Vicovaro RM 13 4019 68261
Camerata Nuova RM 13 447 68708
Cave RM 14 11287 79995
Palestrina RM 14 21672 101667
Oricola AQ 14 1244 102911
Cineto Romano RM 14 601 103512
Paliano FR 15 8281 111793
Jenne RM 15 366 112159
Riofreddo RM 15 781 112940
Roccagiovine RM 16 263 113203
Piglio FR 16 4666 117869
Gallicano nel Lazio RM 16 6334 124203
San Polo dei Cavalieri RM 16 2992 127195
Pereto AQ 17 682 127877
Tivoli RM 17 56533 184410
Zagarolo RM 17 17843 202253
Vallinfreda RM 17 283 202536
Valmontone RM 18 15959 218495
Licenza RM 18 1011 219506
Labico RM 19 6379 225885
Vallepietra RM 19 283 226168
Vivaro Romano RM 19 182 226350
Marcellina RM 19 7280 233630
Carsoli AQ 20 5396 239026
Percile RM 20 255 239281

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Tivoli (56533 inhabitants)
24 Km E of Guidonia Montecelio (88673 inhabitants)
33 Km NE of Velletri (53303 inhabitants)
43 Km E of Roma (2864731 inhabitants)
47 Km NE of Aprilia (73446 inhabitants)
50 Km NE of Pomezia (62966 inhabitants)
52 Km N of Latina (125985 inhabitants)
57 Km SW of L'Aquila (69753 inhabitants)
62 Km NE of Anzio (54211 inhabitants)
66 Km E of Fiumicino (78395 inhabitants)
76 Km SE of Terni (111501 inhabitants)
92 Km SE of Viterbo (67173 inhabitants)
100 Km SW of Teramo (54892 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Reviewed
Rev100 		ML 1.9 2020-11-28
01:02:15		 41.93 13 9 2020-11-28
01:27:16		 Sala Sismica INGV-Roma 85058401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-28 01:02:15 ± 0.04
Latitude 41.93 ± 0.00
Longitude 13.00 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85058401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 131
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 230
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 67
Number of defining phases 67
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.09173
Epicentral distance of station farthest from the epicenter (degree) 0.97576
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 40
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 85058401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-28 01:27:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-11-28T01:02:45.69 0.6 undecidable manual S 340 0.9308 50 0.01 44
IV.RNI2.HHE. 2020-11-28T01:02:44.14 0.6 undecidable manual S 104 0.8858 50 -0.2 43
IV.CERA.HHZ. 2020-11-28T01:02:43.07 0.6 undecidable manual S 113 0.8265 50 0.49 41
IV.CESX.HHZ. 2020-11-28T01:02:40.26 0.6 undecidable manual S 336 0.7455 50 0.07 45
IV.SMA1.EHE. 2020-11-28T01:02:40.06 0.6 undecidable manual S 19 0.7428 50 -0.06 45
IV.INTR.HHZ. 2020-11-28T01:02:38.02 0.6 undecidable manual S 83 0.6754 50 -0.09 46
IV.ARRO.EHZ. 2020-11-28T01:02:37.72 0.6 undecidable manual S 345 0.6727 50 -0.32 44
IT.OPI.HGE. 2020-11-28T01:02:36.49 0.6 undecidable manual S 104 0.6349 50 -0.41 43
IV.LIK.EHE.01 2020-11-28T01:02:36.11 0.6 undecidable manual S 136 0.5971 50 0.32 44
IV.POFI.HHZ. 2020-11-28T01:02:35.14 0.3 undecidable manual S 112 0.5693 50 0.18 69
IV.MIDA.HHE. 2020-11-28T01:02:33.76 0.3 undecidable manual P 107 0.9758 50 0.17 63
IV.LRP.EHZ. 2020-11-28T01:02:33.59 0.3 undecidable manual S 123 0.518 50 0.13 70
IV.SRES.HHZ. 2020-11-28T01:02:32.09 0.6 undecidable manual S 310 0.4775 50 -0.17 47
IV.MOMA.HHZ. 2020-11-28T01:02:32.48 0.1 undecidable manual P 340 0.9308 50 -0.35 82
IV.RNI2.HHE. 2020-11-28T01:02:32.12 0.1 undecidable manual P 104 0.8858 50 0.06 88
IV.TERO.HHE. 2020-11-28T01:02:31.22 0.6 undecidable manual P 32 0.8238 50 0.22 43
IV.VVLD.HHZ. 2020-11-28T01:02:31.80 0.3 undecidable manual S 97 0.4658 50 -0.09 72
IV.LPEL.HHE. 2020-11-28T01:02:31.93 0.6 undecidable manual P 82 0.8849 50 -0.11 44
IV.BARO.EHN. 2020-11-28T01:02:30.37 0.6 undecidable manual P 295 0.7743 50 0.22 44
IV.SMA1.EHE. 2020-11-28T01:02:30.12 0.1 undecidable manual P 19 0.7428 50 0.5 83
IV.GIUL.HHZ. 2020-11-28T01:02:30.19 0.3 undecidable manual S 153 0.4155 50 -0.21 71
IV.CERA.HHZ. 2020-11-28T01:02:30.87 0.1 undecidable manual P 113 0.8265 50 -0.17 87
IV.LATB.EHZ. 2020-11-28T01:02:30.83 0.6 undecidable manual S 184 0.4362 50 -0.18 47
IV.MCI.EHE. 2020-11-28T01:02:29.56 0.1 undecidable manual P 126 0.7464 50 -0.11 90
IT.MMP1.HGZ. 2020-11-28T01:02:29.34 0.6 undecidable manual S 330 0.3714 50 0.23 47
IT.RMVT.HGN. 2020-11-28T01:02:29.88 0.6 undecidable manual S 274 0.3849 50 0.37 46
IV.T1299.HNE. 2020-11-28T01:02:29.87 0.6 undecidable manual P 16 0.7347 50 0.4 42
IV.CESX.HHZ. 2020-11-28T01:02:29.83 0.1 undecidable manual P 336 0.7455 50 0.17 89
IV.LNSS.HHZ. 2020-11-28T01:02:28.80 0.6 undecidable manual P 2 0.6745 50 0.36 43
IV.T0110.HHE. 2020-11-28T01:02:28.39 0.1 undecidable manual P 62 0.6475 50 0.4 86
IV.INTR.HHZ. 2020-11-28T01:02:28.27 0.1 undecidable manual P 83 0.6754 50 -0.19 90
IV.GIGS.HHE. 2020-11-28T01:02:28.80 0.6 undecidable manual P 39 0.6727 50 0.38 43
IV.LAV9.HHZ. 2020-11-28T01:02:28.52 0.3 undecidable manual S 222 0.3381 50 0.41 69
IV.CAMP.HHE. 2020-11-28T01:02:28.44 0.3 undecidable manual P 26 0.6772 50 -0.05 69
IV.ARRO.EHZ. 2020-11-28T01:02:28.13 0.3 undecidable manual P 345 0.6727 50 -0.29 66
IV.MA9.HHN. 2020-11-28T01:02:27.09 0.3 undecidable manual S 238 0.3013 50 0.07 74
IV.PTQR.HHZ. 2020-11-28T01:02:27.38 0.3 undecidable manual S 72 0.3103 50 0.1 74
IT.OPI.HGE. 2020-11-28T01:02:27.67 0.3 undecidable manual P 104 0.6349 50 -0.09 69
IV.LIK.EHE.01 2020-11-28T01:02:27.27 0.1 undecidable manual P 136 0.5971 50 0.15 92
IV.SAMA.EHZ. 2020-11-28T01:02:27.85 0.3 undecidable manual S 244 0.3399 50 -0.31 70
IV.POFI.HHZ. 2020-11-28T01:02:26.40 0.1 positive manual P 112 0.5693 50 -0.24 91
IV.GUAR.HHZ. 2020-11-28T01:02:25.75 0.3 undecidable manual S 120 0.2671 50 -0.25 72
IV.LRP.EHZ. 2020-11-28T01:02:25.74 0.1 undecidable manual P 123 0.518 50 -0.03 96
MN.AQU.HHN. 2020-11-28T01:02:25.93 1.0 undecidable manual P 35 0.5189 50 0.14 23
IV.VIVA.HHE. 2020-11-28T01:02:25.25 0.3 undecidable manual S 224 0.2482 109 -0.14 74
IV.RMP.HHZ. 2020-11-28T01:02:25.27 0.3 undecidable manual S 242 0.2509 109 -0.19 73
IV.VVLD.HHZ. 2020-11-28T01:02:24.64 0.1 positive manual P 97 0.4658 50 -0.23 93
IV.LATB.EHZ. 2020-11-28T01:02:24.08 0.1 positive manual P 184 0.4362 50 -0.28 92
IT.RMMM.HGN. 2020-11-28T01:02:24.13 0.3 undecidable manual P 269 0.4092 50 0.23 70
IV.SRES.HHZ. 2020-11-28T01:02:24.71 0.1 undecidable manual P 310 0.4775 50 -0.37 90
IV.LAV9.HHZ. 2020-11-28T01:02:23.19 0.1 undecidable manual P 222 0.3381 50 0.5 90
IV.GIUL.HHZ. 2020-11-28T01:02:23.89 0.1 positive manual P 153 0.4155 50 -0.12 96
IT.CSO1.HGZ. 2020-11-28T01:02:23.01 0.3 undecidable manual S 20 0.1835 115 -0.05 76
IV.MTCE.HHZ. 2020-11-28T01:02:23.76 0.3 undecidable manual S 296 0.2149 112 -0.42 70
IT.MMP1.HGZ. 2020-11-28T01:02:23.33 1.0 undecidable manual P 330 0.3714 50 0.07 24
IV.ROM9.HNE. 2020-11-28T01:02:23.51 0.6 undecidable manual P 255 0.3759 50 0.17 48
IT.RMVT.HGN. 2020-11-28T01:02:23.78 1.0 undecidable manual P 274 0.3849 50 0.29 23
IV.SAMA.EHZ. 2020-11-28T01:02:22.50 0.1 undecidable manual P 244 0.3399 50 -0.21 96
IV.MA9.HHN. 2020-11-28T01:02:22.11 0.1 undecidable manual P 238 0.3013 50 0.05 100
IV.PTQR.HHZ. 2020-11-28T01:02:22.07 0.1 positive manual P 72 0.3103 50 -0.14 98
IV.VIVA.HHE. 2020-11-28T01:02:21.28 0.1 undecidable manual P 224 0.2482 109 0.16 98
IV.RMP.HHZ. 2020-11-28T01:02:21.07 0.1 positive manual P 242 0.2509 109 -0.09 100
IV.GUAR.HHZ. 2020-11-28T01:02:21.31 0.1 undecidable manual P 120 0.2671 50 -0.16 98
IV.MTCE.HHZ. 2020-11-28T01:02:20.18 0.1 undecidable manual P 296 0.2149 112 -0.24 97
IV.RCAV.EHZ. 2020-11-28T01:02:20.37 0.3 undecidable manual S 208 0.0917 133 0.27 74
IT.CSO1.HGZ. 2020-11-28T01:02:19.91 0.1 undecidable manual P 20 0.1835 115 0.14 100
IV.RCAV.EHZ. 2020-11-28T01:02:18.36 0.1 positive manual P 208 0.0917 133 0.3 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RCAV.EHN. ML:2 0.001205 1 AML other m 2020-11-28T01:02:21.68
IV.RCAV.EHE. ML:2 0.001215 1.22 AML other m 2020-11-28T01:02:21.80
IV.MTCE.HHN. ML:2 0.0006095 0.42 AML other m 2020-11-28T01:02:24.75
IV.MTCE.HHE. ML:1.9 0.000473 1.02 AML other m 2020-11-28T01:02:25.45
IV.GUAR.HHE. ML:2 0.000476 0.46 AML other m 2020-11-28T01:02:26.51
IV.GUAR.HHN. ML:2 0.0004695 0.9 AML other m 2020-11-28T01:02:27.58
IV.PTQR.HHN. ML:2 0.0003945 0.36 AML other m 2020-11-28T01:02:28.28
IV.RMP.HHN. ML:2.6 0.002145 1.68 AML other m 2020-11-28T01:02:28.92
IV.PTQR.HHE. ML:1.9 0.000327 0.84 AML other m 2020-11-28T01:02:29.60
IV.RMP.HHE. ML:2.4 0.00141 1.2 AML other m 2020-11-28T01:02:29.71
IV.LAV9.HHE. ML:2.5 0.00125 0.54 AML other m 2020-11-28T01:02:29.70
IV.LAV9.HNE. ML:2.5 0.001255 0.56 AML other m 2020-11-28T01:02:29.70
IV.LAV9.HHN. ML:2.4 0.00103 0.18 AML other m 2020-11-28T01:02:31.28
IV.LAV9.HNN. ML:2.4 0.001033 0.48 AML other m 2020-11-28T01:02:31.28
IV.GIUL.HHE. ML:1.5 9.69E-5 0.16 AML other m 2020-11-28T01:02:32.60
IV.VVLD.HHE. ML:1.8 0.000152 0.46 AML other m 2020-11-28T01:02:34.26
IV.GIUL.HHN. ML:1.5 9.12E-5 1 AML other m 2020-11-28T01:02:34.60
IV.LRP.EHN. ML:1.4 6.135E-5 0.92 AML other m 2020-11-28T01:02:34.37
IV.SRES.HHN. ML:1.4 5.37E-5 0.44 AML other m 2020-11-28T01:02:35.29
IV.LRP.EHE. ML:2 0.00021 0.22 AML other m 2020-11-28T01:02:35.50
IV.VVLD.HHN. ML:1.8 0.000151 1.6 AML other m 2020-11-28T01:02:37.95
IV.SRES.HHE. ML:1.4 6.55E-5 0.56 AML other m 2020-11-28T01:02:37.58
IV.POFI.HHE. ML:1.5 6.07E-5 1.66 AML other m 2020-11-28T01:02:37.87
IV.POFI.HHN. ML:1.5 6.205E-5 0.26 AML other m 2020-11-28T01:02:38.00
IV.INTR.HHE. ML:1.6 6.705E-5 1.38 AML other m 2020-11-28T01:02:46.90
IV.INTR.HHN. ML:1.7 6.965E-5 0.38 AML other m 2020-11-28T01:02:47.72
IV.MOMA.HHE. ML:1.8 5.635E-5 0.5 AML other m 2020-11-28T01:02:48.67
IV.MOMA.HHN. ML:1.8 5.765E-5 1.2 AML other m 2020-11-28T01:02:50.04
IV.VVLD.HNE. ML:1.9 0.0001901443 0.8096 AML other m 2020-11-28T01:02:32.69
IV.VVLD.HNN. ML:1.8 0.00015314145 0.42 AML other m 2020-11-28T01:02:36.94
IV.POFI.HNE. ML:1.8 0.000121920625 0.62 AML other m 2020-11-28T01:02:41.92
IV.POFI.HNN. ML:2 0.0001960639 0.7 AML other m 2020-11-28T01:02:38.77
IV.INTR.HNE. ML:2 0.00016254739 0.9 AML other m 2020-11-28T01:02:53.45
IV.INTR.HNN. ML:2 0.000167553 1.0696 AML other m 2020-11-28T01:02:49.69
IV.CERA.HHE. ML:1.7 6.118707E-5 0.64 AML other m 2020-11-28T01:02:53.82
IV.CERA.HHN. ML:1.7 5.255469E-5 0.3 AML other m 2020-11-28T01:02:50.97
IV.CERA.HNE. ML:1.8 7.24322E-5 0.8 AML other m 2020-11-28T01:02:54.57
IV.CERA.HNN. ML:1.7 5.741114E-5 0.68 AML other m 2020-11-28T01:02:59.18
IV.MOMA.HNE. ML:2.3 0.00017037625 0.9 AML other m 2020-11-28T01:02:59.19
IV.MOMA.HNN. ML:2.5 0.00031863975 0.8408 AML other m 2020-11-28T01:02:53.28
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download