Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 05-07-2023 and time 20:49:11 (Italy) in region 2 km SW Ciciliano (RM)

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

  • 05-07-2023 18:49:11 (UTC)
  • 05-07-2023 20:49:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9470, 12.9280 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
Ciciliano RM 2 1336 1336
Cerreto Laziale RM 5 1118 2454
Sambuci RM 5 925 3379
Pisoniano RM 5 770 4149
San Gregorio da Sassola RM 5 1619 5768
Casape RM 6 744 6512
Gerano RM 6 1263 7775
Castel Madama RM 6 7399 15174
Saracinesco RM 7 185 15359
Poli RM 7 2418 17777
Rocca Canterano RM 8 196 17973
Vicovaro RM 8 4019 21992
San Vito Romano RM 8 3273 25265
Anticoli Corrado RM 9 915 26180
Rocca Santo Stefano RM 9 975 27155
Canterano RM 9 351 27506
Marano Equo RM 9 779 28285
Capranica Prenestina RM 10 351 28636
Agosta RM 10 1765 30401
Mandela RM 10 917 31318
San Polo dei Cavalieri RM 10 2992 34310
Roviano RM 11 1351 35661
Tivoli RM 11 56533 92194
Bellegra RM 11 2887 95081
Rocca di Cave RM 11 377 95458
Castel San Pietro Romano RM 11 902 96360
Roccagiovine RM 12 263 96623
Cineto Romano RM 12 601 97224
Gallicano nel Lazio RM 12 6334 103558
Palestrina RM 12 21672 125230
Cervara di Roma RM 13 455 125685
Olevano Romano RM 13 6687 132372
Arsoli RM 13 1586 133958
Marcellina RM 13 7280 141238
Genazzano RM 13 6036 147274
Roiate RM 14 737 148011
Cave RM 14 11287 159298
Riofreddo RM 14 781 160079
Zagarolo RM 14 17843 177922
Licenza RM 14 1011 178933
Subiaco RM 15 9074 188007
Rocca di Botte AQ 15 856 188863
Oricola AQ 15 1244 190107
Affile RM 16 1548 191655
Vallinfreda RM 16 283 191938
Percile RM 17 255 192193
Camerata Nuova RM 17 447 192640
Arcinazzo Romano RM 17 1348 193988
San Cesareo RM 17 15153 209141
Guidonia Montecelio RM 18 88673 297814
Labico RM 18 6379 304193
Serrone FR 18 3099 307292
Vivaro Romano RM 18 182 307474
Valmontone RM 19 15959 323433
Palombara Sabina RM 19 13269 336702
Colonna RM 19 4287 340989
Paliano FR 19 8281 349270
Pereto AQ 19 682 349952
Monteflavio RM 20 1348 351300

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km E of Tivoli (56533 inhabitants)
18 Km E of Guidonia Montecelio (88673 inhabitants)
31 Km NE of Velletri (53303 inhabitants)
37 Km E of Roma (2864731 inhabitants)
45 Km NE of Aprilia (73446 inhabitants)
47 Km NE of Pomezia (62966 inhabitants)
53 Km N of Latina (125985 inhabitants)
60 Km SW of L'Aquila (69753 inhabitants)
60 Km E of Fiumicino (78395 inhabitants)
61 Km NE of Anzio (54211 inhabitants)
72 Km SE of Terni (111501 inhabitants)
86 Km SE of Viterbo (67173 inhabitants)
95 Km E of Civitavecchia (52991 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
Reviewed
Rev100 		ML 2.2 2023-07-05
18:49:11		 41.9468 12.9277 9 2023-07-05
18:55:30		 Sala Sismica INGV-Roma 118999221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-05 18:49:11 ± 0.08
Latitude 41.9468 ± 0.0036
Longitude 12.9277 ± 0.0073
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 118999221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 589
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 30
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) 0.84087
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 18
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 58
Type of magnitude ML
Reference to an origin 118999221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-05 18:55:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2023-07-05T18:49:49.17 3.0 undecidable manual S 1.64 0
IV.MOMA.HHZ. 2023-07-05T18:49:42.56 3.0 undecidable manual S -0.18 0
IV.CERA.HHZ. 2023-07-05T18:49:41.11 3.0 undecidable manual S -0.98 0
IV.FRON.EHZ. 2023-07-05T18:49:41.15 3.0 undecidable manual P 2.97 0
IV.CING.HHZ. 2023-07-05T18:49:39.29 3.0 negative manual P 2.99 0
IV.MCI.EHZ. 2023-07-05T18:49:39.51 3.0 undecidable manual S 124 89.0442 50 1.29 0
IV.ARVD.HHZ. 2023-07-05T18:49:37.44 3.0 negative manual P -0.36 0
IV.SACS.HHZ. 2023-07-05T18:49:34.17 3.0 undecidable manual P 1.44 0
IV.ARRO.EHZ. 2023-07-05T18:49:34.19 0.6 undecidable manual S 349 71.373 50 0.68 39
IV.POFI.HHZ. 2023-07-05T18:49:33.30 0.6 undecidable manual S 111 69.6747 50 0.25 44
IV.MF5.EHZ. 2023-07-05T18:49:33.70 3.0 undecidable manual P 1.94 0
IV.FDMO.HHZ. 2023-07-05T18:49:32.18 3.0 undecidable manual P 0.63 0
IV.ASSB.HHZ. 2023-07-05T18:49:32.19 3.0 undecidable manual P 0.37 0
IV.RM33.EHZ. 2023-07-05T18:49:32.36 1.0 undecidable manual S 21 66.6777 50 0.11 23
IV.LRP.EHZ. 2023-07-05T18:49:31.68 0.6 undecidable manual S 121 63.8916 50 0.19 45
IV.VVLD.HHZ. 2023-07-05T18:49:30.13 0.3 undecidable manual S 98 58.0974 50 0.18 68
IV.LPEL.HHZ. 2023-07-05T18:49:29.55 3.0 undecidable manual P 0.22 0
IV.NRCA.HHZ. 2023-07-05T18:49:28.34 3.0 positive manual P -0.46 0
IV.GIUL.HHZ. 2023-07-05T18:49:28.14 0.3 undecidable manual S 148 50.9157 50 0.11 70
IV.TERO.HHZ. 2023-07-05T18:49:28.23 1.0 negative manual P 36 93.3399 50 0.59 19
IV.MOMA.HHZ. 2023-07-05T18:49:28.75 3.0 positive manual P -0.11 0
IV.LATB.EHZ. 2023-07-05T18:49:28.07 0.1 undecidable manual S 177 50.3163 50 0.19 92
IV.CERA.HHZ. 2023-07-05T18:49:27.87 3.0 undecidable manual P -0.62 0
IV.MCI.EHZ. 2023-07-05T18:49:27.06 0.1 positive manual P 124 89.0442 50 0.08 87
IV.SMA1.EHZ. 2023-07-05T18:49:26.97 0.6 undecidable manual P 24 82.8504 50 0.94 34
IV.T0110.HHZ. 2023-07-05T18:49:25.58 0.6 undecidable manual P 66 76.5678 50 0.52 41
IV.CESX.HHZ. 2023-07-05T18:49:25.55 0.3 undecidable manual P 339 78.5658 50 0.19 66
IV.PTQR.HHZ. 2023-07-05T18:49:25.17 0.1 undecidable manual S 78 39.9267 50 0.08 96
IV.FIAM.HHZ. 2023-07-05T18:49:24.52 0.1 undecidable manual S 24 38.9277 50 -0.31 92
IV.ARRO.EHZ. 2023-07-05T18:49:24.06 0.6 negative manual P 349 71.373 50 -0.19 44
IV.LRP.EHZ. 2023-07-05T18:49:23.00 0.6 negative manual P 121 63.8916 50 -0.09 46
IV.GUAR.HHZ. 2023-07-05T18:49:23.85 0.1 undecidable manual S 118 36.0417 50 -0.21 94
IV.RM33.EHZ. 2023-07-05T18:49:23.15 0.6 undecidable manual P 21 66.6777 50 -0.38 43
IV.POFI.HHZ. 2023-07-05T18:49:23.61 0.1 negative manual P 111 69.6747 50 -0.38 85
IV.VVLD.HHZ. 2023-07-05T18:49:21.96 0.3 undecidable manual P 98 58.0974 50 -0.24 67
IV.LATB.EHZ. 2023-07-05T18:49:20.51 0.6 negative manual P 177 50.3163 50 -0.5 43
IV.GIUL.HHZ. 2023-07-05T18:49:20.90 1.0 positive manual P 148 50.9157 50 -0.2 23
IV.PTQR.HHZ. 2023-07-05T18:49:19.13 0.6 undecidable manual P 78 39.9267 50 -0.27 46
IV.GUAR.HHZ. 2023-07-05T18:49:18.69 0.3 negative manual P 118 36.0417 50 -0.11 72
IV.FIAM.HHZ. 2023-07-05T18:49:18.94 0.6 negative manual P 24 38.9277 50 -0.31 46
IV.RCAV.EHZ. 2023-07-05T18:49:16.70 0.6 undecidable manual S 172 11.1777 130 0.03 51
IV.CERT.HNZ. 2023-07-05T18:49:15.25 0.6 undecidable manual S 87 4.4955 154 0.03 52
IV.MTCE.HHZ. 2023-07-05T18:49:15.42 0.1 positive manual P 299 17.4714 118 -0.17 98
IV.RCAV.EHZ. 2023-07-05T18:49:14.66 0.1 negative manual P 172 11.1777 130 0.12 100
IV.CERT.HNZ. 2023-07-05T18:49:13.85 0.3 negative manual P 87 4.4955 154 0.15 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHE. ML:2.6 0.007285 0.8 AML other m 2023-07-05T18:49:15.96
IV.CERT.HHN. ML:2.8 0.01124 1.4 AML other m 2023-07-05T18:49:15.79
IV.CERT.HNN. ML:2.7 0.01027 1.42 AML other m 2023-07-05T18:49:15.79
IV.CERT.HNE. ML:2.9 0.0162 1.46 AML other m 2023-07-05T18:49:16.97
IV.RCAV.EHN. ML:2.5 0.004109999999999999 1.8 AML other m 2023-07-05T18:49:16.04
IV.RCAV.EHE. ML:2.6 0.004355 0.4 AML other m 2023-07-05T18:49:18.31
IV.MTCE.HHE. ML:2.0 0.0008235 0.86 AML other m 2023-07-05T18:49:20.57
IV.MTCE.HHN. ML:2.0 0.0009930000000000002 0.46 AML other m 2023-07-05T18:49:20.60
IV.FIAM.HHN. ML:2.0 0.00033650000000000005 0.3 AML other m 2023-07-05T18:49:24.71
IV.GUAR.HNE. ML:2.5 0.0011619999999999998 0.88 AML other m 2023-07-05T18:49:25.81
IV.GUAR.HHE. ML:2.5 0.001245 0.3 AML other m 2023-07-05T18:49:25.81
IV.PTQR.HHN. ML:2.0 0.0003815 0.4 AML other m 2023-07-05T18:49:26.37
IV.GUAR.HNN. ML:2.4 0.000916 0.32 AML other m 2023-07-05T18:49:27.59
IV.GUAR.HHN. ML:2.4 0.000983 0.32 AML other m 2023-07-05T18:49:27.59
IV.PTQR.HHE. ML:2.0 0.00036449999999999997 0.56 AML other m 2023-07-05T18:49:28.11
IV.GIUL.HHN. ML:2.2 0.0003745 0.4 AML other m 2023-07-05T18:49:29.51
IV.LATB.EHE. ML:1.5 0.000076 0.96 AML other m 2023-07-05T18:49:29.50
IV.GIUL.HHE. ML:2.1 0.000356 0.48 AML other m 2023-07-05T18:49:30.52
IV.FIAM.HHE. ML:2.1 0.000458 1.34 AML other m 2023-07-05T18:49:31.91
IV.FIAM.HNE. ML:2.3 0.0006565000000000001 1.34 AML other m 2023-07-05T18:49:31.91
IV.LATB.EHN. ML:1.3 0.000055249999999999994 0.58 AML other m 2023-07-05T18:49:32.98
IV.FIAM.HNN. ML:2.0 0.00039 0.48 AML other m 2023-07-05T18:49:33.18
IV.POFI.HHE. ML:2.0 0.00017199999999999998 0.32 AML other m 2023-07-05T18:49:34.25
IV.VVLD.HHE. ML:2.2 0.000316 0.42 AML other m 2023-07-05T18:49:35.73
IV.POFI.HHN. ML:1.9 0.0001245 0.28 AML other m 2023-07-05T18:49:36.22
IV.LRP.EHN. ML:2.0 0.00016849999999999998 0.32 AML other m 2023-07-05T18:49:36.54
IV.LRP.EHE. ML:2.3 0.00040849999999999995 0.36 AML other m 2023-07-05T18:49:36.89
IV.VVLD.HHN. ML:2.2 0.00038700000000000003 1.42 AML other m 2023-07-05T18:49:37.20
IV.CESX.HHN. ML:2.2 0.000199 0.42 AML other m 2023-07-05T18:49:37.46
IV.ARRO.EHN. ML:2.1 0.00019350000000000001 0.24 AML other m 2023-07-05T18:49:37.40
IV.ARRO.EHE. ML:2.0 0.00014549999999999999 0.22 AML other m 2023-07-05T18:49:39.23
IV.ARVD.HHE. ML:2.1 0.0000558 0.08 AML other m 2023-07-05T18:49:39.35
IV.RM33.EHE. ML:2.2 0.000254 0.68 AML other m 2023-07-05T18:49:39.52
IV.T0110.HHN. ML:2.2 0.00021349999999999999 0.94 AML other m 2023-07-05T18:49:39.78
IV.RM33.EHN. ML:2.0 0.000199 1.14 AML other m 2023-07-05T18:49:39.23
IV.ARVD.HHN. ML:2.1 0.0000526 0.84 AML other m 2023-07-05T18:49:40.05
IV.CESX.HHE. ML:2.2 0.0002205 0.4 AML other m 2023-07-05T18:49:40.69
IV.MCI.EHN. ML:2.5 0.00035099999999999997 0.3 AML other m 2023-07-05T18:49:40.90
IV.T0110.HHE. ML:2.1 0.0001995 0.4 AML other m 2023-07-05T18:49:42.27
IV.MCI.EHE. ML:2.6 0.00046199999999999995 1.72 AML other m 2023-07-05T18:49:43.86
IV.SMA1.EHN. ML:2.3 0.00025550000000000003 1.1 AML other m 2023-07-05T18:49:43.85
IV.MOMA.HHE. ML:2.3 0.0002045 1.38 AML other m 2023-07-05T18:49:44.16
IV.MOMA.HHN. ML:2.2 0.00013800000000000002 0.48 AML other m 2023-07-05T18:49:45.59
IV.SMA1.EHE. ML:2.4 0.00035950000000000006 0.44 AML other m 2023-07-05T18:49:46.10
IV.CERA.HHE. ML:2.1 0.000121 0.34 AML other m 2023-07-05T18:49:46.26
IV.NRCA.HHN. ML:2.2 0.000142 0.74 AML other m 2023-07-05T18:49:46.92
IV.TERO.HHN. ML:2.1 0.00013900000000000002 1.58 AML other m 2023-07-05T18:49:46.80
IV.TERO.HHE. ML:2.0 0.00011650000000000001 1.56 AML other m 2023-07-05T18:49:46.12
IV.NRCA.HHE. ML:2.1 0.00011999999999999999 1 AML other m 2023-07-05T18:49:48.88
IV.ASSB.HHE. ML:2.0 0.00008085 0.44 AML other m 2023-07-05T18:49:51.36
IV.CERA.HHN. ML:2.2 0.00017649999999999998 0.46 AML other m 2023-07-05T18:49:51.59
IV.FDMO.HHN. ML:1.9 0.00005935 0.66 AML other m 2023-07-05T18:49:53.50
IV.LPEL.HHE. ML:1.9 0.0000718 1.22 AML other m 2023-07-05T18:49:53.32
IV.ASSB.HHN. ML:2.0 0.00007405000000000001 0.48 AML other m 2023-07-05T18:49:54.62
IV.FDMO.HHE. ML:1.9 0.000058500000000000006 0.8 AML other m 2023-07-05T18:49:55.45
IV.SACS.HHE. ML:1.8 0.00003875 1.5 AML other m 2023-07-05T18:49:55.93
IV.LPEL.HHN. ML:1.8 0.00005765 0.96 AML other m 2023-07-05T18:49:56.14
IV.SACS.HHN. ML:1.8 0.000040300000000000004 0.92 AML other m 2023-07-05T18:49:57.44
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