Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 05-07-2023 and time 14:08:03 (Italy) in region 1 km SW Ciciliano (RM)

A magnitude ML 2.5 earthquake occured in region: 1 km SW Ciciliano (RM), on

  • 05-07-2023 12:08:03 (UTC)
  • 05-07-2023 14:08:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9550, 12.9380 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
Ciciliano RM 1 1336 1336
Sambuci RM 4 925 2261
Cerreto Laziale RM 4 1118 3379
Gerano RM 5 1263 4642
Pisoniano RM 5 770 5412
Saracinesco RM 6 185 5597
Castel Madama RM 6 7399 12996
San Gregorio da Sassola RM 7 1619 14615
Casape RM 7 744 15359
Rocca Canterano RM 7 196 15555
Anticoli Corrado RM 8 915 16470
Vicovaro RM 8 4019 20489
Marano Equo RM 8 779 21268
Poli RM 8 2418 23686
Agosta RM 9 1765 25451
Canterano RM 9 351 25802
Mandela RM 9 917 26719
Rocca Santo Stefano RM 9 975 27694
San Vito Romano RM 9 3273 30967
Roviano RM 9 1351 32318
Capranica Prenestina RM 10 351 32669
San Polo dei Cavalieri RM 10 2992 35661
Cineto Romano RM 11 601 36262
Roccagiovine RM 11 263 36525
Bellegra RM 11 2887 39412
Cervara di Roma RM 12 455 39867
Tivoli RM 12 56533 96400
Arsoli RM 12 1586 97986
Rocca di Cave RM 12 377 98363
Castel San Pietro Romano RM 13 902 99265
Riofreddo RM 13 781 100046
Olevano Romano RM 13 6687 106733
Marcellina RM 13 7280 114013
Gallicano nel Lazio RM 13 6334 120347
Palestrina RM 13 21672 142019
Rocca di Botte AQ 14 856 142875
Oricola AQ 14 1244 144119
Licenza RM 14 1011 145130
Roiate RM 14 737 145867
Subiaco RM 14 9074 154941
Genazzano RM 14 6036 160977
Cave RM 15 11287 172264
Vallinfreda RM 15 283 172547
Affile RM 15 1548 174095
Zagarolo RM 16 17843 191938
Percile RM 16 255 192193
Camerata Nuova RM 16 447 192640
Arcinazzo Romano RM 17 1348 193988
Vivaro Romano RM 17 182 194170
Pereto AQ 18 682 194852
Guidonia Montecelio RM 18 88673 283525
Serrone FR 18 3099 286624
San Cesareo RM 19 15153 301777
Palombara Sabina RM 19 13269 315046
Labico RM 19 6379 321425
Monteflavio RM 20 1348 322773
Paliano FR 20 8281 331054
Orvinio RI 20 405 331459
Valmontone RM 20 15959 347418
Carsoli AQ 20 5396 352814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km E of Tivoli (56533 inhabitants)
18 Km E of Guidonia Montecelio (88673 inhabitants)
33 Km NE of Velletri (53303 inhabitants)
38 Km E of Roma (2864731 inhabitants)
47 Km NE of Aprilia (73446 inhabitants)
48 Km NE of Pomezia (62966 inhabitants)
54 Km N of Latina (125985 inhabitants)
58 Km SW of L'Aquila (69753 inhabitants)
61 Km E of Fiumicino (78395 inhabitants)
62 Km NE of Anzio (54211 inhabitants)
72 Km SE of Terni (111501 inhabitants)
86 Km SE of Viterbo (67173 inhabitants)
96 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
Bulletin
Rev1000 		ML 2.5 2023-07-05
12:08:03		 41.9552 12.9375 10 2024-09-10
16:44:21		 Bollettino Sismico Italiano INGV 123493011
Reviewed
Rev100 		ML 2.5 2023-07-05
12:08:03		 41.9522 12.9328 10 2023-07-05
12:18:47		 Sala Sismica INGV-Roma 118990841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-05 12:08:03 ± 0.07
Latitude 41.9552 ± 0.0036
Longitude 12.9375 ± 0.0060
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 123493011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 420
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 146
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
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) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.93889
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:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 56
Type of magnitude ML
Reference to an origin 123493011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-05-27 09:28:06

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 84
Type of magnitude ML
Reference to an origin 118990841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-05 12:18:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCI.EHZ. 2023-07-05T12:08:31.73 0.6 undecidable manual S 125 88.9443 50 1.39 26
IV.CESX.HHZ. 2023-07-05T12:08:29.09 0.6 undecidable manual S 338 77.9664 50 1.66 23
IV.ARRO.EHZ. 2023-07-05T12:08:26.84 0.6 undecidable manual S 349 70.6737 50 1.37 28
IV.LRP.EHZ. 2023-07-05T12:08:23.80 0.3 undecidable manual S 122 63.5919 50 0.2 66
IV.VVLD.HHZ. 2023-07-05T12:08:22.58 0.6 undecidable manual S 99 57.3981 50 0.65 40
IV.LPEL.HHE. 2023-07-05T12:08:21.88 0.3 undecidable manual P 84 103.2189 50 0.55 57
IV.RNI2.HNE. 2023-07-05T12:08:21.54 0.3 undecidable manual P 105 104.2179 50 0.05 63
IV.NRCA.HHZ. 2023-07-05T12:08:20.22 0.3 undecidable manual P 8 98.5236 50 -0.4 60
IV.TERO.HHZ. 2023-07-05T12:08:20.06 0.3 undecidable manual P 36 92.0412 50 0.44 60
IV.CERA.HHZ. 2023-07-05T12:08:20.01 0.1 undecidable manual P 114 97.8243 50 -0.49 78
IV.MOMA.HHZ. 2023-07-05T12:08:20.32 0.3 undecidable manual P 342 98.8233 50 -0.35 60
IV.LATB.EHZ. 2023-07-05T12:08:20.01 0.6 undecidable manual S 178 51.2154 50 -0.27 45
IV.MCI.EHZ. 2023-07-05T12:08:19.07 0.3 undecidable manual P 125 88.9443 50 -0.06 65
IV.SMA1.EHZ. 2023-07-05T12:08:18.70 0.6 undecidable manual P 23 81.7515 50 0.67 37
IV.CESX.HHZ. 2023-07-05T12:08:17.39 0.3 undecidable manual P 338 77.9664 50 -0.06 67
IV.BARO.EHZ. 2023-07-05T12:08:17.96 0.6 undecidable manual P 294 79.8645 50 0.22 43
IV.PTQR.HHZ. 2023-07-05T12:08:17.35 0.6 undecidable manual S 79 38.9277 50 0.36 45
IV.FIAM.HHZ. 2023-07-05T12:08:16.64 0.6 undecidable manual S 23 37.7289 50 -0.04 48
IV.ARRO.EHZ. 2023-07-05T12:08:16.24 0.3 undecidable manual P 349 70.6737 50 -0.08 67
IV.GIGS.HHN. 2023-07-05T12:08:16.87 0.3 undecidable manual P 43 75.9684 50 -0.28 64
IV.GAVE.EHN. 2023-07-05T12:08:16.72 0.3 undecidable manual P 358 81.8514 50 -1.33 41
IV.CAMP.HHE. 2023-07-05T12:08:16.97 0.3 undecidable manual P 31 75.1692 50 -0.05 67
IV.LNSS.HHZ. 2023-07-05T12:08:16.12 0.3 undecidable manual P 7 72.372 50 -0.46 62
IV.T0110.HHZ. 2023-07-05T12:08:16.96 0.3 undecidable manual P 66 75.4689 50 -0.1 66
IT.MMP1.HGE. 2023-07-05T12:08:16.16 0.6 undecidable manual S 335 36.1416 50 -0.1 47
IV.GUAR.HHZ. 2023-07-05T12:08:15.88 0.6 undecidable manual S 120 35.742 50 -0.27 46
IV.LRP.EHZ. 2023-07-05T12:08:15.03 0.3 undecidable manual P 122 63.5919 50 -0.2 66
IV.SAMA.HNZ. 2023-07-05T12:08:15.81 0.6 undecidable manual S 236 34.4433 50 0 49
IV.RM33.EHZ. 2023-07-05T12:08:15.32 0.1 undecidable manual P 20 65.49 50 -0.21 88
IV.VIVA.HHZ. 2023-07-05T12:08:14.09 0.6 undecidable manual S 211 26.5512 110 0.47 45
IV.VVLD.HHZ. 2023-07-05T12:08:14.00 0.1 undecidable manual P 99 57.3981 50 -0.28 88
IV.RDP.HHN. 2023-07-05T12:08:14.48 0.6 undecidable manual S 221 28.6491 50 0.23 47
MN.AQU.HNN. 2023-07-05T12:08:14.80 0.3 undecidable manual P 41 58.5969 50 0.34 65
IV.RMP.HHZ. 2023-07-05T12:08:13.21 0.6 undecidable manual S 231 24.9528 111 0.13 48
IV.LATB.EHZ. 2023-07-05T12:08:12.69 0.3 undecidable manual P 178 51.2154 50 -0.63 61
IV.MTCE.HHZ. 2023-07-05T12:08:11.01 0.6 undecidable manual S 295 17.7711 118 0.19 48
IV.FIAM.HHZ. 2023-07-05T12:08:11.15 0.3 undecidable manual P 23 37.7289 50 -0.1 71
IV.PTQR.HHZ. 2023-07-05T12:08:11.35 0.1 undecidable manual P 79 38.9277 50 -0.07 95
IT.CSO1.HGE. 2023-07-05T12:08:11.79 0.6 undecidable manual S 37 20.3685 115 0.16 48
IV.RDP.HHN. 2023-07-05T12:08:10.08 0.1 undecidable manual P 221 28.6491 50 0.24 94
IV.SAMA.HNZ. 2023-07-05T12:08:10.93 0.3 undecidable manual P 236 34.4433 50 0.19 70
IT.MMP1.HGE. 2023-07-05T12:08:10.59 0.3 undecidable manual P 335 36.1416 50 -0.41 67
IV.GUAR.HHZ. 2023-07-05T12:08:10.72 0.1 undecidable manual P 120 35.742 50 -0.22 93
IV.VIVA.HHZ. 2023-07-05T12:08:09.95 0.3 undecidable manual P 211 26.5512 110 0.47 67
IV.RCAV.EHZ. 2023-07-05T12:08:08.87 0.3 undecidable manual S 177 11.9769 129 -0.26 72
IV.RMP.HHZ. 2023-07-05T12:08:08.94 0.3 undecidable manual P 231 24.9528 111 -0.22 71
IT.CSO1.HGE. 2023-07-05T12:08:08.65 0.3 undecidable manual P 37 20.3685 115 0.32 70
IV.MTCE.HHZ. 2023-07-05T12:08:07.67 0.1 positive manual P 295 17.7711 118 -0.19 96
IV.CERT.HNZ. 2023-07-05T12:08:07.35 0.3 undecidable manual S 100 3.6963 159 -0.02 77
IV.RCAV.EHZ. 2023-07-05T12:08:06.83 0.1 undecidable manual P 177 11.9769 129 -0.06 100
IV.CERT.HNZ. 2023-07-05T12:08:06.08 0.1 negative manual P 100 3.6963 159 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHE. ML:2.9 0.016399999999999998 0.44 AML other m 2023-07-05T12:08:08.19
IV.CERT.HNE. ML:3.3 0.03484999999999999 0.46 AML other m 2023-07-05T12:08:08.19
IV.CERT.HNN. ML:3.1 0.021700000000000004 0.42 AML other m 2023-07-05T12:08:08.89
IV.CERT.HHN. ML:3.1 0.022949999999999998 0.42 AML other m 2023-07-05T12:08:08.89
IV.RCAV.EHN. ML:2.8 0.006849999999999999 0.2 AML other m 2023-07-05T12:08:09.27
IV.RCAV.EHE. ML:2.8 0.007959999999999998 0.38 AML other m 2023-07-05T12:08:10.34
IV.MTCE.HHE. ML:2.4 0.00196 0.42 AML other m 2023-07-05T12:08:12.37
IV.MTCE.HHN. ML:2.5 0.0024100000000000002 0.5 AML other m 2023-07-05T12:08:12.41
IV.GUAR.HHE. ML:2.7 0.0022 1.66 AML other m 2023-07-05T12:08:17.04
IV.GUAR.HNE. ML:2.7 0.0020800000000000003 1.66 AML other m 2023-07-05T12:08:17.05
IV.PTQR.HHN. ML:2.3 0.0007889999999999999 1.12 AML other m 2023-07-05T12:08:18.96
IV.GUAR.HHN. ML:2.6 0.0016799999999999999 0.46 AML other m 2023-07-05T12:08:18.83
IV.GUAR.HNN. ML:2.6 0.0015949999999999998 0.48 AML other m 2023-07-05T12:08:18.84
IV.PTQR.HHE. ML:2.3 0.0007515000000000001 0.62 AML other m 2023-07-05T12:08:19.42
IV.FIAM.HNN. ML:2.4 0.0009855 0.4 AML other m 2023-07-05T12:08:20.85
IV.FIAM.HHN. ML:2.4 0.0009824999999999999 0.4 AML other m 2023-07-05T12:08:20.85
IV.LATB.EHE. ML:1.8 0.0001645 0.78 AML other m 2023-07-05T12:08:20.49
IV.LATB.EHN. ML:1.7 0.00012185000000000001 1.04 AML other m 2023-07-05T12:08:21.22
IV.FIAM.HHE. ML:2.5 0.0012349999999999998 1.48 AML other m 2023-07-05T12:08:24.13
IV.FIAM.HNE. ML:2.7 0.0017800000000000001 1.48 AML other m 2023-07-05T12:08:24.13
IV.VVLD.HHE. ML:2.4 0.0005164999999999999 0.46 AML other m 2023-07-05T12:08:27.99
IV.ARRO.EHE. ML:2.4 0.000384 1.04 AML other m 2023-07-05T12:08:28.15
IV.LRP.EHN. ML:2.1 0.0002575 0.32 AML other m 2023-07-05T12:08:28.78
IV.LRP.EHE. ML:2.6 0.0007585 1.68 AML other m 2023-07-05T12:08:29.12
IV.VVLD.HHN. ML:2.5 0.0007215 0.56 AML other m 2023-07-05T12:08:29.17
IV.RM33.EHE. ML:2.4 0.000474 0.64 AML other m 2023-07-05T12:08:29.19
IV.RM33.HNE. ML:2.4 0.0005329999999999999 0.66 AML other m 2023-07-05T12:08:29.18
IV.CESX.HHN. ML:2.5 0.0004515 0.44 AML other m 2023-07-05T12:08:29.70
IV.ARRO.EHN. ML:2.5 0.00046899999999999996 0.24 AML other m 2023-07-05T12:08:29.62
IV.BARO.EHN. ML:2.3 0.0003015 0.36 AML other m 2023-07-05T12:08:31.36
IV.BARO.HNN. ML:2.4 0.0003255 0.36 AML other m 2023-07-05T12:08:31.36
IV.RM33.EHN. ML:2.4 0.0004375 0.72 AML other m 2023-07-05T12:08:32.44
IV.RM33.HNN. ML:2.4 0.0004845 0.36 AML other m 2023-07-05T12:08:32.45
IV.CESX.HHE. ML:2.5 0.00048499999999999997 0.38 AML other m 2023-07-05T12:08:32.91
IV.LNSS.HHE. ML:2.5 0.0005285 1.36 AML other m 2023-07-05T12:08:32.07
IV.LNSS.HHN. ML:2.6 0.000635 1.08 AML other m 2023-07-05T12:08:32.81
IV.MCI.EHN. ML:2.7 0.0006490000000000001 0.24 AML other m 2023-07-05T12:08:33.12
IV.MCI.EHE. ML:3.0 0.0010750000000000002 1.72 AML other m 2023-07-05T12:08:34.95
IV.SMA1.EHN. ML:2.6 0.0005769999999999999 0.44 AML other m 2023-07-05T12:08:36.53
IV.MOMA.HNE. ML:2.7 0.000484 0.64 AML other m 2023-07-05T12:08:37.40
IV.MOMA.HHE. ML:2.7 0.00045799999999999997 0.64 AML other m 2023-07-05T12:08:37.08
IV.MOMA.HNN. ML:2.6 0.00035549999999999997 0.54 AML other m 2023-07-05T12:08:37.58
IV.MOMA.HHN. ML:2.5 0.0003415 0.54 AML other m 2023-07-05T12:08:37.85
IV.BARO.HNE. ML:2.4 0.00033699999999999995 0.48 AML other m 2023-07-05T12:08:37.36
IV.BARO.EHE. ML:2.3 0.000252 0.42 AML other m 2023-07-05T12:08:37.60
IV.SMA1.EHE. ML:2.7 0.0006599999999999999 0.44 AML other m 2023-07-05T12:08:38.31
IV.CERA.HHE. ML:2.4 0.000286 0.36 AML other m 2023-07-05T12:08:38.66
IV.NRCA.HHN. ML:2.5 0.00033150000000000003 1.28 AML other m 2023-07-05T12:08:38.15
IV.TERO.HHE. ML:2.4 0.0002585 0.5 AML other m 2023-07-05T12:08:39.35
IV.TERO.HHN. ML:2.3 0.00023349999999999998 0.56 AML other m 2023-07-05T12:08:40.81
IV.NRCA.HHE. ML:2.4 0.00023299999999999997 1.02 AML other m 2023-07-05T12:08:40.62
IV.CERA.HHN. ML:2.4 0.000258 1.56 AML other m 2023-07-05T12:08:43.83
IV.MGAB.HNE. ML:2.5 0.00022950000000000002 0.54 AML other m 2023-07-05T12:08:44.70
IV.MGAB.HNN. ML:2.6 0.00027600000000000004 0.78 AML other m 2023-07-05T12:08:44.45
IV.MGAB.HHE. ML:2.5 0.00021550000000000003 1 AML other m 2023-07-05T12:08:45.70
IV.MGAB.HHN. ML:2.4 0.000153 1.16 AML other m 2023-07-05T12:08:47.12
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