Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 22-06-2023 and time 07:48:24 (Italy) in region 2 km SW Ciciliano (RM)

A magnitude ML 2.1 earthquake occured in region: 2 km SW Ciciliano (RM), on

  • 22-06-2023 05:48:24 (UTC)
  • 22-06-2023 07:48:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9440, 12.9330 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 4 1118 2454
Pisoniano RM 5 770 3224
Sambuci RM 5 925 4149
Gerano RM 5 1263 5412
Casape RM 6 744 6156
San Gregorio da Sassola RM 6 1619 7775
Castel Madama RM 6 7399 15174
Poli RM 7 2418 17592
Saracinesco RM 7 185 17777
Rocca Canterano RM 8 196 17973
San Vito Romano RM 8 3273 21246
Rocca Santo Stefano RM 9 975 22221
Vicovaro RM 9 4019 26240
Canterano RM 9 351 26591
Anticoli Corrado RM 9 915 27506
Marano Equo RM 9 779 28285
Capranica Prenestina RM 9 351 28636
Agosta RM 9 1765 30401
Mandela RM 10 917 31318
Roviano RM 11 1351 32669
Bellegra RM 11 2887 35556
San Polo dei Cavalieri RM 11 2992 38548
Rocca di Cave RM 11 377 38925
Castel San Pietro Romano RM 11 902 39827
Tivoli RM 11 56533 96360
Palestrina RM 12 21672 118032
Roccagiovine RM 12 263 118295
Cineto Romano RM 12 601 118896
Gallicano nel Lazio RM 12 6334 125230
Cervara di Roma RM 12 455 125685
Olevano Romano RM 12 6687 132372
Genazzano RM 13 6036 138408
Arsoli RM 13 1586 139994
Roiate RM 13 737 140731
Marcellina RM 14 7280 148011
Cave RM 14 11287 159298
Subiaco RM 14 9074 168372
Riofreddo RM 14 781 169153
Zagarolo RM 14 17843 186996
Rocca di Botte AQ 15 856 187852
Oricola AQ 15 1244 189096
Licenza RM 15 1011 190107
Affile RM 15 1548 191655
Vallinfreda RM 17 283 191938
Arcinazzo Romano RM 17 1348 193286
Camerata Nuova RM 17 447 193733
Percile RM 17 255 193988
San Cesareo RM 17 15153 209141
Serrone FR 18 3099 212240
Labico RM 18 6379 218619
Guidonia Montecelio RM 18 88673 307292
Valmontone RM 19 15959 323251
Vivaro Romano RM 19 182 323433
Paliano FR 19 8281 331714
Pereto AQ 19 682 332396
Colonna RM 19 4287 336683
Palombara Sabina RM 20 13269 349952

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)
38 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)
59 Km SW of L'Aquila (69753 inhabitants)
61 Km NE of Anzio (54211 inhabitants)
61 Km E of Fiumicino (78395 inhabitants)
73 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
Reviewed
Rev100 		ML 2.1 2023-06-22
05:48:24		 41.9443 12.9332 9 2023-06-22
06:03:00		 Sala Sismica INGV-Roma 118633621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-22 05:48:24 ± 0.06
Latitude 41.9443 ± 0.0036
Longitude 12.9332 ± 0.0048
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 118633621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 405
Semi-minor axis of confidence ellipse (meter) 404
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72126
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 118633621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-22 06:03:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EPZF.HHZ. 2023-06-22T05:50:24.45 3.0 undecidable manual Sn -2.25 0
IV.SPS2.HHZ. 2023-06-22T05:50:12.80 3.0 undecidable manual Sg 2.58 0
IV.USI.HHZ. 2023-06-22T05:49:59.99 3.0 undecidable manual Sg 0.99 0
IV.ACATE.EHZ. 2023-06-22T05:49:52.85 3.0 negative manual Pg 9.94 0
IV.RSM2.HHZ. 2023-06-22T05:49:29.80 3.0 undecidable manual Sg 2.75 0
4P.IT08A.HHZ. 2023-06-22T05:49:19.67 3.0 undecidable manual Pg 4.93 0
IV.CMPR.HHZ. 2023-06-22T05:49:02.45 3.0 positive manual Pn -4 0
IV.FDMO.HHZ. 2023-06-22T05:49:02.22 3.0 undecidable manual S -1.55 0
IV.FRON.EHZ. 2023-06-22T05:48:55.69 3.0 negative manual P 1.85 0
IV.ATPI.EHZ. 2023-06-22T05:48:53.28 3.0 negative manual P -0.23 0
IV.ARVD.HHZ. 2023-06-22T05:48:53.02 3.0 undecidable manual P -0.45 0
IV.BARO.EHZ. 2023-06-22T05:48:49.40 0.3 undecidable manual S 295 80.0643 50 0.69 57
IV.SNTG.HHZ. 2023-06-22T05:48:49.29 3.0 positive manual P -0.84 0
IV.CSP1.EHZ. 2023-06-22T05:48:48.23 3.0 negative manual P 0.11 0
IV.CESX.HHZ. 2023-06-22T05:48:48.80 0.3 undecidable manual S 339 78.9654 50 0.38 63
IV.MF5.EHZ. 2023-06-22T05:48:48.76 3.0 negative manual P 1.53 0
IV.EL6.EHZ. 2023-06-22T05:48:48.35 3.0 undecidable manual P -2.89 0
IV.OFFI.HHZ. 2023-06-22T05:48:47.05 3.0 positive manual P -0.67 0
IV.CESI.HHZ. 2023-06-22T05:48:44.70 3.0 negative manual P -1.46 0
IV.LRP.EHZ. 2023-06-22T05:48:44.58 3.0 undecidable manual S -4.35 0
IV.TERO.HHZ. 2023-06-22T05:48:43.76 3.0 undecidable manual P 1.43 0
IV.NRCA.HHZ. 2023-06-22T05:48:41.87 3.0 negative manual P -1.32 0
IV.LATB.EHZ. 2023-06-22T05:48:40.78 0.3 undecidable manual S 177 50.0166 50 0.08 71
IV.T0110.HHZ. 2023-06-22T05:48:39.26 3.0 undecidable manual P -0.63 0
IV.BARO.EHZ. 2023-06-22T05:48:38.50 0.1 undecidable manual P 295 80.0643 50 0.02 91
IV.INTR.HHZ. 2023-06-22T05:48:38.81 3.0 undecidable manual P -2.08 0
IV.CESX.HHZ. 2023-06-22T05:48:38.73 0.1 undecidable manual P 339 78.9654 50 0.41 84
IV.PTQR.HHZ. 2023-06-22T05:48:38.10 0.3 undecidable manual S 77 39.5271 50 0.21 70
IV.LNSS.HHZ. 2023-06-22T05:48:37.68 0.1 undecidable manual P 7 73.5708 50 0.19 89
IT.MMP1.HGE. 2023-06-22T05:48:36.80 0.3 undecidable manual S 336 37.0296 50 -0.44 67
IV.GUAR.HHZ. 2023-06-22T05:48:36.57 0.3 undecidable manual S 118 35.4423 50 -0.24 71
IV.LRP.EHZ. 2023-06-22T05:48:35.99 3.0 negative manual P -2.53 0
IV.VVLD.HHZ. 2023-06-22T05:48:35.18 3.0 negative manual P -1.85 0
IV.RDP.HHE. 2023-06-22T05:48:34.48 0.3 undecidable manual S 222 27.4503 109 -0.1 74
IV.LATB.EHZ. 2023-06-22T05:48:33.69 0.1 undecidable manual P 177 50.0166 50 -0.17 93
IV.RMP.HHZ. 2023-06-22T05:48:33.21 0.3 undecidable manual S 232 23.8539 111 -0.2 72
IV.PTQR.HHZ. 2023-06-22T05:48:32.25 0.1 undecidable manual P 77 39.5271 50 0.02 98
IV.FIAM.HHZ. 2023-06-22T05:48:31.76 0.1 undecidable manual P 23 38.9277 50 -0.39 90
IT.MMP1.HGE. 2023-06-22T05:48:31.44 0.1 undecidable manual P 336 37.0296 50 -0.42 90
IV.GUAR.HHZ. 2023-06-22T05:48:31.37 0.1 undecidable manual P 118 35.4423 50 -0.24 94
IV.MTCE.HHZ. 2023-06-22T05:48:31.15 0.3 undecidable manual S 299 17.9709 117 -0.39 70
IV.VIVA.HHZ. 2023-06-22T05:48:30.00 0.1 undecidable manual P 212 25.3524 110 0.07 99
IV.RDP.HHE. 2023-06-22T05:48:30.45 0.1 undecidable manual P 222 27.4503 109 0.12 98
IV.RCAV.EHZ. 2023-06-22T05:48:29.39 0.3 undecidable manual S 175 10.7781 131 -0.08 76
IV.RMP.HHZ. 2023-06-22T05:48:29.75 0.1 undecidable manual P 232 23.8539 111 0.1 99
IV.CERT.HHZ. 2023-06-22T05:48:28.00 0.3 undecidable manual S 83 3.996 157 -0.05 78
IV.MTCE.HHZ. 2023-06-22T05:48:28.48 0.1 undecidable manual P 299 17.9709 117 -0.09 100
IV.RCAV.EHZ. 2023-06-22T05:48:27.65 0.1 undecidable manual P 175 10.7781 131 0.28 97
IV.CERT.HHZ. 2023-06-22T05:48:26.89 0.1 undecidable manual P 83 3.996 157 0.34 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RCAV.EHN. ML:2.4 0.0032749999999999997 0.46 AML other m 2023-06-22T05:48:30.93
IV.RCAV.EHE. ML:2.6 0.004505 0.28 AML other m 2023-06-22T05:48:31.37
IV.RMP.HHE. ML:2.8 0.00354 0.82 AML other m 2023-06-22T05:48:34.62
IV.RMP.HHN. ML:2.8 0.00447 0.7 AML other m 2023-06-22T05:48:36.00
IV.GUAR.HHE. ML:2.4 0.000958 0.32 AML other m 2023-06-22T05:48:38.88
IV.GUAR.HNE. ML:2.4 0.00093 0.3 AML other m 2023-06-22T05:48:38.88
IV.PTQR.HHN. ML:2.0 0.000395 0.88 AML other m 2023-06-22T05:48:38.41
IV.GUAR.HHN. ML:2.3 0.0007484999999999999 0.36 AML other m 2023-06-22T05:48:40.82
IV.GUAR.HNN. ML:2.2 0.0007025 0.38 AML other m 2023-06-22T05:48:40.83
IV.PTQR.HHE. ML:2.0 0.0003795 1.46 AML other m 2023-06-22T05:48:41.16
IV.LATB.EHN. ML:1.5 0.00008740000000000001 0.54 AML other m 2023-06-22T05:48:41.48
IV.LATB.EHE. ML:1.4 0.0000645 1.34 AML other m 2023-06-22T05:48:43.76
IV.LRP.EHE. ML:2.2 0.0003015 0.52 AML other m 2023-06-22T05:48:45.56
IV.FIAM.HNN. ML:2.0 0.00036150000000000006 0.64 AML other m 2023-06-22T05:48:45.33
IV.FIAM.HHE. ML:1.9 0.00026250000000000004 1.02 AML other m 2023-06-22T05:48:46.71
IV.FIAM.HNE. ML:2.1 0.0004415 1.02 AML other m 2023-06-22T05:48:46.21
IV.FIAM.HHN. ML:2.0 0.000345 0.46 AML other m 2023-06-22T05:48:46.24
IV.VVLD.HHE. ML:2.1 0.00026849999999999997 0.64 AML other m 2023-06-22T05:48:48.57
IV.LRP.EHN. ML:1.8 0.00012675 0.46 AML other m 2023-06-22T05:48:49.74
IV.VVLD.HHN. ML:2.0 0.0002405 1.42 AML other m 2023-06-22T05:48:50.24
IV.CESX.HHN. ML:2.0 0.0001535 0.86 AML other m 2023-06-22T05:48:51.34
IV.BARO.EHN. ML:2.0 0.0001455 0.3 AML other m 2023-06-22T05:48:52.40
IV.BARO.EHE. ML:2.0 0.00014800000000000002 0.66 AML other m 2023-06-22T05:48:53.50
IV.LNSS.HHE. ML:2.1 0.0001875 0.68 AML other m 2023-06-22T05:48:53.61
IV.CESX.HHE. ML:2.0 0.000129 0.64 AML other m 2023-06-22T05:48:54.16
IV.LNSS.HHN. ML:2.2 0.0002455 1.08 AML other m 2023-06-22T05:48:54.22
IV.T0110.HHE. ML:2.1 0.000184 0.4 AML other m 2023-06-22T05:48:55.33
IV.TERO.HHE. ML:1.7 0.000049199999999999997 0.82 AML other m 2023-06-22T05:48:58.20
IV.NRCA.HHN. ML:2.0 0.0001047 1.32 AML other m 2023-06-22T05:48:59.00
IV.T0110.HHN. ML:2.1 0.000187 1.12 AML other m 2023-06-22T05:48:59.81
IV.TERO.HHN. ML:1.8 0.00006425 0.92 AML other m 2023-06-22T05:48:59.88
IV.NRCA.HHE. ML:2.0 0.00009045 1.46 AML other m 2023-06-22T05:49:00.92
IV.INTR.HHE. ML:2.0 0.0001395 0.52 AML other m 2023-06-22T05:49:00.99
IV.INTR.HHN. ML:2.2 0.000214 1.3 AML other m 2023-06-22T05:49:01.10
IV.CESI.HHE. ML:2.0 0.00007745 1.4 AML other m 2023-06-22T05:49:02.84
IV.CESI.HHN. ML:2.1 0.00010345 0.32 AML other m 2023-06-22T05:49:05.38
IV.FDMO.HHN. ML:1.9 0.00005685 0.76 AML other m 2023-06-22T05:49:06.59
IV.MF5.EHE. ML:2.3 0.00012754999999999998 0.56 AML other m 2023-06-22T05:49:07.11
IV.MF5.EHN. ML:2.2 0.00011810000000000001 0.5 AML other m 2023-06-22T05:49:07.79
IV.FDMO.HHE. ML:1.9 0.0000585 0.76 AML other m 2023-06-22T05:49:08.51
IV.CSP1.EHN. ML:2.3 0.0001211 0.82 AML other m 2023-06-22T05:49:12.10
IV.CSP1.EHE. ML:2.4 0.00016749999999999998 1.32 AML other m 2023-06-22T05:49:12.27
IV.OFFI.HHN. ML:2.6 0.000266 0.58 AML other m 2023-06-22T05:49:13.11
IV.SNTG.HHN. ML:1.7 0.000025750000000000002 0.5 AML other m 2023-06-22T05:49:13.94
IV.OFFI.HHE. ML:2.3 0.000146 1.24 AML other m 2023-06-22T05:49:15.31
IV.SNTG.HHE. ML:1.7 0.0000262 0.72 AML other m 2023-06-22T05:49:17.45
IV.EPZF.HHE. ML:4.0 0.00035 0.46 AML other m 2023-06-22T05:50:09.07
IV.EPZF.HHN. ML:3.9 0.000277 1.44 AML other m 2023-06-22T05:50:12.14
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