Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 08-06-2023 and time 06:37:06 (Italy) in region 2 km W Ciciliano (RM)

A magnitude ML 1.4 earthquake occured in region: 2 km W Ciciliano (RM), on

  • 08-06-2023 04:37:06 (UTC)
  • 08-06-2023 06:37:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9600, 12.9150 at 8 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
Sambuci RM 4 925 2261
Castel Madama RM 4 7399 9660
San Gregorio da Sassola RM 6 1619 11279
Cerreto Laziale RM 6 1118 12397
Saracinesco RM 6 185 12582
Casape RM 6 744 13326
Vicovaro RM 6 4019 17345
Pisoniano RM 7 770 18115
Gerano RM 7 1263 19378
Mandela RM 8 917 20295
Poli RM 8 2418 22713
Anticoli Corrado RM 8 915 23628
San Polo dei Cavalieri RM 9 2992 26620
Rocca Canterano RM 9 196 26816
Marano Equo RM 9 779 27595
Tivoli RM 10 56533 84128
Roviano RM 10 1351 85479
Agosta RM 10 1765 87244
Roccagiovine RM 10 263 87507
San Vito Romano RM 10 3273 90780
Canterano RM 10 351 91131
Rocca Santo Stefano RM 11 975 92106
Cineto Romano RM 11 601 92707
Capranica Prenestina RM 11 351 93058
Marcellina RM 11 7280 100338
Gallicano nel Lazio RM 13 6334 106672
Arsoli RM 13 1586 108258
Castel San Pietro Romano RM 13 902 109160
Bellegra RM 13 2887 112047
Rocca di Cave RM 13 377 112424
Licenza RM 13 1011 113435
Cervara di Roma RM 13 455 113890
Riofreddo RM 13 781 114671
Palestrina RM 14 21672 136343
Oricola AQ 14 1244 137587
Olevano Romano RM 15 6687 144274
Rocca di Botte AQ 15 856 145130
Genazzano RM 15 6036 151166
Zagarolo RM 15 17843 169009
Percile RM 15 255 169264
Vallinfreda RM 16 283 169547
Roiate RM 16 737 170284
Cave RM 16 11287 181571
Subiaco RM 16 9074 190645
Guidonia Montecelio RM 16 88673 279318
Palombara Sabina RM 17 13269 292587
Affile RM 17 1548 294135
Camerata Nuova RM 17 447 294582
Vivaro Romano RM 18 182 294764
San Cesareo RM 18 15153 309917
Monteflavio RM 18 1348 311265
Sant'Angelo Romano RM 19 5018 316283
Arcinazzo Romano RM 19 1348 317631
Pereto AQ 19 682 318313
Orvinio RI 19 405 318718
Labico RM 19 6379 325097
Colonna RM 19 4287 329384

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Tivoli (56533 inhabitants)
16 Km E of Guidonia Montecelio (88673 inhabitants)
32 Km NE of Velletri (53303 inhabitants)
36 Km E of Roma (2864731 inhabitants)
46 Km NE of Aprilia (73446 inhabitants)
47 Km NE of Pomezia (62966 inhabitants)
55 Km N of Latina (125985 inhabitants)
59 Km SW of L'Aquila (69753 inhabitants)
60 Km E of Fiumicino (78395 inhabitants)
62 Km NE of Anzio (54211 inhabitants)
70 Km SE of Terni (111501 inhabitants)
84 Km SE of Viterbo (67173 inhabitants)
94 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 1.4 2023-06-08
04:37:06		 41.9603 12.9147 8 2023-06-08
04:41:42		 Sala Sismica INGV-Roma 118198111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-08 04:37:06 ± 0.32
Latitude 41.9603 ± 0.0090
Longitude 12.9147 ± 0.0242
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118198111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1985
Semi-minor axis of confidence ellipse (meter) 944
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 1990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 217
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53510
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 118198111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-08 04:41:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2023-06-08T04:37:47.99 3.0 undecidable manual S 0.46 0
IV.POFI.HHZ. 2023-06-08T04:37:28.31 3.0 undecidable manual S -0.45 0
IV.GIUL.HHZ. 2023-06-08T04:37:24.39 0.1 undecidable manual S 148 52.7028 50 0.93 72
IV.VVLD.HHZ. 2023-06-08T04:37:24.88 0.1 undecidable manual S 100 59.3961 50 -0.35 88
IV.FDMO.HHZ. 2023-06-08T04:37:24.64 3.0 negative manual P -0.8 0
IV.NRCA.HHZ. 2023-06-08T04:37:21.82 3.0 undecidable manual P 0.08 0
IV.PTQR.HHZ. 2023-06-08T04:37:20.14 0.1 undecidable manual S 80 40.626 50 -0.09 96
IV.FIAM.HHZ. 2023-06-08T04:37:19.40 0.1 undecidable manual S 26 38.0286 50 -0.12 95
IV.POFI.HHZ. 2023-06-08T04:37:18.36 3.0 positive manual P -0.24 0
IV.VVLD.HHZ. 2023-06-08T04:37:16.95 1.0 positive manual P 100 59.3961 50 -0.24 22
IV.GIUL.HHZ. 2023-06-08T04:37:15.52 0.6 positive manual P 148 52.7028 50 -0.65 40
IV.PTQR.HHZ. 2023-06-08T04:37:14.25 0.6 negative manual P 80 40.626 50 -0.05 48
IV.FIAM.HHZ. 2023-06-08T04:37:14.13 0.1 undecidable manual P 26 38.0286 50 0.24 93
IV.RCAV.EHZ. 2023-06-08T04:37:11.08 0.1 undecidable manual S 169 12.7761 121 -0.33 95
IV.CERT.HHZ. 2023-06-08T04:37:09.72 0.1 undecidable manual S 103 5.6943 144 0.16 100
IV.RCAV.EHZ. 2023-06-08T04:37:08.37 1.0 undecidable manual P 169 12.7761 121 -0.84 20
IV.CERT.HHZ. 2023-06-08T04:37:08.44 0.1 negative manual P 103 5.6943 144 0.3 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHE. ML:1.9 0.0014 0.72 AML other m 2023-06-08T04:37:10.18
IV.CERT.HNE. ML:2.2 0.00321 0.98 AML other m 2023-06-08T04:37:10.18
IV.CERT.HHN. ML:2.0 0.001915 0.44 AML other m 2023-06-08T04:37:10.58
IV.CERT.HNN. ML:2.0 0.0017900000000000001 0.4 AML other m 2023-06-08T04:37:10.57
IV.RCAV.EHE. ML:1.7 0.000647 0.66 AML other m 2023-06-08T04:37:11.25
IV.RCAV.EHN. ML:1.7 0.000607 0.36 AML other m 2023-06-08T04:37:12.75
IV.PTQR.HHN. ML:1.5 0.00010295 0.38 AML other m 2023-06-08T04:37:20.45
IV.PTQR.HHE. ML:1.4 0.00009675000000000001 0.88 AML other m 2023-06-08T04:37:20.45
IV.FIAM.HHE. ML:1.2 0.00006220000000000001 0.54 AML other m 2023-06-08T04:37:24.03
IV.GIUL.HHE. ML:1.4 0.00005885 1.6 AML other m 2023-06-08T04:37:24.03
IV.GIUL.HHN. ML:1.4 0.000061 0.5 AML other m 2023-06-08T04:37:24.92
IV.FIAM.HHN. ML:1.2 0.00006275 0.42 AML other m 2023-06-08T04:37:26.58
IV.VVLD.HHE. ML:1.4 0.000057499999999999995 0.4 AML other m 2023-06-08T04:37:30.36
IV.VVLD.HHN. ML:1.5 0.0000644 0.3 AML other m 2023-06-08T04:37:31.49
IV.POFI.HHN. ML:1.2 0.00002325 0.56 AML other m 2023-06-08T04:37:31.48
IV.POFI.HHE. ML:1.2 0.00002285 0.52 AML other m 2023-06-08T04:37:36.67
IV.NRCA.HHN. ML:1.3 0.00001785 0.46 AML other m 2023-06-08T04:37:41.48
IV.NRCA.HHE. ML:1.3 0.00002065 0.46 AML other m 2023-06-08T04:37:42.34
IV.FDMO.HHE. ML:1.1 0.00001216 0.22 AML other m 2023-06-08T04:37:47.94
IV.FDMO.HHN. ML:1.1 0.000011400000000000001 1.28 AML other m 2023-06-08T04:37:48.80
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