Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 25-11-2022 and time 02:47:30 (UTC) in region 2 km SE Guidonia Montecelio (RM)

A magnitude ML 1.3 earthquake occured in region: 2 km SE Guidonia Montecelio (RM), on

  • 25-11-2022 02:47:30 (UTC)
  • 25-11-2022 03:47:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.9880, 12.7400 at 9 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
Guidonia Montecelio RM 2 88673 88673
Tivoli RM 6 56533 145206
Sant'Angelo Romano RM 6 5018 150224
Marcellina RM 7 7280 157504
San Polo dei Cavalieri RM 9 2992 160496
Palombara Sabina RM 9 13269 173765
Mentana RM 10 22921 196686
Fonte Nuova RM 10 32562 229248
Castel Madama RM 11 7399 236647
Monterotondo RM 12 40830 277477
Vicovaro RM 13 4019 281496
San Gregorio da Sassola RM 13 1619 283115
Gallicano nel Lazio RM 15 6334 289449
Moricone RM 15 2650 292099
Roccagiovine RM 15 263 292362
Casape RM 15 744 293106
Monteflavio RM 16 1348 294454
Mandela RM 16 917 295371
Sambuci RM 16 925 296296
Montelibretti RM 16 5323 301619
Licenza RM 17 1011 302630
Poli RM 17 2418 305048
Ciciliano RM 17 1336 306384
Colonna RM 17 4287 310671
Montorio Romano RM 18 1984 312655
Saracinesco RM 18 185 312840
Zagarolo RM 18 17843 330683
Percile RM 19 255 330938
San Cesareo RM 19 15153 346091
Monte Porzio Catone RM 19 8693 354784
Cineto Romano RM 20 601 355385
Nerola RM 20 1926 357311
Monte Compatri RM 20 11978 369289

Municipalities with at least 50000 inhabitants

An earthquake occurred to
2 Km SE of Guidonia Montecelio (88673 inhabitants)
6 Km W of Tivoli (56533 inhabitants)
24 Km E of Roma (2864731 inhabitants)
34 Km N of Velletri (53303 inhabitants)
40 Km NE of Pomezia (62966 inhabitants)
44 Km N of Aprilia (73446 inhabitants)
48 Km NE of Fiumicino (78395 inhabitants)
59 Km N of Latina (125985 inhabitants)
61 Km N of Anzio (54211 inhabitants)
64 Km S of Terni (111501 inhabitants)
68 Km SW of L'Aquila (69753 inhabitants)
71 Km SE of Viterbo (67173 inhabitants)
79 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 1.3 2022-11-25
02:47:30		 41.988 12.7403 9 2024-03-01
15:28:25		 Bollettino Sismico Italiano INGV 118243731
Reviewed
Rev100 		ML 1.5 2022-11-25
02:47:30		 41.988 12.7327 10 2022-11-25
02:58:04		 Sala Sismica INGV-Roma 112186801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-11-25 02:47:30 ± 0.08
Latitude 41.9880 ± 0.0045
Longitude 12.7403 ± 0.0085
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118243731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 639
Semi-minor axis of confidence ellipse (meter) 387
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.65291
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 112186801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-11-25 02:58:04

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 118243731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-09 15:00:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TOLF.HHN. 2022-11-25T02:47:50.39 0.6 undecidable manual S 278 61.5939 50 0.53 41
IV.FIAM.HHZ. 2022-11-25T02:47:44.96 0.6 undecidable manual S 45 43.9227 50 -0.18 46
IV.LNSS.HNZ. 2022-11-25T02:47:43.77 0.3 undecidable manual P 20 72.4719 50 0.44 62
IV.GIUL.HHZ. 2022-11-25T02:47:41.47 0.3 undecidable manual P 138 63.8916 50 -0.53 62
IV.TOLF.HHN. 2022-11-25T02:47:41.61 0.3 undecidable manual P 278 61.5939 50 -0.03 70
IT.MMP1.HGE. 2022-11-25T02:47:41.69 0.6 undecidable manual S 1 28.9488 107 0.78 40
IV.RCAV.EHZ. 2022-11-25T02:47:39.30 0.6 undecidable manual S 133 23.0547 111 0.35 46
IV.RMP.HHZ. 2022-11-25T02:47:38.22 0.6 undecidable manual S 189 19.7691 114 0.32 47
IV.FIAM.HHZ. 2022-11-25T02:47:38.81 0.3 undecidable manual P 45 43.9227 50 -0.11 71
IV.CERT.HNN. 2022-11-25T02:47:38.50 0.6 undecidable manual S 102 20.3685 113 0.4 46
IV.SRES.HHZ. 2022-11-25T02:47:36.92 0.3 undecidable manual P 326 33.5442 50 -0.4 68
IT.MMP1.HGE. 2022-11-25T02:47:36.46 0.3 undecidable manual P 1 28.9488 107 -0.02 74
IV.RDP.HHZ. 2022-11-25T02:47:35.86 0.3 undecidable manual P 186 25.3524 109 0.07 74
IV.VIVA.HHN. 2022-11-25T02:47:35.94 0.3 undecidable manual P 175 26.4513 108 -0.06 74
IV.RCAV.EHZ. 2022-11-25T02:47:35.04 0.3 undecidable manual P 133 23.0547 111 -0.3 70
IV.RMP.HHZ. 2022-11-25T02:47:34.76 0.3 undecidable manual P 189 19.7691 114 0.02 75
IV.CERT.HNN. 2022-11-25T02:47:34.98 0.3 undecidable manual P 102 20.3685 113 0.13 73
IV.MTCE.HHZ. 2022-11-25T02:47:33.32 0.3 undecidable manual S 2 3.8961 156 -0.37 72
IV.MTCE.HHZ. 2022-11-25T02:47:32.15 0.1 negative manual P 2 3.8961 156 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RCAV.EHE. ML:1.2 0.00010545 0.24 AML other m 2022-11-25T02:47:40.60
IV.RMP.HHE. ML:1.8 0.00053 0.58 AML other m 2022-11-25T02:47:42.03
IV.RCAV.EHN. ML:1.2 0.00009415 1.78 AML other m 2022-11-25T02:47:43.10
IV.SRES.HHN. ML:0.8 0.0000307 0.5 AML other m 2022-11-25T02:47:43.11
IV.SRES.HHE. ML:0.8 0.000029664665 0.2608 AML other m 2022-11-25T02:47:44.37
IV.RMP.HHN. ML:2.0 0.0007765 1.52 AML other m 2022-11-25T02:47:44.77
IV.FIAM.HNN. ML:2.5 0.0010768597 0.5888 AML other m 2022-11-25T02:47:46.26
IV.FIAM.HNE. ML:1.6 0.000123562175 1.16 AML other m 2022-11-25T02:47:50.30
IV.FIAM.HHN. ML:1.1 0.000040443265 0.4208 AML other m 2022-11-25T02:47:51.31
IV.FIAM.HHE. ML:1.2 0.00004685 1.58 AML other m 2022-11-25T02:47:53.95
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