Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 26-11-2023 and time 23:12:55 (Italy) in region 1 km NW Sambuci (RM)

A magnitude ML 1.9 earthquake occured in region: 1 km NW Sambuci (RM), on

  • 26-11-2023 22:12:55 (UTC)
  • 26-11-2023 23:12:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.9970, 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
Sambuci RM 1 925 925
Saracinesco RM 2 185 1110
Vicovaro RM 4 4019 5129
Mandela RM 4 917 6046
Ciciliano RM 4 1336 7382
Anticoli Corrado RM 5 915 8297
Castel Madama RM 6 7399 15696
Roviano RM 6 1351 17047
Cineto Romano RM 7 601 17648
Roccagiovine RM 7 263 17911
Marano Equo RM 7 779 18690
Cerreto Laziale RM 7 1118 19808
San Polo dei Cavalieri RM 8 2992 22800
Agosta RM 8 1765 24565
Gerano RM 9 1263 25828
Arsoli RM 9 1586 27414
Rocca Canterano RM 9 196 27610
Licenza RM 9 1011 28621
Riofreddo RM 9 781 29402
San Gregorio da Sassola RM 10 1619 31021
Pisoniano RM 10 770 31791
Canterano RM 11 351 32142
Oricola AQ 11 1244 33386
Casape RM 11 744 34130
Marcellina RM 11 7280 41410
Percile RM 11 255 41665
Vallinfreda RM 11 283 41948
Cervara di Roma RM 11 455 42403
Tivoli RM 12 56533 98936
Rocca di Botte AQ 12 856 99792
Rocca Santo Stefano RM 12 975 100767
Poli RM 13 2418 103185
Vivaro Romano RM 13 182 103367
San Vito Romano RM 13 3273 106640
Camerata Nuova RM 15 447 107087
Capranica Prenestina RM 15 351 107438
Orvinio RI 15 405 107843
Bellegra RM 15 2887 110730
Monteflavio RM 15 1348 112078
Pereto AQ 16 682 112760
Palombara Sabina RM 16 13269 126029
Subiaco RM 16 9074 135103
Carsoli AQ 17 5396 140499
Gallicano nel Lazio RM 17 6334 146833
Rocca di Cave RM 17 377 147210
Castel San Pietro Romano RM 17 902 148112
Turania RI 17 241 148353
Guidonia Montecelio RM 17 88673 237026
Olevano Romano RM 17 6687 243713
Roiate RM 18 737 244450
Palestrina RM 18 21672 266122
Collalto Sabino RI 18 442 266564
Pozzaglia Sabina RI 18 360 266924
Affile RM 19 1548 268472
Sant'Angelo Romano RM 19 5018 273490
Genazzano RM 19 6036 279526
Moricone RM 19 2650 282176
Montorio Romano RM 19 1984 284160
Zagarolo RM 19 17843 302003
Arcinazzo Romano RM 20 1348 303351
Cave RM 20 11287 314638

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km E of Tivoli (56533 inhabitants)
17 Km E of Guidonia Montecelio (88673 inhabitants)
37 Km NE of Velletri (53303 inhabitants)
39 Km E of Roma (2864731 inhabitants)
51 Km NE of Aprilia (73446 inhabitants)
51 Km NE of Pomezia (62966 inhabitants)
55 Km SW of L'Aquila (69753 inhabitants)
59 Km N of Latina (125985 inhabitants)
63 Km E of Fiumicino (78395 inhabitants)
66 Km NE of Anzio (54211 inhabitants)
67 Km SE of Terni (111501 inhabitants)
83 Km SE of Viterbo (67173 inhabitants)
95 Km E of Civitavecchia (52991 inhabitants)
97 Km SW of Teramo (54892 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 1.9 2023-11-26
22:12:55		 41.9972 12.9327 9 2023-11-26
22:20:02		 Sala Sismica INGV-Roma 123474791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-26 22:12:55 ± 0.06
Latitude 41.9972 ± 0.0036
Longitude 12.9327 ± 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 123474791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 414
Semi-minor axis of confidence ellipse (meter) 312
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 26
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) 0.50362
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 123474791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-26 22:20:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2023-11-26T22:13:36.26 3.0 undecidable manual S 1.71 0
IV.FDMO.HHZ. 2023-11-26T22:13:30.47 3.0 undecidable manual S -0.07 0
IV.NRCA.HHZ. 2023-11-26T22:13:24.10 3.0 undecidable manual S -0.69 0
IV.POFI.HHZ. 2023-11-26T22:13:17.60 3.0 undecidable manual S -0.34 0
IV.CSP1.EHZ. 2023-11-26T22:13:16.40 3.0 undecidable manual P 0.57 0
IV.FDMO.HHZ. 2023-11-26T22:13:14.92 3.0 negative manual P 0.01 0
IV.ASSB.HHZ. 2023-11-26T22:13:14.97 3.0 undecidable manual P -0.23 0
IV.GIUL.HHZ. 2023-11-26T22:13:12.62 0.3 undecidable manual S 151 55.5 50 -0.14 68
IV.LATB.EHZ. 2023-11-26T22:13:12.42 0.3 undecidable manual S 177 55.8996 50 -0.44 64
IV.MOMA.HHZ. 2023-11-26T22:13:11.39 3.0 undecidable manual P -0.41 0
IV.MCI.EHZ. 2023-11-26T22:13:10.30 3.0 negative manual P -0.96 0
IV.NRCA.HHZ. 2023-11-26T22:13:10.87 3.0 negative manual P -0.81 0
IV.SMA1.EHZ. 2023-11-26T22:13:10.38 3.0 positive manual P 1.45 0
IV.INTR.HHZ. 2023-11-26T22:13:09.22 3.0 negative manual P -0.07 0
IV.T0110.HHZ. 2023-11-26T22:13:09.24 3.0 negative manual P 0.95 0
IV.SAMA.HNN. 2023-11-26T22:13:08.03 0.6 undecidable manual S 230 37.0296 50 0.22 46
IV.PTQR.HHZ. 2023-11-26T22:13:08.61 0.3 undecidable manual S 86 38.628 50 0.35 67
IV.GUAR.HHZ. 2023-11-26T22:13:08.17 0.6 undecidable manual S 126 38.5281 50 -0.07 48
IV.FAGN.HHZ. 2023-11-26T22:13:07.81 3.0 negative manual P 1.65 0
IV.RDP.HNE. 2023-11-26T22:13:07.16 0.6 undecidable manual S 215 32.0457 50 0.66 41
IV.POFI.HHZ. 2023-11-26T22:13:07.28 3.0 negative manual P -0.55 0
IV.LNSS.HHZ. 2023-11-26T22:13:07.47 3.0 undecidable manual P 0.15 0
IV.LRP.EHZ. 2023-11-26T22:13:06.67 3.0 positive manual P -0.34 0
IV.FIAM.HHZ. 2023-11-26T22:13:06.90 0.3 undecidable manual S 27 33.6441 50 -0.03 73
IV.RM33.EHZ. 2023-11-26T22:13:06.22 3.0 negative manual P 0.01 0
IV.VIVA.HHN. 2023-11-26T22:13:06.07 0.6 undecidable manual S 206 30.5472 50 -0.01 49
IV.ARRO.EHZ. 2023-11-26T22:13:06.85 3.0 positive manual P -0.21 0
IT.MMP1.HGE. 2023-11-26T22:13:06.05 0.6 undecidable manual S 332 31.8459 50 -0.38 45
IV.VVLD.HHZ. 2023-11-26T22:13:05.58 3.0 positive manual P -0.12 0
IV.RMP.HHZ. 2023-11-26T22:13:05.21 0.6 undecidable manual S 223 27.8499 108 -0.05 49
IV.LATB.EHZ. 2023-11-26T22:13:05.15 0.6 undecidable manual P 177 55.8996 50 -0.19 45
IV.GIUL.HHZ. 2023-11-26T22:13:04.97 0.6 undecidable manual P 151 55.5 50 -0.31 44
IV.PTQR.HHZ. 2023-11-26T22:13:02.45 0.3 negative manual P 86 38.628 50 -0.24 69
IV.VIVA.HHN. 2023-11-26T22:13:02.21 0.6 undecidable manual P 206 30.5472 50 0.78 39
IV.GUAR.HHZ. 2023-11-26T22:13:02.51 0.6 positive manual P 126 38.5281 50 -0.17 47
IV.SAMA.HNN. 2023-11-26T22:13:02.42 0.6 undecidable manual P 230 37.0296 50 -0.01 48
IT.CSO1.HGZ. 2023-11-26T22:13:01.76 0.6 undecidable manual S 48 17.1717 118 -0.1 49
IT.MMP1.HGE. 2023-11-26T22:13:01.94 0.6 undecidable manual P 332 31.8459 50 0.31 46
IV.FIAM.HHZ. 2023-11-26T22:13:01.73 0.1 positive manual P 27 33.6441 50 -0.19 94
IV.RDP.HNE. 2023-11-26T22:13:01.79 0.6 undecidable manual P 215 32.0457 50 0.12 48
IV.MTCE.HHZ. 2023-11-26T22:13:01.23 0.3 undecidable manual S 280 15.9729 120 -0.25 71
IV.RMP.HHZ. 2023-11-26T22:13:00.96 0.1 positive manual P 223 27.8499 108 0 98
IT.CSO1.HGZ. 2023-11-26T22:12:59.54 0.3 undecidable manual P 48 17.1717 118 0.55 66
IV.MTCE.HHZ. 2023-11-26T22:12:58.76 0.1 undecidable manual P 280 15.9729 120 -0.01 100
IV.CERT.HHZ. 2023-11-26T22:12:58.94 0.3 undecidable manual S 143 6.6933 144 -0.11 75
IV.CERT.HHZ. 2023-11-26T22:12:57.47 0.1 undecidable manual P 143 6.6933 144 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCE.HHE. ML:1.8 0.0006575 0.74 AML other m 2023-11-26T22:13:02.90
IV.MTCE.HHN. ML:1.9 0.0007025 1.56 AML other m 2023-11-26T22:13:03.84
IV.PTQR.HHE. ML:1.8 0.00023150000000000002 0.94 AML other m 2023-11-26T22:13:09.25
IV.RMP.HHE. ML:2.6 0.00199 0.44 AML other m 2023-11-26T22:13:09.80
IV.GUAR.HHE. ML:1.9 0.000264 1.58 AML other m 2023-11-26T22:13:10.20
IV.GUAR.HNE. ML:1.9 0.0003085 0.54 AML other m 2023-11-26T22:13:10.20
IV.GUAR.HHN. ML:1.9 0.000305 1.18 AML other m 2023-11-26T22:13:10.95
IV.RMP.HHN. ML:2.5 0.0017749999999999999 0.48 AML other m 2023-11-26T22:13:10.94
IV.PTQR.HHN. ML:1.9 0.0002585 0.8 AML other m 2023-11-26T22:13:11.49
IV.FIAM.HNN. ML:2.0 0.00047599999999999997 0.9 AML other m 2023-11-26T22:13:11.97
IV.FIAM.HHN. ML:2.0 0.00039949999999999995 0.9 AML other m 2023-11-26T22:13:11.97
IV.GUAR.HNN. ML:1.9 0.000307 0.42 AML other m 2023-11-26T22:13:12.35
IV.FIAM.HNE. ML:2.1 0.000575 0.66 AML other m 2023-11-26T22:13:14.08
IV.FIAM.HHE. ML:2.1 0.000516 0.66 AML other m 2023-11-26T22:13:14.09
IV.ARRO.EHN. ML:1.8 0.00011199999999999998 1.82 AML other m 2023-11-26T22:13:18.04
IV.ARRO.EHE. ML:1.7 0.0000968 0.22 AML other m 2023-11-26T22:13:18.17
IV.POFI.HHN. ML:1.3 0.000035799999999999996 0.52 AML other m 2023-11-26T22:13:20.64
IV.RM33.EHN. ML:1.8 0.000124 0.84 AML other m 2023-11-26T22:13:20.15
IV.VVLD.HHN. ML:1.8 0.0001212 0.74 AML other m 2023-11-26T22:13:20.64
IV.RM33.EHE. ML:1.9 0.00015 1.58 AML other m 2023-11-26T22:13:20.82
IV.LRP.EHN. ML:1.4 0.0000475 0.5 AML other m 2023-11-26T22:13:20.69
IV.LNSS.HHE. ML:1.9 0.0001395 1.56 AML other m 2023-11-26T22:13:21.80
IV.LRP.EHE. ML:1.9 0.0001285 1 AML other m 2023-11-26T22:13:21.20
IV.VVLD.HHE. ML:1.6 0.000089 1.52 AML other m 2023-11-26T22:13:24.04
IV.POFI.HHE. ML:1.4 0.0000471 0.84 AML other m 2023-11-26T22:13:24.12
IV.LNSS.HHN. ML:2.0 0.0001565 0.34 AML other m 2023-11-26T22:13:24.48
IV.SMA1.EHE. ML:2.2 0.0002055 0.36 AML other m 2023-11-26T22:13:24.77
IV.MOMA.HHN. ML:2.0 0.0001121 1.32 AML other m 2023-11-26T22:13:25.10
IV.T0110.HHN. ML:1.9 0.000126 1.5 AML other m 2023-11-26T22:13:25.15
IV.MOMA.HHE. ML:2.0 0.0001051 1.74 AML other m 2023-11-26T22:13:26.90
IV.SMA1.EHN. ML:2.1 0.0001635 0.36 AML other m 2023-11-26T22:13:26.96
IV.INTR.HHN. ML:1.8 0.0000969 1.54 AML other m 2023-11-26T22:13:27.11
IV.T0110.HHE. ML:2.0 0.000143 0.32 AML other m 2023-11-26T22:13:27.67
IV.MCI.EHE. ML:2.2 0.000158 1.56 AML other m 2023-11-26T22:13:27.13
IV.MCI.EHN. ML:2.0 0.00012415 0.66 AML other m 2023-11-26T22:13:27.64
IV.NRCA.HHE. ML:1.9 0.000089 0.42 AML other m 2023-11-26T22:13:28.76
IV.INTR.HHE. ML:1.6 0.00006125 0.82 AML other m 2023-11-26T22:13:29.28
IV.NRCA.HHN. ML:1.8 0.00006984999999999999 0.52 AML other m 2023-11-26T22:13:30.34
IV.ASSB.HHE. ML:1.8 0.0000441 0.48 AML other m 2023-11-26T22:13:34.17
IV.ASSB.HHN. ML:1.8 0.0000524 0.94 AML other m 2023-11-26T22:13:36.49
IV.CSP1.EHN. ML:2.4 0.00015900000000000002 0.38 AML other m 2023-11-26T22:13:38.38
IV.CSP1.EHE. ML:2.2 0.00011649999999999999 0.5 AML other m 2023-11-26T22:13:40.99
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