Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 11-11-2021 and time 04:01:17 (UTC) in region 4 km E Montasola (RI)

A magnitude ML 1.5 earthquake occured in region: 4 km E Montasola (RI), on

  • 11-11-2021 04:01:17 (UTC)
  • 11-11-2021 05:01:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3710, 12.7230 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
Montasola RI 4 395 395
Cottanello RI 5 563 958
Casperia RI 6 1246 2204
Contigliano RI 6 3783 5987
Roccantica RI 6 563 6550
Monte San Giovanni in Sabina RI 7 714 7264
Torri in Sabina RI 7 1256 8520
Vacone RI 7 256 8776
Poggio Catino RI 9 1341 10117
Configni RI 9 633 10750
Cantalupo in Sabina RI 9 1685 12435
Selci RI 10 1106 13541
Greccio RI 10 1558 15099
Montebuono RI 10 883 15982
Tarano RI 11 1444 17426
Rieti RI 12 47698 65124
Poggio Mirteto RI 12 6315 71439
Montenero Sabino RI 12 299 71738
Salisano RI 13 567 72305
Calvi dell'Umbria TR 13 1856 74161
Forano RI 13 3179 77340
Mompeo RI 14 530 77870
Montopoli di Sabina RI 14 4210 82080
Collevecchio RI 15 1577 83657
Casaprota RI 15 744 84401
Stroncone TR 15 4917 89318
Colli sul Velino RI 15 533 89851
Stimigliano RI 15 2328 92179
Belmonte in Sabina RI 15 636 92815
Castelnuovo di Farfa RI 16 1059 93874
Filacciano RM 16 477 94351
Poggio San Lorenzo RI 17 589 94940
Frasso Sabino RI 17 743 95683
Torricella in Sabina RI 17 1342 97025
Torrita Tiberina RM 17 1089 98114
Ponzano Romano RM 18 1155 99269
Toffia RI 18 1058 100327
Fara in Sabina RI 18 13742 114069
Poggio Nativo RI 18 2622 116691
Cantalice RI 18 2755 119446
Labro RI 18 374 119820
Cittaducale RI 19 6828 126648
Nazzano RM 19 1436 128084
Monteleone Sabino RI 19 1224 129308
Rivodutri RI 20 1253 130561
Morro Reatino RI 20 373 130934
Magliano Sabina RI 20 3774 134708
Rocca Sinibalda RI 20 815 135523
Poggio Bustone RI 20 2055 137578

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km S of Terni (111501 inhabitants)
41 Km N of Guidonia Montecelio (88673 inhabitants)
46 Km N of Tivoli (56533 inhabitants)
51 Km E of Viterbo (67173 inhabitants)
56 Km W of L'Aquila (69753 inhabitants)
57 Km NE of Roma (2864731 inhabitants)
65 Km S of Foligno (57155 inhabitants)
76 Km N of Velletri (53303 inhabitants)
78 Km NE of Fiumicino (78395 inhabitants)
80 Km N of Pomezia (62966 inhabitants)
83 Km E of Civitavecchia (52991 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
87 Km N of Aprilia (73446 inhabitants)
87 Km W 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
Bulletin
Rev1000 		ML 1.5 2021-11-11
04:01:17		 42.3713 12.7232 10 2022-03-30
13:04:34		 Bollettino Sismico Italiano INGV 100559921
Reviewed
Rev100 		ML 1.6 2021-11-11
04:01:17		 42.3742 12.7343 10 2021-11-11
04:07:11		 Sala Sismica INGV-Roma 97388411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-11 04:01:17 ± 0.06
Latitude 42.3713 ± 0.0027
Longitude 12.7232 ± 0.0049
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 100559921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 357
Semi-minor axis of confidence ellipse (meter) 282
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.12321
Epicentral distance of station farthest from the epicenter (degree) 0.80220
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 97388411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-11 04:07:11

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 24
Type of magnitude ML
Reference to an origin 100559921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-03 11:26:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-11-11T04:01:44.50 0.3 undecidable manual S 26 89.0442 50 0.42 61
IV.FDMO.HHZ. 2021-11-11T04:01:42.00 0.3 undecidable manual S 22 79.5648 50 0.46 62
IV.BARO.HNZ. 2021-11-11T04:01:35.50 0.3 undecidable manual S 256 56.7987 50 0.03 70
IV.MOMA.HHZ. 2021-11-11T04:01:33.60 0.6 undecidable manual S 345 49.617 50 0.05 47
IV.CSP1.EHZ. 2021-11-11T04:01:33.31 0.6 undecidable manual P 26 89.0442 50 0.44 40
IV.CERT.HNE. 2021-11-11T04:01:33.90 0.3 undecidable manual S 155 51.4152 50 -0.14 69
IV.FDMO.HHZ. 2021-11-11T04:01:31.63 1.0 undecidable manual P 22 79.5648 50 0.23 22
IV.GAVE.EHZ. 2021-11-11T04:01:30.20 0.6 undecidable manual S 21 38.2284 50 -0.32 46
IV.MTCE.HHZ. 2021-11-11T04:01:30.80 0.6 undecidable manual S 178 38.7279 50 0.16 47
IV.LNSS.HHZ. 2021-11-11T04:01:29.80 0.6 undecidable manual S 45 36.5412 50 -0.25 46
IV.FIAM.HHZ. 2021-11-11T04:01:29.40 0.3 undecidable manual S 109 34.2435 50 -0.06 73
IV.BARO.HNZ. 2021-11-11T04:01:28.05 1.0 undecidable manual P 256 56.7987 50 0.15 23
IV.CESX.HHZ. 2021-11-11T04:01:28.10 0.3 undecidable manual S 337 28.5492 50 0.16 72
IV.SRES.HHZ. 2021-11-11T04:01:26.10 0.3 undecidable manual S 230 22.9548 113 -0.11 74
IV.MOMA.HHZ. 2021-11-11T04:01:26.61 0.3 undecidable manual P 345 49.617 50 -0.17 69
IV.ARRO.EHZ. 2021-11-11T04:01:26.00 0.6 undecidable manual S 9 23.3544 113 -0.32 47
IV.CERT.HNE. 2021-11-11T04:01:26.61 0.6 undecidable manual P 155 51.4152 50 -0.46 43
IV.MTCE.HHZ. 2021-11-11T04:01:25.08 0.3 undecidable manual P 178 38.7279 50 -0.03 73
IV.GAVE.EHZ. 2021-11-11T04:01:24.79 0.1 positive manual P 21 38.2284 50 -0.25 93
IV.LNSS.HHZ. 2021-11-11T04:01:24.63 0.1 positive manual P 45 36.5412 50 -0.14 95
IV.FIAM.HHZ. 2021-11-11T04:01:24.40 0.3 undecidable manual P 109 34.2435 50 -0.03 73
IV.CESX.HHZ. 2021-11-11T04:01:23.60 0.3 undecidable manual P 337 28.5492 50 0.05 74
IT.MMP1.HGZ. 2021-11-11T04:01:23.80 0.3 undecidable manual S 171 13.6752 125 0.42 70
IV.ARRO.EHZ. 2021-11-11T04:01:22.60 0.1 negative manual P 9 23.3544 113 -0.01 100
IV.SRES.HHZ. 2021-11-11T04:01:22.34 0.3 undecidable manual P 230 22.9548 113 -0.21 72
IT.MMP1.HGZ. 2021-11-11T04:01:21.19 0.6 undecidable manual P 171 13.6752 125 0.28 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SRES.HHN. ML:0.9 0.000048371015 0.1984 AML other m 2021-11-11T04:01:27.54
IV.ARRO.EHE. ML:1.4 0.00017649999999999998 0.16 AML other m 2021-11-11T04:01:26.77
IV.SRES.HHE. ML:0.9 0.00005630708 0.0992 AML other m 2021-11-11T04:01:27.73
IV.ARRO.EHN. ML:1.5 0.000208 0.2 AML other m 2021-11-11T04:01:27.43
IV.CESX.HHN. ML:1.1 0.000059438009999999996 0.3008 AML other m 2021-11-11T04:01:30.37
IV.LNSS.HHE. ML:1.8 0.00026374540000000004 0.2176 AML other m 2021-11-11T04:01:30.81
IV.CESX.HHE. ML:1.0 0.000054205125 0.2976 AML other m 2021-11-11T04:01:31.06
IV.LNSS.HHN. ML:2.0 0.000338 1.74 AML other m 2021-11-11T04:01:31.93
IV.GAVE.EHN. ML:1.9 0.0003145 0.14 AML other m 2021-11-11T04:01:31.15
IV.GAVE.EHE. ML:1.8 0.00023456645 0.2432 AML other m 2021-11-11T04:01:30.94
IV.MOMA.HHN. ML:1.4 0.000058114265 0.2176 AML other m 2021-11-11T04:01:34.71
IV.MOMA.HHE. ML:1.4 0.00006994999999999999 0.56 AML other m 2021-11-11T04:01:37.46
IV.FDMO.HHE. ML:1.5 0.00004603005 0.24 AML other m 2021-11-11T04:01:42.73
IV.CSP1.EHN. ML:1.8 0.00007052323499999998 0.2816 AML other m 2021-11-11T04:01:48.18
IV.FDMO.HHN. ML:1.3 0.000030391095 0.1792 AML other m 2021-11-11T04:01:43.12
IV.CSP1.EHE. ML:1.8 0.00007495887500000001 0.4608 AML other m 2021-11-11T04:01:48.50
IV.FIAM.HHN. ML:0.8 0.000024125925 0.4608 AML other m 2021-11-11T04:01:32.71
IV.FIAM.HNE. ML:2.7 0.0019570895 1.8208 AML other m 2021-11-11T04:01:33.49
IV.FIAM.HHE. ML:0.6 0.000016256755 0.2592 AML other m 2021-11-11T04:01:32.71
IV.LNSS.HNN. ML:1.9 0.0002958592 0.16 AML other m 2021-11-11T04:01:30.93
IV.LNSS.HNE. ML:1.8 0.0002512705 0.208 AML other m 2021-11-11T04:01:30.81
IV.GAVE.HNE. ML:1.9 0.00030441684999999997 0.2016 AML other m 2021-11-11T04:01:31.04
IV.MTCE.HHE. ML:0.9 0.000032267094999999994 0.16 AML other m 2021-11-11T04:01:32.12
IV.MTCE.HHN. ML:1.0 0.000035955100000000004 0.24 AML other m 2021-11-11T04:01:31.72
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