Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 16-01-2021 and time 14:22:11 (Italy) in region 5 km N Cottanello (RI)

A magnitude ML 1.9 earthquake occured in region: 5 km N Cottanello (RI), on

  • 16-01-2021 13:22:11 (UTC)
  • 16-01-2021 14:22:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4510, 12.6980 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
Cottanello RI 5 563 563
Configni RI 5 633 1196
Greccio RI 6 1558 2754
Stroncone TR 6 4917 7671
Contigliano RI 7 3783 11454
Montasola RI 7 395 11849
Colli sul Velino RI 9 533 12382
Vacone RI 9 256 12638
Torri in Sabina RI 12 1256 13894
Labro RI 12 374 14268
Calvi dell'Umbria TR 12 1856 16124
Montebuono RI 12 883 17007
Casperia RI 13 1246 18253
Terni TR 13 111501 129754
Tarano RI 13 1444 131198
Morro Reatino RI 14 373 131571
Roccantica RI 14 563 132134
Rieti RI 15 47698 179832
Rivodutri RI 15 1253 181085
Monte San Giovanni in Sabina RI 15 714 181799
Selci RI 16 1106 182905
Arrone TR 16 2763 185668
Cantalupo in Sabina RI 16 1685 187353
Poggio Bustone RI 17 2055 189408
Narni TR 17 19785 209193
Cantalice RI 17 2755 211948
Montefranco TR 17 1276 213224
Poggio Catino RI 17 1341 214565
Collevecchio RI 17 1577 216142
Otricoli TR 18 1869 218011
Forano RI 19 3179 221190
Polino TR 19 233 221423

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SE of Terni (111501 inhabitants)
49 Km E of Viterbo (67173 inhabitants)
50 Km N of Guidonia Montecelio (88673 inhabitants)
55 Km N of Tivoli (56533 inhabitants)
56 Km S of Foligno (57155 inhabitants)
59 Km W of L'Aquila (69753 inhabitants)
64 Km N of Roma (2864731 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
84 Km E of Civitavecchia (52991 inhabitants)
84 Km NE of Fiumicino (78395 inhabitants)
85 Km N of Velletri (53303 inhabitants)
86 Km W of Teramo (54892 inhabitants)
88 Km N of Pomezia (62966 inhabitants)
95 Km N of Aprilia (73446 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 1.9 2021-01-16
13:22:11		 42.4513 12.6977 9 2021-07-12
16:54:57		 Bollettino Sismico Italiano INGV 86941741
Reviewed
Rev100 		ML 1.9 2021-01-16
13:22:11		 42.4428 12.6983 9 2021-01-16
13:35:39		 Sala Sismica INGV-Roma 86303851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 13:22:11 ± 0.06
Latitude 42.4513 ± 0.0027
Longitude 12.6977 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86941741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 286
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.74014
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 86303851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 13:35:39

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 86941741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-04 12:10:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRTC.HHZ. 2021-01-16T13:22:53.83 3.0 undecidable manual S 0.37 0
IV.CSP1.EHZ. 2021-01-16T13:22:37.11 0.6 undecidable manual S 30 82.1511 50 0.63 39
IV.PE3.EHZ. 2021-01-16T13:22:37.08 3.0 positive manual P 2.93 0
IV.FDMO.HHZ. 2021-01-16T13:22:34.15 0.3 undecidable manual S 26 72.2721 50 0.31 65
IV.TOLF.HHN. 2021-01-16T13:22:33.63 0.1 undecidable manual S 233 71.5728 50 -0.03 92
IT.MTCL.HGZ. 2021-01-16T13:22:32.28 1.0 undecidable manual S 22 64.9905 50 0.38 22
IV.MTRA.EHE. 2021-01-16T13:22:32.38 0.1 undecidable manual S 59 66.378 50 0.12 92
IV.FEMA.HNE. 2021-01-16T13:22:31.82 0.6 undecidable manual S 27 63.492 50 0.32 44
IV.CESI.HHZ. 2021-01-16T13:22:31.85 0.6 undecidable manual S 15 63.6918 50 0.31 44
IV.BARO.HNZ. 2021-01-16T13:22:30.53 0.6 undecidable manual S 247 57.5979 50 0.61 41
IV.CAMP.HHE. 2021-01-16T13:22:30.58 1.0 undecidable manual S 81 58.8966 50 0.3 22
IV.SMA1.EHZ. 2021-01-16T13:22:29.83 0.6 undecidable manual S 69 55.7997 50 0.39 44
IV.T1299.HNN. 2021-01-16T13:22:28.69 1.0 undecidable manual S 67 51.9036 50 0.29 23
IV.NRCA.HHZ. 2021-01-16T13:22:28.69 0.6 undecidable manual S 39 54.3012 50 -0.36 45
IV.MTCE.HHZ. 2021-01-16T13:22:27.53 0.6 undecidable manual S 176 47.7189 50 0.25 46
IV.RM33.EHZ. 2021-01-16T13:22:26.12 0.3 undecidable manual S 81 42.7239 50 0.16 71
IV.SACS.HHE. 2021-01-16T13:22:25.60 0.3 undecidable manual P 305 77.9664 50 0.24 66
IT.GNU.HGE. 2021-01-16T13:22:25.25 0.6 undecidable manual S 345 40.4262 50 -0.09 48
IV.MOMA.HNZ. 2021-01-16T13:22:25.23 0.3 undecidable manual S 345 40.4262 50 -0.12 72
IV.CSP1.EHZ. 2021-01-16T13:22:25.86 0.1 undecidable manual P 30 82.1511 50 -0.15 88
IV.FDMO.HHZ. 2021-01-16T13:22:24.19 0.1 undecidable manual P 26 72.2721 50 -0.29 88
IV.TOLF.HHN. 2021-01-16T13:22:24.63 0.6 undecidable manual P 233 71.5728 50 0.25 44
IV.FIAM.HHZ. 2021-01-16T13:22:24.93 0.6 undecidable manual S 120 39.9267 50 -0.28 46
IV.FEMA.HNE. 2021-01-16T13:22:23.38 0.6 undecidable manual P 27 63.492 50 0.25 45
IV.MGAB.HHZ. 2021-01-16T13:22:23.99 0.3 undecidable manual P 317 69.9744 50 -0.14 68
IT.MTCL.HGZ. 2021-01-16T13:22:23.29 0.6 undecidable manual P 22 64.9905 50 -0.07 46
IV.MTRA.EHE. 2021-01-16T13:22:23.27 0.6 undecidable manual P 59 66.378 50 -0.3 44
IV.CAMP.HHE. 2021-01-16T13:22:22.89 0.3 undecidable manual P 81 58.8966 50 0.46 65
IV.CESI.HHZ. 2021-01-16T13:22:22.94 0.1 undecidable manual P 15 63.6918 50 -0.22 90
IV.LNSS.HHZ. 2021-01-16T13:22:22.88 0.6 undecidable manual S 59 32.6451 50 -0.39 46
IV.BARO.HNZ. 2021-01-16T13:22:22.58 0.6 undecidable manual P 247 57.5979 50 0.36 44
IV.SRES.HHZ. 2021-01-16T13:22:21.96 0.6 undecidable manual S 213 28.3494 108 -0.09 49
IV.T1299.HNN. 2021-01-16T13:22:21.23 0.3 undecidable manual P 67 51.9036 50 -0.11 71
IV.NRCA.HHZ. 2021-01-16T13:22:21.45 0.1 undecidable manual P 39 54.3012 50 -0.27 91
IV.SMA1.EHZ. 2021-01-16T13:22:21.96 0.3 undecidable manual P 69 55.7997 50 0.02 72
IV.MTCE.HHZ. 2021-01-16T13:22:20.97 0.3 undecidable manual P 176 47.7189 50 0.28 69
IT.MMP1.HGE. 2021-01-16T13:22:20.29 0.3 undecidable manual S 169 22.8549 112 0.04 76
IV.CESX.HHZ. 2021-01-16T13:22:19.26 0.6 undecidable manual S 333 19.6692 115 0.02 51
IV.FIAM.HHZ. 2021-01-16T13:22:19.21 0.3 undecidable manual P 120 39.9267 50 -0.29 70
IV.RM33.EHZ. 2021-01-16T13:22:19.74 0.3 undecidable manual P 81 42.7239 50 -0.2 71
IT.GNU.HGE. 2021-01-16T13:22:19.25 0.1 undecidable manual P 345 40.4262 50 -0.33 92
IV.MOMA.HNZ. 2021-01-16T13:22:19.21 0.1 undecidable manual P 345 40.4262 50 -0.37 91
IV.ARRO.EHZ. 2021-01-16T13:22:18.16 0.3 undecidable manual S 21 15.2736 121 0.27 73
IV.LNSS.HHZ. 2021-01-16T13:22:18.05 0.1 undecidable manual P 59 32.6451 50 -0.33 93
IV.SRES.HHZ. 2021-01-16T13:22:17.52 0.3 undecidable manual P 213 28.3494 108 -0.16 73
IT.MMP1.HGE. 2021-01-16T13:22:16.56 0.1 undecidable manual P 169 22.8549 112 -0.08 100
IV.CESX.HHZ. 2021-01-16T13:22:16.04 0.3 undecidable manual P 333 19.6692 115 -0.01 76
IV.ARRO.EHZ. 2021-01-16T13:22:15.64 0.1 undecidable manual P 21 15.2736 121 0.37 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.8 0.0005845045 0.1792 AML other m 2021-01-16T13:22:18.30
IV.ARRO.EHN. ML:2.0 0.000904 0.24 AML other m 2021-01-16T13:22:18.45
IV.CESX.HHN. ML:1.6 0.00029757655 0.2944 AML other m 2021-01-16T13:22:19.40
IV.CESX.HHE. ML:1.5 0.0002324235 0.2816 AML other m 2021-01-16T13:22:21.88
IV.SRES.HHN. ML:1.3 0.0001118183 0.2752 AML other m 2021-01-16T13:22:23.24
IV.SRES.HHE. ML:1.4 0.00014396 0.1408 AML other m 2021-01-16T13:22:23.56
IV.LNSS.HHN. ML:2.3 0.0008385 0.14 AML other m 2021-01-16T13:22:23.51
IV.LNSS.HNN. ML:2.2 0.0007941511 0.1408 AML other m 2021-01-16T13:22:23.51
IV.LNSS.HHE. ML:2.1 0.0006314547000000001 0.1216 AML other m 2021-01-16T13:22:23.99
IV.LNSS.HNE. ML:2.1 0.0006118284 0.1152 AML other m 2021-01-16T13:22:23.99
IV.RM33.EHN. ML:1.7 0.00015679300000000001 0.3008 AML other m 2021-01-16T13:22:26.75
IV.RM33.HNN. ML:1.7 0.00015696350000000002 0.16 AML other m 2021-01-16T13:22:26.75
IV.RM33.EHE. ML:1.8 0.00019869155 0.16 AML other m 2021-01-16T13:22:27.28
IV.RM33.HNE. ML:1.9 0.00024894785000000003 0.2048 AML other m 2021-01-16T13:22:27.50
IV.NRCA.HHE. ML:2.0 0.00021910249999999997 0.1792 AML other m 2021-01-16T13:22:30.03
IV.NRCA.HNE. ML:1.9 0.00020350944999999998 0.1664 AML other m 2021-01-16T13:22:30.12
IV.FIAM.HHN. ML:1.1 0.000045726815000000005 0.4608 AML other m 2021-01-16T13:22:30.33
IV.SMA1.EHE. ML:1.9 0.000174 0.24 AML other m 2021-01-16T13:22:30.85
IV.NRCA.HNN. ML:1.9 0.000188695065 0.1216 AML other m 2021-01-16T13:22:30.98
IV.NRCA.HHN. ML:2.0 0.000234 1.88 AML other m 2021-01-16T13:22:30.04
IV.CESI.HNE. ML:2.0 0.00017363881 0.5248 AML other m 2021-01-16T13:22:32.37
IV.CESI.HNN. ML:2.2 0.0002675751 0.288 AML other m 2021-01-16T13:22:32.20
IV.CESI.HHN. ML:2.1 0.0002285 0.26 AML other m 2021-01-16T13:22:32.33
IV.SMA1.EHN. ML:1.5 0.00007508211 0.32 AML other m 2021-01-16T13:22:32.46
IV.CESI.HHE. ML:1.9 0.0001615 0.24 AML other m 2021-01-16T13:22:32.36
IV.FDMO.HHN. ML:1.9 0.00011401900000000001 0.224 AML other m 2021-01-16T13:22:34.51
IV.FDMO.HHE. ML:2.0 0.0001655 1.76 AML other m 2021-01-16T13:22:35.11
IV.MGAB.HHN. ML:1.7 0.000085856555 0.256 AML other m 2021-01-16T13:22:35.11
IV.MGAB.HNN. ML:1.9 0.0001333578 0.5248 AML other m 2021-01-16T13:22:35.35
IV.FIAM.HHE. ML:1.0 0.000035455164999999996 0.4032 AML other m 2021-01-16T13:22:35.71
IV.MGAB.HNE. ML:2.1 0.00018799797000000002 0.3136 AML other m 2021-01-16T13:22:35.66
IV.MGAB.HHE. ML:2.0 0.000153113105 0.32 AML other m 2021-01-16T13:22:36.79
IV.CSP1.EHE. ML:2.2 0.0002194443 0.5248 AML other m 2021-01-16T13:22:39.26
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