Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 15-01-2018 and time 01:34:07 (Italy) in region 5 km N Tuscania (VT)

A magnitude ML 2.1 earthquake occured in region: 5 km N Tuscania (VT), on

  • 15-01-2018 00:34:07 (UTC)
  • 15-01-2018 01:34:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4640, 11.8940 at 11 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
Tuscania VT 5 8451 8451
Arlena di Castro VT 6 854 9305
Piansano VT 8 2079 11384
Marta VT 8 3499 14883
Tessennano VT 9 345 15228
Capodimonte VT 10 1731 16959
Cellere VT 11 1188 18147
Canino VT 12 5286 23433
Valentano VT 13 2868 26301
Montefiascone VT 14 13432 39733
Ischia di Castro VT 14 2326 42059
Farnese VT 17 1527 43586
Viterbo VT 18 67173 110759
Latera VT 19 836 111595

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Viterbo (67173 inhabitants)
42 Km N of Civitavecchia (52991 inhabitants)
63 Km W of Terni (111501 inhabitants)
72 Km E of Grosseto (82087 inhabitants)
80 Km NW of Roma (2864731 inhabitants)
82 Km NW of Fiumicino (78395 inhabitants)
82 Km SW of Perugia (166134 inhabitants)
86 Km NW of Guidonia Montecelio (88673 inhabitants)
86 Km SW of Foligno (57155 inhabitants)
93 Km NW of Tivoli (56533 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 2.1 2018-01-15
00:34:07		 42.4642 11.8937 11 2019-04-24
14:49:25		 Bollettino Sismico Italiano INGV 55706021
Reviewed
Rev100 		ML 2.1 2018-01-15
00:34:06		 42.4703 11.9012 8 2018-01-15
00:42:27		 Sala Sismica INGV-Roma 53200401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-01-15 00:34:07 ± 0.27
Latitude 42.4642 ± 0.0063
Longitude 11.8937 ± 0.0073
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55706021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 770
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.35253
Epicentral distance of station farthest from the epicenter (degree) 1.21049
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 46
Type of magnitude ML
Reference to an origin 53200401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-01-15 00:42:27

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 55706021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-19 09:12:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2018-01-15T00:34:36.80 0.3 undecidable manual S 3 96.126 50 1.43 41
IV.PARC.HHZ. 2018-01-15T00:34:30.29 0.3 undecidable manual P 12 134.3655 50 0.93 50
IV.MOMA.HHZ. 2018-01-15T00:34:27.65 0.6 undecidable manual S 55 66.7776 50 0.1 49
IV.MAON.HHZ. 2018-01-15T00:34:27.65 0.3 undecidable manual S 267 62.5929 50 1.24 49
IV.SMA1.EHZ. 2018-01-15T00:34:27.22 0.6 undecidable manual P 81 119.2917 50 0.18 43
IV.T1299.EHZ. 2018-01-15T00:34:26.55 0.6 undecidable manual P 80 114.996 50 0.16 44
IV.T1214.EHZ. 2018-01-15T00:34:26.28 0.6 undecidable manual P 73 112.1988 50 0.32 43
IV.RCAV.EHZ. 2018-01-15T00:34:26.07 0.6 undecidable manual P 128 110.3118 50 0.41 42
IV.RM33.HNE. 2018-01-15T00:34:25.65 0.3 undecidable manual P 87 108.114 50 0.32 65
IV.CESX.HHE. 2018-01-15T00:34:25.28 0.3 undecidable manual S 74 58.8966 50 -0.14 74
IV.ATMI.HHZ. 2018-01-15T00:34:24.77 0.3 undecidable manual P 17 101.2209 50 0.51 63
IV.ARCI.HHZ. 2018-01-15T00:34:24.26 0.6 undecidable manual S 322 54.9006 50 -0.1 50
IV.MURB.HHZ. 2018-01-15T00:34:24.63 0.1 negative manual P 30 102.4197 50 0.19 90
IV.SRES.HHE. 2018-01-15T00:34:24.98 0.6 undecidable manual S 116 56.499 50 0.2 49
IV.CESI.HHZ. 2018-01-15T00:34:24.64 0.6 undecidable manual P 54 101.9202 50 0.28 44
IV.RMP.HHN. 2018-01-15T00:34:24.71 1.0 undecidable manual P 137 98.3238 50 0.89 18
IV.CERT.HHE. 2018-01-15T00:34:24.73 0.3 undecidable manual P 122 106.116 50 -0.28 66
IV.LNSS.HHZ. 2018-01-15T00:34:23.03 0.6 undecidable manual P 80 94.9383 50 -0.27 45
IV.CAFI.HHZ. 2018-01-15T00:34:23.55 0.1 undecidable manual P 3 96.126 50 0.07 93
IV.CASP.HHZ. 2018-01-15T00:34:23.64 0.3 undecidable manual P 294 91.4418 50 0.89 55
TV.SF01.EHZ. 2018-01-15T00:34:22.06 0.6 undecidable manual S 325 47.0196 50 -0.21 50
IV.T1221.HNE. 2018-01-15T00:34:22.49 0.3 undecidable manual P 60 89.3439 50 0.06 71
IV.MTCE.HHZ. 2018-01-15T00:34:21.65 0.3 undecidable manual P 125 85.1481 50 -0.14 70
TV.SF03.EHN. 2018-01-15T00:34:21.00 0.3 undecidable manual S 336 41.2254 50 0.29 74
TV.SF13.HHE. 2018-01-15T00:34:21.25 0.3 undecidable manual S 330 45.2214 50 -0.53 70
TV.SF04.EHZ. 2018-01-15T00:34:21.65 0.6 undecidable manual S 335 45.4212 50 -0.17 50
IV.TOLF.HHZ. 2018-01-15T00:34:21.50 0.3 undecidable manual S 169 45.2214 50 -0.29 74
IV.SACS.HHZ. 2018-01-15T00:34:21.14 0.3 undecidable manual S 2 42.7239 50 0.03 78
IV.MCIV.HHZ. 2018-01-15T00:34:20.03 0.3 undecidable manual S 333 39.1275 50 -0.12 77
IV.ARRO.EHZ. 2018-01-15T00:34:19.92 0.3 undecidable manual P 80 72.372 50 0.1 73
TV.SF14.HHE. 2018-01-15T00:34:19.28 0.3 undecidable manual S 325 39.5271 50 -0.97 58
IV.MOMA.HHZ. 2018-01-15T00:34:18.68 0.3 undecidable manual P 55 66.7776 50 -0.28 71
IV.MAON.HHZ. 2018-01-15T00:34:18.84 0.1 positive manual P 267 62.5929 50 0.54 90
IV.ARCI.HHZ. 2018-01-15T00:34:17.25 0.3 undecidable manual P 322 54.9006 50 0.13 75
IV.CESX.HHE. 2018-01-15T00:34:17.33 0.6 undecidable manual P 74 58.8966 50 -0.4 47
IV.SRES.HHE. 2018-01-15T00:34:17.18 0.3 undecidable manual P 116 56.499 50 -0.18 74
TV.SF04.EHZ. 2018-01-15T00:34:15.52 0.3 undecidable manual P 335 45.4212 50 -0.14 76
IV.TOLF.HHZ. 2018-01-15T00:34:15.05 0.1 positive manual P 169 45.2214 50 -0.58 91
TV.SF01.EHZ. 2018-01-15T00:34:15.95 0.3 undecidable manual P 325 47.0196 50 0.04 77
TV.SF13.HHE. 2018-01-15T00:34:15.43 0.1 undecidable manual P 330 45.2214 50 -0.2 100
TV.SF14.HHE. 2018-01-15T00:34:14.01 0.1 negative manual P 325 39.5271 50 -0.74 86
IV.MCIV.HHZ. 2018-01-15T00:34:14.44 0.1 undecidable manual P 333 39.1275 50 -0.25 100
IV.SACS.HHZ. 2018-01-15T00:34:14.92 0.1 positive manual P 2 42.7239 50 -0.32 98
TV.SF03.EHN. 2018-01-15T00:34:14.60 0.6 undecidable manual P 336 41.2254 50 -0.41 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCIV.HHE. ML:2.1 0.00041179089999999997 0.336 AML other m 2018-01-15T00:34:20.84
IV.SACS.HHE. ML:2.2 0.00045318295 0.32 AML other m 2018-01-15T00:34:21.81
IV.SACS.HNE. ML:2.2 0.0004765705 0.32 AML other m 2018-01-15T00:34:21.81
IV.TOLF.HHN. ML:2.5 0.0008490023 0.3 AML other m 2018-01-15T00:34:21.81
IV.SACS.HNN. ML:2.0 0.00033149135 0.28 AML other m 2018-01-15T00:34:22.20
IV.SACS.HHN. ML:2.0 0.0003339448 0.24 AML other m 2018-01-15T00:34:22.21
TV.SF04.EHE. ML:2.3 0.00058343575 0.2 AML other m 2018-01-15T00:34:22.54
IV.MCIV.HHN. ML:1.9 0.00028404894999999996 0.432 AML other m 2018-01-15T00:34:22.62
IV.TOLF.HHE. ML:2.4 0.000811612 0.26 AML other m 2018-01-15T00:34:22.70
TV.SF04.EHN. ML:2.2 0.0004650505 0.32 AML other m 2018-01-15T00:34:23.83
TV.SF01.EHN. ML:2.1 0.0003224179 0.3 AML other m 2018-01-15T00:34:24.71
TV.SF01.EHE. ML:2.1 0.00037839575000000005 0.4 AML other m 2018-01-15T00:34:27.16
IV.ARCI.HHN. ML:1.6 0.000090998095 0.32 AML other m 2018-01-15T00:34:27.54
IV.MOMA.HNN. ML:2.3 0.0003471901 0.66 AML other m 2018-01-15T00:34:27.51
IV.ARCI.HHE. ML:1.6 0.00008560381 0.38 AML other m 2018-01-15T00:34:29.23
IV.MAON.HHN. ML:2.1 0.00023762245 0.46 AML other m 2018-01-15T00:34:29.68
IV.MOMA.HHE. ML:2.4 0.00041799999999999997 1 AML other m 2018-01-15T00:34:30.62
IV.MOMA.HHN. ML:2.2 0.0002495 1.16 AML other m 2018-01-15T00:34:30.13
IV.MAON.HHE. ML:1.9 0.00016894405000000002 0.24 AML other m 2018-01-15T00:34:30.04
IV.MOMA.HNE. ML:2.3 0.0003782145 0.33 AML other m 2018-01-15T00:34:30.62
IV.ARRO.EHN. ML:2.1 0.00020516005 0.56 AML other m 2018-01-15T00:34:30.83
IV.ARRO.EHE. ML:2.0 0.0001564595 0.3 AML other m 2018-01-15T00:34:35.27
IV.MTCE.HHN. ML:2.0 0.00011578265000000002 0.38 AML other m 2018-01-15T00:34:36.13
IV.CAFI.HHE. ML:1.8 0.00007537931999999999 0.5 AML other m 2018-01-15T00:34:37.15
IV.ASSB.HHE. ML:1.8 0.00007116798 0.58 AML other m 2018-01-15T00:34:37.56
IV.CASP.HHN. ML:2.0 0.00011037197999999999 0.34 AML other m 2018-01-15T00:34:37.48
IV.CAFI.HHN. ML:1.8 0.00007157221499999999 0.34 AML other m 2018-01-15T00:34:38.16
IV.ASSB.HHN. ML:1.9 0.000091062955 0.34 AML other m 2018-01-15T00:34:38.85
IV.CASP.HHE. ML:2.0 0.00010693515 0.26 AML other m 2018-01-15T00:34:38.80
IV.CAFI.HNE. ML:1.9 0.000082994085 0.56 AML other m 2018-01-15T00:34:39.10
IV.MTCE.HHE. ML:1.7 0.000066663745 0.38 AML other m 2018-01-15T00:34:40.20
IV.CESI.HHN. ML:2.0 0.00009543537 0.34 AML other m 2018-01-15T00:34:41.10
IV.MURB.HHE. ML:2.6 0.00042085105 0.28 AML other m 2018-01-15T00:34:42.79
IV.MURB.HNE. ML:2.6 0.0004066166 0.27 AML other m 2018-01-15T00:34:42.94
IV.MURB.HHN. ML:2.7 0.0004952317 0.36 AML other m 2018-01-15T00:34:42.84
IV.MURB.HNN. ML:2.7 0.0004502449 0.33 AML other m 2018-01-15T00:34:42.86
IV.CESI.HHE. ML:2.0 0.00009368517500000001 0.58 AML other m 2018-01-15T00:34:43.97
IV.T1214.EHE. ML:2.0 0.00009038647999999999 0.32 AML other m 2018-01-15T00:34:44.13
IV.ATMI.HHE. ML:2.4 0.000257 1.72 AML other m 2018-01-15T00:34:44.90
IV.T1299.EHE. ML:1.8 0.000051739599999999995 0.54 AML other m 2018-01-15T00:34:45.70
IV.ATMI.HHN. ML:2.4 0.00023950000000000002 0.46 AML other m 2018-01-15T00:34:45.42
IV.SMA1.EHN. ML:2.2 0.000118361 0.46 AML other m 2018-01-15T00:34:45.80
IV.T1214.HNN. ML:2.1 0.000095380995 0.384 AML other m 2018-01-15T00:34:46.66
IV.T1214.EHN. ML:2.0 0.00008456677500000001 0.4 AML other m 2018-01-15T00:34:46.49
IV.T1299.EHN. ML:1.7 0.000037617025 0.5 AML other m 2018-01-15T00:34:46.55
IV.RDP.HHE. ML:2.2 0.0001517591 0.46 AML other m 2018-01-15T00:34:46.80
IV.RDP.HHN. ML:2.4 0.00024924885 0.36 AML other m 2018-01-15T00:34:47.39
IV.PARC.HHE. ML:1.7 0.000030628064999999997 0.32 AML other m 2018-01-15T00:34:50.23
IV.PARC.HHN. ML:1.8 0.00003508677 0.6 AML other m 2018-01-15T00:34:50.47
IV.SMA1.EHE. ML:2.2 0.000117873 0.54 AML other m 2018-01-15T00:34:52.86
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
Waveforms Seismic signals in miniseed + resp format Download