Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 03-11-2017 and time 20:48:05 (Italy) in region 2 km SE Onano (VT)

A magnitude ML 2.0 earthquake occured in region: 2 km SE Onano (VT), on

  • 03-11-2017 19:48:05 (UTC)
  • 03-11-2017 20:48:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6800, 11.8260 at 5 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
Onano VT 2 995 995
Grotte di Castro VT 4 2683 3678
Gradoli VT 5 1353 5031
Latera VT 6 836 5867
San Lorenzo Nuovo VT 7 2091 7958
Acquapendente VT 8 5506 13464
Proceno VT 9 557 14021
Sorano GR 9 3428 17449
Valentano VT 12 2868 20317
Castel Giorgio TR 13 2131 22448
Pitigliano GR 14 3818 26266
Bolsena VT 14 3991 30257
Castell'Azzara GR 15 1476 31733
Capodimonte VT 16 1731 33464
Ischia di Castro VT 16 2326 35790
Farnese VT 17 1527 37317
Castel Viscardo TR 17 2938 40255
Marta VT 18 3499 43754
Piansano VT 18 2079 45833
Allerona TR 19 1794 47627
Cellere VT 20 1188 48815

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Viterbo (67173 inhabitants)
59 Km E of Grosseto (82087 inhabitants)
65 Km N of Civitavecchia (52991 inhabitants)
66 Km SW of Perugia (166134 inhabitants)
69 Km W of Terni (111501 inhabitants)
78 Km W of Foligno (57155 inhabitants)
82 Km SE of Siena (53903 inhabitants)
88 Km S of Arezzo (99543 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 2.0 2017-11-03
19:48:05		 42.6803 11.8263 5 2018-09-04
09:09:15		 Bollettino Sismico Italiano INGV 53430481
Reviewed
Rev100 		ML 2.0 2017-11-03
19:48:05		 42.6915 11.8157 10 2017-11-03
19:57:13		 Sala Sismica INGV-Roma 51588331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-11-03 19:48:05 ± 0.13
Latitude 42.6803 ± 0.0063
Longitude 11.8263 ± 0.0061
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 53430481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 598
Semi-minor axis of confidence ellipse (meter) 517
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 321
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87684
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 53430481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-27 10:52:18

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 51588331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-11-03 19:57:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MILN.HHZ. 2017-11-03T19:49:51.57 3.0 undecidable manual Sg 12.85 0
BA.PZUN.HHZ. 2017-11-03T19:49:46.91 3.0 undecidable manual Sn -0.67 0
IV.SARZ.HHZ. 2017-11-03T19:49:44.45 3.0 undecidable manual Sg 13.58 0
IV.ORI.HHZ. 2017-11-03T19:49:20.80 3.0 undecidable manual Pn 7.19 0
IV.LIK.EHZ.01 2017-11-03T19:49:01.63 3.0 undecidable manual Sn -0.65 0
GU.BURY.HHZ. 2017-11-03T19:48:57.65 3.0 undecidable manual Pn -0.29 0
IV.COLB.HHZ. 2017-11-03T19:48:48.00 3.0 positive manual Pn -0.79 0
IV.TERO.HNZ. 2017-11-03T19:48:32.02 3.0 undecidable manual P 0.76 0
IV.MURB.HHZ. 2017-11-03T19:48:32.50 0.3 undecidable manual S 41 85.9473 50 0.45 63
IV.ATMI.HHZ. 2017-11-03T19:48:31.00 0.6 undecidable manual S 26 80.8635 50 0.3 44
IV.CAFI.HHZ. 2017-11-03T19:48:28.40 0.6 undecidable manual S 9 72.8715 50 -0.16 46
IV.ATTE.HHZ. 2017-11-03T19:48:27.90 0.6 undecidable manual S 37 71.6727 50 -0.33 44
IV.MAON.HHZ. 2017-11-03T19:48:25.90 1.0 undecidable manual S 244 63.2922 50 -0.11 24
IV.ATPI.EHZ. 2017-11-03T19:48:23.34 0.6 undecidable manual P 28 97.3248 50 0.81 36
IV.MURB.HHZ. 2017-11-03T19:48:20.88 0.3 undecidable manual P 41 85.9473 50 0.1 68
IV.CASP.HHZ. 2017-11-03T19:48:20.22 0.6 undecidable manual P 279 79.2651 50 0.47 42
IV.ATMI.HHZ. 2017-11-03T19:48:19.84 0.6 undecidable manual P 26 80.8635 50 -0.16 45
IV.TOLF.HHN. 2017-11-03T19:48:18.32 0.3 undecidable manual P 168 69.8745 50 0.03 71
IV.ATTE.HHZ. 2017-11-03T19:48:18.41 0.3 undecidable manual P 37 71.6727 50 -0.17 69
IV.CAFI.HHZ. 2017-11-03T19:48:18.42 0.3 undecidable manual P 9 72.8715 50 -0.34 66
IV.MGAB.HHZ. 2017-11-03T19:48:17.90 1.0 undecidable manual S 42 34.743 99 0.32 24
IV.CESX.HHE. 2017-11-03T19:48:17.47 1.0 undecidable manual P 97 62.5929 50 0.29 23
IV.ARCI.HHZ. 2017-11-03T19:48:17.00 0.3 undecidable manual S 304 34.3434 99 -0.44 69
IV.MAON.HHZ. 2017-11-03T19:48:17.35 0.3 undecidable manual P 244 63.2922 50 0.06 71
IV.MOMA.HNZ. 2017-11-03T19:48:16.54 0.1 undecidable manual P 77 62.0934 50 -0.57 85
TV.SF01.EHZ. 2017-11-03T19:48:14.40 0.6 undecidable manual S 304 25.9518 102 -0.17 50
TV.SF04.EHZ. 2017-11-03T19:48:13.50 0.3 undecidable manual S 322 21.867 104 0.29 73
TV.SF13.HHN. 2017-11-03T19:48:13.60 0.3 undecidable manual S 312 22.755 103 0.1 76
TV.SF11.HHZ. 2017-11-03T19:48:13.10 0.3 undecidable manual S 330 24.0537 103 -0.85 61
TV.SF03.EHN. 2017-11-03T19:48:12.00 0.6 undecidable manual S 320 17.7711 107 0.17 50
IV.SACS.HHZ. 2017-11-03T19:48:12.80 0.3 undecidable manual S 20 19.869 105 0.26 74
IV.ARCI.HHZ. 2017-11-03T19:48:12.29 0.3 negative manual P 304 34.3434 99 -0.06 75
TV.SF01.EHZ. 2017-11-03T19:48:11.00 0.3 undecidable manual P 304 25.9518 102 0.31 72
TV.SF14.HHN. 2017-11-03T19:48:11.90 0.6 undecidable manual S 296 19.1697 106 -0.38 48
IV.MCIV.HHZ. 2017-11-03T19:48:11.50 0.3 undecidable manual S 312 16.3725 108 0.14 76
IV.MGAB.HHZ. 2017-11-03T19:48:11.94 0.3 undecidable manual P 42 34.743 99 -0.48 69
TV.SF04.EHZ. 2017-11-03T19:48:10.09 0.3 undecidable manual P 322 21.867 104 0.19 75
TV.SF13.HHN. 2017-11-03T19:48:10.24 0.1 undecidable manual P 312 22.755 103 0.17 100
IV.MCIV.HHZ. 2017-11-03T19:48:09.16 0.3 negative manual P 312 16.3725 108 0.32 73
TV.SF14.HHN. 2017-11-03T19:48:09.26 0.3 undecidable manual P 296 19.1697 106 -0.11 76
TV.SF03.EHN. 2017-11-03T19:48:09.41 0.3 undecidable manual P 320 17.7711 107 0.3 74
IV.SACS.HHZ. 2017-11-03T19:48:09.54 0.3 undecidable manual P 20 19.869 105 0.02 78
TV.SF11.HHZ. 2017-11-03T19:48:09.97 0.3 negative manual P 330 24.0537 103 -0.36 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHN. ML:2.5 0.000407 0.4 AML other m 2017-11-03T19:48:38.23
IV.SACS.HNE. ML:2.2 0.001295 0.24 AML other m 2017-11-03T19:48:13.79
TV.SF01.EHE. ML:1.9 0.00049 0.12 AML other m 2017-11-03T19:48:15.70
TV.SF04.EHE. ML:2.2 0.001091 0.2 AML other m 2017-11-03T19:48:16.65
TV.SF01.EHN. ML:2.0 0.0006504999999999999 0.7 AML other m 2017-11-03T19:48:18.59
IV.ARCI.HHN. ML:1.8 0.00027150000000000004 0.96 AML other m 2017-11-03T19:48:18.80
IV.ARCI.HHE. ML:1.6 0.00016199999999999998 0.52 AML other m 2017-11-03T19:48:19.29
IV.MGAB.HNN. ML:2.0 0.0003775 0.26 AML other m 2017-11-03T19:48:19.96
IV.MGAB.HHN. ML:2.0 0.0004345 1.12 AML other m 2017-11-03T19:48:20.82
IV.MGAB.HHE. ML:2.0 0.000391 0.4 AML other m 2017-11-03T19:48:20.88
IV.MGAB.HNE. ML:1.9 0.0003595 0.42 AML other m 2017-11-03T19:48:20.89
IV.CAFI.HHE. ML:1.8 0.00010305 0.2 AML other m 2017-11-03T19:48:29.12
IV.MAON.HHE. ML:1.6 0.0000701 0.8 AML other m 2017-11-03T19:48:29.82
IV.CAFI.HHN. ML:1.7 0.00007465 0.26 AML other m 2017-11-03T19:48:30.43
IV.CASP.HHN. ML:2.0 0.000132 0.38 AML other m 2017-11-03T19:48:33.40
IV.ATMI.HHN. ML:2.4 0.00030649999999999997 0.42 AML other m 2017-11-03T19:48:33.54
IV.CASP.HHE. ML:1.7 0.00006345000000000001 0.34 AML other m 2017-11-03T19:48:33.72
IV.ATMI.HHE. ML:2.4 0.0003165 0.72 AML other m 2017-11-03T19:48:34.57
IV.ATTE.HHN. ML:1.8 0.0001032 0.44 AML other m 2017-11-03T19:48:36.23
IV.MURB.HNN. ML:2.5 0.00038 0.28 AML other m 2017-11-03T19:48:37.18
IV.LIK.EHN.01 ML:3.0 0.0003215 1.9 AML other m 2017-11-03T19:49:29.04
IV.MCIV.HHN. ML:1.8 0.0006292505500000001 0.1152 AML other m 2017-11-03T19:48:12.54
IV.SACS.HHE. ML:2.2 0.001304839 0.2432 AML other m 2017-11-03T19:48:13.79
IV.SACS.HNN. ML:2.1 0.0010039786 0.3584 AML other m 2017-11-03T19:48:13.57
IV.SACS.HHN. ML:2.1 0.00101350935 0.384 AML other m 2017-11-03T19:48:13.57
TV.SF04.EHN. ML:2.2 0.001303018 0.1408 AML other m 2017-11-03T19:48:14.30
IV.MAON.HHN. ML:1.6 0.00007088353 0.3072 AML other m 2017-11-03T19:48:29.54
IV.ATTE.HHE. ML:1.8 0.000110691485 0.2816 AML other m 2017-11-03T19:48:31.67
IV.MURB.HNE. ML:2.4 0.00034190604999999997 0.4736 AML other m 2017-11-03T19:48:37.36
IV.MURB.HHE. ML:2.4 0.0003332734 0.4352 AML other m 2017-11-03T19:48:37.34
IV.ATPI.EHN. ML:1.8 0.00006023552 0.6912 AML other m 2017-11-03T19:48:43.19
IV.ATPI.EHE. ML:1.8 0.00005898746 0.4736 AML other m 2017-11-03T19:48:45.79
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