Earthquake with magnitude of ML 1.7 on date 07-07-2006 and time 00:02:50 (UTC) in region 4 km NE Bolsena (VT)

A magnitude ML 1.7 earthquake occured in region: 4 km NE Bolsena (VT), on

  • 07-07-2006 00:02:50 (UTC)
  • 07-07-2006 02:02:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6710, 12.0280 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bolsena VT 4 3991 3991
Castel Giorgio TR 6 2131 6122
Porano TR 6 1966 8088
Lubriano VT 8 909 8997
Bagnoregio VT 8 3650 12647
Orvieto TR 9 20630 33277
Castel Viscardo TR 10 2938 36215
San Lorenzo Nuovo VT 10 2091 38306
Grotte di Castro VT 13 2683 40989
Gradoli VT 14 1353 42342
Montefiascone VT 15 13432 55774
Celleno VT 15 1355 57129
Castiglione in Teverina VT 15 2329 59458
Civitella d'Agliano VT 15 1640 61098
Baschi TR 16 2722 63820
Acquapendente VT 16 5506 69326
Allerona TR 16 1794 71120
Capodimonte VT 17 1731 72851
Latera VT 17 836 73687
Marta VT 17 3499 77186
Onano VT 18 995 78181
Graffignano VT 18 2292 80473
Ficulle TR 19 1669 82142
Proceno VT 19 557 82699

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Viterbo (67173 inhabitants)
52 Km W of Terni (111501 inhabitants)
57 Km SW of Perugia (166134 inhabitants)
64 Km SW of Foligno (57155 inhabitants)
67 Km N of Civitavecchia (52991 inhabitants)
75 Km E of Grosseto (82087 inhabitants)
89 Km S of Arezzo (99543 inhabitants)
92 Km SE of Siena (53903 inhabitants)
94 Km NW of Guidonia Montecelio (88673 inhabitants)
94 Km NW of Roma (2864731 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
Md 2.2
ML 1.7
2006-07-07
00:02:50
42.671 12.028 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 578659
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-07-07 00:02:50 ± 0.14
Latitude 42.6710 ± 0.0108
Longitude 12.0280 ± 0.0110
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 578659

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1211
Semi-minor axis of confidence ellipse (meter) 895
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.17447
Epicentral distance of station farthest from the epicenter (degree) 0.81299
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 578659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:05:33

Md:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 578659
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:05:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.SHZ. 2006-07-07T00:03:17.81 0.1 undecidable manual Sg 78 90.243 0.385 42
IV.MNS.BHE. 2006-07-07T00:03:09.89 0.6 undecidable manual Sg 120 61.9935 0.003 24
IV.NRCA.SHZ. 2006-07-07T00:03:05.87 0.1 undecidable manual Pg 78 90.243 -0.323 84
IV.MURB.HHZ. 2006-07-07T00:03:04.74 0.1 undecidable manual Pg 31 77.0673 0.584 81
IV.MNS.BHE. 2006-07-07T00:03:01.62 0.1 undecidable manual Pg 120 61.9935 -0.221 91
IV.SACS.HHZ. 2006-07-07T00:02:59.01 0.1 undecidable manual Sg 334 22.0668 -0.193 49
IV.LATE.HHZ. 2006-07-07T00:02:58.75 0.3 undecidable manual Sg 251 19.3695 0.252 37
IV.LATE.HHZ. 2006-07-07T00:02:55.40 0.1 undecidable manual Pg 251 19.3695 0.135 100
IV.SACS.HHZ. 2006-07-07T00:02:55.37 0.1 undecidable manual Pg 334 22.0668 -0.302 96
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