Earthquake with magnitude of ML 1.9 on date 06-07-2006 and time 21:50:14 (UTC) in region 3 km E Bolsena (VT)

A magnitude ML 1.9 earthquake occured in region: 3 km E Bolsena (VT), on

  • 06-07-2006 21:50:14 (UTC)
  • 06-07-2006 23:50:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6510, 12.0280 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.

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 3 3991 3991
Bagnoregio VT 6 3650 7641
Lubriano VT 7 909 8550
Porano TR 7 1966 10516
Castel Giorgio TR 8 2131 12647
Orvieto TR 10 20630 33277
San Lorenzo Nuovo VT 11 2091 35368
Castel Viscardo TR 12 2938 38306
Montefiascone VT 13 13432 51738
Celleno VT 13 1355 53093
Grotte di Castro VT 13 2683 55776
Civitella d'Agliano VT 14 1640 57416
Gradoli VT 14 1353 58769
Castiglione in Teverina VT 15 2329 61098
Capodimonte VT 15 1731 62829
Marta VT 15 3499 66328
Baschi TR 16 2722 69050
Latera VT 17 836 69886
Acquapendente VT 17 5506 75392
Graffignano VT 17 2292 77684
Onano VT 18 995 78679
Allerona TR 19 1794 80473
Valentano VT 19 2868 83341
Proceno VT 20 557 83898

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Viterbo (67173 inhabitants)
52 Km W of Terni (111501 inhabitants)
59 Km SW of Perugia (166134 inhabitants)
65 Km SW of Foligno (57155 inhabitants)
65 Km NE of Civitavecchia (52991 inhabitants)
76 Km E of Grosseto (82087 inhabitants)
92 Km S of Arezzo (99543 inhabitants)
92 Km NW of Roma (2864731 inhabitants)
92 Km NW of Guidonia Montecelio (88673 inhabitants)
93 Km SE of Siena (53903 inhabitants)
99 Km N of Fiumicino (78395 inhabitants)
99 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
Md 2.2
ML 1.9
2006-07-06
21:50:14
42.651 12.028 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 578539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-07-06 21:50:14 ± 0.26
Latitude 42.6510 ± 0.0135
Longitude 12.0280 ± 0.0196
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 578539

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1438
Semi-minor axis of confidence ellipse (meter) 1411
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 2193.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.78
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.17541
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 578539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:05:25

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 578539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:05:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.SHZ. 2006-07-06T21:50:41.26 0.3 undecidable manual Sg 77 90.8424 -0.174 33
IV.FSSB.SHZ. 2006-07-06T21:50:37.18 0.1 undecidable manual Pg 27 130.4694 1.1 58
IV.TOLF.HHN. 2006-07-06T21:50:35.38 0.3 undecidable manual Sg 182 65.1903 0.792 29
IV.ARV.SHZ. 2006-07-06T21:50:35.59 0.3 undecidable manual Pg 38 119.5914 1.202 43
IV.MNS.BHZ. 2006-07-06T21:50:33.03 0.3 undecidable manual Sg 119 60.9945 -0.451 33
IV.SNTG.SHZ. 2006-07-06T21:50:32.32 0.3 undecidable manual Pg 48 99.9222 0.959 50
IV.NRCA.SHZ. 2006-07-06T21:50:29.50 0.1 undecidable manual Pg 77 90.8424 -0.461 83
IV.ARCI.HHE. 2006-07-06T21:50:29.91 0.3 undecidable manual Sg 297 50.2164 -0.682 31
IV.MURB.HHN. 2006-07-06T21:50:28.37 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHN. 2006-07-06T21:50:25.71 0.1 undecidable manual Pg 182 65.1903 -0.3 90
IV.MNS.BHZ. 2006-07-06T21:50:24.91 0.1 undecidable manual Pg 119 60.9945 -0.464 87
IV.ARCI.HHE. 2006-07-06T21:50:23.47 0.1 undecidable manual Pg 297 50.2164 -0.231 94
IV.LATE.HHZ. 2006-07-06T21:50:22.24 0.1 undecidable manual Sg 257 18.7701 0.736 43
IV.SACS.HHZ. 2006-07-06T21:50:22.57 0.3 undecidable manual Sg 336 23.9538 -0.605 33
IV.LATE.HHZ. 2006-07-06T21:50:18.65 0.1 positive manual Pg 257 18.7701 0.192 100
IV.SACS.HHZ. 2006-07-06T21:50:18.89 0.1 undecidable manual Pg 336 23.9538 -0.529 92
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download