Earthquake with magnitude of ML 1.4 on date 07-01-2007 and time 23:07:27 (UTC) in region 1 km E Grotte di Castro (VT)

A magnitude ML 1.4 earthquake occured in region: 1 km E Grotte di Castro (VT), on

  • 07-01-2007 23:07:27 (UTC)
  • 08-01-2007 00:07:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6780, 11.8820 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
Grotte di Castro VT 1 2683 2683
San Lorenzo Nuovo VT 2 2091 4774
Gradoli VT 4 1353 6127
Onano VT 6 995 7122
Latera VT 7 836 7958
Acquapendente VT 8 5506 13464
Castel Giorgio TR 9 2131 15595
Bolsena VT 9 3991 19586
Proceno VT 10 557 20143
Valentano VT 13 2868 23011
Castel Viscardo TR 13 2938 25949
Sorano GR 14 3428 29377
Capodimonte VT 14 1731 31108
Marta VT 16 3499 34607
Allerona TR 17 1794 36401
Ischia di Castro VT 18 2326 38727
Pitigliano GR 18 3818 42545
Porano TR 18 1966 44511
Piansano VT 18 2079 46590
Castell'Azzara GR 18 1476 48066
Bagnoregio VT 19 3650 51716
Orvieto TR 19 20630 72346
Farnese VT 19 1527 73873
Lubriano VT 19 909 74782
Montefiascone VT 20 13432 88214

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Viterbo (67173 inhabitants)
63 Km SW of Perugia (166134 inhabitants)
63 Km E of Grosseto (82087 inhabitants)
64 Km W of Terni (111501 inhabitants)
65 Km N of Civitavecchia (52991 inhabitants)
74 Km W of Foligno (57155 inhabitants)
84 Km SE of Siena (53903 inhabitants)
88 Km S of Arezzo (99543 inhabitants)
100 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 2.0
ML 1.4
2007-01-07
23:07:27
42.678 11.882 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 608869
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-01-07 23:07:27 ± 0.2
Latitude 42.6780 ± 0.0180
Longitude 11.8820 ± 0.0379
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 608869

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3579
Semi-minor axis of confidence ellipse (meter) 895
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 3689.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.75003
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.5
Num. used stations
Type of magnitude ML
Reference to an origin 608869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:37:15

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 608869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:37:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHE. 2007-01-07T23:07:53.21 0.1 undecidable manual Sg 39 83.25 0.654 37
IV.MURB.HHE. 2007-01-07T23:07:41.77 0.1 undecidable manual Pg 39 83.25 -0.342 82
IV.SACS.HHZ. 2007-01-07T23:07:35.59 0.1 undecidable manual Sg 7 19.0698 0.161 48
IV.LATE.HHZ. 2007-01-07T23:07:33.05 0.1 undecidable manual Sg 222 9.5793 0.145 49
IV.SACS.HHZ. 2007-01-07T23:07:32.07 0.1 undecidable manual Pg 7 19.0698 -0.159 96
IV.LATE.HHZ. 2007-01-07T23:07:30.80 0.1 positive manual Pg 222 9.5793 0.03 100
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