Earthquake with magnitude of ML 1.1 on date 28-07-2008 and time 07:09:43 (UTC) in region W Castel Giorgio (TR)

A magnitude ML 1.1 earthquake occured in region: W Castel Giorgio (TR), on

  • 28-07-2008 07:09:43 (UTC)
  • 28-07-2008 09:09:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7100, 11.9750 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castel Giorgio TR 1 2131 2131
Castel Viscardo TR 6 2938 5069
San Lorenzo Nuovo VT 6 2091 7160
Bolsena VT 7 3991 11151
Grotte di Castro VT 9 2683 13834
Acquapendente VT 10 5506 19340
Porano TR 11 1966 21306
Orvieto TR 11 20630 41936
Allerona TR 11 1794 43730
Gradoli VT 12 1353 45083
Proceno VT 13 557 45640
Onano VT 13 995 46635
Lubriano VT 14 909 47544
Bagnoregio VT 14 3650 51194
Latera VT 15 836 52030
Ficulle TR 16 1669 53699
Fabro TR 18 2876 56575
Capodimonte VT 19 1731 58306
Montefiascone VT 20 13432 71738
San Casciano dei Bagni SI 20 1632 73370
Marta VT 20 3499 76869

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Viterbo (67173 inhabitants)
56 Km SW of Perugia (166134 inhabitants)
57 Km W of Terni (111501 inhabitants)
66 Km W of Foligno (57155 inhabitants)
70 Km N of Civitavecchia (52991 inhabitants)
71 Km E of Grosseto (82087 inhabitants)
85 Km S of Arezzo (99543 inhabitants)
86 Km SE of Siena (53903 inhabitants)
100 Km NW of Roma (2864731 inhabitants)
100 Km NW of Guidonia Montecelio (88673 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 1.1
2008-07-28
07:09:43
42.71 11.975 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 706959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-07-28 07:09:43 ± 0.31
Latitude 42.7100 ± 0.0135
Longitude 11.9750 ± 0.0269
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 706959

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2526
Semi-minor axis of confidence ellipse (meter) 895
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 2662.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22663
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 706959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:23:09

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 706959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:23:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2008-07-28T07:09:52.61 0.6 undecidable manual Sg 26 25.1526 0.02 51
IV.LATE.HHZ. 2008-07-28T07:09:49.43 0.6 undecidable manual Sg 233 17.5713 -0.612 44
IV.SACS.HHZ. 2008-07-28T07:09:49.94 0.6 undecidable manual Sg 341 16.3725 0.299 49
IV.MGAB.HHZ. 2008-07-28T07:09:48.75 0.1 undecidable manual Pg 26 25.1526 -0.084 100
IV.LATE.HHZ. 2008-07-28T07:09:47.81 0.1 undecidable manual Pg 233 17.5713 0.448 94
IV.SACS.HHZ. 2008-07-28T07:09:46.91 0.1 undecidable manual Pg 341 16.3725 -0.221 99
IV.FIAM.HHZ. 2008-07-28T07:09:21.11 10.0 undecidable manual Pg 0 0 0
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