Earthquake with magnitude of ML 0.3 on date 20-11-2009 and time 15:05:41 (Italy) in region 3 km NE San Lorenzo Nuovo (VT)

A magnitude ML 0.3 earthquake occured in region: 3 km NE San Lorenzo Nuovo (VT), on

  • 20-11-2009 14:05:41 (UTC)
  • 20-11-2009 15:05:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7060, 11.9270 at 10 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
San Lorenzo Nuovo VT 3 2091 2091
Castel Giorgio TR 4 2131 4222
Grotte di Castro VT 6 2683 6905
Acquapendente VT 7 5506 12411
Bolsena VT 8 3991 16402
Castel Viscardo TR 8 2938 19340
Gradoli VT 9 1353 20693
Onano VT 9 995 21688
Proceno VT 10 557 22245
Latera VT 12 836 23081
Allerona TR 13 1794 24875
Porano TR 15 1966 26841
Orvieto TR 15 20630 47471
Bagnoregio VT 17 3650 51121
Lubriano VT 17 909 52030
Capodimonte VT 17 1731 53761
Valentano VT 18 2868 56629
Sorano GR 18 3428 60057
Ficulle TR 19 1669 61726
Marta VT 19 3499 65225
San Casciano dei Bagni SI 19 1632 66857
Fabro TR 19 2876 69733

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of Viterbo (67173 inhabitants)
58 Km SW of Perugia (166134 inhabitants)
61 Km W of Terni (111501 inhabitants)
67 Km E of Grosseto (82087 inhabitants)
69 Km N of Civitavecchia (52991 inhabitants)
69 Km W of Foligno (57155 inhabitants)
84 Km SE of Siena (53903 inhabitants)
85 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
Md 2.0
ML 0.3
2009-11-20
14:05:41
42.706 11.927 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 992729
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-11-20 14:05:41 ± 0.16
Latitude 42.7060 ± 0.0090
Longitude 11.9270 ± 0.0184
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 992729

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1737
Semi-minor axis of confidence ellipse (meter) 579
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 1802.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24641
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 992729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:00:39

Md:2.0

Field Value
Value 2.0
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 992729
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:00:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHE. 2009-11-20T14:05:51.53 0.6 undecidable manual Sg 33 27.3504 0.374 46
IV.LATE.HHZ. 2009-11-20T14:05:47.30 0.6 undecidable manual Sg 224 14.3745 0.076 50
IV.SACS.HHE. 2009-11-20T14:05:47.67 0.6 undecidable manual Sg 355 15.873 0.012 50
IV.MGAB.HHE. 2009-11-20T14:05:46.65 0.3 undecidable manual Pg 33 27.3504 -0.278 70
IV.LATE.HHZ. 2009-11-20T14:05:44.68 0.6 undecidable manual Pg 224 14.3745 0.023 50
IV.SACS.HHE. 2009-11-20T14:05:44.87 0.1 undecidable manual Pg 355 15.873 -0.037 100
IV.FAGN.HHZ. 2009-11-20T14:05:21.39 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHE. 2009-11-20T14:05:16.38 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