Earthquake with magnitude of ML 1.2 on date 19-03-2009 and time 09:53:16 (Italy) in region 3 km W Castel Viscardo (TR)

A magnitude ML 1.2 earthquake occured in region: 3 km W Castel Viscardo (TR), on

  • 19-03-2009 08:53:16 (UTC)
  • 19-03-2009 09:53:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7430, 11.9640 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
Castel Viscardo TR 4 2938 2938
Castel Giorgio TR 4 2131 5069
San Lorenzo Nuovo VT 8 2091 7160
Allerona TR 8 1794 8954
Acquapendente VT 8 5506 14460
Grotte di Castro VT 11 2683 17143
Bolsena VT 11 3991 21134
Proceno VT 11 557 21691
Orvieto TR 12 20630 42321
Porano TR 13 1966 44287
Onano VT 13 995 45282
Ficulle TR 14 1669 46951
Gradoli VT 14 1353 48304
Fabro TR 14 2876 51180
San Casciano dei Bagni SI 16 1632 52812
Lubriano VT 17 909 53721
Latera VT 17 836 54557
Bagnoregio VT 17 3650 58207
Parrano TR 18 534 58741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of Viterbo (67173 inhabitants)
53 Km SW of Perugia (166134 inhabitants)
59 Km W of Terni (111501 inhabitants)
65 Km W of Foligno (57155 inhabitants)
69 Km E of Grosseto (82087 inhabitants)
74 Km N of Civitavecchia (52991 inhabitants)
81 Km S of Arezzo (99543 inhabitants)
82 Km SE of Siena (53903 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 1.2
2009-03-19
08:53:16
42.743 11.964 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 751419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-19 08:53:16 ± 0.48
Latitude 42.7430 ± 0.0252
Longitude 11.9640 ± 0.0380
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 751419

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3306
Semi-minor axis of confidence ellipse (meter) 1920
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 317
Circular confidence region, given by single value of horizontal uncertainty (meter) 4177.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.79
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37412
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 751419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:12:28

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 751419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:12:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FSSB.HHE. 2009-03-19T08:53:28.40 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHZ. 2009-03-19T08:53:25.69 0.6 undecidable manual Sg 33 22.3554 0.889 41
IV.ARCI.HHZ. 2009-03-19T08:53:24.33 0.3 undecidable manual Pg 287 41.5251 0.161 76
IV.STR3.BHN. 2009-03-19T08:53:24.94 10.0 undecidable manual Sg 0 0 0
IV.SACS.HHZ. 2009-03-19T08:53:22.09 0.3 undecidable manual Sg 340 12.5763 0.196 79
IV.MGAB.HHZ. 2009-03-19T08:53:20.83 0.1 undecidable manual Pg 33 22.3554 -0.355 100
IV.LATE.HHN. 2009-03-19T08:53:20.85 0.3 undecidable manual Pg 222 19.3695 0.213 78
IV.SACS.HHZ. 2009-03-19T08:53:19.05 0.1 undecidable manual Pg 340 12.5763 -0.456 99
IV.STR3.BHN. 2009-03-19T08:53:18.33 10.0 undecidable manual Pg 0 0 0
IV.CESI.HHZ. 2009-03-19T08:53:17.34 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