Earthquake with magnitude of ML 1.5 on date 23-03-2007 and time 20:29:15 (UTC) in region 2 km S Montecchio (TR)

A magnitude ML 1.5 earthquake occured in region: 2 km S Montecchio (TR), on

  • 23-03-2007 20:29:15 (UTC)
  • 23-03-2007 21:29:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6460, 12.2880 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
Montecchio TR 2 1676 1676
Guardea TR 3 1836 3512
Alviano TR 6 1463 4975
Baschi TR 6 2722 7697
Castiglione in Teverina VT 7 2329 10026
Lugnano in Teverina TR 9 1494 11520
Civitella d'Agliano VT 9 1640 13160
Graffignano VT 10 2292 15452
Avigliano Umbro TR 12 2558 18010
Amelia TR 14 11897 29907
Attigliano TR 15 2028 31935
Lubriano VT 15 909 32844
Giove TR 15 1928 34772
Bagnoregio VT 16 3650 38422
Porano TR 16 1966 40388
Celleno VT 16 1355 41743
Montecastrilli TR 16 5022 46765
Orvieto TR 17 20630 67395
Bomarzo VT 17 1805 69200
Penna in Teverina TR 18 1099 70299
Todi PG 18 16851 87150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Viterbo (67173 inhabitants)
31 Km W of Terni (111501 inhabitants)
49 Km SW of Foligno (57155 inhabitants)
52 Km S of Perugia (166134 inhabitants)
74 Km NE of Civitavecchia (52991 inhabitants)
80 Km NW of Guidonia Montecelio (88673 inhabitants)
85 Km N of Roma (2864731 inhabitants)
87 Km NW of Tivoli (56533 inhabitants)
97 Km E of Grosseto (82087 inhabitants)
97 Km W of L'Aquila (69753 inhabitants)
97 Km N of Fiumicino (78395 inhabitants)
97 Km SE 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 1.5
2007-03-23
20:29:15
42.646 12.288 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 620399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-03-23 20:29:15 ± 0.15
Latitude 42.6460 ± 0.0045
Longitude 12.2880 ± 0.0110
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 620399

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 895
Semi-minor axis of confidence ellipse (meter) 474
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 1029.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 244
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64032
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 620399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:49:24

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 620399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:49:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.BHE. 2007-03-23T20:29:35.31 0.1 undecidable manual Sg 51 63.9915 0.045 97
IV.LNSS.BHZ. 2007-03-23T20:29:34.65 0.1 undecidable manual Sg 94 61.5939 0.041 97
IV.MNS.BHN. 2007-03-23T20:29:29.83 0.1 undecidable manual Sg 132 43.2234 0.125 99
IV.MURB.HHN. 2007-03-23T20:29:28.19 0.1 undecidable manual Pg 16 71.0733 0.195 93
IV.LATE.HHN. 2007-03-23T20:29:27.09 10.0 undecidable manual Sg 0 0 0
IV.NRCA.SHZ. 2007-03-23T20:29:27.69 0.1 undecidable manual Pg 73 70.4739 -0.202 93
IV.LNSS.BHZ. 2007-03-23T20:29:26.51 0.1 undecidable manual Pg 94 61.5939 -0.014 98
IV.CESI.BHE. 2007-03-23T20:29:26.79 0.1 undecidable manual Pg 51 63.9915 -0.114 95
IV.MNS.BHN. 2007-03-23T20:29:23.62 0.1 undecidable manual Pg 132 43.2234 -0.074 100
MN.VSL.HHN. 2007-03-23T20:29:20.67 10.0 undecidable manual Pg 0 0 0
IV.LATE.HHN. 2007-03-23T20:29:18.81 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