2007 Chuetsu-oki, Oguni Nagaoka

Plots of original ground motion, extracted pulse, and residual ground motion:

Map of epicenter, rupture extent and station location:

Ground motion information:

NGA Record Sequence Number 4874

Magnitude = 6.8
Closest Distance = 20 km
Hypocentral Distance = 29 km
Vs30 = 425 m/s
Mechanism = Reverse-oblique

T_p = 0.8 s
PGV = 80.3 cm/s

Orientation of strongest pulse, relative to north = 306 degrees
Orientation of strongest pulse, relative to fault parallel = 88 degrees
Pulse in fault normal direction = 1
Pulse due to directivity = 0

Comments:

Pulse is late and not very big

Directivity parameters:

X = 0.53
s = 17.08 km
θ = 51.7

Y = 0.51
d = 12.22 km
φ = 58.6

IDP = 0.4
Rowshandel parameter = -0.22

Notes:

These results were computed November 1st, 2012
These results are based on the June 2012 version of the NGA West 2 database
If you have any observations, comments or requests regarding this data, please e-mail Jack Baker and Shrey Shahi

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